PS: What is plastic? What is the difference between plastic AS and PS

PS (polystyrene plastics) refers to a class of plastics that include styrene groups in the macromolecular chain, including styrene and its copolymers, including ordinary polystyrene (GPPS), high-impact polystyrene (HIPS), expandable polystyrene (EPS) and metallocene polystyrene (SPS).

PS is widely used in the optical industry, because it has good light transmittance, can be used to manufacture optical glass and optical instruments, but also to make transparent or bright colors, such as lampshades, lighting appliances, etc. PS can also produce many electrical components and instruments that operate in high-frequency environments. Since PS plastic is a difficult inert surface material, lamination in the industry requires the use of professional PS glue bonding.

PS products are applied alone, brittleness, and adding a small amount of other substances to PS, such as butadiene, can significantly reduce brittleness, improve impact toughness, this plastic is called impact-resistant PS, its mechanical properties are greatly improved, and many mechanical parts and components with excellent performance can be made from this plastic.

P.S. This plastic is polystyrene.

It refers to a polymer synthesized from styrene monomer by free radical polyaddition, and is a colorless and transparent thermoplastic. It has a glass transition temperature of more than 100 °C, so it is often used to make a variety of disposable containers that need to withstand the temperature of boiling water, as well as disposable foam lunch boxes.

Ordinary polystyrene resin is an amorphous polymer, the side group of the polystyrene macromolecular chain is the benzene ring, and the random arrangement of the large volume side group is the benzene ring determines the physical and chemical properties of polystyrene, such as high transparency, high stiffness, high glass transition temperature, brittleness, etc. Expandable polystyrene is made of a physical foaming agent impregnated with low boiling point in ordinary polystyrene, which is heated and foamed during processing, and is specially used to make foam products. High-impact polystyrene is a copolymer of styrene and butadiene, and butadiene is the dispersed phase, which improves the impact strength of the material, but the product is opaque.

Conventional polystyrene is the same structure, produced by metallocene catalyst, and the new variety of polystyrene developed has good performance and belongs to engineering plastics.

Summary. First, the reference is different.

1. Plastic PS: refers to a class of plastics that include styrene groups in the macromolecular chain, including styrene and its copolymers.

2. Plastic AS:A polymer compound formed by copolymerization of acrylonitrile and styrene.

Second, the characteristics are different.

1. Plastic PS: soluble in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, etc., but can only swell in acetone. It can resist the effects of certain mineral oils, organic acids, alkalis, salts, lower alcohols and their aqueous solutions.

It has low water absorption and can still maintain its mechanical properties and dimensional stability in humid environments. The optical properties are second only to acrylic resins.

2. Plastic AS: 15%-50% styrene. Transparent solid with yellow to amber needle color.

Density. Thermoplastic. Not easy to change color.

Unaffected by dilute acids, dilute alkalis, dilute alcohols and gasoline. However, it is soluble in acetone, ethyl acetate, dichloroethylene, etc. It can be used as an engineering plastic.

It has excellent heat and solvent resistance.

What is the difference between plastic AS and PS.

Hello, I'll be there in a minute.

Hello, the differences are as follows.

1. Refers to different hunger 1. Plastic PS: refers to a class of plastics that include styrene groups in the macromolecular chain, including styrene and its copolymers. 2. Plastic AS:

A polymer compound formed by copolymerization of acrylonitrile and styrene. 2. Different characteristics 1. Plastic PS: It can be known that Hui is soluble in aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic ketones and esters, etc., but can only swell in acetone.

It can resist the effects of certain mineral oils, organic acids, alkalis, salts, lower alcohols and their aqueous solutions. It has low water absorption and can still maintain its mechanical properties and dimensional stability in humid environments. The optical properties are second only to acrylic resins.

2. Plastic AS: 15%-50% styrene. Transparent solid with yellow to amber needle color.

Density. Thermoplastic. Not easy to change color.

Unaffected by dilute acids, dilute acids, dilute alcohols and gasoline. However, it is soluble in acetone, ethyl acetate, dichloroethylene, etc. It can be used as an engineering plastic.

It has excellent heat and solvent resistance.

1. The nature of 2113 is different.

1. PS plastics: a class of plastics including benzene 4102 ethylene 1653 in macromolecular chain 5261, including styrene and its copolymers, including ordinary polystyrene (GPPS), high-impact polystyrene (HIPS), expandable polystyrene (EPS) and metallocene polystyrene (SPS), etc.

2. ABS plastic: ternary copolymer of acrylonitrile (A), butadiene (B) and styrene (S), the relative content of the three monomers can be arbitrarily changed to make various resins.

Second, the characteristics are different.

1. PS plastic:

1) Mechanical properties: high strength, fatigue resistance, dimensional stability, low creep (small change at high temperature).

2) Heat aging resistance: The strengthened UL temperature index is 120-140C (long-term outdoor aging is also good).

3) Solvent resistance: no stress cracking.

4) Water stability: easy to decompose in case of water (attention should be paid when used in high temperature and humid environments).

2. ABS plastic:

1) Good comprehensive performance, high impact strength, good chemical stability and good electrical properties;

2) Good fusion with 372 plexiglass, can be made into two-color plastic parts, and can be chrome-plated and painted;

3) There are high impact resistance, high heat resistance, flame retardant, reinforced, transparent and other grades;

4) The fluidity is a little worse than HIPS, better than PMMA, PC, etc., and the flexibility is good;

5) It is suitable for the manufacture of general mechanical parts, wear-resistant parts, transmission parts and communication parts.

Extended information: PS plastic is widely used in the optical industry, it can make optical glass and optical instruments. It can also make transparent or bright colors, such as lampshades, lighting fixtures, etc.

PS can also enable many electrical components and instruments to operate in high-frequency environments. Since the inert material on the surface of PS plastic is difficult to inertize, professional PS adhesive bonding is required in the industry.

The use of PS alone for products with high brittleness, such as butadiene, can significantly reduce brittleness and improve impact toughness. This plastic is known as impact-resistant polystyrene, and its mechanical properties are greatly improved. It can be used to produce many mechanical parts with excellent performance.

Generally, there will be a triangle with an arrow at the bottom of the plastic cup (bottle).

1. "5" - PP (polypropylene).

The pp plastic water cup is made of polypropylene, which has good thermal stability and insulation, is safe and harmless to the human body. The product can be sterilized at a temperature of more than 100 meters, and under the condition of not being affected by external force, 150 meters will not be deformed, and there is no pressure in boiling water.

2. "6" - PS (polystyrene).

The plastic cup made of PS material is particularly brittle, low temperature resistance, and cannot be used in high temperature, strong acid, and strong alkali environment.

How to choose a safe plastic water bottle for your child? The Provincial Consumer Association issued a consumption reminder to choose PP material as much as possible. When purchasing, check the label on the bottom of the cup to see the material.

Polypropylene is a relatively safe material, and the bottom of the cup is marked with the number 5. In addition to PP material, it is not recommended to use microwave ovens to heat and disinfect children's plastic drinking cups made of other materials to avoid the release of harmful substances to the human body. Parents should also pay attention to what material the cup lid and straw are made of and use them carefully.

PS, also known as polystyrene, was born in 1930 and is a thermoplastic.

Transparent when uncolored. The product falls to the ground or is beaten, there is a metal-like crisp sound, the luster and transparency are very good, similar to glass, brittle and easy to break, and traces can be scratched on the surface of the product with fingernails. Modified polystyrene is opaque.

Common products: stationery, cups, food containers, home appliance shells, electrical accessories, etc. PC is the abbreviation of polycarbonate, PC sheet is particularly suitable for making spectacle lenses, and the introduction of silicon groups in the PC molecular chain can improve its hardness and scratch resistance. As a high refractive index plastic, PC is used to make the core material of high-temperature resistant optical fibers, and if the C—H chain in the PC molecular chain is replaced by the C—F chain, the absorption of visible light can be reduced, and the signal loss during transmission can be effectively reduced. In addition, PC has good light transmittance, and it is very common and potential to be used in transparent window materials, curtain walls of high-rise buildings, transparent building materials for airports and stadiums, etc., and the focus is on improving surface hardness and antistatic properties in the future.

PS plastic and PC plastic are both highly transparent plastics, PS plastic surface hardness and stiffness are large, but impact resistance, wear resistance, and engraving resistance are relatively poor, while PC plastic not only has good hardness and stiffness, but also has good toughness, impact resistance, wear resistance, and engraving resistance are better than PS. The thermal properties of PC are excellent, and the product can be used for a long time at 60 125 with a embrittlement temperature of 100. PS has poor heat resistance and can only be used at 60 75 with a embrittlement temperature of 30.

PS is a polystyrene plastic, which refers to a class of plastics that include styrene groups in the macromolecular chain, including styrene and its copolymers, and the specific varieties include ordinary polystyrene, high-impact polystyrene, expandable polystyrene and metallocene polystyrene.

Polystyrene is a thermoplastic resin that is a shiny, transparent beaded or granular solid. Density, transparency 88% 92%, refractive index. Under stress, birefringence is generated, the so-called stress-optical effect.