Characteristics and uses of commonly used materials

Posted on September 21, 2019

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Characteristics and uses of commonly used materials
Material Material characteristics, use
ABS It has certain toughness, surface gloss, superior processability, appearance characteristics, low creep and excellent dimensional stability and high impact strength. There are more than one hundred different grades, and there are different changes in performance depending on the material grade. Engineering plastics are widely used.
ABS flame retardant It has flame retardant properties, its properties are weakened after modification, and its fluidity is increased, it is easy to decompose, and it is easy to carbonize. It is mostly used in the outer casing of electrical products.
ABS+glass fiber Glass fiber reinforced materials, the strength and toughness of the material are cured and increased, the fluidity is weakened, and the internal stress is increased, which is used for the formation of anti-wear and corrosion-resistant products.
ABS+AS Mixed materials, neutralizing the advantages of both complement each other. The toughness and hardness are correspondingly combined, and the fluidity is increased. It is mostly used for the formation of toys and electrical appliances.
ABS+PC Alloy materials (also according to the need of self-matching), the PC's toughness, strength, bending resistance performance, while improving the fluidity and surface gloss of the material through ABS, mostly used in mobile phone casing, mobile phone power "target=_blank> machine Batteries, electrical enclosures, electrical parts, auto parts, etc.
PA6 It has certain toughness, good fluidity of materials, good impact strength, strong corrosion resistance, good mechanical strength and wear resistance, and is also used to manufacture bearings. The material has strong water absorption and must be kept dry and reduce the contact surface with air. At the initial stage of mold development, attention must be paid to the parting surface and the exhaust groove of the slider.
PA6+ glass fiber Glass fiber reinforced materials, the toughness of the material is consolidated, the fluidity is reduced, but the surface glass fiber will be obvious, easy to decompose at high temperature, used for the formation of internal wear parts.
PA12 Widely used in water meters and other commercial equipment, cable sleeves, mechanical cams, sliding mechanisms and bearings. It has certain toughness, good fluidity of materials, good impact strength and corrosion resistance, and it is easy to decompose under high temperature.
PA12+ glass fiber Glass fiber reinforced materials, the toughness of the material is consolidated, fluidity is reduced, but the surface glass fiber will be obvious, easy to decompose at high temperatures.
PA66 It is more widely used in the automotive industry, instrument housings, and other products that require impact resistance and high strength requirements compared to PA6. The toughness is strengthened, the fluidity is slightly reduced, the impact strength is good, the corrosion resistance is strong, and the cold resistance is strong.
PA66+ glass fiber Glass fiber reinforced materials, the toughness and impact strength of the material are consolidated, and the fluidity is reduced, but the surface glass fiber will be obvious, and it will be easily decomposed at high temperature.
PBT Widely used in household appliances, electrical components, automotive industry, etc. It has certain toughness, hardness, good fluidity, good flame retardancy, high mechanical strength, excellent chemical resistance and easy deformation. It is called the fifth largest engineering plastic in the later stage.
PBT+glass fiber Glass fiber reinforced materials are optimized for toughness, mechanical strength, and chemical resistance, with reduced fluidity and reduced deformation.
PC Widely used in electrical and commercial equipment, appliances, transportation and so on. It has strong toughness, high hardness, weak light transmission and poor fluidity. It is widely used because of its good performance. It is commonly known as bulletproof rubber, a kind of engineering plastic, and transparent material is also used for mirror body forming.
PC+glass fiber Its toughness and hardness are fully utilized, and it has strong corrosion resistance, which can replace most metal parts in practical applications.
PC+PBT Used in gearboxes, automotive bumpers, and in applications requiring chemical resistance and corrosion resistance, thermal stability, impact resistance, and wearing parts and high and low temperature resistant products. The advantages and disadvantages of the two are neutralized, and the toughness and hardness of the PC, the hardness and mechanical properties of the PBT are exerted.
PE-HD Used in refrigerator containers, storage containers, household kitchen utensils, sealing covers, etc. Density, relative molecular mass, high crystallinity, flexible texture, good chemical stability, low water absorption, higher molecular weight, poorer flow characteristics of the material, but better impact strength.
PE-LD Used for bowls, bins, pipe couplings. The density, relative molecular mass, and crystallinity are low, the texture is soft, the cold resistance is good, the chemical stability is good, and the water absorption is small. It is a semi-crystalline material with a high shrinkage after molding, between 1.5% and -4%, and is also used for blow molding and compression molding.
PEI Used in the automotive industry, electrical and electronic equipment, product packaging, aircraft interior equipment, pharmaceutical industry, etc. It has strong toughness, strength, good mechanical properties, strong corrosion resistance and high insulation. It can replace part of metal forming.
PEI+glass fiber After the glass fiber is reinforced, the toughness, strength and mechanical properties are strengthened. The surface glass fiber deposition needs to be improved by the high mold temperature, and is mostly used for forming the internal functional parts of the electrical appliance.
PET Used in the automotive industry, electrical components, industrial applications, etc. It has certain flexibility, strength and good mechanical properties. It is easy to decompose and carbonize at high temperature, and is often used for the forming of internal parts of electrical appliances and external wearing parts.
PET+glass fiber Glass fiber reinforced materials, which have enhanced flexibility and mechanical properties, are easily decomposed and carbonized at high temperatures, and are often used for forming internal parts of electrical appliances and external wearing parts.
PMMA It has strong hardness and strong light transmission. The penetration of white light is as high as 92%. It is the best light transmission among all transparent materials. It is commonly known as acrylic and plexiglass. It is widely used for mirror and optical disc forming. Because the hardness is high, the screw wear is large, and the special screw is used as much as possible during the forming.
POM It has a very low coefficient of friction and good geometric stability, making it ideal for gears and bearings. It is also used in pipe fittings, lawn equipment, etc. because of its high temperature resistance. It is easy to decompose at high temperatures, because the hardness is high.
POM+glass fiber Glass fiber reinforced materials, the advantages of materials are cured and increased, fluidity is reduced, easy to decompose, easy to carbonize, can replace part of metal forming.
PP It has strong flexibility, good viscosity, good fluidity and high stability. Because it does not degrade at high temperature, unmodified PP is used for screw cleaning, commonly known as 100% plastic.
PP+glass fiber The viscosity, fluidity and stability of the modified material are reduced, the toughness is enhanced, and the degradation is not caused at a high temperature for a long time.
PPE Used in household goods, electrical equipment, etc. It has certain toughness, strength and good mechanical properties, and it is not easy to decompose under high temperature. The mixed material blended with PA 66 has stronger chemical stability at high temperatures, and the material has low hygroscopicity and excellent geometric stability of the product. The material in which PS is mixed is amorphous, and the material in which PA is mixed is crystalline. The addition of a glass fiber additive can reduce the shrinkage to 0.2%.
PPO Wide temperature range, excellent water and steam resistance, excellent dimensional stability, excellent electrical insulation, poor fluidity, and tendency to stress cracking.
PS Used in product packaging, household goods, toys, electrical equipment, etc., divided into GPPS and HIPS. The material performance is reflected in the two limits of flexibility and hardness. It is the most widely used civilian plastic. The ratio of GPPS modified SAN can be used to replace PMMA.
PS+ flame retardant After the flame retardant performance is increased, the material properties change, which is easy to decompose, easy to carbonize, and corrosive, and is mostly used in the outer casing of electrical products.
PVC Used in water supply pipes, household pipes, house wall panels, commercial machine casings, electronic product packaging, medical equipment, food packaging, etc. The material has non-flammability, high strength, weather resistance and excellent geometric stability, good fluidity and flexibility. Depending on the density, the difference is from 0 to 100 degrees. The higher the density, the higher the hardness.
AS Used in electrical, household goods, automotive industry, household goods, cosmetics packaging, etc. Transparency is second only to PMMA, higher than PC, ABS, GPPS. Compared with PMMA, the hardness is reduced, the fluidity is increased, and the wear of the screw is reduced. The user is mostly used to replace the PMMA material.
AS+ glass fiber The addition of glass fiber additives can increase strength and resistance to thermal deformation, reduce thermal expansion coefficient, and certain toughness. Later material suppliers synthesize new materials, ASA, which possess the properties of this material and increase flame retardancy.
PPS Good chemical resistance, special rigidity, poor toughness, low impact strength, unstable colloid after melting, and used for the formation of internal functional parts.
PEEK It has the advantages of high temperature resistance, corrosion resistance, wear resistance, high strength and low noise, because its excellent mechanical properties can replace metal and is used for wear-resistant gear shaping.
PPA It has excellent high temperature resistance, corrosion resistance and wear resistance, good mechanical and shrinkage properties, and resistance to decomposition at high temperatures, which can replace some metal fittings.
rubber It has strong flexibility and elasticity. There are few products for single injection molding. There are different model choices according to production needs, and most of them are used for blow molding and compression molding.

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