PVC Will Pay More Attention To Environmental Protection With Artificial Leather Additives.

At the PVC Seminar on environmental additives in Suzhou, experts and representatives from plastic additives industry discussed the development direction of PVC in China.

Experts believe that PVC additives will be more environmentally friendly.

In view of the development direction of PVC thermal stabilizer, experts believe that China should develop calcium zinc compound stabilizer in the future.

Organotin heat stabilizer, rare earth heat stabilizer and organic heat stabilizer were supplemented, and the performance and application scope of different types of heat stabilizers were compared and analyzed.

The compound lead salt stabilizer should further improve the thermal stability to reduce the unit consumption in the resin: the two tin butyltin in the organotin heat stabilizer is highly toxic, and is not suitable for use as a plastic heat stabilizer. Mercaptannic organotin is not suitable for the use of wires and cable products because of its poor copper resistance, but it is no problem for the products without contact with copper. Lead salt heat stabilizers are being banned or restricted in most industrialized countries.

China is currently restricted to areas such as food, toys and water mains, but it is estimated that more stringent and clearer prohibition statutes will be issued soon.

Shenzhen Zhi Hai Industrial Co., Ltd. introduces the composition and action mechanism of several calcium zinc compound stabilizers.

And its application in cable and artificial leather industry.

Several application units indicated that the product quality was stable and the thermal stability was good.

At present, the company is devotes itself to the application test in the field of pipes and profiles.

About the European Union's prohibition of the use of four plasticizers in children's toys at present, the two doctoral candidates of Jiangnan University and LG chemistry introduced several kinds of non-toxic environment-friendly plasticizers such as epoxy ester high molecular weight plasticizers, citric acid three butyl ester and triglyceride. They believed that they could replace ortho phthalic acid two ethylhexyl ester (DOP or DEHP) and DOA adipate (DEHA), no matter whether the synthetic process and source of raw materials were not a problem, but there were still some differences in price, but the price would be greatly reduced after large-scale production.

About the flame retardant, in October 15th, the European Union issued a resolution to formally add the list of the list of the exemption list of the directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RolS).

At present, there is a misunderstanding in the use of flame retardants. It is considered that all heavy metals are prohibited.

Experts point out that inorganic metal salts and metal oxides are all materials that should be advocated.

However, at present, our country is still lagging behind in the field of inorganic flame retardants, such as ultrafine, Nanocrystallization and microencapsulation. Therefore, the excessive use of flame retardants causes the mechanical properties of products to decline, which is a problem that we should study hard at home.