PPS rod imports

Guangzhou Yayan Plastic Products Co., long-term agent Engineering Plastic Products Co., the major foreign material provided Pps (PPS) is a group of engineering thermoplastics containing benzene molecular backbone, is a polyether-based plastics. It was in 1968, industrial production in the United States, mainly on industrial production methods from solution polymerization and polycondensation. pps molecular structure can be seen, it is a linear or slightly branched polymer the benzene ring and sulfur atoms are arranged alternately formed, the molecular chains gauge integrity, a rigid benzene ring and a sulfur flexible [1] ether chain connecting the primary keys have the characteristics of hardness and softness, so pps can be crystallized, high melting point; secondly, due to the benzene ring with the sulfur atom to form a conjugated. And a sulfur atom in a saturated yet, after oxidation of sulfide bond can become sulfoxide, or the adjacent molecules form an oxygen bridge branched or crosslinked, so that the heat and oxygen stability is outstanding; third, because the sulfur polar atoms bound by conjugated benzene rings and high crystallinity, so pps rendered non-polar or weakly polar characteristics, therefore pps electrical insulation resistance, dielectric properties, and chemical resistance are also prominent; s Fourth, since the pps with many polymers and additives have good compatibility, it can be modified using various means to improve the mechanical properties and other performance characteristics of plastic materials pps: commonly used features (1) pps plastic materials pps as a white powder with an average molecular weight of 0.4-0.5 million and a density of 1.3 to 1.8 grams per cubic centimeter, pps has a very deliberate thermal performance. Higher thermal properties of glass fiber reinforced after the index, its maximum continuous use temperature of 400 degrees, excellent thermal stability pps heated to 500 degrees, weight loss is not obvious, will be completely degraded to 700 degrees, it's mechanical properties decrease with increasing temperature rarely, in 232 degree heat after 5000h aging, its flexural strength and tensile strength can keep more than 50%. pps tensile strength, flexural strength and other properties belong to the middle level in the engineering plastics, and elongation and impact strength is very low, so the use of force member pps usual additives such as glass fiber, carbon fiber, fillers, etc. to enhance its mechanical properties, pps after this modification, the main mechanical properties such as tensile properties, flexural, compression and impact strength were greatly improved elongation rate has declined, pps can be modified maintain high mechanical properties and dimensional stability under the effect of long-term and thermal loads, and thus can be used in high temperature stress environment.