Overall, pvc pipes, PVC pipes, although the share of the reduction, but still occupy the dominant position in the plastic pipe market. And attractive prospect plastic pipe industry is still driven by the development of a major bright spot PVC pipe industry. According to the "2011-2016 China chemical pipelines market analysis and investment strategy research report" shows: the current domestic PVC pipe processing capacity of SMEs mainly in PVC drain. Housing construction and public works, "Twelve Five" period still provide a stable domestic demand will drive growth in market demand for PVC drain. The next period of time, PVC pipe construction market demand will still be demand-driven and continuous growth, especially in the protection of the arrival of a large number of housing construction completion. But it is worth noting that PVC pipeline companies also product structure adjustment should be combined with the actual situation, environmental protection and quality as the core focus on developing products to meet market demand for building materials, professional pvc pipe, so as to establish the position in the plastic pipe market . PVC may be ethylene, chlorine and the catalyst is made by a substitution reaction. Because of its role in fire resistant, PVC is widely used in all kinds of industries: Cable sheath, fiber jacket, shoes, handbags, bags, accessories, signs and billboards, building and decorating supplies, furniture, ornaments , rollers, pipes, toys (such as the famous Italian "Rody" jumping horse), curtain, rolling door, auxiliary medical supplies, gloves, plastic wrap certain foods, such as certain fashion. PVC resin is a polar non-crystalline polymers, density: 1.380 g / cm, glass transition temperature: 87 ℃, so the poor thermal stability pvc pipe manufacturers, easy processing. Can not be used directly, must be modified mixed, add the relevant additives and fillers can be used. And because of different additives and added to the relevant type and filler fraction, which determines the material properties and the requirements of PVC prepared is not the same. We usually call it PVC formulations, strictly speaking is modified PVC formulations hardware pvc pipe, but only after modification to use PVC. This category is often classified as a polymer modified materials. Studies of polymer materials modified plastics primarily focus on high performance general-purpose, single-component materials to the multi-component composite material change (alloys, blends, composites), giving the material functions, optimization of performance and price and so on. Modified method is mainly chemical modification, filling modification, enhancement modification, blending modification and nano-composite modified. The basic principle is modified by providing material additives function or enhance certain properties. Therefore, compete with PVC formulation technology, determines a plant technology and production capacity to compete. Sales pvc pipe, sea Widex (certified), pvc pipe 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.