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Company:Shijiazhuang shentong plastic Industry Co.,LTD

Email: eileen@shentongsuye.com



Address:No. 1-2-402, Dongping Road 5 Jiuxing Court, Qiaodong District, Shijiazhuang, Hebei, China

PPR pipe is made (PP and PE) fumed synthetic polypropylene random copolymer, its molecular structure is characterized PE PP random links among molecules having a molecular weight ranging from 300,000 to 80 million. The use of raw materials to produce PPR pipe, also known polypropylene random copolymer pipes, the late 1980s early 1990s, the development and application of plastic pipe products. With its own excellent performance and a wider range of applications, has a place in the plastic pipe market, it is recognized green products. But in recent years, the operation of the market, said PPR plastic pipe quality analysis also found PPR pipe market, for example, there were many problems, which to a large extent restricted the sound development of PPR pipe.
Materials masterbatch + → → mixing → vacuum feeding material is dried → single screw extruder → color line screw extruder → mold → → sizing sleeve spray vacuum calibration tank → spray cooling water tank → printer → crawler tractor → finished product testing packaging
Industrial processes
Traditionally, three manufacturing processes in the most representative way to produce polypropylene. An inert hydrocarbon diluent hydrocarbon slurry or suspension in the reactor using liquid propylene for transfer to the catalyst, the heat is removed from the system, the inactivation / removal of the catalyst and atactic polymer dissolved. Grades range can be produced is very limited. (The technology has not).
Bulk (slurry or bulk): using liquid propylene, instead of an inert liquid hydrocarbon diluent. The polymer is insoluble in the diluent, but riding in liquid propylene. Polymer formed is withdrawn, and any unreacted monomer is flashed off.
Gas: gaseous propylene in contact with a solid catalyst, resulting in the fluidized bed medium.