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PVC Dispersion Resin Made By Micro-suspension Polymerization
The production method of PVC Dispersion Resin by micro-suspension method is carried out according to the following steps: in the material mixing stage, desalted water, emulsifier solution, stearic acid solution, oil-soluble initiator, buffer and vinyl chloride monomer are sequentially added and mixed. The tank is fully stirred and emulsified with a homogenizing pump. The emulsion is heated and polymerized in the polymerization tank and a terminator is added when the conversion rate reaches 85-90%. The emulsion after recovering the unreacted vinyl chloride monomer is spray-dried. The dried material is used The classifier is separated, and the separated coarse material is pulverized and mixed with the separated fine material to obtain the same high-quality paste resin.
Compared with the prior art, the present invention adopting the above technical solution adds a terminator at the end of the polymerization, which ensures the normal operation of the recovery system and improves the monomer quality obviously.
Property：
PVC paste resin (PVC) is a large category of polyvinyl chloride resins. Compared with suspension resins, it is a highly dispersible powder. The particle size range is generally 0.1～2.0μm (the particle size distribution of suspension resins is generally 20～200μm. ). PVC paste resin was researched at the IG Farben factory in Germany in 1931, and industrial production was realized in 1937.
In the past half-century, the global paste PVC resin industry has developed rapidly. Especially in the past ten years, production capacity and output have shown a leaping growth, especially in Asia. In 2008, the global total production capacity of paste PVC resin was approximately 3.742 million tons per year, and the total production capacity in Asia was approximately 918,000 tons, accounting for 24.5% of the total production capacity. China is the fastest growing region in the paste PVC resin industry, with production capacity accounting for approximately 13.4% of the total global production capacity and approximately 57.6% of the total production capacity in Asia. It is the largest producer in Asia. In 2008, the global output of paste PVC resin was about 3.09 million tons, and China's output was 380,000 tons, accounting for approximately 12.3% of the world's total output. Production capacity and output rank third in the world.
Specification
|
Item Designation |
PSH-10 |
PSH-30 |
PSM-31 |
PSL-31 |
|
|
Resin |
Appearance |
White ultrafine powder |
|||
|
Degree of polymerization |
1580-1780 |
1630-1830 |
1230-1430 |
800-1080 |
|
|
Volatile matter percent ≤ |
0.50 |
||||
|
Bulk density g/cm3 |
0.2-0.45 |
||||
|
Sieve residue mg/kg≤ (0.15mm sieve pore diameter) |
10.0 |
||||
|
Residual vinyl chloride monomer mg/kg≤ |
5.0 |
||||
|
Mixture |
Type B viscosity (30℃) mPa.s Resin: DOP =100:65 |
1000-2500 |
1500-6500 |
1500-6500 |
1500-6500 |
|
Scratch granularity μm≤ |
100 |
||||
Application
PSH-10: non-foaming artificial leather bottom layer, artificial leather and floor leather surface layer, canvas, dip forming products (gloves, shoes, etc.), rotational forming products (bobble heads, toys), slush molding products, scrapers, bottle cap mats and more.
PSH-30: PVC emulsion gloves, artificial leather surface layer and more.
PSM-31:Foamed artificial leather, floor leather, wallpaper, coated cloth, bottle cap pads, conveyor belts, impregnated and rotationally molded products, etc.
PSL-31: foaming wallpaper, floor leather, artificial leather, rotational forming products, etc.
Packaging Details
20kg/kraft bag. Or as your requirement
Delivery Time
Shipped in 7-15 days after payment
If you have any demands for plastic industry ,Such as PVC resin ,Diisononyl Phthalate, Dioctyl Terephthalate，Dioctyl Adipate ,Dioctyl Phthalate,Polyvinyl Alcohol,PVB resin ,PET resin other Plastic Resin ,welcome to inquiry us .
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Main Product:
Titanium Dioxide,
PVC Paste Resin,
Polyvinyl Alcohol,
PVC Resin,
Iron Oxide,
Carbon Black
