CN103146080B - A kind of closed pore EPDM rubber foam and preparation method thereof - Google Patents
A kind of closed pore EPDM rubber foam and preparation method thereof Download PDFInfo
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- CN103146080B CN103146080B CN201310059963.4A CN201310059963A CN103146080B CN 103146080 B CN103146080 B CN 103146080B CN 201310059963 A CN201310059963 A CN 201310059963A CN 103146080 B CN103146080 B CN 103146080B
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Abstract
The invention discloses a kind of closed pore EPDM rubber foam, its component and parts by weight as follows: butyl rubber 14 parts; Terpolymer EP rubber 25 parts; Resin 2.5 parts; Wax oil 8 parts; Accelerant N A-22 2.2 part; Kaolin 26 parts; 1.35 parts, zinc oxide; Stearic acid SA1800 1.3 part; Fire retardant 8010 1.3 part; Blowing agent AC-1000 0.3 part; Blowing agent AC-5000 5 parts; Carbon black N660 2.4 part; Antimonous oxide 1.5 parts; TM monex TM 0.58 part; Promotor ZDC 1.1 part; Captax 0.8 part; Vulcanizing agent 0.3 part; Pore foaming agent 0.4 part; Whipping agent CX-A 1.35 part.Product of the present invention is light and have stronger toughness, and thermal conductivity is low, has superior heat retaining property, have separated foam structure, water-absorbent is very low, and erosion-resisting characteristics is splendid, can be used as cushioning material to use, and excellent in weather, the inventive method processing step is simple, easy enforcement, it is respond well, can, prepared constant product quality out, effectively can enhance productivity, reduce costs.
Description
Technical field
The present invention relates to foam, particularly a kind of closed pore EPDM rubber foam and preparation method thereof.
Background technology
Terpolymer EP rubber (EPDM) is formed by ethene, propylene and the copolymerization of unsaturated Third monomer non-conjugated diene hydrocarbon, is development in recent years synthetic rubber faster.Terpolymer EP rubber Third monomer one have ethylidene norbornene (ENB), dicyclopentadiene (DCPD) and l, 4 one hexadienes (HI)) three kinds, that conventional is ENB and DCPD.Because molecular chain main chain is nonpolar and saturated, EPDM not only has high temperature resistant and ozone proof performance preferably, also has good electrical insulation and solvent resistance.The These characteristics of EPDM has widened the Application Areas of EPDM, as widely used sealed strip in thermoplastic material, electrical apparatus insulation material, waterproof roll, automobile and building trade etc.
Because EPDM rubber has so many characteristic, industry is devoted to exploitation EPDM rubber foam, but due to EPDM be non-self reinforcing rubber, after sulfuration, its tensile strength is low, needs to carry out reinforcement to it and just can have use value in routine use.Common reinforcement has two kinds: add filler and crystal type resin.The reinforced filling that EPDM is traditional is carbon black and silicon-dioxide.But although the intensity of EPDM after adding carbon black, can be improved, the mobility of rubber unvulcanizate can decline (Mooney viscosity value rising), and the electrical property of cross-linked rubber (as dielectric strength and volume specific resistance) also can decrease.
Therefore, a kind of EPDM rubber foam of good performance, and a kind of respond well preparation method being convenient to implement becomes the demand of industry.
Summary of the invention
The object of the invention is to, for the problems referred to above, provide a kind of closed pore EPDM rubber foam reasonable in design.
The present invention also aims to the preparation method that a kind of above-mentioned closed pore EPDM rubber foam is provided.
The technical scheme that the present invention is adopted for achieving the above object is:
A kind of closed pore EPDM rubber foam, its component and parts by weight as follows:
Butyl rubber 14 parts;
Terpolymer EP rubber 25 parts;
Resin 2.5 parts;
Paraffin oil 8 parts;
Accelerant N A-222.2 part;
Kaolin 26 parts;
1.35 parts, zinc oxide;
Stearic acid SA18001.3 part;
Fire retardant 80101.3 parts;
Blowing agent AC-10000.3 parts;
Blowing agent AC-50005 parts;
Carbon black N6602.4 part;
Antimonous oxide 1.5 parts;
TM monex TM0.58 part;
Promotor ZDC1.1 part;
Captax 0.8 part;
Vulcanizing agent 0.3 part;
Pore foaming agent 0.4 part;
Whipping agent CX-A1.35 part.
A preparation method for aforementioned closed pore EPDM rubber foam, it comprises the following steps:
(1) prepare burden, according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 DEG C, and concrete steps are as follows:
A, rubber 330 and butyl rubber 1675 put in material pot and press down;
B, put into resin after two minutes and press down;
C, put into blowing agent AC 5000, carbon black, fire retardant, kaolin, zinc oxide, stearic acid pressing down when temperature reaches 115 DEG C;
Put into paraffin oil 1/2 when D, temperature 100 DEG C, then put into residue paraffin oil when temperature 105 DEG C;
E, take the dish out of the pot when temperature 105 DEG C, the material taken the dish out of the pot takes out cooling through mill;
F, feeding, Banbury mixer put into by the material of cooling, adds promotor ZDC, captax, vulcanizing agent, whipping agent CX-A, pore foaming agent, incorporates completely after in material and takes the dish out of the pot, go out pot temperature not higher than 70 DEG C until it;
(3) open refining, concrete steps are as follows:
A, mill are rolled left axle scale inwards to 13, right roller bearing scale inwards to 12.5, with mill, material are thinned 2 times;
B, upper extension 8 minutes, mill is rolled left axle scale outwards to 2, right roller bearing scale outwards to 2;
C, material taking-up is divided into 3 parts, is positioned on material frame from level to level;
D, slice, the material slice above hung up properly, every sheet 3 layers, the sheet gone out extrudes 2 times through spreader bar, is 2.8cm about this spreader bar shaft clearance;
E, placement, the sheet gone out was placed after 24 hours can sulfuration;
(4) sulfuration, vapor pressure is adjusted to 0.06-0.08Mpa, and temperature is 110 DEG C-115 DEG C, and curing time is 1400s-1700s, and the sheet gone out is put into mould, and start sulfuration matched moulds 3 times, after curing time arrives, product takes out and treats second time of foaming by die sinking from mould;
(5) second time of foaming, is adjusted to 0.4-0.45Mpa by vapor pressure, and vulcanizate is put into mould, turn-over is carried out to product, when first time, the reverse side time was after second time of foaming starts the 3rd minute, second time turn-over is the 8th minute, and the follow-up supervention of secondary turn-over steeps 18 minutes;
(6) peel, after the product cooling after second time of foaming, carry out pros and cons and peel, make surfacing;
(7) carry out high temperature and steam baking, temperature is set to 110 DEG C, and the time is set as 1 hour 20 minutes, product is expanded and recovers normal thickness, thus complete preparation process.
Beneficial effect of the present invention is: product of the present invention is light and have stronger toughness, and thermal conductivity is low, has superior heat retaining property, have separated foam structure, water-absorbent is very low, and erosion-resisting characteristics is splendid, can be used as cushioning material to use, and excellent in weather, the inventive method processing step is simple, easy enforcement, it is respond well, can, prepared constant product quality out, effectively can enhance productivity, reduce costs.
Embodiment
Embodiment: a kind of closed pore EPDM of the present invention rubber foam, its component and parts by weight as follows:
Butyl rubber 14 parts;
Terpolymer EP rubber 25 parts;
Resin 2.5 parts;
Paraffin oil 8 parts;
Accelerant N A-222.2 part;
Kaolin 26 parts;
1.35 parts, zinc oxide;
Stearic acid SA18001.3 part;
Fire retardant 80101.3 parts;
Blowing agent AC-10000.3 parts;
Blowing agent AC-50005 parts;
Carbon black N6602.4 part;
Antimonous oxide 1.5 parts;
TM monex TM0.58 part;
Promotor ZDC1.1 part;
Captax 0.8 part;
Vulcanizing agent 0.3 part;
Pore foaming agent 0.4 part;
Whipping agent CX-A1.35 part.
A preparation method for aforementioned closed pore EPDM rubber foam, it comprises the following steps:
(1) prepare burden, according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 DEG C, and concrete steps are as follows:
A, rubber 330 and butyl rubber 1675 put in material pot and press down;
B, put into resin after two minutes and press down;
C, put into blowing agent AC 5000, carbon black, fire retardant, kaolin, zinc oxide, stearic acid pressing down when temperature reaches 115 DEG C;
Put into paraffin oil 1/2 when D, temperature 100 DEG C, then put into residue paraffin oil when temperature 105 DEG C;
E, take the dish out of the pot when temperature 105 DEG C, the material taken the dish out of the pot takes out cooling through mill;
F, feeding, Banbury mixer put into by the material of cooling, adds promotor ZDC, captax, sulphur, whipping agent CX-A, pore foaming agent, incorporates completely after in material and takes the dish out of the pot, go out pot temperature not higher than 70 DEG C until it;
(3) open refining, concrete steps are as follows:
A, mill are rolled left axle scale inwards to 13, right roller bearing scale inwards to 12.5, with mill, material are thinned 2 times;
B, upper extension 8 minutes, mill is rolled left axle scale outwards to 2, right roller bearing scale outwards to 2;
C, material taking-up is divided into 3 parts, is positioned on material frame from level to level;
D, slice, the material slice above hung up properly, every sheet 3 layers, the sheet gone out extrudes 2 times through spreader bar, is 2.8cm about this spreader bar shaft clearance;
E, placement, the sheet gone out was placed after 24 hours can sulfuration;
(4) sulfuration, vapor pressure is adjusted to 0.06-0.08Mpa, and temperature is 110 DEG C-115 DEG C, and curing time is 1400s-1700s, and the sheet gone out is put into mould, and start sulfuration matched moulds 3 times, after curing time arrives, product takes out and treats second time of foaming by die sinking from mould;
(5) second time of foaming, is adjusted to 0.4-0.45Mpa by vapor pressure, and vulcanizate is put into mould, turn-over is carried out to product, when first time, the reverse side time was after second time of foaming starts the 3rd minute, second time turn-over is the 8th minute, and the follow-up supervention of secondary turn-over steeps 18 minutes;
(6) peel, after the product cooling after second time of foaming, carry out pros and cons and peel, make surfacing;
(7) carry out high temperature and steam baking, temperature is set to 110 DEG C, and the time is set as 1 hour 20 minutes, product is expanded and recovers normal thickness, thus complete preparation process.
Product of the present invention is light and have stronger toughness, and thermal conductivity is low, has superior heat retaining property, have separated foam structure, water-absorbent is very low, and erosion-resisting characteristics is splendid, can be used as cushioning material to use, and excellent in weather, the inventive method processing step is simple, easy enforcement, it is respond well, can, prepared constant product quality out, effectively can enhance productivity, reduce costs.
As described in the present embodiment of the invention, with other closed pores EPDM rubber foam of the same or similar structure of the present invention and preparation method thereof, all in scope.
Claims (2)
1. a closed pore EPDM rubber foam, is characterized in that, its component and parts by weight as follows:
butyl rubber 14 parts;
terpolymer EP rubber 25 parts;
resin 2.5 parts;
paraffin oil 8 parts;
accelerant N A-222.2 part;
kaolin 26 parts;
1.35 parts, zinc oxide;
stearic acid SA18001.3 part;
fire retardant 80101.3 parts;
blowing agent AC-10000.3 parts;
blowing agent AC-50005 parts;
carbon black N6602.4 part;
antimonous oxide 1.5 parts;
tM monex TM0.58 part;
promotor ZDC1.1 part;
captax 0.8 part;
vulcanizing agent 0.3 part;
pore foaming agent 0.4 part;
whipping agent CX-A1.35 part.
2.
a preparation method for closed pore EPDM rubber foam described in claim 1, it is characterized in that, it comprises the following steps:
(1) prepare burden, according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 DEG C, and concrete steps are as follows:
a, terpolymer EP rubber and butyl rubber put in material pot and press down;
b, put into resin after two minutes and press down;
c, put into blowing agent AC-5000, carbon black N660, fire retardant 8010, kaolin, zinc oxide, stearic acid SA1800 pressing down when temperature reaches 115 DEG C;
put into paraffin oil 1/2 when D, temperature 100 DEG C, then put into residue paraffin oil when temperature 105 DEG C;
e, take the dish out of the pot when temperature 105 DEG C, the material taken the dish out of the pot takes out cooling through mill;
f, feeding, Banbury mixer put into by the material of cooling, adds promotor ZDC, captax, accelerant N A-22, TM monex TM, vulcanizing agent, whipping agent CX-A, blowing agent AC-1000, pore foaming agent, antimonous oxide; Incorporate completely after in material until it and take the dish out of the pot, go out pot temperature not higher than 70 DEG C;
(3) open refining, concrete steps are as follows:
a, mill are rolled left axle scale inwards to 13, right roller bearing scale inwards to 12.5, with mill, material are thinned 2 times;
b, upper extension 8 minutes, mill is rolled left axle scale outwards to 2, right roller bearing scale outwards to 2;
c, material taking-up is divided into 3 parts, is positioned on material frame from level to level;
d, slice, the material slice above hung up properly, every sheet 3 layers, the sheet gone out extrudes 2 times through spreader bar, is 2.8cm about this spreader bar shaft clearance;
e, placement, the sheet gone out was placed after 24 hours can sulfuration;
(4) sulfuration, vapor pressure is adjusted to 0.06-0.08Mpa, and temperature is 110 DEG C-115 DEG C, and curing time is 1400s-1700s, and the sheet gone out is put into mould, and start sulfuration matched moulds 3 times, after curing time arrives, product takes out and treats second time of foaming by die sinking from mould;
(5) second time of foaming, is adjusted to 0.4-0.45Mpa by vapor pressure, and vulcanizate is put into mould, turn-over is carried out to product, when first time, the reverse side time was after second time of foaming starts the 3rd minute, second time turn-over is the 8th minute, and the follow-up supervention of secondary turn-over steeps 18 minutes;
(6) peel, after the product cooling after second time of foaming, carry out pros and cons and peel, make surfacing;
(7) carry out high temperature and steam baking, temperature is set to 110 DEG C, and the time is set as 1 hour 20 minutes, product is expanded and recovers normal thickness, thus complete preparation process.
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| CN201310059963.4A CN103146080B (en) | 2013-02-26 | 2013-02-26 | A kind of closed pore EPDM rubber foam and preparation method thereof |
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| CN104163998B (en) * | 2014-08-14 | 2017-10-27 | 易宝（福建）高分子材料股份公司 | A kind of fire-retardant low resilience ethylene propylene diene rubber hole-opening foaming material and preparation method thereof |
| CN105585784B (en) * | 2015-07-23 | 2018-06-05 | 易宝（福建）高分子材料股份公司 | A kind of environmental-protection flame-retardant butyl rubber and the poly-blended closed pore second time of foaming material of ethylene propylene diene rubber and preparation method thereof |
| CN105419119B (en) * | 2015-12-16 | 2017-08-29 | 台州山江橡塑有限公司 | A kind of rubber plastic foam material and preparation method thereof |
| CN105924714A (en) * | 2016-05-17 | 2016-09-07 | 高永涛 | Flexible low-temperature cryogenic thermal insulating material |
| WO2018237120A1 (en) * | 2017-06-22 | 2018-12-27 | L'isolante K-Flex S.P.A. | Coated closed-cell foam tube insulations and methods for producing the same |
| CN107163415A (en) * | 2017-07-03 | 2017-09-15 | 上海荣南科技有限公司 | A kind of closely knit glue microporous foam sizing material of sealing strip for automobile sunroof and preparation method |
| CN109721916A (en) * | 2019-02-15 | 2019-05-07 | 铜陵市启动电子制造有限责任公司 | A kind of high damping noinductive capacitor padded coaming and preparation method thereof |
| CN111138767B (en) * | 2019-12-30 | 2023-06-02 | 易宝（福建）高分子材料股份公司 | Weighted and hardened open-cell EPDM rubber blending molding repeated high-rate foaming backing plate and preparation method thereof |
| CN114381029A (en) * | 2021-12-31 | 2022-04-22 | 易宝（福建）高分子材料股份公司 | EPDM (ethylene-propylene-diene monomer) rubber reclaimed material closed-cell secondary foam material and preparation method thereof |
| CN116102893A (en) * | 2023-02-28 | 2023-05-12 | 重庆优菲特科技有限公司 | Ecological floating plate for cultivation and preparation method thereof |
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| CN102504419A (en) * | 2011-11-07 | 2012-06-20 | 易宝(福建)高分子材料有限公司 | Ethylene propylene diene monomer and chloroprene rubber blended secondary closed pore foaming material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102504419A (en) * | 2011-11-07 | 2012-06-20 | 易宝(福建)高分子材料有限公司 | Ethylene propylene diene monomer and chloroprene rubber blended secondary closed pore foaming material and preparation method thereof |
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