Toughening type compressive strength enhanced unplasticized polyvinyl chloride (PVC-U) electrical bushing

An electrical casing, PVC-U technology, applied in the field of toughened compression-resistant reinforced PVC-U electrical casing, can solve the problems of short service life and high maintenance intensity of PVC-U electrical casing, and achieve effective fluidity and lubricity, improve electrical insulation performance, and improve the effect of mold release

Inactive Publication Date: 2018-02-27
福建亚通新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing PVC-U electrical bushings can no longer meet the needs of existing buildings in terms of aging resistance, toughness, compression resistance and impact strength. PVC-U electrical bushings generally have short service life and high maintenance intensity. defect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The present invention proposes a toughened anti-pressure reinforced PVC-U electrical bushing, comprising the following raw materials in parts by weight: 120 parts of PVC resin, 5 parts of MBS resin, 20 parts of heavy calcium powder, 5 parts of oxidized polyethylene wax, 3 parts of stabilizer, 1 part of dioctyl phthalate, 2 parts of stearic acid, 3 parts of colorant, 3 parts of water-absorbing agent, wherein the stabilizer is a calcium-zinc stabilizer with a mass ratio of 15:2.8:1.5, organic The compounding agent of rare earth and phosphite, the coloring agent is an environment-friendly inorganic pigment.

[0019] Its preparation method comprises the following steps:

[0020] S1. Weigh the raw materials according to the weight part, mix PVC resin and MBS resin at a high speed at 142°C, mix evenly, add heavy calcium powder for heat preservation, and continue mixing for 40 minutes to obtain mixture A for later use;

[0021] S2. Cool the mixture A obtained in step S1 to 90...

Embodiment 2

[0025] A toughened anti-compression reinforced PVC-U electrical bushing proposed by the present invention comprises the following raw materials in parts by weight: 90 parts of PVC resin, 4 parts of MBS resin, 16 parts of heavy calcium powder, 3.5 parts of oxidized polyethylene wax, 1 part of stabilizer, 2 parts of dioctyl phthalate, 1 part of stearic acid, 3 parts of colorant, 2 parts of water-absorbing agent, wherein the stabilizer is a calcium-zinc stabilizer with a mass ratio of 10:2.4:1.2, organic The compounding agent of rare earth and phosphite, the coloring agent is an environment-friendly inorganic pigment.

[0026] Its preparation method comprises the following steps:

[0027] S1. Weigh the raw materials according to the weight part, mix PVC resin and MBS resin at a high speed at 128°C, after mixing evenly, add heavy calcium powder for heat preservation, continue stirring and mixing for 30 minutes, and obtain mixture A for later use;

[0028] S2. Cool the mixture A o...

Embodiment 3

[0032] A kind of toughened anti-pressure reinforced PVC-U electrical bushing proposed by the present invention comprises the following raw materials in parts by weight: 60 parts of PVC resin, 3 parts of MBS resin, 12 parts of heavy calcium powder, 2 parts of oxidized polyethylene wax, 1 part of stabilizer, 1 part of dioctyl phthalate, 3 parts of stearic acid, 2 parts of colorant, 3 parts of water-absorbing agent, wherein the stabilizer is a calcium-zinc stabilizer with a mass ratio of 5:2:0.8, organic The compounding agent of rare earth and phosphite, the coloring agent is an environment-friendly inorganic pigment.

[0033] Its preparation method comprises the following steps:

[0034] S1. Weigh the raw materials according to the weight, and mix the PVC resin and the MBS resin at a high speed at 112°C. After mixing evenly, add heavy calcium powder for heat preservation, and continue mixing for 20 minutes to obtain the mixture A for later use;

[0035] S2. Cool the mixture A o...

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PUM

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Abstract

The invention discloses a toughening type compressive strength enhanced unplasticized polyvinyl chloride (PVC-U) electrical bushing, which is prepared from the following raw materials in parts by weight: 60-120 parts of PVC resin, 3-5 parts of MBS resin, 12-20 parts of heavy calcium powder, 2-5 parts of oxidized polyethlene wax, 1-3 parts of a stabilizer, 1-3 parts of dioctyl phthalate, 1-3 partsof stearic acid, 1-3 parts of a coloring agent and 1-3 parts of a water absorbent. The toughening type compressive strength enhanced PVC-U electrical bushing provided by the invention has the advantages of scientific formula, rigorous proportion, excellent comprehensive performance, no toxicity or odor, resistance to chemical corrosion, high shock resistance and compressive strength, good toughness, aging resistance, long service life, simple preparation method, mild preparation conditions, safe and environmentally-friendly raw materials, less consumption of the raw materials and low preparation cost, thus being worth popularizing.

Description

technical field [0001] The invention relates to the technical field of PVC-U electrical bushings, in particular to a toughened compression-resistant reinforced PVC-U electrical bushing. Background technique [0002] PVC-U electrical casing is made of sanitary polyvinyl chloride (PVC) resin as the main raw material, adding appropriate amount of stabilizer, lubricant, filler, color enhancer, etc., extruded by plastic extruder and injection molded by injection molding machine. The production of pipes and pipe fittings is completed through cooling, solidification, shaping, inspection, packaging and other processes. Excellent physical and chemical properties, chemical corrosion resistance, light weight, certain mechanical strength, high temperature resistance, easy installation, smooth inner wall, and vertical ribs on the outer wall, suitable for residential drainage systems. With the rapid development of the construction industry, the application of PVC-U electrical casing is b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L51/04C08K13/02C08K3/26C08K5/12C08K5/09
CPCC08K2003/265C08L27/06C08L2203/18C08L2205/03
Inventor 彭伏弟叶先安吴亚平陈文彬
Owner 福建亚通新材料科技股份有限公司
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