PVC Resin

PVC resin is a polymer compound formed by polymerization of vinyl chloride monomer (VCM), and its structure unit is [CH2-CHCL]n. polymerization degree is usually 590-1500. According to the content of residual polyethylene monomer in PVC resin can be divided into: industrial grade, food hygiene grade and medical grade. The appearance of PVC resin is white powder.

PVC resin SG3 SG5 SG8 is flame-retardant (flame retardant value above 40), high chemical resistance (resistant to concentrated hydrochloric acid, 90% sulfuric acid, 60% nitric acid and 20% sodium hydroxide), mechanical strength And the advantages of good electrical insulation. But its heat resistance is poor, with a softening point of 80°C, it starts to decompose and change color at 130°C, and precipitate HCI.

 

Application:  It is widely used in the production of polyvinyl chloride boardy leatheroid, paint and adhesive agents, paint and adhesive.

Packing: 25kgs two layers draft paper bag or 1000kgs PP bag.

Item PVC Resin SG3 PVC Resin SG5 PVC Resin SG8
K value 72-71 68-66 59-55
Viscosity Number ml/g 135-127 118-107 86-73
Average Degree of Polymerization 1370-1251 1135-981 740-650
Number of Impurity Particle ≤16 ≤16 ≤20
Volatile Substance ≤0.3 ≤0.4 ≤0.4
Volatile Content ≥0.45 ≥0.48 ≥0.50
Whiteness (160℃,10 Min) % ≥78 ≥75 ≥75