Polyvinyl chloride has the outstanding characteristics of abundant raw materials (oil, limestone, coke, salt and natural gas),mature manufacturing process, low price, and wide range of uses. It has become the second largest general-purpose resin in the world after polyethylene resin. 29% of the world's total synthetic resin consumption. Polyvinyl chloride is easy to process and can be processed by molding, laminating, injection molding, extrusion, calendering, blow molding, etc. Polyvinyl chloride is mainly used to produce soft plastic products such as artificial leather, films, and wire sheaths, as well as hard plastic products such as plates, doors and windows, pipes and valves.
Polyvinyl chloride 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.
Product Name | PVC Resin SG3/SG5/SG7/SG8 |
CAS NO | 9002-86-2 |
EINECS NO | 208-750-2 |
MF | [C2H3Cl]n |
Appearance | White powder |
Paste/emulslon PVC Resin for artificial leather | |||
Items | SG3 | SG5 | 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 CONTEN | ≥0.45 | ≥0.48 | ≥0.50 |
Whiteness(160℃,10min)% | ≥78 | ≥75 | ≥75 |
Application
SG-3 is for films, hoses, leathers, wire cables and other general purpose soft products.
SG-5 is for pipes, fittings, panels,calendaring, injection, moulding, profiles and sandals.
SG-7 / SG-8 is for bottles, sheets, calendaring, rigid injection and moulding pipes.