The development of nature-type flame retardant products. The introduction of the group structure of the supply temperature polyurethane sieve crack in the polyurethane molecule chain, such as aromatic polyester polyol polyurethane slit sieve, using a catalyst so that the molecular chain generates polyisocyanurate ester, polyimide-based, poly oxazolone structure. These are high temperature resistance polyurethane polymer slit sieve plant polyurethane material itself can be improved flame resistance. Compared with the conventional flame-retardant polyurethane, flame retardant nature volatile flame retardant polyurethane does not exist, dissolution, migration issues, high flame retardant efficiency and long lasting. Especially while introducing polymer molecules in such a variety of fire-retardant polyurethane crack sieve element Wanted, a synergistic effect intramolecular flame retardant effect than adding more physical mixing flame produced more Okay. Significant economic benefits. Although the price of urethane rubber screen surface than the metal sieve high, but if considering the screening efficiency, maintenance costs, life and other factors, you will find the overall effectiveness of the polyurethane screen surface to be much better than ordinary metal sieve. According to the survey, with each one ton of polyurethane rubber sieve can save 45 tons of steel. Save maintenance costs 40,000 yuan. Therefore polyurethane screen surface replacement steel screen surface will be the inevitable choice of the vast majority of enterprises in the future. Polyurethane crack sieve | Qinghua plastic (certified) | polyurethane sieve slit by ShangYinXian Engineering Plastics Co., Tsinghua. ShangYinXian Qinghua Plastics Co., Ltd. (www.tyxqhgc.com) is Anyang, other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Tsinghua engineering leadership with the staff warmly welcome all inquiries negotiations to create a better future Tsinghua engineering.