Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high temperature resistant rubber gasket and preparation method thereof

A rubber gasket, high temperature resistance technology, applied in the field of sealing materials, can solve the problems of poor oil resistance of the gasket

Active Publication Date: 2021-06-01
XICHUAN COUNTY POWER BUREAU
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing gasket obtained by this patent has poor oil resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of high temperature resistant rubber gasket and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-temperature-resistant rubber sealing gasket is prepared from the following raw materials in parts by weight:

[0024] 40 parts of acrylate rubber, 25 parts of natural rubber, 15 parts of tetrafluoroethylene-hexafluoropropylene copolymer, 10 parts of boron fiber, 8 parts of nano sepiolite, 5 parts of flame retardant, 15 parts of methyl silicone oil, plasticizer 12 parts, 1 part of antioxidant, 1 part of bis-pentasulfurizing agent, 2 parts of coupling agent and 0.5 part of accelerator.

[0025] The flame retardant is flame retardant PDSPB.

[0026] Described plasticizer is di-isooctyl phthalate.

[0027] Described antioxidant is antioxidant 1010.

[0028] The coupling agent is silane coupling agent KH550.

[0029] The accelerator is triallyl isocyanurate.

[0030] The preparation method of above-mentioned high-temperature-resistant rubber gasket, comprises the following steps:

[0031] (1) Put acrylate rubber, natural rubber, and tetrafluoroethylene-hexafluoro...

Embodiment 2

[0035] A high-temperature-resistant rubber sealing gasket is prepared from the following raw materials in parts by weight:

[0036] 42 parts of acrylate rubber, 26 parts of natural rubber, 17 parts of tetrafluoroethylene-hexafluoropropylene copolymer, 12 parts of boron fiber, 10 parts of nano sepiolite, 5 parts of flame retardant, 17 parts of methyl silicone oil, plasticizer 14 parts, 1.1 parts of antioxidant, 1 part of double pentasulfurizing agent, 3 parts of coupling agent and 1 part of accelerator.

[0037] The flame retardant is flame retardant PDSPB.

[0038] Described plasticizer is dioctyl phthalate.

[0039] Described antioxidant is antioxidant CA.

[0040] The coupling agent is silane coupling agent KH560.

[0041] The accelerator is triallyl isocyanurate.

[0042] The preparation method of above-mentioned high-temperature-resistant rubber gasket, comprises the following steps:

[0043] (1) Put acrylate rubber, natural rubber, and tetrafluoroethylene-hexafluorop...

Embodiment 3

[0047] A high-temperature-resistant rubber sealing gasket is prepared from the following raw materials in parts by weight:

[0048] 43 parts of acrylate rubber, 28 parts of natural rubber, 19 parts of tetrafluoroethylene-hexafluoropropylene copolymer, 14 parts of boron fiber, 10 parts of nano sepiolite, 6 parts of flame retardant, 18 parts of methyl silicone oil, plasticizer 16 parts, 1.2 parts of antioxidant, 2 parts of double pentasulfurizing agent, 5 parts of coupling agent and 1 part of accelerator.

[0049] The flame retardant is flame retardant PDSPB.

[0050] Described plasticizer is dibutyl phthalate.

[0051] Described antioxidant is antioxidant 168.

[0052] The coupling agent is silane coupling agent KH570.

[0053] The accelerator is triallyl isocyanurate.

[0054] The preparation method of above-mentioned high-temperature-resistant rubber gasket, comprises the following steps:

[0055] (1) Put acrylate rubber, natural rubber, and tetrafluoroethylene-hexafluor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Shore hardnessaaaaaaaaaa
tensile strengthaaaaaaaaaa
compression ratioaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-temperature-resistant rubber gasket and a preparation method thereof. The gasket is prepared from the following raw materials in parts by weight: 40-50 parts of acrylic rubber, 25-40 parts of natural rubber, tetrafluoroethylene- 15-25 parts of hexafluoropropylene copolymer, 10-20 parts of boron fiber, 8-15 parts of nano sepiolite, 5-10 parts of flame retardant, 15-30 parts of methyl silicone oil, 12-25 parts of plasticizer, 1-1.5 parts of antioxidant, 1-5 parts of double pentasulfurizing agent, 2-8 parts of coupling agent and 0.5-3 parts of accelerator. The obtained high-temperature-resistant rubber gasket has proper hardness, high strength, excellent oil resistance and high-temperature resistance, is not easy to be compressed, and has good resilience.

Description

technical field [0001] The invention belongs to the technical field of sealing materials, and in particular relates to a high-temperature-resistant rubber sealing gasket and a preparation method thereof. Background technique [0002] In recent years, more and more high-temperature pressure pipelines are used for oil pipelines. Rubber gaskets are often used to seal between high-temperature flanges on pipelines. Rubber gaskets are required to have excellent heat-aging resistance, oil resistance, and high-temperature resistance. Under the conditions of use, the sealing effect is poor, and a gap is easily formed between the rubber pad and the flange, resulting in loosening and leakage problems at the pipe connection. Therefore, it is of great significance to develop a high-performance high-temperature-resistant rubber gasket. [0003] The Chinese invention patent with the notification number CN102993682B discloses a high-performance epichlorohydrin rubber gasket. The parts by w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/04C08L7/00C08L27/18C08L83/04C08L85/02C08K13/04C08K7/06C08K7/26
CPCC08K2201/011C08L33/04C08L2201/02C08L2201/08C08L2205/035C08L7/00C08L27/18C08L83/04C08L85/02C08K13/04C08K7/06C08K7/26
Inventor 王晓张清沙淼李晨贺张丰林杨志全胡晓波王媛媛
Owner XICHUAN COUNTY POWER BUREAU