China Suspension process PVC factory and suppliers

Suspension process PVC

short description:

PVC is a kind of amorphous high polymer, whose glassing temperature is 105-75 , while swells or dissolves in ether, ketone and aromatics. ºC to its molecular weight. Comparing with other common plastics, PVC has the characteristics of fire resistance and self-extinguishment, and extremely fine chemical corrosion resistance, electro-insulating property, chemical stability and thermo-plasticity. It’s insoluble in water, alcohol,

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Product Tags

Suspension process PVC,
PVC Resin, PVC Suspension Resin, Suspension PVC,

PVC resin is packed with compound bag of kraft paper and PP woven material, or internally coated PP woven cloth exterior bag with LDPE film-lined interior bag, or in bulk. The seal of packing bag should guarantee the products not to be polluted or leaked during normal transportation and storage. The net content of small package is 25kg per bag, while big package is 1250kg, 1000kg, 600k or 500kg.

(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 .

The suspension process for manufacturing polyvinyl chloride is the most important method for producing a variety of general purpose and highly sophisticated grades of PVC. The process was invented in 1935 and first patented by WACKER CHEMIE GmbH, one of the former parent companies of Vinnolit. Continuous developments had been carried out in recipes, product quality and technology. Base on this long experience and continuous improvements, Vinnolit can offer a modern and highly economical process for the production of S-PVC worldwide.

The polymerization reaction is carried out in batches in stirred reactors of the “high-performance reactor” type, in sizes up to 160 m3 each. The number and size of the reactors depends on capacity and product mix. The unique design of this type of reactor allows very efficient heat removal from the reactor, so high productivity rates can be achieved without using reflux condenser technology or chilled water.

Visually PVC resin is white amorphous powder with particle size of 60-250um and apparent density 0.40-0.60g/ml. Under normal temperature, 100g resin can absorb 14-27g plasticizer.
QILU brand PVC is produced with the patent technology of Japanese Shinetsu Chemical Company Ltd. and American Oxy Vinyls Company with introduced package equipments. 14 grades of products with different performances and uses can be made by applying the process of suspension polymerization and consuming VCM as its feedstock.
The main grades of QILU brand PVC are: S-700, S-800, S-1000, S-1300, QS-650, QS-800F, QS-850F, QS-1000F, QS-1050P, QS-1200 and QS-1350F.