阅读说明：本技术 一种低烟无卤三元乙丙橡胶绝缘胶料及其制备方法 (Low-smoke halogen-free ethylene propylene diene monomer insulating rubber material and preparation method thereof ) 是由 张华林 于 2020-06-16 设计创作，主要内容包括：本发明提供一种低烟无卤三元乙丙橡胶绝缘胶料,其包括在配方中加入阻燃剂和低烟组分,各组分用量单位,其含量如下：三元乙丙橡胶5-8份,复合性弹性体10-15份；复合阻燃剂5-15份；氢氧化铝10-20份；氢氧化镁10-20份；硫化体系2-5份；硬脂酸5-10份；偶联剂3-5份；促进剂10-15份。本发明提供的低烟无卤三元乙丙橡胶绝缘胶料中添加复合阻燃剂,用于电缆时,阻燃性能好,防老化,无烟且燃烧时无有毒害气体产生是一种绿色环保的产品。(The invention provides a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material which comprises a flame retardant and low-smoke components added in a formula, wherein the dosage unit of each component is as follows: 5-8 parts of ethylene propylene diene monomer and 10-15 parts of composite elastomer; 5-15 parts of a composite flame retardant; 10-20 parts of aluminum hydroxide; 10-20 parts of magnesium hydroxide; 2-5 parts of a vulcanization system; 5-10 parts of stearic acid; 3-5 parts of a coupling agent; 10-15 parts of an accelerator. The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material provided by the invention is added with the composite flame retardant, and when the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is used for cables, the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is good in flame retardant property, anti-aging, smokeless and environment-friendly, and no toxic gas is generated during combustion.)

1. A low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is characterized in that: the flame retardant and low-smoke components are added into the formula, and the dosage unit of each component comprises the following contents: 5-8 parts of ethylene propylene diene monomer and 10-15 parts of composite elastomer; 5-15 parts of a composite flame retardant; 10-20 parts of aluminum hydroxide; 10-20 parts of magnesium hydroxide; 2-5 parts of a vulcanization system; 5-10 parts of stearic acid; 3-5 parts of a coupling agent; 10-15 parts of an accelerator.

2. The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 1, characterized in that: the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

3. The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 1, characterized in that: the composite elastomer comprises any one or the combination of more than two of polyethylene, polypropylene and polyolefin elastomer.

4. The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 1, characterized in that: the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

5. A method for preparing the low smoke zero halogen ethylene propylene diene monomer rubber insulation compound of any one of claims 1 to 4, characterized by comprising the following steps: uniformly mixing ethylene propylene diene monomer, a composite elastomer, a composite flame retardant, aluminum hydroxide, magnesium hydroxide, a vulcanization system, stearic acid, a coupling agent and an accelerator, then discharging rubber, placing the mixture at the temperature of 20-25 ℃ for 8-10h, then putting the mixture into a close-milling machine, introducing condensed water, and milling the mixture at the temperature of 50-60 ℃ for 2-5mins to obtain the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material.

6. The preparation method of the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 5, characterized by comprising the following steps: the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

7. The preparation method of the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 5, characterized by comprising the following steps: the composite elastomer comprises any one or the combination of more than two of polyethylene, polypropylene and polyolefin elastomer.

8. The preparation method of the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material according to claim 5, characterized by comprising the following steps: the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

9. Use of a low smoke zero halogen ethylene propylene diene monomer rubber insulation according to any one of claims 1 to 4 or claims 5 to 8 in a wire outer sheath.

Technical Field

The invention relates to a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material, in particular to a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material and a preparation method thereof, belonging to the field of rubber materials.

Background

Disclosure of Invention

The invention aims to provide a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material and a preparation method thereof, so as to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

the embodiment of the invention provides a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material which comprises a flame retardant and low-smoke components added in a formula, wherein the dosage unit of each component is as follows: 5-8 parts of ethylene propylene diene monomer and 10-15 parts of composite elastomer; 5-15 parts of a composite flame retardant; 10-20 parts of aluminum hydroxide; 10-20 parts of magnesium hydroxide; 2-5 parts of a vulcanization system; 5-10 parts of stearic acid; 3-5 parts of a coupling agent; 10-15 parts of an accelerator.

Further, the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

Preferably, the composite elastomer includes any one or a combination of two or more of polyethylene, polypropylene and polyolefin elastomer, but is not limited thereto.

Further, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

The embodiment of the invention also provides a preparation method of the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material, which comprises the following steps: uniformly mixing ethylene propylene diene monomer, a composite elastomer, a composite flame retardant, aluminum hydroxide, magnesium hydroxide, a vulcanization system, stearic acid, a coupling agent and an accelerator, then discharging rubber, placing the mixture at the temperature of 20-25 ℃ for 8-10h, then putting the mixture into a close-milling machine, introducing condensed water, and milling the mixture at the temperature of 50-60 ℃ for 2-5mins to obtain the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material.

Further, the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

Preferably, the composite elastomer includes any one or a combination of two or more of polyethylene, polypropylene and polyolefin elastomer, but is not limited thereto.

Further, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material disclosed by the embodiment of the invention is applied to the outer rubber of the mesh wire.

Compared with the prior art, the invention has the advantages that: the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material provided by the invention is added with the composite flame retardant, and when the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is used for cables, the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is good in flame retardant property, anti-aging, smokeless and environment-friendly, and no toxic gas is generated during combustion.

Detailed Description

In view of the deficiencies in the prior art, the inventors of the present invention have made extensive studies and extensive practices to provide technical solutions of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.

The embodiment of the invention provides a low-smoke halogen-free ethylene propylene diene monomer insulating rubber material which comprises a flame retardant and low-smoke components added in a formula, wherein the dosage unit of each component is as follows: 5-8 parts of ethylene propylene diene monomer and 10-15 parts of composite elastomer; 5-15 parts of a composite flame retardant; 10-20 parts of aluminum hydroxide; 10-20 parts of magnesium hydroxide; 2-5 parts of a vulcanization system; 5-10 parts of stearic acid; 3-5 parts of a coupling agent; 10-15 parts of an accelerator.

Further, the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

Preferably, the composite elastomer includes any one or a combination of two or more of polyethylene, polypropylene and polyolefin elastomer, but is not limited thereto.

Further, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

The embodiment of the invention also provides a preparation method of the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material, which comprises the following steps: uniformly mixing ethylene propylene diene monomer, a composite elastomer, a composite flame retardant, aluminum hydroxide, magnesium hydroxide, a vulcanization system, stearic acid, a coupling agent and an accelerator, then discharging rubber, placing the mixture at the temperature of 20-25 ℃ for 8-10h, then putting the mixture into a close-milling machine, introducing condensed water, and milling the mixture at the temperature of 50-60 ℃ for 2-5mins to obtain the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material.

Further, the composite flame retardant comprises a phosphorus-nitrogen flame retardant, wherein the mass ratio of phosphorus element to nitrogen element in the phosphorus-nitrogen flame retardant is 1-2: 3-5.

Preferably, the composite elastomer includes any one or a combination of two or more of polyethylene, polypropylene and polyolefin elastomer, but is not limited thereto.

Further, the mass ratio of the aluminum hydroxide to the magnesium hydroxide is 2-3: 3-5.

The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material disclosed by the embodiment of the invention is applied to the outer rubber of the mesh wire.

The low-smoke halogen-free ethylene propylene diene monomer insulating rubber material provided by the invention is added with the composite flame retardant, and when the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is used for cables, the low-smoke halogen-free ethylene propylene diene monomer insulating rubber material is good in flame retardant property, anti-aging, smokeless and environment-friendly, and no toxic gas is generated during combustion.

The technical solution of the present invention is further explained below with reference to several examples.