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Heat-resistant ethylene-vinyl acetate rubber cable material and preparation method thereof

A technology of vinyl acetate and cable materials, which is applied to rubber insulators, organic insulators, etc., and can solve problems such as insufficient development efforts and insufficient selection of special materials

Pending Publication Date: 2021-05-18
DONGGUAN RECHEER ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at this stage, the development of this kind of special power cord insulation materials at home and abroad is not enough, and the selection of special materials that enhance its various performance requirements is not enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The invention discloses a preparation method of ethylene-vinyl acetate rubber heat-resistant cable material. The preparation method comprises the following steps:

[0031] Step 1, add each component in turn according to the formula amount, and disperse evenly under closed mixing conditions supplemented by ultrasonic and microwave conditions to obtain mixture A;

[0032] Step 2, adding the crosslinking agent to the mixture A under open mixing conditions supplemented by ultrasonic and microwave conditions, kneading evenly and rolling to obtain the mixture B;

[0033] Step 3: Extrude, vulcanize and cross-link the mixture B under extrusion vulcanization conditions supplemented by ultrasonic and microwave conditions, to obtain the ethylene-vinyl acetate rubber heat-resistant cable material.

[0034] Preferably, the order of adding the components in step 1 is: sequentially add filler reinforcing agent, crosslinking aid, plasticizer, anti-aging agent, colorant, processing aid,...

Embodiment 1

[0057] Embodiment 1: This embodiment provides a kind of preparation method of ethylene-vinyl acetate rubber heat-resistant cable material, and its preparation method comprises the following steps:

[0058] Step 1, 25kg calcined kaolin, 1.2kg triallyl isocyanate TAIC, 4kg trioctyl trimellitate (TOTM), 0.5kg tetrakis[β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionic acid] pentaerythritol ester (1010), 0.5kg 2,2,4-trimethyl-1,2-dihydroquinoline polymer (RD), 0.08kg blue toner, 3kg magnesium oxide, 1.5kg of zinc calcium stearate, 3kg of ethylene-propylene rubber (EPDM7001), and 32kg of ethylene-vinyl acetate rubber (EVM) were sequentially added to the closed rubber mixer, supplemented by a microwave with a power of 200W, and the power was 200W, the frequency The ultrasonic wave is 40kHz, and the ultrasonic wave is intermittently stopped for 20s every 10s. Under the conditions of 70°C and 40r / min, after banburying for 8min, the temperature is raised to 80°C, banburying for 40min, an...

Embodiment 2

[0067] Embodiment 2: This embodiment provides a kind of preparation method of ethylene-vinyl acetate rubber heat-resistant cable material, and its preparation method comprises the following steps:

[0068] Step 1, 25kg calcined kaolin, 1.2kg triallyl isocyanate TAIC, 4kg trioctyl trimellitate (TOTM), 0.5kg tetrakis[β-(3,5-di-tert-butyl-4 -Hydroxyphenyl) propionic acid] pentaerythritol ester (1010), 0.5kg 2,2,4-trimethyl-1,2-dihydroquinoline polymer (RD), 0.06kg red toner, 0.01kg carbon black N660, 3kg of magnesium oxide, 1.5kg of zinc calcium stearate, 3kg of ethylene-propylene rubber (EPDM7001), and 32kg of ethylene-vinyl acetate rubber (EVM) were sequentially added to the closed rubber mixer, supplemented by a microwave with a power of 200W, And the ultrasonic power is 100W, the frequency is 60kHz, and the ultrasonic wave is intermittently stopped for 20s every 10s. Under the condition of 90°C and the speed of 40r / min, after banburying for 10min, the temperature is raised to...

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Abstract

The invention discloses a preparation method of an ethylene-vinyl acetate rubber heat-resistant cable material, which comprises the following steps: sequentially adding all components according to the formula ratio, and uniformly dispersing the components under a closed mixing condition under the assistance of ultrasonic and microwave conditions to obtain a mixture A; adding the cross-linking agent under an open mixing condition under the assistance of ultrasonic and microwave conditions, uniformly turning and mixing the components, and rolling the mixture to obtain a mixture B; and carrying out extrusive vulcanization and crosslinking on the mixture B under extrusion and vulcanization conditions under the assistance of ultrasonic and microwave conditions to obtain the ethylene-vinyl acetate rubber heat-resistant cable material. The invention further discloses the ethylene-vinyl acetate rubber heat-resistant cable material. According to the invention, the cable material with high temperature resistance, aging resistance, high strength and high toughness is prepared through selection and content optimization of the components, improvement of a preparation process and synergism, and the cable material is used for coating the peripheral side of an electric wire, so that a power line meets the requirements of resisting heat of 110 DEG C and aging.

Description

technical field [0001] The invention relates to the technical field of cable production, in particular to an ethylene-vinyl acetate rubber heat-resistant cable material and a preparation method thereof. Background technique [0002] With the popularization of household appliances, the development of the household appliance industry has led to the rapid development of the special wire industry. Many household appliances, such as kitchen appliances, will generate heat. The demand for this new type of line is even stronger. At present, there are only ordinary power cords for household appliances in the domestic power cord standards, and the temperature resistance performance cannot meet the daily needs of household appliances. In today's household appliance standards, the temperature resistance requirements for power cords have been increased from the original 60°C to 80°C, and some even require 105°C. This requires that the cable material for the production of this type of r...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08K13/02C08K3/34C08K5/12C08K5/134C08J3/24C08J3/28H01B3/28B29B7/00
CPCC08L23/0853C08J3/246C08J3/28H01B3/28B29B7/002C08J2323/08C08J2423/16C08L2201/08C08L2203/202C08L2201/02
Inventor 白建文王欢章志鸿
Owner DONGGUAN RECHEER ELECTRIC APPLIANCE