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A kind of high-performance rigid polyvinyl chloride water supply pipe material and preparation method

A rigid PVC, water supply pipe technology, applied in general water supply saving and other directions, can solve problems such as unfavorable production, temperature sensitivity, strong corrosion, etc., to improve output efficiency, low longitudinal shrinkage rate, and improve wear resistance. sexual effect

Active Publication Date: 2022-08-09
YONGGAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve some of the above-mentioned problems, there are also different research and improvement methods in the existing literature, such as the existing patent literature (publication number: CN103289223B) disclosed by using PVC and CPVC blending to improve the heat resistance of PVC pipes, However, since CPVC is extremely sensitive to temperature and highly corrosive, it is not conducive to production, and the raw material formula and production costs are relatively high, which is not conducive to popularization.

Method used

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  • A kind of high-performance rigid polyvinyl chloride water supply pipe material and preparation method
  • A kind of high-performance rigid polyvinyl chloride water supply pipe material and preparation method
  • A kind of high-performance rigid polyvinyl chloride water supply pipe material and preparation method

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Effect test

Embodiment 1

[0033] The mixed ingredients of the high-performance rigid polyvinyl chloride water supply pipe of this embodiment include the following components by weight:

[0034] PVC-SG5: 50; PVC-SG3: 50; calcium zinc stabilizer: 3.0; compound reinforcing material: 20; internal lubricant monoglyceride: 0.1; internal lubricant oxidized polyethylene: 0.1; external lubricant polyethylene wax : 1.5, external lubricant paraffin: 0.2; processing aid: 1.0; colorant: 0.5; the above-mentioned composite reinforcing material is mainly composed of acrylic graft copolymer polyvinyl chloride, calcium carbonate whisker, nano-activated calcium carbonate and dispersant. And the mass ratio of acrylic acid graft copolymerization polyvinyl chloride: calcium carbonate whisker: nano-active calcium carbonate: dispersant is 1.0: 1.0: 1.0: 1.0, wherein, the dispersant is ethylene bis-stearic acid amide; calcium carbonate whisker are calcium carbonate whiskers with an aspect ratio of 30-35 and the length of the c...

Embodiment 2

[0047] The mixed ingredients of the high-performance rigid polyvinyl chloride water supply pipe of this embodiment include the following components by weight:

[0048] PVC-SG5: 50; PVC-SG3: 50; calcium zinc stabilizer: 3.0; compound reinforcing material: 10; internal lubricant monoglyceride: 0.1; internal lubricant oxidized polyethylene: 0.1; external lubricant polyethylene wax : 1.0; Processing Aid: 1.0; Colorant: 0.5; The above compound reinforcing material is mainly composed of acrylic acid graft copolymerized polyvinyl chloride, calcium carbonate whisker, nano-activated calcium carbonate and dispersant, and acrylic acid graft copolymerized polyvinyl chloride The mass ratio of ethylene: calcium carbonate whisker: nano-active calcium carbonate: dispersant is 1.0:1.0:1.0:0.8, wherein, the dispersant is ethylene bis-stearic acid amide; the calcium carbonate whisker is an aspect ratio of 5~ 10 calcium carbonate whiskers and the length of the calcium carbonate whiskers is 30 μm....

Embodiment 3

[0052] The mixed ingredients of the high-performance rigid polyvinyl chloride water supply pipe of this embodiment include the following components by weight:

[0053] PVC-SG5: 25; PVC-SG3: 75; calcium zinc stabilizer: 3.0; compound reinforcement: 10; internal lubricant monoglyceride: 0.1; internal lubricant stearic acid: 0.1; internal lubricant oxidized polyethylene : 0.1; external lubricant polyethylene wax: 1.5; processing aid: 1.5; colorant: 0.5; the above composite reinforcing materials are mainly composed of acrylic acid graft copolymerized polyvinyl chloride, calcium carbonate whisker, nano-activated calcium carbonate and dispersant composition, and the mass ratio of acrylic acid graft copolymerized polyvinyl chloride: calcium carbonate whisker: nano-active calcium carbonate: dispersant is 1.0: 1.0: 1.0: 1.0, wherein, the dispersant is ethylene bis-stearic acid amide, and the nano-active The particle size of the calcium carbonate is 30 nm; the calcium carbonate whiskers...

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Abstract

The invention relates to a compounding ingredient and a preparation method of a high-performance rigid polyvinyl chloride water supply pipe material, belonging to the technical field of pipe material and its processing. In order to solve the existing problems of poor heat resistance and the like, a compounding ingredient and a preparation method of a high-performance rigid polyvinyl chloride water supply pipe are provided. The compounding ingredient includes the following components in parts by weight: PVC‑SG 5: 25-50; PVC ‑SG 3: 50~70; Stabilizer: 1.5~3.0; Compound reinforcing material: 5.0~20; Lubricant: 0.1~5.0; Colorant: 0.1~0.5; It is composed of ethylene, calcium carbonate whisker, nano-active calcium carbonate and dispersant; in the method, the corresponding pipe material is obtained by mixing the ingredients, melt extrusion, shaping, cooling and cutting. The invention can realize the effects of high wear resistance, high heat resistance, high tensile strength and low longitudinal shrinkage rate of the material.

Description

technical field [0001] The invention relates to a compounding ingredient and a preparation method of a high-performance rigid polyvinyl chloride water supply pipe material, and belongs to the technical field of pipe material and its processing. Background technique [0002] Rigid polyvinyl chloride (hereinafter referred to as PVC-U) plastic pipe is widely used in the field of building water supply and drainage due to its light weight, high cost performance, acid and alkali corrosion resistance, and quick installation and maintenance. It is the most widely used plastic at home and abroad. tubing. [0003] In the plastic pipe industry, the base resin of PVC-U pipe is usually SG5 type PVC resin. During the processing of PVC-U pipe fittings, the fluidity of the material is required to be higher, and SG7 and SG8 with lower polymerization degree but better fluidity are generally used. However, the use of PVC resin with a lower degree of polymerization will cause the mechanical pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L51/00C08K7/08C08K3/26
CPCC08L27/06C08L2205/035C08L2203/18C08L2205/025C08L2201/08C08K2003/265C08K2201/011C08K2201/016C08L51/003C08K7/08C08K3/26Y02A20/20
Inventor 王章林徐林智陈智勇孙华丽徐军标刘良斌齐博
Owner YONGGAO CO LTD