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Do you know the manufacturing process of PEX pipe?

Update:08-08-2022
Abst:1.1 The main raw materials for the production of PEX pipes The main raw material for the production of PEX pipe is HDPE, as well as initiators, cross-linking agents, catalysts and other auxiliaries. Other modifiers can also be added if there are special requirements. The PEX tube is manufactured by the world's advanced one-step method (MONSOIL method) technology, using ordinary polyethylene raw materials to add silane grafting material, forming chemical covalent bonds between polymer macromolecu...
1.1 The main raw materials for the production of PEX pipes
The main raw material for the production of PEX pipe is HDPE, as well as initiators, cross-linking agents, catalysts and other auxiliaries. Other modifiers can also be added if there are special requirements.
The PEX tube is manufactured by the world's advanced one-step method (MONSOIL method) technology, using ordinary polyethylene raw materials to add silane grafting material, forming chemical covalent bonds between polymer macromolecular chains to replace the original van der Waals force, thereby forming a three-dimensional The cross-linked polyethylene with cross-linked network structure has a cross-linking degree of 60% to 89%, which makes it have excellent physical and chemical properties.
1.2 Production process
Raw material pretreatment + auxiliary preparation → mixing → melt graft extrusion → pipe forming → cross-linking → inspection and packaging → finished product.
1.3 The role and purpose of PEX pipe additives
The cross-linking agent is to crack the original linear molecular structure to form a graft material, thereby forming a three-dimensional network structure. The role of antioxidants and color particles is to improve the corrosion resistance of PEX pipes, prevent physical changes from long-term sunlight exposure, and resist long-term ultraviolet erosion, thereby extending its service life.

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