Polyvinyl chloride (PVC)
Polyvinyl chloride (PVC) is a popular thermoplastic that's odorless, solid, brittle, and generally white in color. It's currently ranked as the third most widely used plastic in the world (behind polyethylene and polypropylene). PVC is most commonly used in plumbing and drainage applications, although it's also sold in the form of pellets or as resin in its powder form.
Package : 25kg/bag
Introduction
1. PVC resin can be processed into various plastic products. It can be divided into soft and hard products according to its application.
2. It is mainly used to produce transparent sheets, pipe fittings, gold cards, blood transfusion equipment, soft and hard tubes, plates, doors and windows. Profiles, films, electrical insulation materials, cable jackets, blood transfusions, etc.
SG-5 Mainly usually used on PVC profile,PVC pipe,PVC sheet, PVC board.
Specification
Test Items | SG3 | SG5 | SG7 | SG8 |
K value | 71-72 | 66-68 | 60-62 | 55-59 |
Viscosity Number (ml/g) | 127-135 | 107-118 | 87-95 | 73-86 |
Average degree of polymerization | 1251-1370 | 981-1135 | 741-845 | 650-740 |
Number of impurity substance | ≤16 | ≤16 | ≤20 | ≤20 |
Mass fraction of volatiles | ≤0.30 | ≤0.40 | ≤0.40 | ≤0.40 |
Appearance density | ≥0.45 | ≥0.48 | ≥0.50 | ≥0.50 |
Fish eye | ≤20 | ≤20 | ≤30 | ≤30 |
Whiteness(160ºC,10min)% | ≥78 | ≥75 | ≥75 | ≥75 |
VCM residue | ≤5 | ≤5 | ≤5 | ≤5 |
