Cable insulating layer material with excellent thermal stability and preparation method thereof

A technology for thermal stability and cable insulation, which is applied in the direction of organic insulators, rubber insulators, plastic/resin/wax insulators, etc., can solve the problems that cannot be completed in practical applications, and achieve improved thermal stability and insulation, good plasticity, and raw materials Easy to get effect

Inactive Publication Date: 2019-07-02

ZIBO MINGTONG ENVIRONMENTAL TECH RES & DEV CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

With the development of society, the amount of cables is increasing. In practical applications, cables are not only used indoors, but also used outdoors. Affected by various harsh environments and weather, the requirements for cable materials are increasing. Hi...

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Method used

The present invention discloses a kind of cable insulation layer material with excellent thermal stability, which adopts resin and rubber with good thermal stability and electrical insulation as main raw materials, prepared with auxiliary agents, greatly improving While improving the thermal stability and insulation of the material, it also increases its light resistance, flame retardancy, and oxidation resistance. It has good plasticity and can be widely used indoors and outdoors. The cable insulating layer materials with excellent thermal stability prepared in the abo...

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Abstract

The invention discloses a cable insulating layer material with excellent thermal stability, which comprises the following raw materials in parts by weight: 30-60 parts of high density polyethylene resin, 15-20 parts of phenolic epoxy resin, 15-20 parts of ethylene propylene rubber, 30-50 parts of styrene-butadiene rubber, 10-30 parts of carbon black, 8-18 parts of talc powder, 3-9 parts of microencapsulated red phosphorus, 4-12 parts of aluminum hydroxide, 15-20 parts of sulfur, 5-12 parts of dibutyl phthalate, 4-12 parts of dioctyl phthalate, 2-6 parts of salicylic acid, 3-8 parts of diethylenetriamine, 5-15 parts of antioxidant and 6-18 parts of heat stabilizer. The invention discloses a cable insulating layer material having excellent thermal stability, a resin and a rubber with good thermal stability and electrical insulation are used as main raw materials and an additive is added to prepare the cable insulating layer material, the thermal stability and the insulation property of the prepared material are greatly improved, the light resistance, the flame retardancy and the oxidation resistance of the prepared material are increased, the plasticity is good, and the cable insulating layer material can be widely used in indoor and outdoor environment. The preparation method provided by the invention is simple, the raw materials are easy to obtain and the cost is low, and the preparation method is worth popularizing.

Application Domain

Rubber insulatorsPlastic/resin/waxes insulators

Technology Topic

Oxidation resistantDiethylenetriamine +16

Examples

Experimental program(5)

Example Embodiment

[0020] Example one

[0021] The present invention provides a cable insulation material with excellent thermal stability, comprising the following parts by weight of raw materials: 55 parts of high-density polyethylene resin, 19 parts of phenolic epoxy resin, 20 parts of ethylene-propylene rubber, 45 parts of styrene butadiene rubber, 26 parts of carbon black, 18 parts of talc, 6 parts of microencapsulated red phosphorus, 10 parts of aluminum hydroxide, 18 parts of sulfur, 8 parts of dibutyl phthalate, 10 parts of dioctyl phthalate, salicylic acid 6 parts of acid, 5 parts of diethylenetriamine, 12 parts of tocopherol, 15 parts of a mixture of calcium soap and diketone.

[0022] The preparation method includes the following steps:

[0023] S1. Put the specific gravity of ethylene-propylene rubber and styrene butadiene rubber into a rubber vulcanizing tank, add the specific gravity of sulfur and salicylic acid, and heat at a high temperature of 175°C for 7 hours to obtain a rubber mixture;

[0024] S2. Add the carbon black of the specific gravity to the mixed rubber in step S1, and stir for 22 minutes to obtain a mixture A;

[0025] S3. The temperature of step S1 is brought to 160°C, and the high-density polyethylene resin with the specific gravity is added to the mixture A and kept for 1 hour to obtain the mixture B;

[0026] S4. At room temperature, mix the specific gravity novolac epoxy resin and diethylene triamine for 1.5 hours to obtain a mixture C;

[0027] S5. Combine mixture C, mixture B, and the specific gravity of talc, microencapsulated red phosphorus, aluminum hydroxide, dibutyl phthalate, dioctyl phthalate, tocopherol, calcium soap and diketone Add the mixture to the high-speed mixer, stir and mix at high speed for 30 minutes;

[0028] S6. Extrude the fully mixed materials in step S5, and use a calender to form a thin sheet with a uniform distribution and a thickness of 0.5 mm.

Example Embodiment

[0029] Example two

[0030] The present invention proposes a cable insulation material with excellent thermal stability, comprising the following parts by weight of raw materials: 38 parts of high-density polyethylene resin, 15 parts of phenolic epoxy resin, 17 parts of ethylene propylene rubber, 40 parts of styrene butadiene rubber, 28 parts of carbon black, 15 parts of talc, 4 parts of microencapsulated red phosphorus, 8 parts of aluminum hydroxide, 18 parts of sulfur, 10 parts of dibutyl phthalate, 10 parts of dioctyl phthalate, salicylic acid 5 parts of acid, 6 parts of diethylene triamine, 10 parts of tocopherol, 12 parts of a mixture of calcium soap and diketone.

[0031] The preparation method includes the following steps:

[0032] S1. Put the specific gravity of ethylene-propylene rubber and styrene butadiene rubber into a rubber vulcanizing tank, add the specific gravity of sulfur and salicylic acid, and heat at a high temperature of 160°C for 8 hours to obtain a rubber mixture;

[0033] S2. Add the carbon black of the specific gravity to the mixed rubber in step S1, and stir for 26 minutes to obtain a mixture A;

[0034] S3. Bring the temperature of step S1 to 130°C, add the high-density polyethylene resin with the specific gravity to the mixture A, and keep it for 2.5 hours to obtain the mixture B;

[0035] S4. At room temperature, mix the specific gravity novolac epoxy resin and diethylene triamine for 1 hour to obtain a mixture C;

[0036] S5. Combine mixture C, mixture B, and the specific gravity of talc, microencapsulated red phosphorus, aluminum hydroxide, dibutyl phthalate, dioctyl phthalate, tocopherol, calcium soap and diketone Add the mixture to the high-speed mixer, stir and mix at high speed for 20 minutes;

[0037] S6. Extrude the fully mixed material in step S5, and press it with a calender to form a sheet with a uniform distribution and a thickness of 1.5 mm, which is then obtained.

Example Embodiment

[0038] Example three

[0039] The present invention provides a cable insulation material with excellent thermal stability, comprising the following parts by weight of raw materials: 50 parts by weight of high-density polyethylene resin, 18 parts of phenolic epoxy resin, 16 parts of ethylene-propylene rubber, 35 parts of styrene butadiene rubber, 22 parts of carbon black, 10 parts of talc, 3 parts of microencapsulated red phosphorus, 12 parts of aluminum hydroxide, 15 parts of sulfur, 8 parts of dibutyl phthalate, 6 parts of dioctyl phthalate, salicylic acid 2 parts of acid, 7 parts of diethylene triamine, 8 parts of tocopherol, 10 parts of a mixture of calcium soap and diketone.

[0040] The preparation method includes the following steps:

[0041] S1. Put the specific gravity of ethylene-propylene rubber and styrene butadiene rubber into a rubber vulcanizing tank, add the specific gravity of sulfur and salicylic acid, and heat at a high temperature of 190°C for 6 hours to obtain a rubber mixture;

[0042] S2. Add the carbon black of the specific gravity to the mixed rubber in step S1, and stir for 15 minutes to obtain a mixture A;

[0043] S3. Bring the temperature of step S1 to 150°C, add the high-density polyethylene resin with the specific gravity to the mixture A, and keep it for 1.5 hours to obtain the mixture B;

[0044] S4. At room temperature, mix the specific gravity novolac epoxy resin and diethylene triamine for 2 hours to obtain a mixture C;

[0045] S5. Combine mixture C, mixture B, and the specific gravity of talc, microencapsulated red phosphorus, aluminum hydroxide, dibutyl phthalate, dioctyl phthalate, tocopherol, calcium soap and diketone Add the mixture to the high-speed mixer, stir and mix at high speed for 40 minutes;

[0046] S6. Extrude the fully mixed materials in step S5, and press them with a calender to form a thin sheet with a uniform distribution and a thickness of 1 mm.

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Description & Claims & Application Information

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Cable insulating layer material with excellent thermal stability and preparation method thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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