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High-temperature-resistant flame-retardant sealing ring and preparation method thereof

A sealing ring, high temperature resistance technology, applied in the field of high temperature flame retardant sealing ring and its preparation, can solve the problems of deformation of rubber sealing ring, influence of sintering furnace operation, high cost of construction, good heat insulation, excellent resistance to external environment flammability, and the effect of suppressing combustion

Inactive Publication Date: 2021-11-19
FOSHAN TIANLU INTELLIGENT EQUIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, the maximum temperature of the rubber material used to make the sealing ring is only 100-300°C. If it is kept in an environment above 950°C for a long time, the rubber sealing ring will be deformed or even burned, which will affect the operation of the sintering furnace.
The sealing ring made of metal stainless steel wire is used in the range of -80 ~ 800 ° C, but the cost is too high

Method used

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  • High-temperature-resistant flame-retardant sealing ring and preparation method thereof
  • High-temperature-resistant flame-retardant sealing ring and preparation method thereof
  • High-temperature-resistant flame-retardant sealing ring and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] A heat-resistant and flame-retardant sealing ring, comprising the following raw materials in parts by weight: 70 parts of phenolic resin, 75 parts of polyvinyl chloride, 30 parts of polyacrylate rubber, 2 parts of zinc dimethyl dithiocarbamate, di-salt 5 parts of lead phosphite, 18 parts of antimony trioxide, 7 parts of aluminum hydroxide, 8 parts of silicon dioxide, 16 parts of titanium dioxide, 20 parts of dioctyl phthalate, 75 parts of vermiculite powder, chloroprene rubber 28 parts and 85 parts of toluene. Wherein, the phenolic resin is synthesized from phenol and formaldehyde as raw materials. The polyacrylate rubber is methyl acrylate rubber. Vermiculite powder was ground to a particle size of 5 mm.

[0037] A method for preparing a high-temperature-resistant and flame-retardant sealing ring comprises the following steps:

[0038] 1) Mix toluene and chloroprene rubber to make a solution, then add vermiculite to obtain a mixture; keep the mixture in a sealed sta...

Embodiment 2

[0043]A high-temperature-resistant and flame-retardant sealing ring, comprising the following raw materials in parts by weight: 60 parts of phenolic resin, 50 parts of polyvinyl chloride, 20 parts of polyacrylate rubber, 1 part of zinc dimethyl dithiocarbamate, di-salt 3 parts of lead phosphite, 10 parts of antimony trioxide, 5 parts of aluminum hydroxide, 5 parts of silicon dioxide, 5 parts of titanium dioxide, 15 parts of dioctyl phthalate, 50 parts of vermiculite powder, chloroprene rubber 20 parts and 80 parts of toluene.

[0044] Wherein, the phenolic resin is synthesized from cresol and acetaldehyde as raw materials. Polyacrylate rubber is ethyl acrylate rubber. Vermiculite powder was ground to 3mm.

[0045] A method for preparing a high-temperature-resistant and flame-retardant sealing ring comprises the following steps:

[0046] 1) Mix toluene and chloroprene rubber to make a solution, then add vermiculite to obtain a mixture; keep the mixture in a sealed state to a...

Embodiment 3

[0051] A heat-resistant and flame-retardant sealing ring, comprising the following raw materials in parts by weight: 80 parts of phenolic resin, 100 parts of polyvinyl chloride, 40 parts of polyacrylate rubber, 3 parts of zinc dimethyl dithiocarbamate, di-salt 6 parts of lead phosphite, 30 parts of antimony trioxide, 10 parts of aluminum hydroxide, 15 parts of silicon dioxide, 30 parts of titanium dioxide, 30 parts of dioctyl phthalate, 80 parts of vermiculite powder, chloroprene rubber 30 parts and 90 parts of toluene. Wherein, the phenolic resin is synthesized from bisphenol A and formaldehyde as raw materials. Polyacrylate rubber is butyl acrylate rubber. Vermiculite powder was ground to 5mm.

[0052] A method for preparing a high-temperature-resistant and flame-retardant sealing ring comprises the following steps:

[0053] 1) Mix toluene and chloroprene rubber to make a solution, then add vermiculite to obtain a mixture; keep the mixture in a sealed state to avoid absor...

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Abstract

The invention discloses a high-temperature-resistant flame-retardant sealing ring and a preparation method thereof. The high-temperature-resistant flame-retardant sealing ring is prepared from phenolic resin, polyvinyl chloride, polyacrylate rubber, zinc dimethyldithiocarbamate, dibasic lead phosphite, antimony trioxide, aluminum hydroxide, silicon dioxide, titanium dioxide, dioctyl phthalate, vermiculite powder, chloroprene rubber and methylbenzene. The sealing ring disclosed by the invention has excellent flame retardance and high temperature resistance, also has good sealing property at high temperature, is suitable for being used in a use environment of 1200 DEG C, and can be used as a sealing ring of a sintering furnace. The preparation method of the sealing ring has the advantages of simple steps, mild conditions and easily available raw materials.

Description

technical field [0001] The invention relates to the technical field of sealing rings, in particular to a high-temperature-resistant and flame-retardant sealing ring and a preparation method thereof. Background technique [0002] Many equipment or components in the industrial field have variable sealing gaps between adjacent parts. In some cases, especially under high temperature conditions, sealing rings play an important role. The sintering furnace for lithium battery materials is a light-weight continuous industrial furnace, which is widely used in the rapid firing of ternary cathode materials, chemical powders, ceramic substrates and other products. It has low energy consumption, short firing cycle, and furnace It has the advantages of good temperature uniformity and low labor intensity. The roller kiln of the sintering furnace is a kiln equipment for sintering lithium battery powder materials, which can be used for sintering powder materials in an oxidizing atmosphere. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L61/10C08L61/08C08L61/12C08L33/08C08L9/00C08K13/02C08K3/22C08K5/12C08K3/36C08K3/34B29C48/00B29B7/00B29L31/26
Inventor 陈文元邓苑营傅祥桂周积礼杨钧智
Owner FOSHAN TIANLU INTELLIGENT EQUIP TECH CO LTD
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