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NBR (Nitrile-Butadiene Rubber) rubber sealing piece material for garbage disposal device and preparation method of NBR rubber sealing piece material

A technology for rubber seals and garbage disposers, applied in the fields of NBR rubber seal materials and their preparation, NBR rubber seal materials for garbage disposers and their preparation, can solve the problems that cannot be satisfied at the same time, and achieve low compression set, The effect of improving uniformity

Inactive Publication Date: 2014-04-16
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to overcome the relative tensile strength of 40-degree nitrile butyronitrile in the prior art which is 7MPa and cannot simultaneously satisfy the properties of 19 kinds of common liquids and mixture liquids (chemical mixtures, acid-base substances, etc.) in garbage disposers, and provides a A kind of NBR rubber seal material and preparation method thereof for garbage disposer, the vulcanized 40-degree nitrile rubber rubber material of the present invention can not only meet the tensile strength greater than or equal to 10MPa (generally the 40-degree nitrile rubber strength requirement is not greater than 7MPa), And it can also meet the technical index requirements of the automotive rubber product classification system standard ASTMD2000M2BG410A14B14EA14EO14E034 (that is, the hardness is 40 Shore A, the tensile strength is greater than or equal to 10MPa, high temperature resistance, ASTM1#&ASTM3# standard test oil, water resistance), and more importantly, It can meet the performance requirements of 19 kinds of common liquids and mixture liquids (chemical mixtures, acid and alkali substances, etc.) in garbage disposers and is environmentally friendly

Method used

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  • NBR (Nitrile-Butadiene Rubber) rubber sealing piece material for garbage disposal device and preparation method of NBR rubber sealing piece material
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  • NBR (Nitrile-Butadiene Rubber) rubber sealing piece material for garbage disposal device and preparation method of NBR rubber sealing piece material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of NBR rubber seal material for garbage disposer of this example, its specific components and proportioning are as follows: 100 parts of nitrile rubber, 5 parts of zinc oxide, 1 part of stearic acid, antioxidant RD (2,2,4- Trimethyl-1,2-dihydroquinoline polymer) is 2 parts, antioxidant MB (2-mercaptobenzimidazole) is 1 part, microcrystalline wax is 2 parts, and quick extruding carbon black N550 is 20 parts, Di[2-(2-butoxyethoxy)ethyl adipate] (TP-95 for short) is 10 parts, accelerator TMTD is 1.125 parts, accelerator CZ is 1.125 parts, vulcanizing agent DTDM is 2.35 parts , 0.36 parts of vulcanizing agent sulfur powder.

[0027] The nitrile rubber in this example is produced by Lanxess Chemical Company M3340F nitrile rubber; zinc oxide is the indirect zinc oxide produced by Zhenjiang Baishui Chemical Co., Ltd.; stearic acid is produced by Malaysia Southern Oil Company; anti-aging agent RD (2,2,4-trimethyl-1,2- Hydroquinoline polymer) and TP-95 suppliers are Sh...

Embodiment 2

[0042] A kind of NBR rubber seal material for garbage disposer of the present example, its specific components and proportioning are as follows: 100 parts of nitrile rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, antioxidant RD (2,2,4- Trimethyl-1,2-dihydroquinoline polymer) is 1.2 parts, antioxidant MB (2-mercaptobenzimidazole) is 0.6 parts, microcrystalline wax is 1.2 parts, and quick extrusion carbon black N550 is 30 parts, Di[2-(2-butoxyethoxy) ethyl adipate] (TP-95) is 15 parts, accelerator TMTD is 1.2 parts, accelerator CZ is 1.2 parts, vulcanizing agent DTDM is 2.35 parts, Vulcanizing agent sulfur powder 0.36 parts.

[0043] A kind of preparation method of NBR rubber seal material for garbage disposer of the present invention, its steps are:

[0044] (1) Masterbatch mixing:

[0045] One-stage mixing: put the nitrile rubber in an internal mixer for 80 seconds, then add zinc oxide, stearic acid and anti-aging agent RD (2,2,4-trimethyl-1,2-dihydroquinoline Po...

Embodiment 3

[0057] A kind of NBR rubber seal material for garbage disposer of the present example, its specific components and proportioning are as follows: 100 parts of nitrile rubber, 5 parts of zinc oxide, 1.5 parts of stearic acid, antioxidant RD (2,2,4- Trimethyl-1,2-dihydroquinoline polymer) is 0.8 parts, antioxidant MB (2-mercaptobenzimidazole) is 0.4 parts, microcrystalline wax is 0.8 parts, and quick extrusion carbon black N550 is 35 parts, Di[2-(2-butoxyethoxy) ethyl adipate] (TP-95) is 18 parts, accelerator TMTD is 1.25 parts, accelerator CZ is 1.25 parts, vulcanizing agent DTDM is 2.35 parts, Vulcanizing agent sulfur powder 0.36 parts.

[0058] A kind of preparation method of NBR rubber seal material for garbage disposer of the present invention, its steps are:

[0059] (1) Masterbatch mixing:

[0060] One-stage mixing: Put nitrile rubber in an internal mixer for 60 seconds, then add zinc oxide, stearic acid and anti-aging agent RD (2,2,4-trimethyl-1,2-dihydroquinoline Poly...

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Abstract

The invention discloses an NBR (Nitrile-Butadiene Rubber) rubber sealing piece material for a garbage disposal device and a preparation method of the NBR rubber sealing piece material and belongs to the field of rubber preparation. The NBR rubber sealing piece material comprises following components in parts by weight: 100 parts of butadiene-acrylonitrile rubber, 1-1.5 parts of a plasticizer, 5 parts of an active agent, 2-5 parts of an anti-aging agent, 20-35 parts of carbon black, 10-18 parts of a softening plasticizer, 2.25-2.5 parts of an accelerant and 2.71 parts of a vulcanizing agent. According to the NBR rubber sealing piece material, a vulcanized 40-degree butadiene-acrylonitrile rubber material not only can meet the requirement that the tensile strength is greater than or equal to 10MPa, but can also meet the technical index requirements of a car rubber product classification system standard ASTMD2000M2BG410A14B14EA14EO14E034; more importantly, the NBR rubber sealing piece material can also meet liquid performance requirements of 19 types of common various types of liquid and mixtures in the garbage disposal device.

Description

technical field [0001] The invention relates to rubber preparation technology, in particular to an NBR rubber seal material for a garbage disposer and a preparation method thereof, which is an NBR rubber seal material that can withstand various liquids and mixtures common in garbage disposers and its preparation method. Background technique [0002] When the hardness of nitrile rubber is 40 degrees, the general strength requirement is not greater than 7MPa. At that time, the garbage disposer newly developed by Emerson Electric Company of the United States urgently needed a hardness of 40 degrees, tensile strength greater than or equal to 10MPa and resistance to 19 kinds of garbage disposers. Commonly used rubber seal rings for various liquids and mixtures have strict requirements on 40-degree nitrile rubber, which is difficult to meet. When the hardness is 40 degrees, the tensile strength is greater than or equal to 10 MPa and it must be resistant to 19 common types of garba...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/02C08K5/09C08K3/22C08K3/04C08K5/11C08K5/3437C08K5/37B29C35/02B29B7/00
Inventor 徐海潮吴会会
Owner 南京金三力橡塑有限公司