Leather cup rubber for laundry machine and preparation method thereof

A washing machine and rubber technology, which is applied in the field of washing machine cup rubber and its preparation, can solve the problems of reduced sealing performance, poor low temperature resistance, and poor electrical performance, and achieve the effects of improving dispersibility, improving comprehensive performance, and good processability

Inactive Publication Date: 2013-05-15
WUHU HENGKUN AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, the main material of the production of rubber cups is mostly raw rubber nitrile rubber, which has excellent oil resistance, high wear resistance, good heat resistance, and strong adhesion, but its resistance Poor low t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] First, weigh the following raw materials (kg) according to the formula requirements: nitrile rubber 35, chlorosulfonated polyethylene rubber 25, EPDM 5962 (Germany Lanxess) 24, fluorine rubber 12, natural rubber 4, high wear-resistant carbon Black N330 25, modified white carbon black 12, zirconia 3, modified tree ash 9, attapulgite 5, sepiolite 5, modified iron tailings slag powder 10, stearic acid 0.7, isocyanate 0.7, accelerator DM0 .3. Accelerator BZ 0.5 0.6, stearic acid 2, zinc oxide 4, ferrocene 0.3, polyethylene wax 1, antioxidant DSTP1.5, antioxidant NBC 1.5, γ-methacryloxypropyl Trimethoxysilane 2, triethyl citrate 18.

[0026] The preparation method comprises the following steps:

[0027] (1) Preparation method of modified tree ash:

[0028] Add 1-2% sericin powder of tree ashes weight to tree ashes and mix, soak with 15-20% hydrochloric acid for 1-2 hours, wash with water until neutral, after drying, add 0.5-1.0 % aluminate coupling agent DL-411, 1-2% sod...

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PUM

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Abstract

The invention discloses leather cup rubber for a laundry machine. The leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of chlorosulfonated polyethylene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber, 20-30 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of zirconia, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of isocyanate, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BZ, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of polyethylene wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent NBC, 2-3 parts of gamma-methacryloxypropyl trimethoxysilane and 16-18 parts of triethyl citrate. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.

Description

technical field [0001] The invention relates to the field of synthetic rubber, in particular to a washing machine cup rubber and a preparation method thereof. Background technique [0002] Rubber cups mainly refer to rubber seals used in hydraulic brake systems, clutch control systems, and booster pump systems of cars, light vehicles, vans, and some trucks to transmit pressure and seal. Rubber cups are also used in household appliances, such as the rubber cups used on the cylinder body of a double-tub washing machine to seal the cylinder body. Rubber cups are one of the rubber products with wide application and important functions in rubber products. [0003] Main features of rubber cups: [0004] 1) The cups in the master cylinder and wheel cylinder must have certain elasticity, compression deformation and wear resistance, so as to ensure that the cups have a certain return ability and sealing ability to transmit hydraulic pressure during use. 2) It has good resistance ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L23/34C08L23/16C08L27/12C08L7/00C08K13/06C08K9/02C08K9/04C08K3/04C08K3/36C08K3/22C08K3/34C08K5/11
Inventor 夏坤财
Owner WUHU HENGKUN AUTO PARTS
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