| Feature: | PE |
|---|---|
| CAS No.: | 9003-07-0 |
| Formula: | C22h42o3 |
|
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PVC has a wide range of applications, from building materials to automobile manufacturing, children's toys, from industrial and agricultural products to daily necessities, covering all walks of life and all aspects.
1. It can be used as insulation material for electrical appliances, such as the insulation layer of wires. It has almost completely replaced rubber at present. It can be used as heat-resistant wires for electrical appliances, bushings for wires and cables, etc.
2. Used in automobiles, it can be used as steering wheels, roof panels, cushions, etc. used in construction, it can be used as various profiles, such as tubes, rods, special profiles, door and window frames, interior decoration materials, sewer pipes, etc. Chemicalbook ; Used as chemical equipment, it can be processed into various chemical-resistant pipes, containers and anti-corrosion materials.
3. Soft polyvinyl chloride can also be made into various pipes, films, sheets and other products that are tough and resistant to flexing, and can be used to make packaging materials, rain gear, agricultural films, etc.
4. Polyvinyl chloride paste can be applied to cotton cloth and paper. When heated at 140-145°C, it will quickly gel and form into a film, which is then pressed by a roller to form artificial leather, which can be made into various products. PVC foam is also commonly used as padding, slippers, and heat and sound insulation materials.
|
TYPE
|
SG3
|
SG4
|
SG5
|
SG6
|
SG7
|
SG8
|
|
K value
|
72-71
|
70-69
|
68-66
|
65-63
|
62-60
|
59-55
|
|
Viscosity, ml/g
|
135-127
|
126-119
|
118-107
|
106-96
|
95-87
|
86-73
|
|
Average polymerization
|
1350-1250
|
1250-1150
|
1100-1000
|
950-850
|
950-850
|
750-650
|
|
Number of impurity particle max
|
30
|
30
|
30
|
30
|
40
|
40
|
|
Volatiles content % max
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
|
Appearing density g/ml min
|
0.42
|
0.42
|
0.42
|
0.45
|
0.45
|
0.45
|
|
Residual after sieve 0.25mm mesh max
|
2
|
2
|
2
|
2
|
2
|
2
|
|
0.063mm min
|
90
|
90
|
90
|
90
|
90
|
90
|
|
Number of grain/400cm2 max
|
40
|
40
|
40
|
40
|
40
|
40
|
|
Plasticizer absorbency value of 100g resin
|
25
|
22
|
19
|
16
|
14
|
14
|
|
Whiteness % min
|
74
|
74
|
74
|
74
|
70
|
70
|
|
Residual chlorethylenecontent mg/kg max
|
5
|
5
|
5
|
5
|
5
|
5
|
|
Ethvlidene chloride ma/ka max
|
150
|
150
|
150
|
150
|
150
|
150
|
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