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High temperature-resisting silicone tube

A technology of silicone tube and high temperature resistance, which is applied in the field of rubber, can solve the problems of insufficient aging resistance, etc., and achieve the effects of long dynamic life, uniform size distribution and good high temperature resistance

Inactive Publication Date: 2019-02-12
ANHUI ZHONGDING HOSE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone tubes are made of silicone rubber raw rubber added to a double-roller rubber mixer or an airtight kneader, and white carbon black and other additives are gradually added to refine repeatedly and evenly, and then extruded to make products. At present, silicone tubes have insufficient aging resistance. technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high temperature resistant silicone tube, its raw materials include: 80g of silicone rubber, 1g of color masterbatch 1806, 10g of composite ultrafine particles, 0.4g of anti-aging agent 4020, 1g of anti-aging agent DFC-34, 0.8g of anti-aging agent MBZ, lubricant PEG-4000 0.1g, stearic acid 1g, zinc oxide 10g, crosslinking agent 4g.

[0018] The silicone rubber is composed of silicone rubber R401 / 40 and silicone rubber CHN-6700 in a weight ratio of 50:80. The cross-linking agent is composed of dicumyl peroxide, sulfur and accelerator TMTD in a weight ratio of 1:1:0.5.

[0019] Composite ultrafine particles are prepared by the following process: mix 20g of tin tetrachloride, 1g of citric acid, 4g of polyethylene glycol, and 90g of water, heat in microwave for 8min, microwave power is 420W, roast at 850°C for 12min, add 10g of phosphomolybdic acid, 1 g of ammonium chloride and 140 g of 20 wt % ethanol aqueous solution were reacted for 50 min at a reaction temperature of...

Embodiment 2

[0021] A high temperature resistant silicone tube, its raw materials include: 180g of silicone rubber, 0.2g of color masterbatch 1806, 20g of composite ultrafine particles, 0.2g of anti-aging agent 4020, 1.6g of anti-aging agent DFC-34, 0.2g of anti-aging agent MBZ, lubricant PEG -4000 1g, stearic acid 0.2g, zinc oxide 16g, crosslinking agent 2g.

[0022] The silicone rubber is composed of silicone rubber R401 / 40 and silicone rubber CHN-6700 in a weight ratio of 100:30. The cross-linking agent is composed of dicumyl peroxide, sulfur and accelerator TMTD in a weight ratio of 2:0.4:1.2.

[0023] Composite ultrafine particles are prepared by the following process: mix 10g of tin tetrachloride, 3g of citric acid, 1g of polyethylene glycol, and 120g of water, heat in microwave for 4min, microwave power is 480W, roast at 800°C for 16min, add 4g of phosphomolybdic acid, 2 g of ammonium chloride and 100 g of 28 wt % ethanol aqueous solution were reacted for 34 minutes at a reaction t...

Embodiment 3

[0025] A high temperature resistant silicone tube, its raw materials include: 100g of silicone rubber, 0.8g of color masterbatch 1806, 12g of composite ultrafine particles, 0.35g of anti-aging agent 4020, 1.2g of anti-aging agent DFC-34, 0.6g of anti-aging agent MBZ, lubricant PEG -4000 0.2g, stearic acid 0.6g, zinc oxide 12g, crosslinking agent 3.5g.

[0026] The silicone rubber is composed of silicone rubber R401 / 40 and silicone rubber CHN-6700 in a weight ratio of 60:60. The crosslinking agent is composed of dicumyl peroxide, sulfur and accelerator TMTD in a weight ratio of 1.3:0.8:0.6.

[0027] Composite ultrafine particles are prepared by the following process: mix 17g of tin tetrachloride, 1.5g of citric acid, 3g of polyethylene glycol, and 100g of water, heat in microwave for 7min, microwave power is 440W, roast at 840°C for 13min, add 8g of phosphomolybdic acid , 1.3g of ammonium chloride, and 130g of 22wt% ethanol aqueous solution were reacted for 44min at a reaction...

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Abstract

The invention discloses a high temperature-resisting silicone tube. The high temperature-resisting silicone tube is prepared from the following raw materials in parts by weight: 80 to 180 parts of silicone rubber, 0.2 to 1 part of color masterbatch 1806, 10 to 20 parts of composite ultrafine particles, 0.2 to 0.4 part of an anti-aging agent 4020, 1 to 1.6 parts of an anti-aging agent DFC-34, 0.2 to 0.8 part of an anti-aging agent MBZ, 0.1 to 1 part of a lubricant PEG-4000, 0.2 to 1 part of stearic acid, 10 to 16 parts of zinc oxide and 2 to 4 parts of a cross-linking agent. The composite ultrafine particles are prepared by adopting the following process: mixing stannic chloride, citric acid, polyethylene glycol and water, carrying out microwave heating and roasting, adding phosphomolybdicacid, ammonium chloride and an ethanol aqueous solution for reaction, filtrating and drying to obtain the composite ultrafine particles. The high temperature-resisting silicone tube disclosed by the invention has the advantages of extremely excellent flame retardant and lubrication effects, high temperature resistance, aging resistance, high pressure bearing capacity and capability of bearing highand low temperature alternation.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a high temperature resistant silicone tube. Background technique [0002] Silicone tube is the circulation and coating carrier of liquid, gas and other materials. In the industry, silicone rubber tube can be divided into extruded tube and special-shaped tube strip, which are widely used in modern industry, national defense industry and daily necessities. Silicone tubes are made of silicone rubber raw rubber added to a double-roller rubber mixer or a closed kneader, and white carbon black and other additives are gradually added to refine repeatedly and evenly, and then extruded to make products. At present, silicone tubes have insufficient aging resistance. technical problem. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a high-temperature-resistant silicone tube, which has excellent flame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L71/02C08K13/02C08K5/09C08K3/22C08K5/18C08K5/14C08K3/06C08K5/40C08K3/32
CPCC08K2003/2296C08L83/04C08L2201/02C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L71/02C08K13/02C08K5/09C08K3/22C08K5/18C08K5/14C08K3/06C08K5/40C08K3/32
Inventor 陈兴华晏建炜杨显峰鲍仁德郑海波耿本星赵德生
Owner ANHUI ZHONGDING HOSE PROD