Plastic Material
Our extensive plastic material library contains numerous rigid & flexible plastic materials. We also cater to custom requests for unique materials.
Rigid Plastic Material
Rigid injection molding material refers to a type of plastic that is designed to be hard and inflexible. It is commonly used for manufacturing products requiring rigidity and durability.
ABS - Acrylonitrile Butadiene Styrene
ABS material is currently the largest output, the most widely used polymer, ABS can organically unify the various properties of PS, SAN, BS, and has the excellent mechanical properties of tough, hard, rigid phase equilibrium. In general, ABS is a very versatile thermoplastic engineering plastics.
Advantages
- Mechanical properties and thermal properties are good
- High hardness
- The surface is easy to gold plating
- Fatigue resistance and stress cracking resistance,
- High impact strength
Disadvantages
- ABS is easily affected by solvent and stress cracking.
- ABS weather resistance is poor, susceptible to the action of sunlight, discoloration, brittle
ABS+PC - ABS + Polycarbonate Alloy
PC/ABS plastic is a new type of thermoplastic plastic, it is rigid and toughness, with high impact strength, high dimensional stability and a wide range of temperature, good electrical insulation performance and heat resistance, non-toxic and anti-ultraviolet (UV) properties.
Advantages
- High impact strength, chemical stability, good electrical properties.
- High impact resistance, high heat resistance, flame retardant, enhanced, transparent and other grades.
- Electrical insulation is good.
Disadvantages
- The thermal deformation temperature is low.
- Combustible.
- Poor weather resistance.
HDPE - High Density Polyethylene
HDPE is an opaque white wax-like material, the specific gravity is lighter than water, the specific gravity is 0.941~0.960, soft and ductile, but slightly harder than LDPE, also slightly elongate, non-toxic, tasteless. It is the product of polymerization under low pressure under the catalysis of Ziegler catalyst, so high density polyethylene is also known as low pressure polyethylene.
Advantages
- Its high strength, high-temperature resistance, corrosion resistance, non-toxic, wear resistance, and other characteristics.
- Impact resistance, cracking resistance, aging resistance, corrosion resistance, and a series of advantages.
- It has good machinability and heat sealing properties
Disadvantages
- Easy aging and cracking are not as good as LDPE.
- Small transparency, the poor barrier to air.
- Difficult to print, can not be electroplated, dull surface.
HIPS(High Impact Polyethylene)
HIPS began to develop rubber modified polystyrene (i.e. high impact polystyrene,HIPS) in 1950, mainly to solve the impact brittleness of PS. The outstanding characteristics of impact resistant polystyrene are easy to process, excellent dimensional stability, high impact strength and high rigidity. HIPS are only heat resistant. There are limits to oxygen permeability, UV light stability and oil resistance. With good transparency, high hardness, easy to form processing.
Advantages
The impact strength is very high, more than 4 times higher than ABS.
- Excellent electrical insulation,HIPS easy coloring, easy printing.
- Surface hardness is relatively high.
Disadvantages
- The gloss of the surface.
- Poor thermal stability, low heat resistance.
LCP - Liquid Crystal Polymer
LCP is a kind of high molecular material composed of rigid molecular chains. Under certain physical conditions, it can appear both liquid mobility and crystal physical properties of anisotropic state (this state is called liquid crystal state). LLCP is used to produce fiber,TLCP can be injection molding, extrusion molding and so on.
Advantages
- Good weather resistance and radiation resistance.
- It has excellent flame resistance.
- Corrosion resistance.
Disadvantages
- The mechanical strength is worse than high-temperature nylon.
- Poor strength of binding wire.
- Poor dyeing property.
- The appearance is dull and has flow marks.
Nylon 6 - Polyamide 6
It has high crystallinity, obvious melting point, large surface hardness, abrasion resistance, small friction coefficient, self-lubricity and silencing. Good low temperature performance, a certain heat resistance (can be used below 100 degrees). Non-toxic, odorless, no mildew, self-quenching, good weather resistance, but poor dyeing.
Advantages
- A combination of strength and durability, excellent rigidity, and heat resistance.
- Good processing, excellent fluidity, and thermal stability make the material processing conditions more relaxed, so injection parts are miniaturized.
- High thermal stability, can be up to 270 degrees wave peak solder without hanging tin.
Disadvantages
- Easy bibulous
- Poor light fastness
- Injection molding technology requirements are more strict
- Resistant to acids and oxidants
Nylon 11(Polyamide 11)
A general term for thermoplastic resins containing repeated amide groups – [NHCO] – in the molecular backbone. Includes aliphatic PA, adipo-aromatic PA, and aromatic PA. A generic term for all polyamides that have abrasion resistance and flexibility and resemble the chemical structure of proteins.
Advantages
- It has good softness, extensibility, electrical insulation and transparency.
- Its chemical stability is good, alkali resistance, resistance to general organic solvents.
- Low temperature resistance, easy to burn, soft properties, good elongation, electrical insulation, chemical stability.
Disadvantages
- Easy bibulous
- Poor light fastness
- Not resistant to strong acids and oxidants
Nylon 66(Polyamide 66)
Nylon 66 is translucent or opaque opalescent crystalline polymer, violet white or blue white light under ultraviolet light, high mechanical strength, good stress cracking resistance, is the best wear resistance PA, excellent self-lubricity, good chemical stability, especially excellent oil resistance, but easily soluble in phenol, formic acid and other polar solvents. Carbon black can improve weather resistance, water absorption (the balance of water absorption in the atmosphere is 2.5%), so the dimensional stability is poor, good molding processing.
Advantages
- Excellent wear resistance, heat resistance and electrical properties.
- High mechanical strength, self extinguishing, good dimensional stability.
- It has high strength, good rigidity, impact resistance, oil and chemical resistance, wear resistance and so on.
Disadvantages
- It absorbs water easily.
- High mechanical strength, self extinguishing, good dimensional stability.
- It has high strength, good rigidity, impact resistance, oil and chemical resistance, wear resistance and so on.
PBT - Polybutylene Terepthalate
PBT is a milky white translucent to opaque, crystalline thermoplastic polyester. With high heat resistance, toughness, fatigue resistance, self-lubrication, low coefficient of friction, weather resistance, low water absorption, in humid environments still maintain a variety of physical properties (including electrical properties), electrical insulation, but volume resistance, dielectric loss is large. Heat resistant water, alkali, acid, oil, but easy to halogenated hydrocarbon erosion, hydrolysis resistance is poor, low temperature can be quickly crystallized, good molding. It can work at 140℃ for a long time. The vertical and horizontal shrinkage of glass fiber reinforced products are not consistent, which is easy to warp the products.
Advantages
- It has high rigidity and hardness.
- Good heat resistance.
- Good appearance gloss function.
- Fast crystallization speed, good fluidity, excellent molding.
- Good resistance to chemicals, solvents and weather.
Disadvantages
- Poor stability at high temperatures.
- It burns easily.
- Water and alkaline resistance.
PC - Polycarbonate
PC is a kind of excellent comprehensive properties of amorphous thermoplastic resin, it has excellent electrical insulation, extensibility, dimensional stability and resistance to chemical attack, high strength, heat resistance and cold resistance, also has the self-extinguishing, flame retardant, non-toxic, can be colored and other advantages, in every corner of your life to see the shadow of the PC plastic, large-scale industrial production and easy processing features also make it The price is extremely low.
Advantages
- Excellent electrical insulation, extensibility, size stability and resistance to chemical erosion.
- High strength, heat resistance and cold resistance.
Disadvantages
- Lack of hardness, easy to scratch.
- Resistant to strong acids, alkalis, ultraviolet light, weak acids, and neutral oil.
PE - Polyethylene
PE polyethylene odorless, non-toxic, feel like wax, has excellent low temperature resistance, good chemical stability, can withstand most acid and alkali erosion. Insoluble in general solvents at room temperature, small water absorption, excellent electrical insulation. Polyethylene film has low water permeability but high air permeability, which is not suitable for fresh packaging and moisture-proof packaging. Inflammable, oxygen index is 17.4, low smoke when burning, a small amount of melting drops, the flame is yellow on the top and blue on the bottom, smell of paraffin. The surface of the product is non-polar, difficult to bond and print, and improved by surface treatment. The branched chain has poor resistance to photodegradation and oxidation.
Advantages
- Lightweight, good corrosion resistance (no need for corrosion protection).
- It has good flexibility, can be laid along with the terrain bending in construction, and has certain anti-seismic and anti-settlement abilities.
- It has good welding performance and a convenient connection.
- Long service life, at least 50 years.
Disadvantages
- Very sensitive to environmental stress, poor heat resistance aging.
PEI(Polyetherimid)
PEI is a thermoplastic engineering resin with good stability and energy level. One of the outstanding properties of PEI resin is that it can withstand the test of high temperature for a long time. This high heat resistance, combined with excellent flammability and UL LABORATORY certification, enables PEI resins to meet the demanding requirements of high temperature applications.
Advantages
- High heat resistance and Outstanding malleability.
- Impact resistance and Fatigue resistance.
- Excellent creep resistance and Excellent electrical performance.
Disadvantages
- Notch impact sensitivity.
- Alkali resistance is general, especially under heated conditions.
PET - Polyethylene Terepthalate
PET is a milky white or light yellow, highly crystalline polymer with a smooth glossy surface. It has excellent physical and mechanical properties in a wide temperature range, the long-term use temperature can reach 120℃, excellent electrical insulation, even at high temperature and high frequency, its electrical properties are still good, but poor corona resistance, creep resistance, fatigue resistance, friction resistance, dimensional stability are good.
Advantages
- Good mechanical properties, impact strength is 3~5 times of other films, good flexability.
- With excellent high temperature resistance, low temperature performance
- High transparency, can block ultraviolet rays, good gloss.
- Non-toxic, tasteless, good health and safety, can be directly used in food packaging.
Disadvantages
- The corona resistance is poor.
- No heat – resistant water immersion, no alkali resistance.
PMMA - Acrylic
PMMA stands for Polymethyl methacrylate, and it is a synthetic polymer that is commonly used in the production of transparent plastic sheets, lenses, and acrylic glass. It is also known as Acrylic or Plexiglas. Its optical clarity, high impact strength, and ease of fabrication make it a popular choice in a wide range of applications, including signage, automotive parts, and medical devices. Additionally, PMMA is resistant to UV light, weathering, and certain chemicals, making it a durable material that is well-suited for both indoor and outdoor use.
Advantages
- High transparency (high transmittance, transmits light that other transparent materials cannot pass through, higher than glass, light transmission range).
- Easy to process.
Lightweight. - High mechanical strength.
- Withstand outdoor aging.
- It has unique electrical properties.
Disadvantages
- Low surface hardness, resistant to scratch.
- Easy to fade.
- Production is difficult and costly.
- It is easily removed by thermal expansion and cold contraction.
- Poor polishing effect.
POM - Acetal
The molecule of polyformaldehyde is a high density, high crystalline linear polymer without side chains. The flexibility of the molecular chain of polyformaldehyde is large, the structure of the chain is high, so the crystallinity is high and the crystallization ability is strong. The crystallinity of homopolyformaldehyde is 75%~85%, and the crystallinity of co-formaldehyde is 70%~75%. Even after rapid quenching, the crystallinity can reach more than 65%. Completely amorphous polyformaldehyde can only be obtained at -100℃.
Advantages
- It has high mechanical strength and rigidity.
The highest fatigue strength. - Good environmental resistance and organic solvent resistance.
- Strong resistance to repeated impact.
- Wide range of temperature (-40 ° -120 °).
- Good electrical performance.
- Good resilience.
- It has a self-lubricating properties and good wear resistance.
Disadvantages
- There is no self-extinguishing.
- Forming shrinkage rate.
PP - Polypropylene
PP is a thermoplastic resin made by polymerization of propylene. Usually translucent colorless solid shape, non-toxic and odorless. PP itself is non-toxic, so it can be widely used as plastic bags, plastic bottles, plastic film and so on processing, but polypropylene plastic after processing, will add some plastic fillers, plastic pigments, plasticizers and other chemical components, and these chemical additives, is toxic.
Advantages
- Good mechanical properties, except impact resistance, other mechanical properties are better than
- polyethylene, good molding performance.
- It has high heat resistance.
- Good chemical properties, almost not water absorption, and the vast majority of chemical drugs do not react.
- Pure texture, no toxicity.
Good electrical insulation.
Disadvantages
- Product cold resistance is poor, low temperature impact strength is low.
- Products are susceptible to aging by light, heat and oxygen during use.
- The colouring is not good.
- Easy to burn.
- Poor toughness, high static electricity, poor dyeing, printing and adhesion.
PPA (Polyphthalamide)
PPA is a polyphthalamide resin, which is a semi-aromatic polyamide based on terephthalic acid or phthalic acid. With high modulus, high hardness, high cost performance, low water absorption, dimensional stability and excellent weldability and other advantages. PPA material has excellent comprehensive properties, showing good performance in thermal, electrical, physical and chemical resistance, especially high strength and excellent dimensional stability at high temperatures.
Advantages
- With high modulus, high hardness, high cost performance.
- Low water absorption, size stability, excellent welding and other advantages.
- High-temperature resistant material and excellent oil resistance.
Disadvantages
- It has strong hygroscopicity and poor dimensional stability.
PPS(Polyphenylene Sulfide)
PPS is a kind of thermoplastic engineering plastic with benzene sulfur group in its molecular backbone, which belongs to polyether plastics. PPS can crystallize and have a high melting point. Because PPS has good compatibility with many polymers and additives, it can be modified by various means to improve its mechanical and other properties.
Advantages
- Good electrical insulation and Good radiation resistance.
- High mechanical strength & high temperature resistance,
- chemical corrosion resistance & flame resistance,
- Good thermal stability &good electrical performance
Disadvantages
- The product has low temperature resistance, discoloration, black, yellow and black spots.
PS(Polystyrene Crystal)
PS is an amorphous polymer with good fluidity and low water absorption (less than 00.2%). It is a transparent plastic that is easy to be molded and processed. Its product light transmittance up to 88-92%, strong coloring power, high hardness. It has low water absorption and can maintain its mechanical properties and dimensional stability in humid environment. Optical properties are second only to acrylic resins.
Advantages
- Bright, light, transparent, good fluidity
- Good processing, good dimensional stability
- Easy coloring, low price
Disadvantages
- Poor toughness, easy to crisp.
SAN - Styrene Acrylonitrile
A SAN is styrene-acrylonitrile copolymer, also known AS resin, is colorless transparent thermoplastic resin, has high temperature resistance, excellent gloss and resistance to chemical media, have excellent hardness, rigidity, dimensional stability and high bearing capacity, with acrylonitrile and styrene AS raw materials by the suspension method of polymerization, using thermal initiator yi ke, the emulsion may be adopted Obtained by polymerization, because of the inherent transparency of the resin, it is used to manufacture transparent plastic products.
Advantages
- High transparency, not easy to crack, good impact strength.
- Non-toxic, can be used by contact, but will melt after reaching a certain temperature, not suitable for daily heating with microwave oven.
Disadvantages
- Easy aging, poor weather resistance, easy deformation.
Flexible Plastic Material
Flexible injection molding materials are pliable polymers used for manufacturing products requiring elasticity, such as phone cases, tubing, and toys. These materials can stretch and bend without breaking or cracking.
LDPE - Low Density Polyethylene
LDPE, THE OLDEST MEMBER OF THE POLYETHYLENE FAMILY OF RESINS, WAS first commercially PRODUCED as a wire WRAPPER in the early 1940S. LDPE integrated some good properties: transparent, chemical, sealing ability is good, easy to form processing.
Advantages
- It has good softness, extensibility, electrical insulation and transparency.
- Easy workability and constant air permeability.
- Its chemical stability is good, and alkali resistance, and resistance to general organic solvents.
- Easy to burn.
Low-temperature resistance.
Disadvantages
- Poor mechanical strength, transparency and aging resistance
- Heat resistance and resistance to light aging is poor, easy to aging decomposition and discoloration in sunlight or high temperature.
PVC - Polyvinylchloride
Polyvinyl chloride (PVC) is an economical, versatile material that can be used in construction and construction, medical, electronics, automotive and other fields. Products include pipes and paints, blood bags, pipes, wires, cable insulation, windshield components, etc.
Advantages
- Polysulfone has high hardness and impact strength, non-toxic, good heat and cold resistance to aging.
- It is mainly to improve its impact strength and elongation, solvent resistance, environmental resistance, machining performance and electroplating.
- It has good moisture resistance and wear resistance.
- Rugged, reliable and light.
Disadvantages
- The cost is higher.
- Thermal stability is not good, hard and embrittlement at low temperatures, but easy to soften and relax at high temperatures.
- High temperatures release dioxin acid gas.
- Poor machining performance.
TPR - Thermo Plastic Rubber
TPR material is based on thermoplastic styrene butadiene rubber (such as SBS,SEBS) as the basic raw material, adding resin (such as PP,PS), fillers, plasticizing oil agent and other functional additives blend modified materials.It is a type of rubber elastic without vulcanization. Can be directly processed into molding (such as injection molding, extrusion, blow molding, etc.) thermoplastic soft adhesive material.
Advantages
- Weather resistance and aging resistance are general.
- Rubber resilience and good wear resistance, skid resistance, and shock absorption performance are excellent.
Disadvantages
- Not resistant to high temperature.
TPU - THERMOPLASTIC POLYURETHANE ELASTOMER
TPU name is thermoplastic polyurethane elastomer rubber. It has a wide hardness range (60HA-85HD), abrasion resistance, oil resistance, transparency, and good elasticity, and is widely used in daily necessities, sporting goods, toys, decorative materials, and other fields. TPU not only has excellent high tension, high tension, toughness, and aging resistance characteristics but also is a mature environmental protection material.
Advantages
- Good elasticity and wear resistance.
- The bearing capacity, impact resistance and shock absorption performance are outstanding.
- Outstanding cold resistance.
- Good machining performance.
- Low-temperature performance.
- High temperature and oxidation resistance.
Disadvantages
- Not resistant to strong polar solvents and strong acid-base media, easy to deformation and yellowing.
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FAQ
What is injection molding plastic?
Injection molding plastic refers to the process of injecting molten plastic into a mold cavity, allowing it to cool and solidify into the desired shape. This method is widely used for mass production of plastic parts with high precision and complexity.
How to choose injection molding material?
Choosing the right injection molding material depends on various factors, including the part’s design, intended application, mechanical properties, environmental conditions, and cost considerations. It is crucial to consider factors like strength, durability, temperature resistance, chemical resistance, and aesthetics when selecting the material.
What is the cheapest plastic for injection molding?
Polypropylene (PP) is generally considered one of the most cost-effective plastics for injection molding. It offers a good balance of properties, including excellent chemical resistance, low density, and high impact strength. PP is widely used in various industries due to its affordability and versatility.
What is the best transparent plastic for injection molding?
Polycarbonate (PC) and Acrylic (PMMA) are two popular choices for transparent plastic in injection molding. Polycarbonate offers high impact resistance and excellent optical clarity, making it suitable for applications requiring shatterproof properties. Acrylic, on the other hand, provides exceptional transparency, UV resistance, and scratch resistance.
What is the easiest plastic for injection molding?
Polypropylene (PP) is generally considered one of the easiest plastics to work with in injection molding. It has a low melt viscosity, which allows it to flow easily through the injection molding machine and fill complex molds with thin walls or intricate details.
What is the most widely produced plastic?
Polyethylene (PE) is the most widely produced plastic globally. It is a versatile thermoplastic polymer that can be produced in various forms, including high-density polyethylene (HDPE) and low-density polyethylene (LDPE). PE finds extensive use in packaging, construction, automotive, and numerous other applications due to its excellent chemical resistance, low moisture absorption, and ease of processing.
Why are plastic raw materials cheap in China?
Large-scale production: China has a vast manufacturing base and produces a significant volume of plastic raw materials, allowing for economies of scale and lower production costs.
Access to resources: China has access to abundant natural resources required for plastic production, such as crude oil and natural gas, which helps in reducing material costs.
Labor costs: Labor costs in China are generally lower compared to many other countries, which can contribute to lower overall production costs.
Manufacturing infrastructure: China has a well-developed manufacturing infrastructure and supply chain, enabling efficient production and distribution of plastic materials.
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