Knowledge

Industrial polyvinyl chloride resin is mainly amorphous structure, but also contains some crystalline regions (about 5%), so polyvinyl chloride has no obvious melting point, and begins to soften at ab

It has stable physical and chemical properties, is insoluble in water, alcohol, gasoline, and has low gas and water vapor leakage; at room temperature, it can withstand any concentration of hydrochlor

Polyvinyl chloride has poor stability to light and heat. The softening point is 80°C, and decomposition starts at 130°C. Without heating the stabilizer, polyvinyl chloride begins to decompose at 100°C

PVC has flame retardant (flame retardant value above 40), high chemical resistance (resistant to concentrated hydrochloric acid, 90% sulfuric acid, 60% nitric acid and 20% sodium hydroxide), mechanica

The natural color is light yellow, translucent and shiny. The transparency is better than that of polyethylene and polypropylene, but worse than that of polystyrene. Depending on the dosage of additiv

PVC was once the largest general-purpose plastic in the world, and it is widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artif

The molecular weight of industrially produced PVC is generally in the range of 50,000 to 110,000, with a large polydispersity, and the molecular weight increases with the decrease of the polymerizatio

PVC is a white powder with amorphous structure, the degree of branching is small, the relative density is about 1.4, the glass transition temperature is 77~90 °C, and it begins to decompose at about 1

Polyvinyl chloride, referred to as PVC (Polyvinyl chloride) in English, is an initiator of vinyl chloride monomer (VCM) in peroxides, azo compounds and other initiators; or according to the mechanism

The development of the cable industry is closely related to the development of my country's industrial economy, especially the development of the information industry. With the acceleration of power g

Pipes are mainly used for infrastructure construction. Judging from the current situation of PE pipe enterprises, there are common problems among enterprises in the industry that products are similar,

The improvement of living standards has made people's requirements for the functions and diversification of packaging materials, such as cling film, gas and light blocking film, selective permeation f