CN103146079A - Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof - Google Patents
Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof Download PDFInfo
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- CN103146079A CN103146079A CN2013100599155A CN201310059915A CN103146079A CN 103146079 A CN103146079 A CN 103146079A CN 2013100599155 A CN2013100599155 A CN 2013100599155A CN 201310059915 A CN201310059915 A CN 201310059915A CN 103146079 A CN103146079 A CN 103146079A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 26
- 239000006260 foam Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 7
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008117 stearic acid Substances 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 13
- 239000005060 rubber Substances 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 229920001897 terpolymer Polymers 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 9
- -1 polyoxyethylene Polymers 0.000 claims description 7
- 238000005987 sulfurization reaction Methods 0.000 claims description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 229920001821 foam rubber Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- 239000004088 foaming agent Substances 0.000 abstract 2
- 239000005662 Paraffin oil Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 229940068918 polyethylene glycol 400 Drugs 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 3
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- CNFQJGLKUZBUBD-TXHUMJEOSA-N hexa-1,5-diene;(3e)-hexa-1,3-diene;(4e)-hexa-1,4-diene Chemical class CC\C=C\C=C.C\C=C\CC=C.C=CCCC=C CNFQJGLKUZBUBD-TXHUMJEOSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses an open-cell EPDM (ethylene-propylene-diene monomer) rubber foam which is prepared from the following components in parts by weight: 42 parts of EPDM rubber, 2.5 parts of high styrene, 30 parts of kaolin, 2.8 parts of zinc oxide, 0.2 part of PEG-400 (polyethylene glycol-400), 0.4 part of stearic acid SA 1800, 2.67 parts of foaming agent CX-A, 2 parts of carbon black N550, 10.5 parts of paraffin oil, 2.2 parts of foaming agent DPT-E, 0.8 part of accelerator DM and 0.75 part of sulfur. The product disclosed by the invention has the advantages of portability, high toughness, low thermal conductivity, excellent thermal insulation property, independent bubble structure, very low water absorptivity, excellent impact resistance and excellent weather resistance, and can be used as a cushioning material. The method disclosed by the invention has the advantages of simple processing steps and favorable effect, is easy to implement, can prepare products with stable quality, can effectively enhance the production efficiency and can lower the cost.
Description
Technical field
The present invention relates to foam, particularly a kind of perforate EPDM rubber foam and preparation method thereof.
Background technology
Terpolymer EP rubber (EPDM) is formed by ethene, propylene and unsaturated the 3rd monomer non-conjugated diene hydrocarbon copolymerization, is development in recent years synthetic rubber faster.One has ethylidene norbornene (ENB), dicyclopentadiene (DCPD) and l to terpolymer EP rubber with the 3rd monomer, 4 one hexadienes (HI)) three kinds, that commonly used is ENB and DCPD.Because the molecular chain main chain is nonpolar and saturated, EPDM not only has high temperature resistant and ozone proof performance preferably, also has good electric insulativity and solvent resistance.The These characteristics of EPDM has been 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 develop EPDM rubber foam, but because EPDM is non-from reinforced type rubber, after sulfuration, its tensile strength is low, needs that in routine use it is carried out reinforcement and just can have use value.Common reinforcement has two kinds: add filler and crystal type resin.The reinforced filling that EPDM is traditional is carbon black and silicon-dioxide.Although but adding the intensity that can improve EPDM after carbon black, the mobility of rubber unvulcanizate can descend (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 well behaved EPDM rubber foam, and a kind of respond well preparation method of 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 perforate EPDM rubber foam reasonable in design.
The present invention also aims to provide a kind of preparation method of above-mentioned perforate EPDM rubber foam.
The technical scheme that the present invention adopts for achieving the above object is:
A kind of perforate EPDM rubber foam, its component and parts by weight are as follows:
42 parts of terpolymer EP rubbers;
2.5 parts of high-phenylethylenes;
30 parts of kaolin;
2.8 parts, zinc oxide;
0.2 part of polyoxyethylene glycol;
0.4 part of stearic acid SA1800;
2.67 parts of whipping agent CX-A;
2 parts of carbon black N550;
10.5 parts of paraffin oils;
2.2 parts of whipping agent DPT-E;
0.8 part of altax;
0.75 part of sulphur SF.
A kind of preparation method of aforementioned perforate EPDM rubber foam, it comprises the following steps:
(1) batching is according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 ℃, and concrete steps are as follows:
A, terpolymer EP rubber is put in material pot and pressed down;
B, put into resin and high-phenylethylene after two minutes and press down;
C, put into carbon black N550 and press down when temperature reaches 115 ℃;
D, put into when temperature reaches 125 ℃ kaolin and oil and press down,
E, add stearic acid, zinc oxide, polyoxyethylene glycol and press down when temperature reaches 137 ℃;
F, when reaching 120 ℃, temperature adds whipping agent DPT-E and whipping agent CX-A;
G, take the dish out of the pot when temperature reaches 125 ℃, it is cooling that the material in pot thins 5 taking-ups through mill;
H, will put into Banbury mixer and add sulphur and altax through the cooling material of mill, take the dish out of the pot during lower than 80 ℃ in temperature;
(3) open refining, concrete steps are as follows:
The material that A, Banbury mixer have just drawn takes out cooling after mill thins 5 times;
B, will expect to thin 2 times through mill;
C, will expect on mill pendulum roller mixing 10 minutes, and take out and be divided into 4 parts, be positioned over from level to level on material frame;
D, slice will be expected slice, and every 4 layers, the sheet that goes out is 3.2cm through spreader bar extruding 2 times about this spreader bar shaft clearance;
E, placement go out good sheet placement and can carry out vulcanizer sulfuration operation after 24 hours;
(4) sulfuration, vapor pressure is adjusted to 0.28-0.32Mpa, and temperature is 137 ℃-145 ℃, and curing time is 1400s-1700s, will go out good sheet and put into mould, begins to vulcanize matched moulds 3 times, and after curing time arrived, die sinking was taken out product and is treated second time of foaming from mould;
(5) second time of foaming is adjusted to 0.4Mpa with vapor pressure, and vulcanizate was put into mould regularly 8 minutes, carries out second time of foaming, and the time takes out cooling to rear die sinking, complete preparation process.
Beneficial effect of the present invention is: product of the present invention is light and stronger toughness is arranged, and thermal conductivity is low, has superior heat retaining property, have the separated foam structure, water-absorbent is very low, and erosion-resisting characteristics is splendid, can be used as cushioning material and use, and weathering resistance is splendid, the inventive method processing step is simple, easily implement, it is respond well, can, prepared constant product quality out, can effectively enhance productivity, reduce costs.
Embodiment
Embodiment: a kind of perforate EPDM of the present invention rubber foam, its component and parts by weight are as follows:
42 parts of terpolymer EP rubbers;
2.5 parts of high-phenylethylenes;
30 parts of kaolin;
2.8 parts, zinc oxide;
0.2 part of polyoxyethylene glycol;
0.4 part of stearic acid SA1800;
2.67 parts of whipping agent CX-A;
2 parts of carbon black N550;
10.5 parts of paraffin oils;
2.2 parts of whipping agent DPT-E;
0.8 part of altax;
0.75 part of sulphur SF.
A kind of preparation method of aforementioned perforate EPDM rubber foam, it comprises the following steps:
(1) batching is according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 ℃, and concrete steps are as follows:
A, terpolymer EP rubber is put in material pot and pressed down;
B, put into resin and high-phenylethylene after two minutes and press down;
C, put into carbon black N550 and press down when temperature reaches 115 ℃;
D, put into when temperature reaches 125 ℃ kaolin and oil and press down,
E, add stearic acid, zinc oxide, polyoxyethylene glycol and press down when temperature reaches 137 ℃;
F, when reaching 120 ℃, temperature adds whipping agent DPT-E and whipping agent CX-A;
G, take the dish out of the pot when temperature reaches 125 ℃, it is cooling that the material in pot thins 5 taking-ups through mill;
H, will put into Banbury mixer and add sulphur and altax through the cooling material of mill, take the dish out of the pot during lower than 80 ℃ in temperature;
(3) open refining, concrete steps are as follows:
The material that A, Banbury mixer have just drawn takes out cooling after mill thins 5 times;
B, add the work in-process sizing material of whipping agent to thin 2 times through mill;
C, the work in-process sizing material on mill pendulum roller mixing 10 minutes that adds whipping agent, and take out and be divided into 4 parts, be positioned over from level to level on material frame;
D, slice will add the work in-process sizing material slice of whipping agent, and every 4 layers, the sheet that goes out is through spreader bar extruding 2 times, and this spreader bar shaft clearance left and right is 3.2cm;
E, placement go out good sheet placement and can carry out vulcanizer sulfuration operation after 24 hours;
(4) sulfuration, vapor pressure is adjusted to 0.28-0.32Mpa, and temperature is 137 ℃-145 ℃, and curing time is 1400s-1700s, will go out good sheet and put into mould, begins to vulcanize matched moulds 3 times, and after curing time arrived, die sinking was taken out product and is treated second time of foaming from mould;
(5) second time of foaming is adjusted to 0.4Mpa with vapor pressure, and vulcanizate was put into mould regularly 8 minutes, carries out second time of foaming, and the time takes out cooling to rear die sinking, complete preparation process.
Product of the present invention is light and stronger toughness is arranged, and thermal conductivity is low, has superior heat retaining property, have the separated foam structure, water-absorbent is very low, and erosion-resisting characteristics is splendid, can be used as cushioning material and use, and weathering resistance is splendid, the inventive method processing step is simple, easily implement, it is respond well, can, prepared constant product quality out, can effectively enhance productivity, reduce costs.
As described in the embodiment of the present invention, with other perforates EPDM rubber foam of the same or similar structure of the present invention and preparation method thereof, all in protection domain of the present invention.
Claims (2)
1. a perforate EPDM rubber foam, is characterized in that, its component and parts by weight are as follows:
(7141) 28 parts of terpolymer EP rubbers;
(33014) 14 parts of terpolymer EP rubbers;
2.5 parts of high-phenylethylenes;
30 parts of kaolin;
2.8 parts, zinc oxide;
0.2 part of polyoxyethylene glycol;
0.4 part of stearic acid SA1800;
2.67 parts of whipping agent CX-A;
2 parts of carbon black N550;
10.5 parts of paraffin oils;
2.2 parts of whipping agent DPT-E;
0.8 part of altax;
0.75 part of sulphur SF.
2. the preparation method of the described perforate EPDM of claim 1 a rubber foam, is characterized in that, it comprises the following steps:
(1) batching is according to said components and parts by weight batching;
(2) banburying: turn-on temperature is set as 100 ℃, and concrete steps are as follows:
A, terpolymer EP rubber 330 and terpolymer EP rubber 7141 are put in the material pot and pressed down;
B, put into resin and high-phenylethylene after two minutes and press down;
C, put into carbon black N550 and press down when temperature reaches 115 ℃;
D, put into when temperature reaches 125 ℃ kaolin and oil and press down,
E, add stearic acid, zinc oxide, polyoxyethylene glycol and press down when temperature reaches 137 ℃;
F, when reaching 120 ℃, temperature adds whipping agent DPT-E and whipping agent CX-A;
G, take the dish out of the pot when temperature reaches 125 ℃, it is cooling that the material in pot thins 5 taking-ups through mill;
H, will put into Banbury mixer and add sulphur and altax through the cooling material of mill, take the dish out of the pot during lower than 80 ℃ in temperature;
(3) open refining, concrete steps are as follows:
The material that A, Banbury mixer have just drawn takes out cooling after mill thins 5 times;
B, will expect to thin 2 times through mill;
C, will expect on mill pendulum roller mixing 10 minutes, and take out and be divided into 4 parts, be positioned over from level to level on material frame;
D, slice will be expected slice, and every 4 layers, the sheet that goes out is 3.2cm through spreader bar extruding 2 times about this spreader bar shaft clearance;
E, placement go out good sheet placement and can carry out vulcanizer sulfuration operation after 24 hours;
(4) sulfuration, vapor pressure is adjusted to 0.28-0.32Mpa, and temperature is 137 ℃-145 ℃, and curing time is 1400s-1700s, will go out good sheet and put into mould, begins to vulcanize matched moulds 3 times, and after curing time arrived, die sinking was taken out product and is treated second time of foaming from mould;
(5) second time of foaming is adjusted to 0.4Mpa with vapor pressure, and vulcanizate was put into mould regularly 8 minutes, carries out second time of foaming, and the time takes out cooling to rear die sinking, complete preparation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059915.5A CN103146079B (en) | 2013-02-26 | 2013-02-26 | Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059915.5A CN103146079B (en) | 2013-02-26 | 2013-02-26 | Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103146079A true CN103146079A (en) | 2013-06-12 |
| CN103146079B CN103146079B (en) | 2015-05-13 |
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| CN201310059915.5A Active CN103146079B (en) | 2013-02-26 | 2013-02-26 | Open-cell EPDM (ethylene-propylene-diene monomer) rubber foam and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171461A (en) * | 2019-12-30 | 2020-05-19 | 易宝（福建）高分子材料股份公司 | Secondary foaming rail transit base plate and preparation method and application thereof |
| CN112608559A (en) * | 2020-12-25 | 2021-04-06 | 易宝（福建）高分子材料股份公司 | High-density EPDM (ethylene-propylene-diene monomer) foamed cushion plate for automobile engine and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756575A (en) * | 2002-12-26 | 2006-04-05 | 阿尔扎公司 | Active agent delivery device having composite members |
| 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 |
-
2013
- 2013-02-26 CN CN201310059915.5A patent/CN103146079B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756575A (en) * | 2002-12-26 | 2006-04-05 | 阿尔扎公司 | Active agent delivery device having composite members |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171461A (en) * | 2019-12-30 | 2020-05-19 | 易宝（福建）高分子材料股份公司 | Secondary foaming rail transit base plate and preparation method and application thereof |
| CN112608559A (en) * | 2020-12-25 | 2021-04-06 | 易宝（福建）高分子材料股份公司 | High-density EPDM (ethylene-propylene-diene monomer) foamed cushion plate for automobile engine and preparation method thereof |
| CN112608559B (en) * | 2020-12-25 | 2023-05-12 | 易宝（福建）高分子材料股份公司 | High-density EPDM (ethylene-propylene-diene monomer) foaming backing plate for automobile engine and preparation method thereof |
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| Publication number | Publication date |
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| CN103146079B (en) | 2015-05-13 |
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