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Oil-resistant, acid-resistant and alkali-resistant rubber lining composition and preparation method thereof

A technology of acid and alkali resistance and rubber lining, applied in the field of rubber, can solve the problems of difficult to meet the needs of use, poor acid and alkali resistance, etc., and achieve the effect of low cost, easy to obtain components and simple process

Active Publication Date: 2020-12-04
上海凯驰防腐工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the existing rubber which is poor in acid and alkali resistance and difficult to meet the current use requirements, and to provide an oil-resistant rubber with excellent acid and alkali resistance

Method used

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  • Oil-resistant, acid-resistant and alkali-resistant rubber lining composition and preparation method thereof
  • Oil-resistant, acid-resistant and alkali-resistant rubber lining composition and preparation method thereof
  • Oil-resistant, acid-resistant and alkali-resistant rubber lining composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an oil-resistant, acid-resistant and alkali-resistant rubber lining composition, the steps are as follows:

[0027] (1) 60 parts by weight of acrylonitrile-butadiene rubber, 10 parts by weight of EPDM, and 5 parts by weight of chloroprene rubber are placed in a banbury mixer and masticated evenly;

[0028] (2) Add 40 parts by weight of carbon black, 10 parts by weight of kaolin, 10 parts by weight of calcium carbonate, 10 parts by weight of diatomaceous earth, 5 parts by weight of barium sulfate, 5 parts by weight of dioctyl phthalate, 5 parts by weight of synthetic plant After ester, 5 parts by weight of paraffin, 2 parts by weight of anti-aging agent RD and 2 parts by weight of anti-aging agent SP, knead at a speed of 25-30 rpm until the glue temperature is 90 °C;

[0029] (3) Add 1 part by weight of accelerator CZ, 1 part by weight of accelerator DM, 1 part by weight of accelerator M, 1 part by weight of accelerator TMTD, 1 part by weight of s...

Embodiment 2

[0038] A preparation method of an oil-resistant, acid-resistant and alkali-resistant rubber lining composition, the steps are as follows:

[0039] (1) 100 parts by weight of acrylonitrile-butadiene rubber, 30 parts by weight of EPDM, and 15 parts by weight of chloroprene rubber are placed in a banbury mixer and masticated evenly;

[0040] (2) Add 20 parts by weight of carbon black, 20 parts by weight of kaolin, 10 parts by weight of calcium carbonate, 10 parts by weight of diatomaceous earth, 10 parts by weight of barium sulfate, 10 parts by weight of dioctyl phthalate, 10 parts by weight of synthetic plant After ester, 10 parts by weight of paraffin, 2 parts by weight of anti-aging agent RD and 2 parts by weight of anti-aging agent SP, knead at a speed of 25-30 rpm until the glue temperature is 90 °C;

[0041] (3) Add 0.5 parts by weight accelerator CZ, 0.1 parts by weight accelerator DM, 0.2 parts by weight accelerator M, 0.1 parts by weight accelerator TMTD, 5 parts by weig...

Embodiment 3

[0044] A preparation method of an oil-resistant, acid-resistant and alkali-resistant rubber lining composition, the steps are as follows:

[0045] (1) 80 parts by weight of nitrile rubber, 20 parts by weight of EPDM, and 20 parts by weight of chloroprene rubber are placed in a banbury mixer and masticated evenly;

[0046] (2) Add 30 parts by weight of carbon black, 10 parts by weight of kaolin, 10 parts by weight of calcium carbonate, 10 parts by weight of diatomaceous earth, 10 parts by weight of barium sulfate, 10 parts by weight of dioctyl phthalate, 10 parts by weight of synthetic plant After ester, 10 parts by weight of paraffin, 2 parts by weight of anti-aging agent RD and 2 parts by weight of anti-aging agent SP, knead at a speed of 25-30 rpm until the glue temperature is 90 °C;

[0047] (3) Add 1 part by weight of accelerator CZ, 1 part by weight of accelerator DM, 1 part by weight of accelerator M, 0.5 parts by weight of accelerator TMTD, 3 parts by weight of sulfur a...

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Abstract

The invention discloses an oil-resistant, acid-resistant and alkali-resistant rubber lining composition and a preparation method thereof. The oil-resistant, acid-resistant and alkali-resistant rubberlining composition comprises the following raw materials in parts by weight: 60-100 parts of nitrile rubber, 10-30 parts of ethylene propylene diene monomer, 5-15 parts of chloroprene rubber, 20-40 parts of a reinforcing agent, 50-80 parts of filler, 1-5 parts of sulfur and 1-5 parts of an accelerant. The preparation method comprises the following steps: uniformly plastifying the nitrile rubber, the ethylene propylene diene monomer and the chloroprene rubber in an internal mixer; adding a reinforcing agent, a filler and an anti-aging agent, and conducting mixing at a rotating speed of 25-30 rpm until the rubber temperature is 90 DEG C; adding an accelerant and sulfur, conducting mixing at a rotating speed of 25-30 rpm until the rubber temperature is 110 DEG C, discharging the rubber material from the internal mixer to an open mill, and conducting uniform mixing and filtering; and conducting cooling and extruding to form a rubber plate, and conducting vulcanizing at 138 DEG C and 0.4 Mpa to obtain the rubber lining composition. The rubber lining composition disclosed by the invention is excellent in acid, alkali and oil resistance; The preparation method is simple in process.

Description

technical field [0001] The invention belongs to the technical field of rubber, and relates to an oil-resistant, acid-resistant and alkali-resistant rubber lining composition and a preparation method thereof. Background technique [0002] Nitrile rubber has good oil resistance, its oil resistance is second only to polysulfide rubber and fluorine rubber, and it has relatively good wear resistance and air tightness, and its heat resistance is better than that of styrene-butadiene rubber and neoprene rubber. It maintains performance for a long time, and its airtightness is second only to butyl rubber. The existing nitrile rubber is widely used due to its above performance characteristics (good oil resistance and air tightness), and can be used as internal lining materials such as chemical storage tanks and chemical pipelines. However, due to the application scene of the chemical industry, the existing rubber (Including nitrile rubber) acid and alkali resistance is not good, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/16C08L11/00C08L91/06C08K13/04C08K3/06C08K3/04C08K7/26C08K3/34C08K3/26C08K3/30C08K5/12
CPCC08L9/02C08L2205/035C08K2003/265C08K2003/3045C08L23/16C08L11/00C08L91/06C08K13/04C08K3/06C08K3/04C08K7/26C08K3/346C08K3/26C08K3/30C08K5/12
Inventor 刘李意朱友霞封沙
Owner 上海凯驰防腐工程有限公司