Suspension polyvinyl chloride PVC resin body [palyvinyl chloride (bulk polymerization)] China has production, Sichuan Yibin Tianyuan, 内蒙古海吉 two companies, the method of product transparency and insulation than other methods. Solution polymerization of PVC resin used for surface coating on. At low temperature 20 ~ 30 ℃ or below 0 ℃ suspension, emulsion polymerization or bulk polymerization, both said low temperature. High molecular weight low temperature polymerization of PVC, high crystallinity, structural regularity is good, high glass transition temperature, heat resistance, solvent resistance is good. But difficult to process than ordinary PVC injection pvc pipe prices, lower impact strength, used for fiber and specialty plastics. The resulting emulsion PVC production called Emulsion PVC (Emulsion poly-merixation). It is a paste resin, high molecular weight, smaller particles. Emulsion PVC Model RH-xy, where R- emulsion method; H- paste resin; x- absolute viscosity resin ene solution; y- paste viscosity. x points 1,2,3 type, a type of absolute viscosity of 2.01-2.4mPa · s, type 2 absolute viscosity of 1.81 ~ 2.00mPa · s, 3 type absolute viscosity of 1.60 ~ 1.80mPa · s. y points Ⅰ, Ⅱ, Ⅲ number, number Ⅰ paste viscosity of not more than 3,000mPa · s, Ⅱ No. paste viscosity of 3000 ~ 7000mPa · s, Ⅲ number paste viscosity of 7,000 ~ 10 pvc injection pipe supply, 000mPa · s . PVC by adding plasticizers, modifiers, and fillers, so that PVC becomes large difference in specific gravity, hardness vary widely, but also due to the addition of some ingredients, many properties of PVC plastic is changed, so that we used The identification methods ineffective injection pvc pipe fittings, and even the phenomenon of change, can not make accurate judgments. For example: density, plasticized polyvinyl chloride (containing about 40% plasticizer) is 1.19 to 1.35; and rigid PVC products has increased to 1.38 to 1.50. If you are highly filled PVC products, density and sometimes more than two. pvc injection tube Supply | Sea Widex (certified) | pvc injection tube provided by Qingdao Rubber Material Co. Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is Qingdao, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Widex leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea Widex a better future.