The recent plunge in the international crude oil market has impacted the chemical market and the mentality of the epoxy resin industry chain, aggravating the bearish sentiment of the industry. The domestic epoxy resin market continued its downward trend, and the trading on the market did not change significantly. The support of the dual raw materials is weak, and the offer of epichlorohydrin has declined significantly. The support of the other raw material, bisphenol A, is weak, and the epoxy resin is in a downward trend as a whole. There are few market purchases and it is difficult to ship.

Inorganic flame retardants for flame retardant tapes: generally refer to inorganic compounds that are added to the formulation of polymers and have flame retardant or smoke suppression effects. The main components are hydroxide (aluminum hydroxide, magnesium hydroxide), red phosphorus, tin series, borate (zinc borate).

The lower the melt index of the plastic resin itself, the more flame retardants are used. The higher the melt index, the less flame retardant is used. In PE plastics, products with a melting index of 0.5-1.0 have the worst flame retardant effect, and the amount of flame retardant is 5-10% more than that of products with a melting index of 4-7.

With the continuous advancement of science and technology, rubber products have been widely used in all walks of life. Wires and cables, rubber ropes, conveyor belts, rubber hoses, air ducts, rubber belts, and rubber products used in the electrical and electronic industries must meet the corresponding national standard requirements in terms of flame retardant properties and mechanical properties.

With the continuous progress of polymer synthesis and processing technology, engineering plastics have penetrated into all fields of people's production and life. In many applications, the flame retardancy of plastics is an important performance index for the application of materials, and some plastic additives, such as halogenated flame retardants, may have potential hazards to the environment and human health, so they are To solve this contradiction, some users of engineering plastics gave up the application of these plastic additives, and turned to those engineering plastics that have flame retardant properties themselves.

PVC cable material is based on polyvinyl chloride resin, adding stabilizers, lubricants and inorganic fillers, etc., and is prepared by mixing, kneading and extruding particles. Although its medium performance is general and not environmentally friendly enough, its price is low and the process is simple; PVC cable material is still one of the most widely used cable materials. When using PVC cable material, there may be pores, rough surface, brittleness, etc.