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PVC resin composition with high resistance to pressure and high internal pressure-resistant PVC pipe prepared from PVC resin composition

A technology of PVC resin and PVC pipe, which is applied in the field of plastic processing, can solve the problems such as the unsatisfactory pressure resistance and internal pressure resistance of pipes, and achieve the promotion of plasticization performance and plasticization uniformity, improvement of internal pressure resistance, high resistance Effect of internal pressure performance

Active Publication Date: 2019-09-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact strength and hydrostatic strength of the PVC-U pipe have been significantly improved, but the pressure resistance of the entire pipe, especially the internal pressure resistance, is still not ideal

Method used

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  • PVC resin composition with high resistance to pressure and high internal pressure-resistant PVC pipe prepared from PVC resin composition
  • PVC resin composition with high resistance to pressure and high internal pressure-resistant PVC pipe prepared from PVC resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The high pressure-resistant PVC resin composition described in the present embodiment comprises the components of following consumption:

[0038] PVC resin 100kg;

[0039] Mercaptan methyl tin stabilizer 0.8kg;

[0040] Processing aid 1.2kg;

[0041] ASA resin 3.0kg;

[0042] Methyl methacrylate-acrylonitrile copolymer resin (7:3) 2.0kg;

[0043] Calcium stearate 0.5kg;

[0044] Paraffin 0.4kg;

[0045] PE wax 0.3kg.

Embodiment 2

[0047] The high pressure-resistant PVC resin composition described in the present embodiment comprises the components of following consumption:

[0048] PVC resin 100kg;

[0049] Mercaptan methyl tin stabilizer 0.9kg;

[0050] Processing aid 1.0kg;

[0051] ASA resin 3.5kg;

[0052] Methyl methacrylate-acrylonitrile copolymer resin (7:3) 3.5kg;

[0053] Calcium stearate 0.6kg;

[0054] Paraffin 0.5kg;

[0055] PE wax 0.3kg.

Embodiment 3

[0057] The high pressure-resistant PVC resin composition described in the present embodiment comprises the components of following consumption:

[0058] PVC resin 100kg;

[0059] Mercaptan methyl tin stabilizer 1.0kg;

[0060] Processing aid 0.9kg;

[0061] ASA resin 4.0kg;

[0062] Methyl methacrylate-acrylonitrile copolymer resin (7:3) 5.0kg;

[0063] Calcium stearate 0.8kg;

[0064] Paraffin 0.6kg;

[0065] PE wax 0.4kg.

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Abstract

The invention belongs to the technical field of plastic processing, particularly relates to a PVC resin composition with high resistance to pressure, and further discloses a high internal pressure-resistant PVC pipe prepared from the PVC resin composition. According to the PVC resin composition with high resistance to pressure, PVC resin, a PVC stabilizer, methyl methacrylate-acrylonitrile copolymer resin, processing modified resin, a processing aid, calcium stearate, paraffin wax and PE wax are adopted as processing raw materials, the coordination effect of the components is utilized, and the plasticizing performance and plasticizing uniformity of the pipe can be promoted effectively, so that the internal pressure resistance of the pipe is improved. In particular, a good synergistic effect is produced by the methyl methacrylate-acrylonitrile copolymer resin and styrene-acrylic rubber-acrylonitrile copolymer (ASA resin), plasticization of the whole system can be promoted further, and the internal pressure resistance of the entire pipe is improved effectively.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, specifically relates to a high pressure-resistant PVC resin composition, and further discloses a high internal pressure-resistant PVC pipe prepared by the composition. Background technique [0002] Polyvinyl chloride (PVC, Polyvinyl chloride) is a polymer formed by the polymerization of vinyl chloride monomer in peroxide, azo compound and other initiators, or under the action of light and heat according to the mechanism of free radical polymerization. PVC used to be the world's largest general-purpose plastic. It is used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers, etc. widely used. [0003] As we all know, due to its excellent chemical stability, excellent electrical insulation, good flexibility and colorability, PVC pipes ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L33/12C08L33/20C08L23/06C08L91/06C08L51/04C08K5/098C08K5/57
CPCC08L27/06C08L2203/18C08L2205/035C08L33/20C08L23/06C08L91/06C08L51/04C08K5/098C08K5/57
Inventor 刘浩王晶张新华刘容德王晓敏王秀丽孙丽朋高磊
Owner CHINA PETROLEUM & CHEM CORP