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A low-temperature-resistant halogen-free flame-retardant rubber and its preparation method

A low-temperature-resistant rubber technology, which is applied in the field of low-temperature-resistant halogen-free flame-retardant rubber and its preparation, can solve the problems of reducing the low-temperature resistance of rubber materials, and achieve the effects of good low-temperature resistance, convenient use, and small bending radius

Active Publication Date: 2021-01-12
沈阳新飞宇橡胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Throughout the existing technology, there are many rubber materials with halogen-free flame-retardant properties, and a large part of them are EPDM materials. However, because halogen-free flame-retardant rubber requires a large amount of inorganic flame retardants, the rubber material is greatly reduced. Due to the low temperature resistance of the material, there are very few reports on products with halogen-free flame retardant properties and low temperature performance.

Method used

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  • A low-temperature-resistant halogen-free flame-retardant rubber and its preparation method
  • A low-temperature-resistant halogen-free flame-retardant rubber and its preparation method
  • A low-temperature-resistant halogen-free flame-retardant rubber and its preparation method

Examples

Experimental program
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Effect test

preparation example Construction

[0049] A method for preparing a low-temperature-resistant rubber with halogen-free flame-retardant properties, comprising the steps of:

[0050] Step 1, taking each component according to parts by weight;

[0051] Step 2. On the open rubber mixer, adjust the roller distance to the specified size (determined according to the amount of rubber mixing), adjust and fix the position of the rubber baffle; put the raw rubber into the roller gap of the open mixer along one side of the roller In the process, the glue is evenly and continuously wrapped on the front roller by means of tamping, rolling, and triangular bagging, leaving an appropriate amount of accumulated glue on the top of the roller distance. After 2-3 minutes of rolling and smelting, a smooth and gap-free Roller glue;

[0052] Step 3. According to the following feeding order, add various raw materials evenly along the axis of the roller in turn. After each feeding, after they are all eaten, cut the left and right 3 / 4 kn...

Embodiment 11～ Embodiment 14

[0084] According to the aforementioned screening results and implementation steps, Example 11-Example 14 and their inspection results are shown in Table 5 and Table 6.

[0085] Table 5 Low-temperature-resistant halogen-free flame-retardant EPDM formulations provided by Examples 11-14

[0086]

[0087]

[0088] Performance Testing:

[0089] Embodiment 11-14 is tested, and test result is as shown in table 6:

[0090] The performance test result of the rubber that table 6 embodiment 11-14 provides

[0091]

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Abstract

The invention relates to the field of chemical product production, and particularly relates to low-temperature-resistant halogen-free flame-retardant rubber and a preparation method thereof. The rubber comprises the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer (EPDM), 3-8 parts of zinc oxide, 0.5-3 parts of stearic acid, 0.5-3 parts of polyethylene glycol (PEG)4000; 30-100 parts of a reinforcing agent nano silica gravel S20, 80-150 parts of a flame retardant LH3, 3-10 parts of red phosphorus; 10-30 parts of a plasticizer, 0.2-2.5 parts of a vulcanizing agent and 2-7 parts of a vulcanization accelerator. The rubber prepared by the invention has halogen-free flame-retardant performance, has low-temperature performance, is economical and environmentally friendly, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of chemical product production, in particular to a low-temperature-resistant halogen-free flame-retardant rubber and a preparation method thereof. Background technique [0002] After more than 20 years of development, China's high-speed train technology has entered the ranks of the world's advanced high-speed train technology from the introduction, digestion and absorption of high-speed EMUs from Germany, Japan and France to the current independent innovation. From train manufacturing to test systems, from related materials to auxiliary technologies, the intellectual property capabilities of my country's high-speed rail enterprises have rapidly improved. The low-temperature-resistant halogen-free flame-retardant rubber hose used as the sensor signal line protection tube for high-speed trains such as CRH3C and CRH380 in my country was developed under this background. [0003] Halogenated flame retardants are mainly br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L71/02C08L91/06C08K13/02C08K3/22C08K3/26C08K3/02C08K5/09H01B3/28
CPCC08K2003/026C08K2003/2296C08K2003/265C08K2003/267C08L23/16C08L2201/02C08L2201/22C08L2203/18H01B3/28C08L71/02C08L91/06C08K13/02C08K3/22C08K3/26C08K3/02C08K5/09
Inventor 张洪生刘湛洲林凤文武洋张宏国刘炎廉虹邹兴月李銮肖晶
Owner 沈阳新飞宇橡胶制品有限公司
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