CN101983984A - Elastic body material for refrigerator sealing strips and preparation method thereof - Google Patents
Elastic body material for refrigerator sealing strips and preparation method thereof Download PDFInfo
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- CN101983984A CN101983984A CN2010105078555A CN201010507855A CN101983984A CN 101983984 A CN101983984 A CN 101983984A CN 2010105078555 A CN2010105078555 A CN 2010105078555A CN 201010507855 A CN201010507855 A CN 201010507855A CN 101983984 A CN101983984 A CN 101983984A
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- sealed strip
- elastomer material
- hydrogenated styrene
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- refrigerator
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Abstract
The invention discloses an elastic body material for refrigerator sealing strips and preparation method thereof. The elastic body material for refrigerator sealing strips consists of hydrogenation styrene resin, rubber filling oil, polypropylene, mineral filler, weather resistant agent, compatibilizer and processing aids. The elastic body material for refrigerator sealing strips is manufactured by extrusion graining with counter-rotating twin-screw extruder after the raw material is mixed in high-speed mixer. Halogen material and o-benzene plasticizer which is harmful to human health will not be introduced in practical production process of the elastic body material for refrigerator sealing strips. The thermoplastic elastomer material produced in the invention has the advantages of light weight, high resilience, high welding strength, easy colorizing and good low-temperature resistance. There is no need for the treatment of high temperature sulfidation when extrusion moulding is operated with the above material. Decomposion of toxic gas and corrosion of production equipments will not happen during the process of extrusion moulding, and scraps can be recovered and re-used.
Description
Technical field
The present invention relates to the thermoplastic elastic material field, be specifically related to a kind of refrigerator sealed strip elastomer material and preparation method thereof.
Background technology
The sealed strip product only just can play sealing function under elastic prerequisite, so various for a long time sealed strip product is all continued to use whippy elastomeric material.There is painted difficulty in the elastomeric material of the first-generation, manufacturing procedure complexity, and expendable defective.Very fast elastomeric material is just replaced by s-generation PVC sealing material, the PVC sealing material have low price, production technique simple, can high-efficiency and continuous production etc. advantage, become the main flow materials used of present refrigerator sealed strip.But along with human consumer's requirement more and more higher to quality, the feature of environmental protection of PVC sealed strip, and the hazardous property of the PVC sealed strip course of processing, defective such as lower temperature resistance difference is exaggerated in the use.So thermoplastic elastomer (TPE, Thermoplastic Elastomer), claim thermoplastic elastomer (TPE, Thermoplastic Rubber) again, this novel thermoplastic elastic material becomes the developing direction of third generation refrigerator with sealing strip material.
Relatively with the PVC sealing strip material, aspect environmental protection, thermoplastic elastomer (TPE) material does not add any objectionable impurities to environment and body harmless, low pollution, and nontoxic odorless, and scrap stock can be recycled! Aspect forming process, odorlessness in thermoplastic elastomer (TPE) the forming materials process is guaranteed Manufacturing Worker's health, and material does not have corrodibility to equipment, can reduce the maintenance cost of production unit.Aspect material behavior, advantage such as that thermoplastic elastomer (TPE) material has is in light weight, rebound resilience is high, welding strength good, be easy to colouring, lower temperature resistance is good.In the exploitation of refrigerator sealed strip field thermoplastic elastomer (TPE) material, mainly concentrate on TPU, TPV and TPS three major types material at present.
Competition owing to white domestic appliances market at present is growing more intense, so TPS has obtained sufficient development as a higher material of cost performance in the sealed strip field.But a certain distance is in addition compared all with the PVC material in welding strength, the weathering resistance aspect of TPS class sealed strip at present, and the application of TPS class sealed strip also has been subjected to the restriction of above-mentioned factor.
Summary of the invention
The objective of the invention is to overcome the deficiency that the refrigerator sealed strip exists with elastomer material in the prior art, a kind of refrigerator sealed strip elastomer material is provided, this material has the advantages that mechanical property is good, rebound resilience is good, welding strength is high, lower temperature resistance is excellent, weathering resistance is high, cost performance is higher, overcome on the one hand the weak point of PVC material sealed strip, efficiently solved present TPS sealed strip on the other hand and have that welding strength is low, the insufficient problem of weathering resistance.
Another object of the present invention provides a kind of method for preparing above-mentioned refrigerator sealed strip with elastomer material.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of refrigerator sealed strip is made up of the following component of calculating by weight with elastomer material:
15 ~ 45 parts of hydrogenated styrene resinoids;
15 ~ 60 parts of rubber filling oils;
8 ~ 34 parts of mineral fillers;
8 ~ 38 parts of polypropylene;
4 ~ 15 parts of compatilizers;
1 ~ 3 part of weather resisting agent.
Described hydrogenated styrene resinoid is the mixture that high workability hydrogenated styrene resin and low flow hydrogenated styrene resin are formed; Described high workability hydrogenated styrene resin is that weight-average molecular weight is 10 ~ 250,000 hydrogenated styrene resin, and apparent viscosity is 10 ~ 15PaS; The apparent viscosity of described low flow hydrogenated styrene resin is 1 ~ 3 PaS; In the described mixture, the content of high workability hydrogenated styrene resin is 20 ~ 55 weight %.
Described rubber filling oil is under 40 ℃, and kinematic viscosity is 120 ~ 160mm
2S
-1High viscosity rubbers extending oil with under 40 ℃, kinematic viscosity is 50 ~ 80mm
2S
-1The mixture formed of low viscosity rubber extending oil; In the described mixture, the content of high viscosity rubbers extending oil is 40 ~ 75 weight %.
Described mineral filler is one or more the mixture in lime carbonate or the talcum powder.
Described polypropylene refers to that for molten copolymerization eutectic at 1 ~ 5g/10min refers to polypropylene or molten the finger at high molten one or more the mixture that refers in the polypropylene of the copolymerization of 25 ~ 30g/10min.
Described compatilizer is a maleic anhydride grafts, and described maleic anhydride grafts is preferably SEBS-MAH, PP-MAH.
Described weather resisting agent is UV-P or UV-531.
Described refrigerator sealed strip can also contain 3 ~ 9 parts of processing aids of mark calculating by weight with elastomer material.
Described auxiliary agent is one or more the mixture in mineral oil, modified silicone resin such as MB50-002, a-Methylstyrene Low-Polymer or the slipping agent.
Described slipping agent is preferably erucicamide.
Described refrigerator sealed strip can also contain 1 ~ 6 part of antiseptic-germicide of mark calculating by weight with elastomer material.
A kind of described refrigerator sealed strip comprises the steps: with the preparation method of elastomer material
(1) at first in high-speed mixer, adds the hydrogenated styrene resinoid that has fully absorbed rubber filling oil, add compatilizer, polypropylene, mineral filler, auxiliary agent, weather resisting agent, antiseptic-germicide then successively, under 50 ~ 90 ℃, carry out the mixing of 5 ~ 10min, obtain mixing material;
(2) above-mentioned mixing material is mixed by counter rotation twin screw extruder, granulation, packing obtains product.
Compared with prior art, the present invention has following beneficial effect:
(1) elastomer material of the present invention is to be composited by hydrogenated styrene resinoid, rubber filling oil, polypropylene material, do not introduce any halogen containing material in the production process, do not introduce the o-benzene plasticiser of any harmful health of human body, that the thermoplastic elastic material of being produced has is in light weight, rebound resilience is high, welding strength good, be easy to colouring, lower temperature resistance is good, advantages such as environmental protection;
(2) microcosmic means such as macroscopical means such as the mechanical property of the present invention by test TPE material, weld bond intensity and DSC, SEM pattern photo, show with the maleic anhydride grafts to be compatilizer, can either good consistency be arranged with hydrogenated styrene analog, has good consistency with acrylic resin, mineral filler again, thereby impel interpenetrating and spreading of macromolecular chain segment, improve the welding strength of material secondary processing;
(3) the present invention matches and good UV-P or the UV-531 weather resisting agent of system consistency by the research of acrylic resin kind and consumption, can improve the weather resistance of product greatly, realizes xenon lamp test 1000 hours, and Δ E (1000h) is still less than 3;
When (4) using elastomer material of the present invention to carry out extrusion moulding, do not need through high temperature vulcanized, extrusion does not have toxic gas to decompose, and can not corrode production unit, and scrap stock can be recycled; Mineral oil, organically-modified silicone resin and a-Methylstyrene Low-Polymer can improve the flowability of TPE material, given material good extrude processing characteristics.
Embodiment:
Further explain the present invention below in conjunction with embodiment, but embodiment does not do any type of qualification to the present invention.
Embodiment 1
Get 35 parts of SEBS resins, 40 parts of rubber filling oils, 15 parts of acrylic resins, 12 parts of SEBS-MAH, 15 parts in lime carbonate, 3 parts of silicone master batch MB50-002,2 parts of UV-P, 2 parts of Royalguard BC 250 antiseptic-germicides.At first allow the SEBS resin fully absorb rubber filling oil then, add SEBS-MAH, acrylic resin, lime carbonate, MB50-002, UV-P, antiseptic-germicide then successively, in high-speed mixer, carry out the mixing of 9min under 70 ℃, by counter rotation twin screw extruder granulation under 200-220 ℃ of temperature, pack then.Resulting material gained performance is as shown in table 1.
Table 1 embodiment 1 products obtained therefrom performance
| Performance | Standard | International unit | Product performance |
| Tensile strength | ASTM?D412 | MPa | 7.5 |
| Elongation | ASTM?D412 | % | 436 |
| Proportion | ASTM?D792 | g/cm 3 | 1.03 |
| Shrinking percentage | ASTM?D955 | % | 0.6-0.9 |
| The molten finger | ASTM?D1238 | g/10min(200℃/5kg） | 1.54 |
| Shore hardness | ASTM?D2240 | The A type | 72 |
| Weathering resistance | ISO?4892.2 | ΔE | 2.6 |
| The corner solder pulling force | ASTM?D412 | N | 41.7 |
| Brittle point | ASTM?D746 | ℃ | -60 |
Embodiment 2
Get 25 parts of SEEPS resins, 35 parts of rubber filling oils, 25 parts of acrylic resins, 10 parts of PP-MAH, 20 parts of talcum powder, 3.5 parts of MB50-002,1 part of UV-P, 3 parts of antiseptic-germicides.At first allow the SEBS resin fully absorb rubber filling oil then, add PP-MAH, acrylic resin, talcum powder, MB50-002, UV-P, Royalguard BC 250 antiseptic-germicides then successively, in high-speed mixer, carry out the mixing of 7min under 90 ℃ of conditions, by counter rotation twin screw extruder granulation under 200-220 ℃ of temperature, pack then.Resulting material gained performance is as shown in table 2.
Table 2 embodiment 2 products obtained therefrom performances
| Performance | Standard | International unit | Product performance |
| Tensile strength | ASTM?D412 | MPa | 8.2 |
| Elongation | ASTM?D412 | % | 414 |
| Proportion | ASTM?D792 | g/cm 3 | 1.04 |
| Shrinking percentage | ASTM?D955 | % | 0.5-0.8 |
| The molten finger | ASTM?D1238 | g/10min(200℃/5kg） | 2.24 |
| Shore hardness | ASTM?D2240 | The A type | 83 |
| Weathering resistance | ISO?4892.2 | ΔE | 2.9 |
| The corner solder pulling force | ASTM?D412 | N | 51.8 |
| Brittle point | ASTM?D746 | ℃ | -60 |
Embodiment 3
Get 45 parts of SEPS resins, 50 parts of rubber filling oils, 35 parts of acrylic resins, 15 parts of PP-MAH, 25 parts in lime carbonate, 3 parts of MB50-002,1 part of UV-531,3 parts of antiseptic-germicides.At first allow the SEBS resin fully absorb rubber filling oil then, add PP-MAH, acrylic resin, talcum powder, MB50-002, UV-531, Royalguard BC 250 antiseptic-germicides then successively, in high-speed mixer, carry out the mixing of 7min under 90 ℃ of conditions, then, pack by counter rotation twin screw extruder granulation under 200-220 ℃ of temperature.Resulting material gained performance is as shown in table 2.
Table 3 embodiment 3 products obtained therefrom performances
| Performance | Standard | International unit | Product performance |
| Tensile strength | ASTM?D412 | MPa | 8.8 |
| Elongation | ASTM?D412 | % | 406 |
| Proportion | ASTM?D792 | g/cm 3 | 1.06 |
| Shrinking percentage | ASTM?D955 | % | 0.6-0.9 |
| The molten finger | ASTM?D1238 | g/10min(200℃/5kg） | 1.95 |
| Shore hardness | ASTM?D2240 | The A type | 81 |
| Weathering resistance | ISO?4892.2 | ΔE | 2.4 |
| The corner solder pulling force | ASTM?D412 | N | 47.6 |
| Brittle point | ASTM?D746 | ℃ | -60 |
From product performance as can be seen, the product of embodiment 1-3 has the mechanical property excellence, and the weather resistance that welding strength is good, resistance to low temperature is excellent and good meets the needs in refrigerator sealed strip field.
Claims (10)
1. refrigerator sealed strip elastomer material is characterized in that being made up of the following component of calculating by weight:
15 ~ 45 parts of hydrogenated styrene resinoids;
15 ~ 60 parts of rubber filling oils;
8 ~ 34 parts of mineral fillers;
8 ~ 38 parts of polypropylene;
4 ~ 15 parts of compatilizers;
1 ~ 3 part of weather resisting agent.
2. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described hydrogenated styrene resinoid is the mixture that high workability hydrogenated styrene resin and low flow hydrogenated styrene resin are formed; Described high workability hydrogenated styrene resin is that weight-average molecular weight is 10 ~ 250,000 hydrogenated styrene resin, and apparent viscosity is 10 ~ 15PaS; The apparent viscosity of described low flow hydrogenated styrene resin is 1 ~ 3 PaS; In the described mixture, the content of high workability hydrogenated styrene resin is 20 ~ 55 weight %.
3. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described rubber filling oil under 40 ℃, and kinematic viscosity is 120 ~ 160mm
2S
-1High viscosity rubbers extending oil with under 40 ℃, kinematic viscosity is 50 ~ 80mm
2S
-1The mixture formed of low viscosity rubber extending oil; In the described mixture, the content of high viscosity rubbers extending oil is 40 ~ 75 weight %.
4. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described mineral filler is one or more the mixture in lime carbonate or the talcum powder.
5. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described polypropylene is that the copolymerization eutectic of 1 ~ 5g/10min refers to that polypropylene or molten the finger are high molten one or more the mixture that refers in the polypropylene of the copolymerization of 25 ~ 30g/10min for molten the finger.
6. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described compatilizer is a maleic anhydride grafts.
7. as refrigerator sealed strip elastomer material as described in the claim 6, it is characterized in that described maleic anhydride grafts is SEBS-MAH or PP-MAH.
8. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described weather resisting agent is UV-P or UV-531.
9. refrigerator sealed strip elastomer material according to claim 1 is characterized in that described refrigerator sealed strip also contains 1 ~ 6 part of antiseptic-germicide that mark by weight calculates with elastomer material; 3 ~ 9 parts auxiliary agent; Described auxiliary agent is one or more the mixture in mineral oil, modified silicone resin, a-Methylstyrene Low-Polymer or the slipping agent; Described slipping agent is an erucicamide.
10. the preparation method of the described refrigerator sealed strip usefulness of claim 1 elastomer material is characterized in that comprising the steps:
(1) at first in high-speed mixer, adds the hydrogenated styrene resinoid that has fully absorbed rubber filling oil, add compatilizer, polypropylene, mineral filler, auxiliary agent, weather resisting agent, antiseptic-germicide then successively, under 50 ~ 90 ℃, carry out the mixing of 5 ~ 10min, obtain mixing material;
(2) above-mentioned mixing material is mixed by counter rotation twin screw extruder, granulation, packing obtains product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105078555A CN101983984B (en) | 2010-10-15 | 2010-10-15 | Elastic body material for refrigerator sealing strips and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105078555A CN101983984B (en) | 2010-10-15 | 2010-10-15 | Elastic body material for refrigerator sealing strips and preparation method thereof |
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| CN101983984A true CN101983984A (en) | 2011-03-09 |
| CN101983984B CN101983984B (en) | 2012-07-18 |
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Cited By (13)
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| CN102344603A (en) * | 2011-10-24 | 2012-02-08 | 浙江俊尔新材料有限公司 | Rubber and plastic sealing material in stable size at high and low temperatures and preparation method thereof |
| CN102634159A (en) * | 2012-04-25 | 2012-08-15 | 益阳达普林科技有限公司 | SEBS (styrenic block copolymer) thermoplastic elastomer and preparation method thereof |
| CN103524977A (en) * | 2013-09-15 | 2014-01-22 | 爱侣健康科技有限公司 | Organic silicon modified thermoplastic elastomer |
| CN104341687A (en) * | 2013-07-28 | 2015-02-11 | 安徽同丰橡塑工业有限公司 | Rubber strip |
| CN104817810A (en) * | 2015-05-19 | 2015-08-05 | 中国石油大学(华东) | Thermoplastic elastomer material for high-welding-strength refrigerator sealing strips and preparation method thereof |
| CN104945745A (en) * | 2014-03-28 | 2015-09-30 | 丰田合成株式会社 | Rubber material and seal component and hose |
| CN106589762A (en) * | 2016-12-19 | 2017-04-26 | 青岛新材料科技工业园发展有限公司 | Thermoplastic elastomer door seal easy to weld and preparation method thereof |
| CN106700384A (en) * | 2016-12-30 | 2017-05-24 | 慈溪市山今高分子塑料有限公司 | TPE (thermoplastic elastomer) material for manufacturing refrigerator sealing rubber strips and preparation process of TPE material |
| CN110819054A (en) * | 2019-11-14 | 2020-02-21 | 珠海格力绿色再生资源有限公司 | Refrigerator elastomer door seal composition and method for preparing door seal based on composition |
| CN111205585A (en) * | 2020-03-09 | 2020-05-29 | 南通大学 | SEBS (styrene-ethylene-butadiene-styrene) elastomer composite material for high-performance refrigerator sealing strip and preparation method thereof |
| CN112175338A (en) * | 2019-07-02 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Superconducting disk frame, material preparation process thereof and superconducting disk |
| CN114316496A (en) * | 2021-12-28 | 2022-04-12 | 南通普力马弹性体技术有限公司 | High-filling scratch-resistant extrusion-grade thermoplastic elastomer material and preparation method thereof |
| CN114605842A (en) * | 2022-04-25 | 2022-06-10 | 安特普工程塑料（苏州）有限公司 | High-fluidity scratch-resistant elastomer with good touch feeling and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102344603A (en) * | 2011-10-24 | 2012-02-08 | 浙江俊尔新材料有限公司 | Rubber and plastic sealing material in stable size at high and low temperatures and preparation method thereof |
| CN102344603B (en) * | 2011-10-24 | 2013-07-10 | 浙江俊尔新材料有限公司 | Rubber and plastic sealing material in stable size at high and low temperatures and preparation method thereof |
| CN102634159A (en) * | 2012-04-25 | 2012-08-15 | 益阳达普林科技有限公司 | SEBS (styrenic block copolymer) thermoplastic elastomer and preparation method thereof |
| CN102634159B (en) * | 2012-04-25 | 2014-03-26 | 深圳达普林科技有限公司 | SEBS (styrenic block copolymer) thermoplastic elastomer and preparation method thereof |
| CN104341687A (en) * | 2013-07-28 | 2015-02-11 | 安徽同丰橡塑工业有限公司 | Rubber strip |
| CN103524977A (en) * | 2013-09-15 | 2014-01-22 | 爱侣健康科技有限公司 | Organic silicon modified thermoplastic elastomer |
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| CN104945745A (en) * | 2014-03-28 | 2015-09-30 | 丰田合成株式会社 | Rubber material and seal component and hose |
| CN104817810B (en) * | 2015-05-19 | 2016-03-16 | 中国石油大学(华东) | High welding strength refrigerator sealed strip thermoplastic elastic material and preparation method thereof |
| CN104817810A (en) * | 2015-05-19 | 2015-08-05 | 中国石油大学(华东) | Thermoplastic elastomer material for high-welding-strength refrigerator sealing strips and preparation method thereof |
| CN106589762A (en) * | 2016-12-19 | 2017-04-26 | 青岛新材料科技工业园发展有限公司 | Thermoplastic elastomer door seal easy to weld and preparation method thereof |
| CN106589762B (en) * | 2016-12-19 | 2019-07-05 | 青岛新材料科技工业园发展有限公司 | It is a kind of easily to weld thermoplastic elastomer (TPE) door seal and preparation method thereof |
| CN106700384A (en) * | 2016-12-30 | 2017-05-24 | 慈溪市山今高分子塑料有限公司 | TPE (thermoplastic elastomer) material for manufacturing refrigerator sealing rubber strips and preparation process of TPE material |
| CN112175338A (en) * | 2019-07-02 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Superconducting disk frame, material preparation process thereof and superconducting disk |
| CN110819054A (en) * | 2019-11-14 | 2020-02-21 | 珠海格力绿色再生资源有限公司 | Refrigerator elastomer door seal composition and method for preparing door seal based on composition |
| CN111205585A (en) * | 2020-03-09 | 2020-05-29 | 南通大学 | SEBS (styrene-ethylene-butadiene-styrene) elastomer composite material for high-performance refrigerator sealing strip and preparation method thereof |
| CN111205585B (en) * | 2020-03-09 | 2022-09-16 | 南通大学 | SEBS (styrene-ethylene-butadiene-styrene) elastomer composite material for high-performance refrigerator sealing strip and preparation method thereof |
| CN114316496A (en) * | 2021-12-28 | 2022-04-12 | 南通普力马弹性体技术有限公司 | High-filling scratch-resistant extrusion-grade thermoplastic elastomer material and preparation method thereof |
| CN114605842A (en) * | 2022-04-25 | 2022-06-10 | 安特普工程塑料（苏州）有限公司 | High-fluidity scratch-resistant elastomer with good touch feeling and preparation method thereof |
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