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Production method for PVC-U drainage pipe

A PVC-U, production method technology, applied in the field of pipes, can solve problems such as aging and accelerating pipes, and achieve the effects of good compression resistance, good anti-aging ability, rapid crack growth and strong fracture toughness

Inactive Publication Date: 2015-11-25
GUANGXI JINTAN PIPE IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for the drainage pipes used in households, due to long-term exposure to the external space environment, the sun and acid-base changes will accelerate the aging of the pipes

Method used

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Embodiment Construction

[0017] In order to further illustrate the technical means adopted by the present invention and its effects, the following is a detailed description in conjunction with preferred embodiments of the present invention.

[0018] To achieve the above object, the present invention provides a PVC-U drainage pipe production method, the PVC-U drainage pipe production method

[0019] Step 1: Put the raw materials into the mixer to stir and dry to form a mixture;

[0020] The raw materials include: chlorinated polyethylene, clay nanocomposite material, linear low density polyethylene, polydicyclopentadiene, EPDM rubber, monoalkoxy unsaturated fatty acid titanate, dicumyl peroxide , p-benzoquinone dioxime, tocopheryl acetate, aluminum distearate, zinc isooctanoate, ethoxylated lauramide, calcium montanate, nickel powder, di(3,4-dimethyl)benzyl Sorbitol, carnauba wax, glyceryl monostearate, carbide slag, calcium hexaaluminate, brucite nanofibers, polypropylene adipate, filler masterbatch,...

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Abstract

The invention provides a production method for a PVC-U drainage pipe. The method comprises the following steps: step 1, adding raw materials into a mixer and carrying out stirring and drying so as to form a mixture; step 2, adding the mixture into an extractor and carrying out melting, extruding and granulating; and step 3, adding an obtained granulated material into an extruder, then carrying out melting and die extrusion, and carrying out spray cooling through a cooling water tank so as to obtain the PVC-U drainage pipe, wherein a principle in the step 1 is as follows: a weight of an aluminum-free stabilizer accounts for 4% of the weight of the raw materials; the weight of chlorinated polyethylene accounts for 6% of the weight of the raw materials; the weight of titanium dioxide accounts for 1.4% of the weight of the raw materials; the weight of paraffin accounts for 0.2% of the weight of the raw materials; and the weight of stearin accounts for 0.2% of the weight of the raw materials; and a clay nanometer composite material is a layered silicate nanometer material. The PVC-U drainage pipe provided by the invention has ageing resistance, flexibility, low-temperature resistance, high-temperature resistance, rapid crack propagation and strong fracture toughness.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to a production method of a PVC-U drainage pipe. Background technique [0002] PVC material is widely used in the field of water pipe manufacturing due to its high strength, high temperature resistance, and good corrosion resistance. Because it does not rust and has strong flame retardancy, it is an ideal pipe material for gas pipes; compared with steel pipes, PVC material has corrosion resistance and is not easy to breed microorganisms. [0003] However, for the drainage pipes used in households, due to long-term exposure to the external space environment, the sun and acid-base changes will accelerate the aging of the pipes. In response to this problem, most drainage pipes are made of PVC pipes, and different PVC pipes have different preparation methods and characteristics. Contents of the invention [0004] The technical problem to be solved by the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/28C08L45/00C08L23/16C08L91/06C08L67/02C08L83/04C08L71/02C08L75/06C08L33/12C08L23/12C08K13/04C08K7/08C08K3/34C08K5/098C08K3/22C08K5/09C08K5/12C08K5/11C08J3/22
CPCC08L23/0815C08J3/226C08J2323/08C08J2323/16C08J2345/00C08J2423/12C08K2201/011C08K2201/014C08L23/16C08L45/00C08L2201/08C08L2203/18C08L2205/025C08L2205/035
Inventor 王幼芳冷建波吴品玲
Owner GUANGXI JINTAN PIPE IND TECH CO LTD
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