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Flame-retardant silicone rubber and preparation method thereof

A technology of silicone rubber and flame-retardant fiber, which is applied in the field of silicone rubber to achieve the effect of improving flame-retardant effect, increasing utilization value, and good heat insulation effect

Inactive Publication Date: 2020-04-10
厦门汉升橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the first object of the present invention is to provide a flame-retardant silicone rubber, which has the advantages of high flame-retardant performance, utilization of plant ash waste, and reduction of plant ash pollution.

Method used

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  • Flame-retardant silicone rubber and preparation method thereof
  • Flame-retardant silicone rubber and preparation method thereof
  • Flame-retardant silicone rubber and preparation method thereof

Examples

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Effect test

Embodiment 1

[0050] Example 1: A flame-retardant silicone rubber, the components and their corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0051] Step 1: Add the plant ash after straw burning and flame-retardant fiber into the mixing tank according to the weight ratio of 1:4. Wherein, the length of the flame-retardant fiber is between 8mm and 10mm. Add water into the mixing tank, the weight ratio of water to plant ash is 1:6, and stir for 15 minutes at a stirring speed of 20r / min to obtain wet modified plant ash.

[0052] The wet modified plant ash is taken from the mixing tank and kneaded into several granules to obtain the modified plant ash wet granules, wherein the particle size of the plant ash wet granules is controlled between 0.2-4 mm. When rubbing the wet modified plant ash, ensure that the surface of the wet modified plant ash is distributed with flame-retardant fibers, and make one end of the flame-retardant fiber embedded in ...

Embodiment 2～4

[0055] Embodiments 2-4: a flame-retardant silicone rubber, the difference from Embodiment 1 is that each component and its corresponding weight parts are shown in Table 1.

[0056] Each component and parts by weight thereof in Table 1 embodiment 1~4

[0057]

Embodiment 5

[0058] Embodiment 5: A kind of flame-retardant silicone rubber, the difference from Example 1 is that the raw material of silicone rubber also adds glass microspheres that are 1 part by weight, glass microspheres and methyl vinyl raw rubber Add it to the No. 1 mold together.

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Abstract

The invention discloses flame-retardant silicone rubber and a preparation method thereof, and relates to the field of silicone rubber. The technical key points are as follows: the raw materials of thesilicone rubber comprise the following components in parts by weight: 90-110 parts of methyl vinyl raw rubber; 5-8 parts of modified plant ash; 2-3 parts of a vulcanizing agent; 0.7 to 0.9 part of aninternal release agent; wherein the modified plant ash comprises granular plant ash and flame-retardant fibers embedded in the plant ash, one ends of the flame-retardant fibers penetrate out of the plant ash, and the modified plant ash has the advantages that the flame-retardant performance is high, plant ash waste is utilized, and the plant ash pollution problem is reduced.

Description

technical field [0001] The invention relates to the field of silicone rubber, more specifically, it relates to a flame-retardant silicone rubber and a preparation method thereof. Background technique [0002] Silicone rubber refers to the rubber whose main chain is composed of silicon and oxygen atoms alternately, and there are usually two organic groups attached to the silicon atoms. Silicone rubber has good low temperature resistance, and generally can still work at -55°C. At the same time, the heat resistance of silicone rubber is also outstanding. It can work for a long time at 180°C, and it can withstand a few weeks or longer at a temperature slightly higher than 200°C. Furthermore, silicone rubber has good air permeability, and its oxygen transmission rate is the highest among synthetic polymers. Therefore, many things in life are made of silicone rubber. [0003] In the Chinese invention patent with the publication number CN109438989A, a silicone rubber is disclose...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/08C08K11/00C08K7/20C08K3/26C08K3/08
CPCC08K3/08C08K3/26C08K7/20C08K11/00C08K13/08C08K2003/085C08K2003/265C08K2201/003C08L2201/02C08L83/04
Inventor 尤韶珊谢为川林增福
Owner 厦门汉升橡塑制品有限公司
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