pvc irrigation pipe | Xiong Wang Thai (certified) | Chaoyang irrigation pipe provided by Xiong Wang Thai Plastic Products Factory. Xiong Wang Thai Plastic Products Factory (www.wangtai668.com) is specialized in the "plastic tube, MPP power tube, CPVC pipe electricity, irrigation pipes, HDPE pipes, p" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Fengjing Li. High-density polyethylene, the English name for the "High Density Polyethylene" irrigation pipe specifications, referred to as "HDPE". HDPE is a high crystallinity, non-polar thermoplastic resin. Original state of HDPE milky white appearance in thin cross-section was a certain degree of translucent. PE has excellent resistance to most of the characteristics of living and industrial chemicals. Certain types of chemicals will produce chemical corrosion irrigation pipe quotations, such as corrosive oxidizer (nitric acid), aromatics (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good water vapor resistance, can be used for packaging purposes. HDPE has good electrical properties, especially high insulation dielectric strength, making it suitable for wire and cable. Medium to high molecular weight grades with excellent impact resistance, at ordinary temperature even at -40F temperatures are so low. HDPE is a thermoplastic polyolefin produced by copolymerization of ethylene. While HDPE been launched in 1956, but has not reached the level of maturity of such plastics. This versatile material continues to develop its new uses and markets. Xiong Wong Tai high molecular weight plastic products factory result in higher polymer viscosity, but the viscosity and temperature and shear rate used for testing related. Rheological measurements on the molecular weight or molecular weight materials were characterized. HDPE grade molecular weight range generally have from 40 000 to 300 000, weight average molecular weight generally corresponds to a melt index range, i.e. from 100 to 0. 029 / 10min. Typically irrigation pipe manufacturers, higher MW (lower melt index MI) enhanced melt strength, better toughness and ESCR, but higher MW or make it more difficult and the process requires a higher pressure or temperature. The molecular weight distribution (MWD): PE WD of catalysts and processes based on the use of rather different from narrow to wide. The most commonly used measure MWD index irregularity index (HI), which is equal to weight average molecular weight (MW) divided by number average molecular weight (Mn). The index range is 4-30 all HDPE grades. Narrow MWD provides low warpage during molding and high impact resistance. In the most broad MWD provides workability during extrusion. Broad MWD can also improve the melt strength and creep resistance. Xiong Wang Thai Plastic Products Factory