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High-rigidity PVC electric conduit and preparation method thereof

A high-stiffness, PVC resin technology, applied in the field of high-stiffness PVC power conduits and its preparation, can solve the problems of material toughness decline, plastic hardening, cracking, etc., and achieve the goal of improving mechanical strength, increasing adsorption, and increasing specific surface area Effect

Active Publication Date: 2022-06-24
广东中讯通讯设备实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Power conduits need to have high structural strength, which requires high compressive strength, rigidity and hardness; but for traditional PVC materials, the increase in rigidity usually leads to a decrease in the toughness of the material; when the power conduit When in a low temperature environment, the molecules in the plastic are tightly combined again and cannot rotate freely, resulting in plastic hardening, resulting in defects such as brittleness and cracking

Method used

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  • High-rigidity PVC electric conduit and preparation method thereof
  • High-rigidity PVC electric conduit and preparation method thereof
  • High-rigidity PVC electric conduit and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0040] The preparation method of nanoporous calcium carbonate comprises the following steps:

[0041] ① Dissolve 0.3kg of polyvinylpyrrolidone in 5kg of water, add 1.5kg of sodium carbonate, stir evenly to obtain mixed solution A;

[0042] 2. After dissolving 0.8 kg of calcium chloride in 5 kg of water, add 0.1 kg of sodium lauryl sulfate, stir evenly, and adjust the pH to 9 to obtain mixed solution B;

[0043] 3. Add the mixed solution A to the mixed solution B, stir evenly to obtain a suspension; after the suspension is allowed to stand for 8 hours, the filter cake is obtained by suction filtration;

[0044] ④ After washing the filter cake three times with deionized water, drying at 80° C. for 6 hours, and grinding to an average particle size of 100 nm, nanoporous calcium carbonate is obtained.

preparation example 2

[0046] The difference between this preparation example and the preparation example 1 of nanoporous calcium carbonate is that the consumption of polyvinylpyrrolidone is 0.6kg, the consumption of sodium carbonate is 2.5kg, the consumption of calcium chloride is 1.2kg, and the consumption of sodium lauryl sulfate is 1.2kg. The dosage is 0.3kg.

preparation example 3

[0048] The difference between this preparation example and the preparation example 1 of nanoporous calcium carbonate is that the mixed solution A in step ① is only formed by mixing 1.5 kg of sodium carbonate and 5 kg of water.

[0049] Preparation example of modified montmorillonite

[0050] Unless otherwise specified, the raw materials in the preparation examples can be obtained commercially. The cationic modifier can be dodecyltrimethylammonium bromide, cetyltrimethylammonium bromide, octadecyltrimethylammonium bromide, diddecyldimethylammonium chloride , two hexadecyl dimethyl ammonium chloride dioctadecyl dimethyl ammonium chloride species of one or more mixtures, the cationic modifier of the following preparation examples all select octadecyl trimethyl Ammonium bromide; polyvinylpyrrolidone is polyvinylpyrrolidone K90; montmorillonite is natural montmorillonite with a fineness of 100 mesh.

[0051] Preparation Example 1 of Modified Montmorillonite

[0052] The preparatio...

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Abstract

The invention relates to the technical field of electric power pipes, and particularly discloses a high-rigidity PVC electric power conduit and a preparation method thereof. The high-rigidity PVC electric conduit is prepared from the following raw materials in parts by weight: 100 parts of PVC resin, 20-30 parts of nano-porous calcium carbonate, 4-6 parts of modified montmorillonite, 1-3 parts of a stabilizer, 0.5-1 part of an anti-impact modifier and 0.2-1 part of a lubricant, the modified montmorillonite is prepared by performing intercalation treatment on montmorillonite by using a cationic modifier and polyvinylpyrrolidone. The power conduit can be used for cable protection, and has the advantages of high rigidity and high toughness.

Description

technical field [0001] The present application relates to the technical field of power pipes, and more particularly, to a high-rigidity PVC power conduit and a preparation method thereof. Background technique [0002] The main function of the power conduit is to protect the cables of the power system from the interference and damage of the external environment, so as to protect the safe operation of the line. The materials of power conduits are mainly PE, PP, PVC, etc. For PVC power conduits, it is made of rigid PVC, stabilizers, lubricants, etc., and then extruded, which has good chemical stability. properties, high tensile strength and hardness, and flame retardancy. [0003] The power conduit needs to have high structural strength, which requires high compressive strength, rigidity and hardness; but for traditional PVC materials, the increase in rigidity usually leads to a decrease in the toughness of the material; when the power conduit is When in a low temperature env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/04C08K7/24C08K9/04C08K3/34
CPCC08L27/06C08K2201/011C08L2203/18C08L33/04C08K7/24C08K9/04C08K9/08C08K3/346
Inventor 杨国涛杨杰
Owner 广东中讯通讯设备实业有限公司
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