A kind of cpvc pipe material and preparation method thereof

A CPVC pipe and CPVC resin technology, applied in the field of CPVC pipe and its preparation, can solve the problems of decreased impact performance of materials, limited expansion of application fields, poor thermal stability, etc., and achieves simple processing, low cost, and many internal pores. Effect

Active Publication Date: 2022-04-15
任丘市华凯通信设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melting temperature of CPVC resin is relatively high, and the processing temperature (180-110°C1 is relatively close to its decomposition temperature, and its thermal stability is not good. decline, which seriously limits the expansion of its application field

Method used

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  • A kind of cpvc pipe material and preparation method thereof
  • A kind of cpvc pipe material and preparation method thereof
  • A kind of cpvc pipe material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1, a kind of preparation method of PVC resin comprises the following steps:

[0044] Test equipment and raw materials: 4m 3 Polymerization kettle, two layers of three-blade back-swept stirring, two baffles. Vinyl chloride monomer, purity≧11.18%, initiator 1 is 75% (m / m) diethylhexyl peroxydicarbonate organic solution, purchased from Tianjin Aksu Chemical Company, initiator 2 is 75% (m / m) m) organic solution of cumyl peroxyneodecanoate, purchased from Tianjin Aksu Chemical Company, dispersant 1 is 6.0% (m / m) polyvinyl alcohol KH-20 aqueous solution, purchased from Japan Synthetic Chemical Company, dispersed Agent 2 is 15% (m / m) dioctyl adipate methanol solution, purchased from Nantong Runfeng Petrochemical Co., Ltd. The terminator is 40% (m / m) acetone thiosemicarbazone aqueous solution, purchased from Hubei Ferry Chemical Co., Ltd.

[0045] Add 1700L of deionized water, 680g of initiator 1, 115g of initiator 2, 5.1kg of dispersant 1, and 1.02kg of dispersant 2 into th...

Embodiment 2

[0055] The addition amount of dispersant 1 is 6.12kg, and the addition amount of dispersant 2 is 0.613kg. All the other parts are completely consistent with Example 1.

Embodiment 3

[0057] The addition amount of dispersant 1 is 2.55kg, and the addition amount of dispersant 2 is 2.04kg. All the other parts are completely consistent with Example 1.

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Abstract

The invention provides a CPVC pipe material and a preparation method thereof, belonging to the field of polymer materials, comprising polyvinyl alcohol having an alcoholysis degree of 78-82 mol% and dioctyl adipate in a mass ratio of 2:1-3 The binary composite dispersion system prepared PVC resin, prepared CPVC-g-MHA by chlorinated in-situ grafting method, and blended the obtained CPVC-g-MHA with stabilizers, processing aids, impact modifiers, etc. Prepare CPVC pipe. The CPVC pipe material provided by the invention and the preparation method thereof have the advantages of good toughness, good heat resistance, high strength, simple and easy processing, high efficiency and low cost.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a CPVC pipe and a preparation method thereof. Background technique [0002] CPVC is the product of PVC after chlorination reaction, and the mass fraction of chlorine can theoretically be increased from 56.8% to 73.2%. With the increase of chlorine content, the molecular polarity increases, and the intermolecular force strengthens, so that the physical and mechanical properties of CPVC resin, especially weather resistance, aging resistance, corrosion resistance, thermal deformation, solubility, flame retardant and self-extinguishing Compared with PVC, its performance and other aspects are greatly improved, so it is widely used in water supply and drainage systems, power cable casings and industrial pipes in heat-resistant environments. It is a polymer material with broad development prospects. However, the melting temperature of CPVC resin is relatively high, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F8/22C08F259/04C08F222/06C08F2/44C08K5/12C08K7/26C08L51/00C08L33/04C08L9/02C08L91/06C08K13/02C08K5/098C08K3/26C08K3/22C08K5/103
CPCC08F114/06C08F8/22C08F2/44C08K5/12C08K7/26C08L51/003C08L2203/18C08L2205/035C08K2003/265C08K2003/2227C08K2003/2241C08L2201/08C08F259/04C08F222/06C08L33/04C08L9/02C08L91/06C08K13/02C08K5/098C08K3/26C08K3/22C08K5/103
Inventor 封雨涵李义苓封卫华张少川李想
Owner 任丘市华凯通信设备有限公司
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