English information of polyethylene, English abbreviation of polypropylene

Polypropylene is abbreviated as PP in English

Introduction to polypropylene:

Polypropylene, abbreviated as PP, is a polymer made by polyaddition of propylene. It is a white waxy material with a transparent and light appearance. The chemical formula is (C3H6)N, the density is, flammable, the melting point is 164 170, it softens at about 155, and the service temperature range is -30 140.

It can resist the corrosion of acids, alkalis, salts and a variety of organic solvents below 80, and can decompose under high temperature and oxidation. Polypropylene is a thermoplastic synthetic resin with excellent performance, which is a colorless and translucent thermoplastic lightweight general plastic, with chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties, etc., which are widely used in the production of fiber products such as clothing, blankets, medical equipment, automobiles, bicycles, parts, transportation pipelines, chemical containers, etc., and are also used in food and drug packaging. On October 27, 2017, the list of carcinogens released by the World Health Organization's International Agency for Research on Cancer (IARC) was preliminarily sorted out and polypropylene was included in the list of three types of carcinogens.

China began to study the production process of polypropylene in 1962. Since the 80s of the 20th century, polypropylene has developed rapidly in China. China has introduced some advanced polypropylene production technology and production equipment, and has established a number of large and medium-sized polypropylene production facilities in Yanshan, Yangzi, Liaoyang, etc., and a large number of small bulk polypropylene production facilities have also been built in various places, and have played a certain role in alleviating the contradiction between supply and demand.

The substantial increase in production scale has prompted China's polypropylene resin production to enter a stage of rapid development. In 2012, China's PP production capacity reached 10,000 tons. In 2015, China's PP production capacity was 20.13 million tons per year.

Polypropylene resin is one of the universal thermoplastic resins (polyethylene, polyvinyl chloride, polypropylene, polystyrene), which is produced by polymerization reaction with propylene as raw material and ethylene as comonomer.

The English word for ethylene is: ethylene

Ethylene, with the chemical formula C2H4 and molecular weight, is an organic compound composed of two carbon atoms and four hydrogen atoms. The two pure residual carbon atoms are connected by a carbon-carbon double bond. Ethylene exists in some tissues and organs of plants, and is formed by methionine under the condition of sufficient oxygen supply.

Ethylene is the basic chemical raw material of synthetic fibers, synthetic rubber, synthetic plastics (polyethylene and polyvinyl chloride), synthetic ethanol (denier alcohol), and is also used in the manufacture of vinyl chloride, styrene, ethylene oxide, acetic acid, acetaldehyde and explosives, etc., and can also be used as a ripening agent for fruits and vegetables, and is a proven plant hormone.

Ethylene is one of the largest chemical products in the world, and the ethylene industry is the core of the petrochemical industry, with ethylene products accounting for more than 75% of petrochemical products and occupying an important position in the national economy. The world has taken ethylene production as one of the important indicators to measure the development level of a country's petrochemical industry.

The physiological functions are: triple reaction, promoting fruit ripening, promoting leaf senescence, inducing adventitious roots and root hair genesis, breaking the dormancy of plant seeds and buds, inhibiting the flowering of many plants (but can induce and promote the flowering of pineapple and its congeners), and changing the direction of flower sex differentiation in the early stage of flower development in dioecious plants.

On October 27, 2017, the World Health Organization's International Agency for Research on Cancer (IARC) released a preliminary list of carcinogens, and ethylene was included in the list of three types of carcinogens.

The polystyrene abbreviation is PS.

Polystyrene (abbreviated PS) refers to a polymer synthesized from styrene monomer through free radical polyaddition reaction, with the chemical formula (C8H8)N. It is a colorless and transparent thermoplastic with 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, etc. The list of carcinogens published by the World Health Organization's International Agency for Research on Cancer (IARC) is preliminarily sorted out for reference, and polystyrene is in the list of three types of carcinogens.

The glass transition temperature of polystyrene is 80 105, the amorphous density, the crystal density, the melting bridge temperature is 240, and the resistivity is 1020 1022 cm. Thermal conductivity 30 watts (m·kon). Usually polystyrene is an amorphous random polymer.

It has excellent thermal insulation, insulation and transparency, and the long-term use temperature is 0 70, but it is brittle and easy to crack at low temperature. In addition, there are homogeneous and interidentical and random polystyrene. Homogeneous polymers have high crystallinity, and homogeneous polymers have partial crystallinity.

Ordinary polystyrene resin is an amorphous polymer, the side group of polystyrene macromolecular chain is the benzene ring, and the random arrangement of the large volume side group is the benzene ring, which determines the physical and chemical properties of polystyrene, such as high transparency, high stiffness, high glass transition temperature, brittleness, etc.

Polystyrene (PS) is a colorless and transparent thermoplastic. Styretic polyfoam or styrene is commonly known as styrofoam (also known as polylon, commonly known as styrofoam in Hong Kong).

It has a glass transition temperature of more than 100 degrees Celsius, so it is often used to make a variety of disposable containers that need to withstand the temperature of boiling water hand skin, as well as disposable foam lunch boxes. Expanded polystyrene (EPS) is a lightweight polymer. It is a foam plastic that uses polystyrene resin to add foaming agent and heat it to soften it to produce gas to form a rigid closed-cell structure.

Summary. Hello, polyethylene (PE) is a thermoplastic resin prepared by polymerization of ethylene. In industry, it also includes copolymers of ethylene with a small amount of -olefins.

Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the lowest use temperature can reach -100 -70 °C), good chemical stability, and can resist the erosion of most acids and bases (not resistant to acids with oxidizing properties). It is insoluble in general solvents at room temperature, has low water absorption and excellent electrical insulation.

Hello, polyethylene (PE) is a thermoplastic resin made by polymerization of ethylene. Industrially, it also includes copolymers of ethyl and a small amount of -olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the lowest use temperature can reach -100 -70 °C), good chemical stability, and can resist the erosion of most acids and bases (not resistant to acids with oxidizing properties).

It is insoluble in general solvents at the temperature of Changmingji stove, with low water absorption and excellent electrical insulation.

The chemical formula of polyethylene is (C2H4)N. Polyethylene is the simplest polymer in structure, and it is made up of repeated CH2 units joined together.

Vinyl is a group in organic chemistry and is usually expressed as"vinyl"。It is composed of a double bond and a hydrogen atom and is a pure group that is commonly used in the manufacture of plastics, materials, coatings, glues and other chemicals.

vinyl"The pronunciation is'va nl, phonetically [ va nl]. Among them,"v"is pronounced clean v,"i"The pronunciation is the long vowel i: ,n"The pronunciation of is the clean n,"yl"The pronunciation of l is .

It should be noted that"vinyl"The accent in is on the first syllable, ie"vin"On syllables.

Here are some of the uses"vinyl"to help better understand its usage and pronunciation:

vinyl siding is a popular choice for home exteriors.

Vinyl exterior cladding is a popular choice for home-style calendar facades.

the record is made of vinyl, which gives it a warm sound.

The record is made of vinyl, giving it a warm sound.

vinyl flooring is durable and easy to clean.

Vinyl flooring is durable and easy to clean.

vinyl gloves are commonly used in medical settings.

Vinyl gloves are often used in medical settings.

PVC name: polyvinyl chloride.

English name: polyvinylchloride, PVC definition: repeating unit is a polymer with a random configuration structure. It is a general-purpose synthetic resin. According to the different plasticizers added, it can be divided into two categories: rigid and soft PVC.

Welcome to adopt. Hope it helps.