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What is PC plastic?

2023-12-23 11:18

1. polystyrene (PS)

1. Properties: amorphous polymer, shrinkage rate less than 0.6 after molding; Low density makes the output 20% to 30% higher than that of ordinary materials

2, advantages: low cost, transparent can be dyed, size stability characteristics, high rigidity

3. Disadvantages: high fragmentation, poor solvent resistance, poor temperature resistance

4, use: stationery, toys, electrical supplies shell, Styrofoam tableware

2. Polycarbonate (PC)

1. Nature: non-crystalline thermoplastic

2. Advantages: high strength and elastic coefficient, high impact strength, wide operating temperature range, high transparency and free dyeing, high H.D.T., good fatigue resistance, good weather resistance, excellent electrical properties, tasteless and odorless harmless to human body, in line with health and safety, low forming shrinkage and good dimensional stability

3. Disadvantages: poor design of formed products is easy to produce internal stress problems

4. Purpose: ① Electronic appliances: CD, switch, home appliance shell, signal tube, telephone

② Automobile: bumper, distributor, safety glass

③ Industrial parts: camera body, machine shell, safety helmet, diving goggles, safety lens

3. other circumstances

1. The transmittance of PS is 92%, while the transparency of PC is 88%.

2. The toughness of PC is many times better than that of PS. PS is brittle and can be easily broken. The toughness of PC is much higher;

3. The thermal deformation temperature of PC reaches 120 degrees, while PS is only about 85 degrees.

4. Liquidity is also much worse. The fluidity of PS is much better than that of PC. PS can choose point gates. PC basically needs to be molded with large gates.

5. The price difference between the two is also much lower. Now the average PC costs more than 20 yuan and PS is only 11 yuan.

PS plastic refers to a class of plastics including styrene in the macromolecular chain, including styrene and its copolymers, which are soluble in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, but can only swell in acetone.

Additive function of PVC plastic granules

Daily Application of Modified PVC Plastic Granules

Additive function of PVC plastic granules

Daily Application of Modified PVC Plastic Granules

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What is the role and use of plastic PPA?

1. The role of plastic PPA Plastic PPA, as a high-performance engineering plastic, has the following functions:

2023/12/23

Additive function of PVC plastic granules

The additives used in the production of modified PVC plastics mainly include thermal stability system, impact modifier, lubrication system, processing modifier, filler and so on. Among them, the choice of thermal stabilization system should be based on the requirements of actual production, and more attention should be paid to the synergistic effect and confrontation effect between thermal stabilizers. Impact modifiers generally choose CPE and ACR impact modifiers, according to other ingredients in the production formula and extruder plasticizing capacity, appropriate addition of 8-12 copies can be, of which CPE sources are extensive, low price, ACR welding angle strength and aging resistance is higher.