Low-smoke anti-aging cross-linked elastomer and preparation method thereof

A cross-linked elastomer, aging-resistant technology, applied in the field of thermoplastic elastomers, can solve the problems of difficult processing, deterioration of the mechanical properties of the flame retardant material matrix, poor compatibility, etc.

Pending Publication Date: 2022-04-19
宁波聚泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the flame retardant efficiency of magnesium hydroxide is low, and the compatibility with the matrix resin is poor. When it is used alone to achieve a certain flame retardancy, it requires a large amount of filling, which will easily cause serious deterioration of the mechanical properties of the flame retardant material matrix and lead to processing difficulties.

Method used

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  • Low-smoke anti-aging cross-linked elastomer and preparation method thereof
  • Low-smoke anti-aging cross-linked elastomer and preparation method thereof
  • Low-smoke anti-aging cross-linked elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A low-smoke and aging-resistant cross-linked elastomer, comprising the following components (unit: g):

[0045]

[0046] Its preparation method comprises the following steps:

[0047] Step 1. Prepare each raw material according to the weight;

[0048] Step 2, mix SEBS with softening oil and stir evenly, let it stand for 20 hours to obtain pre-softened elastomer;

[0049] Step 3, passing the pre-softened elastomer obtained in step 2 and the remaining components through a high-speed mixer, and mixing uniformly to obtain a mixed material;

[0050] Step 4. Put the mixed material into a twin-screw extruder for melt kneading and extrusion. The extrusion temperature is 250° C., and the screw speed is 500 rpm;

[0051] Step 5, cooling the molten output extruded from the extruder die, and then irradiating and cross-linking through ultraviolet radiation equipment to obtain a low-smoke and anti-aging cross-linked elastomer and a preparation method thereof.

Embodiment 2

[0053] A low-smoke and aging-resistant cross-linked elastomer, comprising the following components (unit: g):

[0054]

[0055] Its preparation method comprises the following steps:

[0056] Step 1. Prepare each raw material according to the weight;

[0057] Step 2, mix SEBS with softening oil and stir evenly, let it stand for 40 hours to obtain pre-softened elastomer;

[0058] Step 3, passing the pre-softened elastomer obtained in step 2 and the remaining components through a high-speed mixer, and mixing uniformly to obtain a mixed material;

[0059] Step 4. Put the mixed material into a twin-screw extruder for melt kneading and extruding. The extrusion temperature is 260° C., and the screw speed is 550 rpm;

[0060] Step 5, cooling the molten output extruded from the extruder die, and then irradiating and cross-linking through ultraviolet radiation equipment to obtain a low-smoke and anti-aging cross-linked elastomer and a preparation method thereof.

Embodiment 3

[0062] A low-smoke and aging-resistant cross-linked elastomer, comprising the following components (unit: g):

[0063]

[0064] Its preparation method comprises the following steps:

[0065] Step 1. Prepare each raw material according to the weight;

[0066] Step 2, mix SEBS with softening oil and stir evenly, let it stand for 25 hours to obtain pre-softened elastomer;

[0067] Step 3, passing the pre-softened elastomer obtained in step 2 and the remaining components through a high-speed mixer, and mixing uniformly to obtain a mixed material;

[0068] Step 4. Put the mixed material into a twin-screw extruder for melt kneading and extrusion, the extrusion temperature is 240°C, and the screw speed is 500rpm;

[0069] Step 5, cooling the molten output extruded from the extruder die, and then irradiating and cross-linking through ultraviolet radiation equipment to obtain a low-smoke and anti-aging cross-linked elastomer and a preparation method thereof.

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Abstract

The invention discloses a low-smoke anti-aging cross-linked elastomer, which is prepared from the following components in parts by weight: 80 to 100 parts of SEBS, 10 to 50 parts of POE / MVQ dynamic vulcanization elastomer, 10 to 20 parts of SIBR, 20 to 50 parts of softening oil, 1 to 3 parts of cross-linking agent, 5 to 10 parts of organic zirconium phosphate and 1 to 2 parts of anti-aging agent.By adopting the scheme, the organic zirconium phosphate flame retardant which is environment-friendly and has relatively high compatibility is added; through the filler, the mechanical property and the processability of the cross-linked elastomer are improved, and meanwhile, the cross-linked elastomer is low in smoke concentration during combustion, has good flame retardance and can be widely applied to the fields of wires for automobiles, buildings, electronics or electrics and the like. The invention also discloses a preparation method of the low-smoke anti-aging cross-linked elastomer.

Description

technical field [0001] The invention relates to the technical field of thermoplastic elastomers, in particular to a low-smoke and aging-resistant cross-linked elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer, also known as artificial rubber or synthetic rubber, is a new type of organic polymer synthetic material with excellent properties such as high elasticity, aging resistance, oil resistance, wear resistance, and environmental protection. It has become the latest material to replace traditional rubber. Flame retardants are special chemical additives used to improve the flame retardancy of thermoplastic elastomers. Thermoplastic elastomers added with flame retardants can effectively prevent, delay or terminate the spread of flames when attacked by external fire sources, thereby To achieve the role of flame retardancy. [0003] Halogenated flame retardants generally play a role in gas-phase flame retardancy. They decompose a...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/08C08L9/06C08K5/3492C08K5/50C08K5/5353C08K5/5333
CPCC08L53/025C08L2201/08C08L2207/04C08L2201/02C08L23/0815C08L9/06C08K5/3492C08K5/50C08K5/5353C08K5/5333
Inventor 应建波项赛飞叶专
Owner 宁波聚泰新材料科技有限公司
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