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PVA resin industry Situation

PVC resins, physical appearance of white powder, non-toxic, odorless. The relative density of 1.35-1.46 , refractive index 1.544 (20 ℃) ​​insoluble in water, gasoline, alcohol and vinyl chloride , dissolved in acetone , dichloromethane, xylene and the like solvents, high chemical stability , has good plasticity.
1, the chemical stability
 PVC resin has excellent chemical stability, can be acid, alkali and non-polar solvents chemical corrosion. However, some polar solvents, such as cyclohexanone, tetrahydro- furan, etc. are mapped can dissolve PVC, self adhesive preparation
2, thermal stability
Under the action of light and heat, PVC resin is a less stable polymer degradation hydrogen chloride gas. With the increase in the number of hydrogen chloride gas, within the white color of the resin becomes about yellow, yellow, and brown until black. At 140 ℃ , PVC resin begins to decompose , as the temperature increases , accelerated decomposition , 200 ℃ reach full decomposition. Long-term use of PVC products Palace temperature above 55 ℃, after modification of specially formulated products temperature up to 90 ℃, and has flame resistance, self-extinguishing.
3, anti-aging properties
Rigid PVC products resistant to the old performance than soft PVC products better. When the plasticizer evaporates, the soft PVC products will harden crisp, this work in progress by UV irradiation is particularly evident when outdoors;
4, the processing performance
PVC resins are amorphous polymers, at 120-160 ℃ plasticity . Since poor thermal stability. In the kneading. Temperature is not too high. Time not too long. Adding a plasticizer in the resin, heat stabilizers, ultraviolet absorbers, fillers, etc., to meet the product requirements for processing and material properties.
PVA resin industry Situation
Currently, global PVC resin producers are about more than 160, with a total production capacity of 37 million tons. Production capacity of the largest regions in Asia, about 11.16 million tons / year, followed by Europe, the production capacity is 7.6 million tons / year. PVC production capacity is currently the world average annual growth rate of around 4%. Its production of flat look, ethylene production process oil routes accounted for 93%, the rest is calcium carbide production process accounts for about 7%.
From the consumer’s point of view, the current consumption of larger areas of Asia, about 11 million tons / year, followed by Europe, consumption volume of about 9.1 million tons, is immediately followed by the Americas, consumption volume of about 6.7 million tons. The world consumption growth of around 4% , of which the longest in Asia and Africa, the fastest growth in consumption , the growth rate in Asia at about 10% . And in terms of price and profits have been significantly improved, at present, the world PVC resin the overall balance of supply and demand.
At present, in order to adapt to the requirements of new products, new markets and new technology.
Xinyi jia tai chemical co., LTD becomes a professional manufacturer of PVC special resin. Product varieties, quality and quantity are ahead of the same industry in China. The existing products and scale in the company include: 20000 tons of vinyl chloride - vinyl acetate copolymerization resin/year, 20000 tons of high polymerization degree PVC resin 2500 / year, 10000 tons of crosslinked PVC resin suspension method/year, 30000 tons of type 7 (8) resin/year.