High-temperature-resisting and flame retardant single-component deoximation type room temperature vulcanized silicone rubber and preparation method thereof

A room temperature vulcanization, one-component technology, applied in dyeing polymer organic compound treatment, fibrous filler, dyeing physical treatment, etc., can solve the problem that silicone rubber cannot meet the requirements, etc.

Inactive Publication Date: 2015-05-13
刘滨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the heat resistance of silicone rubber is better than that of traditional rubber, as high and new technologies put forward higher and higher requirements for the temperature resistance of materials, silicone rubber cannot meet the requirements under certain high temperature conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1): Pretreatment of ultrafine yttrium-stabilized nano-zirconia

[0039] Put 400g of ultra-fine yttrium-stabilized nano-zirconia powder (purchased from Suzhou Youzirconium Nanomaterials, the same below) into a muffle furnace for sintering treatment at a temperature of 1200°C for 5 hours to obtain a dry powder, and then add 1000g of water, 20g of Polyvinyl alcohol, 10g polyacrylamide, 10g polyethylene glycol, ball milled pulp, rotating speed 300rpm, milled for 1.5h, then placed in a rotary evaporator to dry, heating temperature 120°C, rotating speed 80rpm, the obtained powder was then used ethanol Wash by centrifugation at a rotational speed of 5000 rpm, and finally dry in vacuum at a temperature of 200° C. for 36 hours.

[0040] Step 2): preparation of base material

[0041] Add 1000g of dynamic viscosity 500mPa·s phenyl silicone oil, 300g of fumed silica, 200g of precipitated silica, 250g of treated ultrafine yttrium-stabilized nano-zirconia, 50g of hexamethyldisi...

Embodiment 2

[0047] Step 1): Pretreatment of ultrafine yttrium-stabilized nano-zirconia

[0048] Put 400g of ultrafine yttrium-stabilized nano-zirconia powder in a muffle furnace for sintering at a temperature of 1400°C for 3 hours to obtain a dry powder, then add 1000g of water, 16g of polyvinyl alcohol, 8g of polyacrylamide, and 8g of polyethylene Glycol, ball milling pulping, rotating speed 500rpm, milling for 0.5h, and then drying in a rotary evaporator, heating temperature 150°C, rotating speed 120rpm, the obtained powder was washed with ethanol centrifugally, rotating speed 3000rpm, and finally vacuum-dried at a temperature of 150 ℃, time 48h.

[0049] Step 2): preparation of base material

[0050] Add 1000g of dynamic viscosity 25mPa·s phenyl silicone oil, 500g of fumed silica, 250g of precipitated silica, 300g of treated ultrafine yttrium-stabilized nano-zirconia, 80g of hexamethyldisilazane, and 20g of distilled water into vacuum kneading In the machine, under the conditions of ...

Embodiment 3

[0056] Step 1): Pretreatment of ultrafine yttrium-stabilized nano-zirconia

[0057] Put 400g of ultrafine yttrium-stabilized nano-zirconia powder in a muffle furnace for sintering at a temperature of 1400°C for 5 hours to obtain a dry powder, then add 1000g of water, 24g of polyvinyl alcohol, 12g of polyacrylamide, and 12g of polyethylene Glycol, ball milling pulping, rotating speed 300rpm, milling for 1.5h, and then drying in a rotary evaporator, heating temperature 120°C, rotating speed 100rpm, the obtained powder was washed with ethanol centrifugally, rotating speed 5000rpm, and finally vacuum-dried at a temperature of 200 ℃, time 48h.

[0058] Step 2): preparation of base material

[0059] Add 1000g of dynamic viscosity 25mPa·s phenyl silicone oil, 500g of fumed silica, 250g of precipitated silica, 400g of treated ultrafine yttrium-stabilized nano-zirconia, 80g of hexamethyldisilazane, and 20g of distilled water into vacuum kneading In the machine, under the condition of...

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Abstract

The invention discloses high-temperature-resisting and flame retardant single-component deoximation type room temperature vulcanized silicone rubber and a preparation method thereof. The high-temperature-resisting and flame retardant single-component deoximation type room temperature vulcanized silicone rubber comprises the following components: a base polymer, a base material, gamma-glycidyl ether methylpropyl trimethoxy silane, methylacryloyl acyloxy propyl trimethoxy silane, phenyl tridiacetylmonoxime silane, vinyl tridiacetylmonoxime silane, phenyl silicon oil and dibutyltin dilaurate, wherein the base material comprises the following components: phenyl silicon oil, fumed silica, precipitated white carbon black, treated superfine yttria-stabilized type nano-zirconia, hexamethyl disilazane and distilled water. The invention further discloses a preparation method for the high-temperature-resisting and flame retardant single-component deoximation type room temperature vulcanized silicone rubber. Due to the special treatment process, the superfine yttria-stabilized type nano-zirconia can be sufficiently dispersed in the deoximation type room temperature vulcanized silicone rubber, due to the excellent property and the special property of the superfine yttria-stabilized type nano-zirconia, the single-component deoximation type room temperature vulcanized silicone rubber which is resistant to high temperature as high as 400 DEG C for a long time and has the flame retardancy can be prepared.

Description

technical field [0001] The invention belongs to one-component deoxime type room temperature vulcanized silicone rubber, in particular to a high temperature resistant silicone rubber. Background technique [0002] Silicone rubber is one of the most important synthetic rubbers. It has excellent weather resistance, thermal stability, low temperature toughness and electrical insulation. It is widely used in different fields, such as aerospace, electronic appliances, textiles, construction, etc. Although the heat resistance of silicone rubber is better than that of traditional rubber, as high and new technologies put forward higher and higher requirements for the temperature resistance of materials, silicone rubber cannot meet the requirements under certain high temperature conditions. Therefore, improving the heat resistance of silicone rubber to prolong its life has been a research hotspot. [0003] The melting point of nano-zirconia is as high as 2680°C, with low thermal expa...

Claims

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Application Information

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IPC IPC(8): C08L83/06C08L83/07C08L83/04C08G77/20C08G77/06C08K9/04C08K3/22C08K3/36C09C1/00C09C3/10C09C3/04
Inventor 刘滨吴洋林巧婉
Owner 刘滨
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