How to distinguish between cross-linked PPS and linear PPS, and what are their differences?

PPS can be divided into two major categories. One is PPSbased on cross-linked polymers, which undergoes heat treatment in the presence of air. The polymer forms a cross-linked three-dimensional network structure through oxygen as a medium, thus maintaining high rigidity and wear resistance, low creep and stress relaxation characteristics at high temperatures. Additionally, heat-treated cross-linked PPS materials usually exhibit a dark brown color. 

The other is based on linear polymers. Linear PPS is the second generation of PPS products, which is manufactured without heat treatment. Its molecular structure is straight-chain, resulting in relatively low rigidity but good toughness, impact resistance, and tensile strength; slow cooling and curing rates; excellent fluidity, suitable for thin-walled product molding, and high weld seam strength; low ionic impurities, making it suitable for demanding electronic fields and fuel cell components; furthermore, due to its high purity, linear PPS has lower moisture absorption than cross-linked PPS, smaller dimensional changes, and better electrical insulation properties; unheat-treated linear PPS is light yellow with high whiteness and can be dyed.

Shenyang Shuguang Network Industry Co., Ltd. pps mesh quality is stable, and it is widely used in papermaking, environmental protection, chemical printing and dyeing industries, and has won the trust and support of many customers. In the future, we will continue to optimize our customized services so that more customers can buy suitable products. If you are interested in our pps mesh, please feel free to contact us!