China Zhongtai PVC resin supplier
China Zhongtai PVC resin supplier,
pvc resin for pipe, PVC resin for profile,
Polyvinyl chloride (PVC) is the initiator of peroxides and azo compounds in vinyl chloride monomer (VCM). Or under the action of light and heat according to the mechanism of free radical polymerization polymerization polymer. Vinyl chloride homopolymer and vinyl chloride copolymer are called vinyl chloride resin.
PVC used to be the world’s largest general-purpose plastic and was widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor brick, artificial leather, pipe, wire and cable, packaging film, bottle, foaming material, sealing material, fiber and so on. Its main uses are PVC profile, PVC pipe, PVC film, PVCPVC hard material and plate, PVC general soft products, PVC packaging materials, PVC wallboard and floor, PVC consumer goods, PVC coating products, PVC foam products, PVC transparent sheet, etc.
PVC with excellent mechanical properties, chemical properties such as resistance to acid and alkali corrosion, natural from self-extinguishing fire retardant performance, low heat transfer coefficient, heat preservation sound insulation noise reduction, products of environmental protection, can be fine features, such as physical and chemical modification has become an important material of green home, engineering construction market, into the thousands, as more and more people know and recognized. Currently, zhongtai group as the first, the world’s top three in the domestic PVC production suppliers, has formed the scale of annual output of 2.3 million tons of polyvinyl chloride (PVC) resin, vigorously promote the application of PVC high-performance products in all walks of life, is the country’s green development and supply side to implement and carry out the reform, is also a long-term healthy development of the industry’s responsibility and bear. This paper mainly introduces PVC from five aspects, such as introduction, classification, synthesis process, modification and application.
Specification
GB/T 5761-2006 Standard
|
Item |
SG3 |
SG5 |
SG7 |
SG8 |
|
|
Viscosity, ml/g (K value) Degree of polymerization |
135~127 (72~71) 1350~1250 |
118~107 (68~66) 1100~1000 |
95~87 (62~60) 850~750 |
86~73 (59~55) 750~650 |
|
|
Number of impurity particle≤ |
30 |
30 |
40 |
40 |
|
|
Volatiles content %,≤ |
0.40 |
0.40 |
0.40 |
0.40 |
|
|
Appearing density g/ml ≥ |
0.42 |
0.45 |
0.45 |
0.45 |
|
|
residue after sieve |
0.25mm ≤ |
2.0 |
2.0 |
2.0 |
2.0 |
|
0.063mm ≥ |
90 |
90 |
90 |
90 |
|
|
Number of grain/400cm2≤ |
40 |
40 |
50 |
50 |
|
|
Plasticizer absorbency value of 100g resin g≥ |
25 |
17 |
- |
- |
|
|
Whiteness %,≥ |
75 |
75 |
70 |
70 |
|
|
Water extractant solution conductivity, [us/(cm.g)]≤ |
5 |
- |
- |
- |
|
|
Residual chloride ethylene content mg/kg≤ |
10 |
10 |
10 |
10 |
|
Packaging
(1) Packing : 25kg net/pp bag, or kraft paper bag .
(2) Loading quantity : 680Bags/20′container, 17MT/20′container .
(3) Loading quantity : 1000Bags/40′container, 25MT/40′container .
