The PP-R material is made by using a random copolymerized polypropylene as a base material and modified. The random copolymer polypropylene uses an advanced gas phase copolymerization process to polymerize PE randomly and uniformly in the molecular chain of PP to obtain more excellent performance. PP-R material is one of the best comprehensive pipe materials.
What is the difference between PP-B, PP-H and PP-R?
PP pipe material is divided into three generations: the first generation is modified by homopolypropylene, called PP-H, and the second generation is made by PP and PE block copolymerization process, called PP-B, the third generation. Modified by random copolymerized polypropylene, called PP-R, the main difference is:
1. The processing properties and environmental stress cracking resistance of these three materials are improved in turn;
2. PP-B has poor strength and good impact resistance. PP-H has good strength and poor impact resistance (brittle), while PP-R avoids such defects.
3. The strength of PP-B and PP-H pipes is significantly reduced after one year, while PP-R pipes maintain high strength even after 50 years;
4. Some special varieties of imported PP-B, the performance is close to PP-R, is also an excellent pipe material.
What are the advantages of PP-R?
PP-R pipe can last up to 50 years under the condition of long-term continuous working water pressure and water temperature up to 95 °C. It is excellent in hygienic, environmental performance and heat resistance, pressure resistance, corrosion resistance, flexibility and seismic resistance. The importance of PP-R pipe in the world is the use of heat fusion technology in the hot and cold water transportation project. Its comprehensive technical performance and economic indicators are better than galvanized pipe, UPVC pipe, PEX pipe, polyethylene pipe and aluminum-plastic composite pipe. One of the leading products of water supply pipelines in developed countries in Europe and America.
How can I easily identify PP-R?
Take a little PP-R material or PP-R tube and ignite it with a lighter. If it is not black after ignition and can pull out a long filament, the material used is PP-R material. If it is black, it is definitely not PP-R material.
At present, there is a phenomenon in the market that PP-B, PP-H and even PP-C impersonate PP-R, so please pay attention to the user.
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