CN104448586A - Rubber door sealing ring for washing machine - Google Patents
Rubber door sealing ring for washing machine Download PDFInfo
- Publication number
- CN104448586A CN104448586A CN201410730930.2A CN201410730930A CN104448586A CN 104448586 A CN104448586 A CN 104448586A CN 201410730930 A CN201410730930 A CN 201410730930A CN 104448586 A CN104448586 A CN 104448586A
- Authority
- CN
- China
- Prior art keywords
- parts
- washing machine
- door seal
- seal circle
- rubber door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention discloses a rubber door sealing ring for a washing machine. The rubber door sealing ring is produced by using raw materials including a base material, a reinforcing and filling system, a softening agent, a colorant, a processing aid, a curing system and a protection system, wherein ethylene-propylene-diene rubber is used as the base material; silicate is used as the reinforcing and filling system; the softening agent comprises white oil, resin and paraffin; a color masterbatch is used as the colorant; the processing acid comprises a fatty acid emulsifier, fatty acid and calcium oxide; the curing system comprises 2-mercaptobenzothiazole, dipentamethylenethiuram tetrasulfide and 4, 4'-dithiodimorpholine; and the protection system comprises 2-benzimidazolethiol. Sulphur is replaced with 2-mercaptobenzothiazole, dipentamethylenethiuram tetrasulfide and 4, 4'-dithiodimorpholine to cure, so that the effects of avoiding direct sulphur reaction, eliminating the hidden danger of curing reversion and prolonging the service life of the door sealing ring are achieved during high-temperature curing and thermo-oxidative ageing; and meanwhile, a nano-scale flake-like silicate substance is used as the reinforcing and filling system, so that the mechanical and physical properties of the rubber door sealing ring can be remarkably improved.
Description
Technical field
the present invention relates to rubber item, particularly a kind of washing machine rubber door seal circle.
Background technology
at present, the formulating of recipe of rubber item is most important link in the production of rubber industry, and its concrete formula determines the physical property of rubber item, function, life-span and productive quality, and this is the most important problem of rubber industry exchange of technology.And washing machine door seal is the core part of tumbling-box washing machine, be directly connected to quality and the life-span of whole washing machine, therefore very harsh to the technical requirements of door seal, to outward appearance, physical property, there is strict standard work-ing life, as hardness, tensile strength, elongation, tension set, tear strength, abrasion, acid and alkali-resistance, color inhibition, oil-proofness, ozone resistance, germ resistance and environmental protection grade etc. and these performance requriementss all control in small variation range in ten year-end drawdown level rates, formulating of recipe is in the past difficult to reach these requirements, reason is that rubber easily produces reversion phenomenon, this is because the vulcanization system of routine contains a large amount of sulphur, and with the rubber articles very easily reversion of sulfur cross-linking, making rubber progressively lose elasticity causes above-mentioned physical and mechanical properties to decline, surfaces of tacky, breach, the performance of such rubber item, sealing function can be had a greatly reduced quality.
Summary of the invention
the object of this invention is to provide that a kind of ozone resistance is good, physicals is strong, sealing property is strong, the washing machine rubber door seal circle of long service life.
for achieving the above object, the technical solution used in the present invention is: a kind of washing machine rubber door seal circle, and it is raw materials used comprises terpolymer EP rubber, reinforcing and filling system, softening softening agent, tinting material, processing aid, vulcanization system and protection system, described reinforcing and filling system is silicates, and described softening softening agent comprises white oil, resin, paraffin, described tinting material is that look female, and described processing aid comprises fatty acid ester emulsification, lipid acid, calcium oxide, described vulcanization system comprises 2-benzothiazolyl mercaptan, tetra-sulfurized pair pentamethylene thiuram, 4,4'-dimorpholinyl disulfide, described protection system is 2-mercaptobenzimidazole, and the weight ratio of each component of described washing machine rubber door seal circle is: described terpolymer EP rubber 200 parts, described silicates 80 parts, described white oil 70 parts, described resin 5 parts, 3 parts, described paraffin, described look female 8 parts, described fatty acid ester emulsification 2 ~ 3 parts, 2 ~ 3 parts, described lipid acid, 4 ~ 5 parts, described calcium oxide, described 2-benzothiazolyl mercaptan 1.5 parts, described tetra-sulfurized pair pentamethylene thiuram 1 part, described 4,4'-dimorpholinyl disulfide 3 parts, described 2-mercaptobenzimidazole 1.5 ~ 2 parts.
preferably, during described washing machine rubber door seal circle is raw materials used, described fatty acid ester emulsification is 3 parts, described lipid acid is 3 parts, 5 parts, described calcium oxide.
further preferably, during described washing machine rubber door seal circle is raw materials used, described 2-mercaptobenzimidazole is 2 parts.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: washing machine rubber door seal circle of the present invention, have employed material based on terpolymer EP rubber, with the addition of reinforcing and filling system, softening softening agent, tinting material, processing aid, vulcanization system and protection system, wherein have employed 2-benzothiazolyl mercaptan, tetra-sulfurized pair pentamethylene thiuram and, 4 '-dimorpholinyl disulfide instead of sulfur cross-linking, achieve nonsulfur vulcanization, ensure that when high temperature vulcanized and thermo-oxidative ageing, avoid sulphur direct reaction, stop the hidden danger of reversion, and adopt silicates material as reinforcing and filling system, effectively can improve the mechanical and physical performance of door seal circle, extend the work-ing life of door seal circle.
Embodiment
below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
a kind of washing machine rubber door seal circle of the present invention, it is raw materials used comprises terpolymer EP rubber, reinforcing and filling system, softening softening agent, tinting material, processing aid, vulcanization system and protection system, wherein: reinforcing and filling system is silicates, softening softening agent comprises white oil, resin, paraffin, tinting material is that look female, processing aid comprises fatty acid ester emulsification, lipid acid, calcium oxide, vulcanization system comprises 2-benzothiazolyl mercaptan, tetra-sulfurized pair pentamethylene thiuram, 4,4'-dimorpholinyl disulfide, protection system is 2-mercaptobenzimidazole.The weight ratio of each component of this rubber door seal circle is: terpolymer EP rubber 200 parts, silicates 80 parts, white oil 70 parts, resin 5 parts, 3 parts, paraffin, look female 8 parts, fatty acid ester emulsification 2 ~ 3 parts, 2 ~ 3 parts, lipid acid, 4 ~ 5 parts, calcium oxide, 2-benzothiazolyl mercaptan 1.5 parts, tetra-sulfurized pair pentamethylene thiuram 1 part, 4,4'-dimorpholinyl disulfide 3 parts, 2-mercaptobenzimidazole 1.5 ~ 2 parts.
in the present embodiment, what reinforcing and filling system adopted is the silicates material of nano-grade, can significantly improve the mechanical and physical performance of rubber door seal circle; And the paraffin used in softening softening agent be by the positive structure isomery paraffin of suitable proportion and microcrystalline wax formulated, its molecular weight distribution is wide, molecular-weight average is high, therefore the temperature of its migration is different with speed, product surface can be ensured for a long time not by the attack of ozone in air, extend the work-ing life of door seal circle.
preferably, during described washing machine rubber door seal circle is raw materials used, fatty acid ester emulsification is 3 parts, lipid acid is 3 parts, 5 parts, calcium oxide.
further preferably, during described washing machine rubber door seal circle is raw materials used, described protection system 2-mercaptobenzimidazole is 2 parts.
in sum, washing machine rubber door seal circle of the present invention, have employed material based on terpolymer EP rubber, with the addition of reinforcing and filling system, softening softening agent, tinting material, processing aid, vulcanization system and protection system, wherein, have employed 2-benzothiazolyl mercaptan, tetra-sulfurized pair pentamethylene thiuram and 4, 4 '-dimorpholinyl disulfide instead of traditional sulphur as vulcanization system and carries out sulfuration, can ensure when high temperature vulcanized and thermo-oxidative ageing, avoid sulphur direct reaction, stop the hidden danger of reversion, extend the work-ing life of door seal circle, adopt nano-grade silicates material as reinforcing and filling system simultaneously, the mechanical and physical performance of rubber door seal circle can be significantly improved.
above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a washing machine rubber door seal circle, is characterized in that, it is raw materials used comprises terpolymer EP rubber, reinforcing and filling system, softening softening agent, tinting material, processing aid, vulcanization system and protection system, described reinforcing and filling system is silicates, and described softening softening agent comprises white oil, resin, paraffin, described tinting material is that look female, and described processing aid comprises fatty acid ester emulsification, lipid acid, calcium oxide, described vulcanization system comprises 2-benzothiazolyl mercaptan, tetra-sulfurized pair pentamethylene thiuram, 4,4'-dimorpholinyl disulfide, described protection system is 2-mercaptobenzimidazole, and the weight ratio of each component of described washing machine rubber door seal circle is: described terpolymer EP rubber 200 parts, described silicates 80 parts, described white oil 70 parts, described resin 5 parts, 3 parts, described paraffin, described look female 8 parts, described fatty acid ester emulsification 2 ~ 3 parts, 2 ~ 3 parts, described lipid acid, 4 ~ 5 parts, described calcium oxide, described 2-benzothiazolyl mercaptan 1.5 parts, described tetra-sulfurized pair pentamethylene thiuram 1 part, described 4,4'-dimorpholinyl disulfide 3 parts, described 2-mercaptobenzimidazole 1.5 ~ 2 parts.
2. washing machine rubber door seal circle according to claim 1, is characterized in that: during described washing machine rubber door seal circle is raw materials used, described fatty acid ester emulsification is 3 parts, described lipid acid is 3 parts, 5 parts, described calcium oxide.
3. washing machine rubber door seal circle according to claim 1 and 2, is characterized in that: during described washing machine rubber door seal circle is raw materials used, described 2-mercaptobenzimidazole is 2 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730930.2A CN104448586B (en) | 2014-12-05 | 2014-12-05 | Rubber door sealing ring for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730930.2A CN104448586B (en) | 2014-12-05 | 2014-12-05 | Rubber door sealing ring for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104448586A true CN104448586A (en) | 2015-03-25 |
| CN104448586B CN104448586B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730930.2A Active CN104448586B (en) | 2014-12-05 | 2014-12-05 | Rubber door sealing ring for washing machine |
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| Country | Link |
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| CN (1) | CN104448586B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466464A (en) * | 2022-10-28 | 2022-12-13 | 江苏冠联新材料科技股份有限公司 | Ethylene propylene diene monomer rubber for washing machine door seal and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746215A (en) * | 2004-09-06 | 2006-03-15 | 刘明辉 | Fire-retardant rubber carpet products |
| CN101250293A (en) * | 2008-03-03 | 2008-08-27 | 浙江绿环橡木有限公司 | Molded rubber clad plate and method for preparing same |
| CN101824189A (en) * | 2010-04-21 | 2010-09-08 | 北京市射线应用研究中心 | Preparation process of ethylene propylene diene rubber foaming materials |
| CN102731893A (en) * | 2012-07-10 | 2012-10-17 | 西安汉华橡胶科技有限公司 | Low-cost high-temperature resistant rubber material and preparation method thereof |
| CN103435917A (en) * | 2013-09-02 | 2013-12-11 | 太仓冠联高分子材料有限公司 | High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof |
-
2014
- 2014-12-05 CN CN201410730930.2A patent/CN104448586B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746215A (en) * | 2004-09-06 | 2006-03-15 | 刘明辉 | Fire-retardant rubber carpet products |
| CN101250293A (en) * | 2008-03-03 | 2008-08-27 | 浙江绿环橡木有限公司 | Molded rubber clad plate and method for preparing same |
| CN101824189A (en) * | 2010-04-21 | 2010-09-08 | 北京市射线应用研究中心 | Preparation process of ethylene propylene diene rubber foaming materials |
| CN102731893A (en) * | 2012-07-10 | 2012-10-17 | 西安汉华橡胶科技有限公司 | Low-cost high-temperature resistant rubber material and preparation method thereof |
| CN103435917A (en) * | 2013-09-02 | 2013-12-11 | 太仓冠联高分子材料有限公司 | High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466464A (en) * | 2022-10-28 | 2022-12-13 | 江苏冠联新材料科技股份有限公司 | Ethylene propylene diene monomer rubber for washing machine door seal and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104448586B (en) | 2017-02-22 |
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