CN105400051A - Environment-friendly migration-resistant refrigerator door sealing strip - Google Patents
Environment-friendly migration-resistant refrigerator door sealing strip Download PDFInfo
- Publication number
- CN105400051A CN105400051A CN201510960673.6A CN201510960673A CN105400051A CN 105400051 A CN105400051 A CN 105400051A CN 201510960673 A CN201510960673 A CN 201510960673A CN 105400051 A CN105400051 A CN 105400051A
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- migration
- refrigerator door
- sealing strip
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an environment-friendly migration-resistant refrigerator door sealing strip. The environment-friendly migration-resistant refrigerator door sealing strip comprises, by weight, 30 to 40 parts of polyethylene, 15 to 20 parts of ethylene-vinyl acetate copolymer, 20 to 30 parts of silicone rubber, 10 to 15 parts of a filling material, 1 to 3 parts of calcium zinc composite heat stabilizer, 3 to 5 parts of a plasticizer, 5 to 8 parts of an anti-oxidant, 0.5 to 2 parts of sulphur, 0.5 to 1 part of a vulcanization accelerator, 0.5 to 1 part of zinc stearate, and 1 to 3 parts of a functional accessory ingredient. Base material performance is improved, adding amount of auxiliary agents is reduced, and a problem that migration resistance of sealing rubber strips is poor is solved fundamentally via scientific formula design; and the environment-friendly migration-resistant refrigerator door sealing strip possesses excellent mechanical properties, migration resistance, and comprehensive properties, is safe, is friendly to the environment, is soft in texture, and is a novel refrigerator door sealing strip.
Description
Technical field
The present invention relates to sealed strip field, particularly relate to a kind of environment-friendly type anti-migration refrigerator door sealing strip.
Background technology
In the door body structure of the refrigerator such as single open-door or double door, usually need, around door body, joint strip is installed.Along with the concern of people to health and the development of refrigerator industry, the requirement of people to refrigerator part is more and more higher, especially to the environmental-protecting performance of seal strip for refrigerator door, except requiring mechanical property, also should possess additive and not moving, the performances such as additive safety non-toxic.
But current refrigerator theft sealing rubber strip mostly adopts polyvinyl chloride resin matrix, and add a large amount of auxiliary agents and be prepared from, because polyvinyl chloride resin is very hard, in the course of processing, usually need to add a large amount of softening agent, tenderizer etc. add auxiliary agent to improve its processing characteristics, even if additive therefor is nontoxic additive, but because its addition strengthens, be difficult to control its migration.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of environment-friendly type anti-migration refrigerator door sealing strip, can solve the problems referred to above that current refrigerator door weather strip exists on raw material.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of environment-friendly type anti-migration refrigerator door sealing strip, comprise following parts by weight of component: polyethylene 30 ~ 40 parts, ethylene-vinyl acetate copolymer 15 ~ 20 parts, 20 ~ 30 parts, silicon rubber, filler 10 ~ 15 parts, Ca-Zn composite heat stabilizer 1 ~ 3 part, 3 ~ 5 parts, softening agent, 5 ~ 8 parts, oxidation inhibitor, 0.5 ~ 2 part, sulphur, vulcanization accelerator 0.5 ~ 1 part, Zinic stearas 0.5 ~ 1 part, functional agent 1 ~ 3 part.
In a preferred embodiment of the present invention, described functional agent comprises photostabilizer and biocide mildewcide.
In a preferred embodiment of the present invention, in described ethylene-vinyl acetate copolymer, the content of vinyl acetate between to for plastic is 50 ~ 60%.
In a preferred embodiment of the present invention, described silicon rubber is methyl vinyl silicone rubber.
In a preferred embodiment of the present invention, described filler is the mixture that nano silicon and nano-tourmaline powder mix with weight ratio 3 ~ 5:1.
In a preferred embodiment of the present invention, described softening agent is the mixture that tricresyl phosphite isooctyl acrylate and poly-hexanodioic acid-1,2-PD ester mix with the ratio of mass ratio 1 ~ 2:1.
The invention has the beneficial effects as follows: a kind of environment-friendly type anti-migration of the present invention refrigerator door sealing strip, by the formulating of recipe of science, improve the performance of body material, effectively reduce the addition of auxiliary agent, fundamentally row solves the problem of seal gum ability of resisting to migration difference, there is excellent in mechanical performance, safety and environmental protection, quality is soft, the advantages such as resistance to migration is good, excellent combination property is the innovation of refrigerator door joint strip.
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.
The embodiment of the present invention comprises:
Embodiment 1
A kind of environment-friendly type anti-migration refrigerator door sealing strip, comprises following parts by weight of component: polyethylene 30 parts, ethylene-vinyl acetate copolymer (EVA) 15 parts, methyl vinyl silicone rubber 20 parts, filler 10 parts, Ca-Zn composite heat stabilizer 1 part, 3 parts, softening agent, 5 parts, oxidation inhibitor, 0.5 part, sulphur, vulcanization accelerator 0.5 part, Zinic stearas 0.5 part, functional agent 1 part; Wherein, in described EVA, the content of vinyl acetate between to for plastic is 50 ~ 60%; Described filler is the mixture that nano silicon and nano-tourmaline powder mix with weight ratio 3:1; Described in the mixture that described softening agent mixes with the ratio of mass ratio 1:1 for tricresyl phosphite isooctyl acrylate and poly-hexanodioic acid-1,2-PD ester, functional agent comprises photostabilizer and biocide mildewcide.
Embodiment 2
A kind of environment-friendly type anti-migration refrigerator door sealing strip, comprises following parts by weight of component: polyethylene 40 parts, ethylene-vinyl acetate copolymer (EVA) 20 parts, methyl vinyl silicone rubber 30 parts, filler 15 parts, Ca-Zn composite heat stabilizer 3 parts, 5 parts, softening agent, 8 parts, oxidation inhibitor, 2 parts, sulphur, vulcanization accelerator 1 part, Zinic stearas 1 part, functional agent 3 parts; Wherein, in described EVA, the content of vinyl acetate between to for plastic is 50 ~ 60%; Described filler is the mixture that nano silicon and nano-tourmaline powder mix with weight ratio 5:1; Described softening agent is the mixture that tricresyl phosphite isooctyl acrylate and poly-hexanodioic acid-1,2-PD ester mix with the ratio of mass ratio 2:1; Described functional agent comprises photostabilizer and biocide mildewcide.
The preparation method of above-mentioned joint strip is:
In Banbury mixer, control banburying temperature in the scope of 40 ~ 80 DEG C, by the polyethylene of formula ratio, ethylene-vinyl acetate copolymer (EVA) and methyl vinyl silicone rubber, first become mixed matrix with the speed low speed mixing 5 ~ 8min of 10 ~ 15r/min, then the Ca-Zn composite heat stabilizer of formula ratio, oxidation inhibitor, softening agent, filler, Zinic stearas and functional agent is added, with the speed banburying of 20 ~ 50r/min mixing 10 ~ 30min to even; Finally taken out from Banbury mixer by mixture, refining is opened in two roller mill, make its bag roller, successively add vulcanization accelerator and sulphur, after mixing, adjustment roll spacing bottom sheet, puts into mould after ageing, uses vulcanizing press compression molding.
Above-mentioned environment-friendly type anti-migration refrigerator door sealing strip, with the matrix of asepsis environment-protecting and auxiliary agent for raw material, used in combination by multiple matrix, effectively reduce the quantity of polyvinyl chloride resin additive, thus the anti-resistance to migration energy of the effective seal gum controlled, after tested, its elongation at break is 360 ~ 420% to the sealed strip of described preparation, and tensile strength is 11 ~ 14MPa; Resistance to migration is for being less than 3.5mg, and surface quality is good, and smooth pliable mildew-resistant grade is 0 grade, and germicidal levels is 1 grade.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. an environment-friendly type anti-migration refrigerator door sealing strip, is characterized in that, comprises following parts by weight of component:
Polyethylene 30 ~ 40 parts, ethylene-vinyl acetate copolymer 15 ~ 20 parts, 20 ~ 30 parts, silicon rubber, filler 10 ~ 15 parts, Ca-Zn composite heat stabilizer 1 ~ 3 part, 3 ~ 5 parts, softening agent, 5 ~ 8 parts, oxidation inhibitor, 0.5 ~ 2 part, sulphur, vulcanization accelerator 0.5 ~ 1 part, Zinic stearas 0.5 ~ 1 part, functional agent 1 ~ 3 part.
2. environment-friendly type anti-migration refrigerator door sealing strip according to claim 1, it is characterized in that, described functional agent comprises photostabilizer and biocide mildewcide.
3. environment-friendly type anti-migration refrigerator door sealing strip according to claim 1, is characterized in that, in described ethylene-vinyl acetate copolymer, the content of vinyl acetate between to for plastic is 50 ~ 60%.
4. environment-friendly type anti-migration refrigerator door sealing strip according to claim 1, is characterized in that, described silicon rubber is methyl vinyl silicone rubber.
5. environment-friendly type anti-migration refrigerator door sealing strip according to claim 1, is characterized in that, described filler is the mixture that nano silicon and nano-tourmaline powder mix with weight ratio 3 ~ 5:1.
6. environment-friendly type anti-migration refrigerator door sealing strip according to claim 1, is characterized in that, described softening agent is the mixture that tricresyl phosphite isooctyl acrylate and poly-hexanodioic acid-1,2-PD ester mix with the ratio of mass ratio 1 ~ 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510960673.6A CN105400051A (en) | 2015-12-21 | 2015-12-21 | Environment-friendly migration-resistant refrigerator door sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510960673.6A CN105400051A (en) | 2015-12-21 | 2015-12-21 | Environment-friendly migration-resistant refrigerator door sealing strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105400051A true CN105400051A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510960673.6A Pending CN105400051A (en) | 2015-12-21 | 2015-12-21 | Environment-friendly migration-resistant refrigerator door sealing strip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733080A (en) * | 2016-05-14 | 2016-07-06 | 李文东 | Elastic refrigerator door sealing strip |
| CN107057361A (en) * | 2017-05-17 | 2017-08-18 | 安徽万朗磁塑股份有限公司 | A kind of thermoplastic vulcanizates silicon rubber refrigerator sealing strip material |
| CN110951264A (en) * | 2019-12-12 | 2020-04-03 | 西安中科贝昂环保科技有限公司 | Environment-friendly rubber material for refrigerator and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962741A (en) * | 2005-11-09 | 2007-05-16 | 无锡市沪安电线电缆有限公司 | Silane cross-linked polyolefin cable material |
| CN103725015A (en) * | 2013-12-16 | 2014-04-16 | 芜湖万润机械有限责任公司 | Seal ring material for automobile engine |
| CN103756075A (en) * | 2013-12-19 | 2014-04-30 | 河北瑞威科技有限公司 | Method for preparation of thermoplastic elastomer from waste rubber and waste plastics |
-
2015
- 2015-12-21 CN CN201510960673.6A patent/CN105400051A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962741A (en) * | 2005-11-09 | 2007-05-16 | 无锡市沪安电线电缆有限公司 | Silane cross-linked polyolefin cable material |
| CN103725015A (en) * | 2013-12-16 | 2014-04-16 | 芜湖万润机械有限责任公司 | Seal ring material for automobile engine |
| CN103756075A (en) * | 2013-12-19 | 2014-04-30 | 河北瑞威科技有限公司 | Method for preparation of thermoplastic elastomer from waste rubber and waste plastics |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733080A (en) * | 2016-05-14 | 2016-07-06 | 李文东 | Elastic refrigerator door sealing strip |
| CN107057361A (en) * | 2017-05-17 | 2017-08-18 | 安徽万朗磁塑股份有限公司 | A kind of thermoplastic vulcanizates silicon rubber refrigerator sealing strip material |
| CN110951264A (en) * | 2019-12-12 | 2020-04-03 | 西安中科贝昂环保科技有限公司 | Environment-friendly rubber material for refrigerator and preparation method thereof |
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Application publication date: 20160316 |