CN115895127A - Microporous fast-elastic rubber material and preparation method thereof - Google Patents
Microporous fast-elastic rubber material and preparation method thereof Download PDFInfo
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- CN115895127A CN115895127A CN202211455962.7A CN202211455962A CN115895127A CN 115895127 A CN115895127 A CN 115895127A CN 202211455962 A CN202211455962 A CN 202211455962A CN 115895127 A CN115895127 A CN 115895127A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000005662 Paraffin oil Substances 0.000 claims description 5
- 239000004156 Azodicarbonamide Substances 0.000 claims description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical group NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 2
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical group [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 239000013536 elastomeric material Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000004073 vulcanization Methods 0.000 description 12
- 238000009413 insulation Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 229940116901 diethyldithiocarbamate Drugs 0.000 description 4
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 229920006247 high-performance elastomer Polymers 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a microporous fast-elastic rubber material and a preparation method thereof, wherein the microporous fast-elastic rubber material comprises the following raw materials: ethylene propylene diene monomer, calcium powder, a lubricant, a foaming agent, an accelerant and sulfur; the preparation method comprises the following steps: the method comprises the following steps: ethylene propylene diene monomer、Uniformly mixing the calcium powder and the lubricant, mixing, heating to 110-130 ℃, turning over once every 5-10 ℃ in the heating process, removing glue, passing through the glue once, discharging the glue, and airing for 25-40 minutes to obtain a semi-finished glue; step by stepStep two: banburying the semi-finished product rubber, the foaming agent, the accelerator and the sulfur at the temperature of 60-90 ℃ for 1-2 minutes, discharging the rubber and thinning the rubber twice, adding the foaming agent again, extruding and cutting the mixture at the temperature of 50-80 ℃ to obtain a rubber blank; step three: and (3) vulcanizing the rubber blank in the step two at the temperature of 100-120 ℃ for 20-40 minutes, heating to 140-160 ℃, continuing vulcanizing for 20-40 minutes, taking out and cooling. The method has simple process and is easy to popularize.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a microporous fast-elasticity rubber material and a preparation method thereof.
Background
The microporous rubber is a porous vulcanized rubber, which is prepared by compounding latex or rubber in the presence of a foaming agent and then vulcanizing. Has the performances of light weight, wear resistance, heat insulation, sound insulation, electric insulation and the like, and has the functions of buffering and filtering. A porous vulcanized rubber having a pore size of 0.4 to 0.5 μm or less and a density of 0.07 to 0.25. There are both soft and hard. Has the performances of light weight, wear resistance, heat insulation, sound insulation, electric insulation and the like. And has buffering and filtering effects. The material is mainly used as a filter material, a heat insulation material, a sound insulation material, a storage battery separator, a buffer material, a sole and the like. It is prepared from latex or rubber through mixing in the presence of foaming agent and sulfurizing.
At present, the production of the products mainly adopts a two-stage vulcanization method, firstly vulcanization is carried out in a mould, then cooling is carried out, and then further baking and curing are carried out in an oven, so that the process is complex.
Disclosure of Invention
In order to solve the problem of complicated procedures of microporous rubber in the prior art, the invention provides a microporous fast-elastic rubber material and a preparation method thereof.
The invention provides a microporous fast-elastic rubber material which comprises the following components in parts by weight:
30-40 parts of Ethylene Propylene Diene Monomer (EPDM);
30-40 parts of calcium powder;
10-20 parts of a lubricant;
14-18 parts of foaming agent;
3-5 parts of an accelerant;
2 to 4 portions of sulfur.
Further, the blowing agent is azodicarbonamide (HDM).
Further, the accelerator is zinc Diethyldithiocarbamate (DM).
Further, the lubricant is paraffin oil.
The invention also provides a microporous fast-elasticity rubber material and a preparation method thereof, and the preparation method comprises the following steps:
the method comprises the following steps: uniformly mixing ethylene propylene diene monomer, calcium powder and a lubricant, mixing, heating to 110-130 ℃, turning over once every 5-10 ℃ in the heating process, and discharging rubber to obtain a rubber material; thinning the glue material once, wherein the roller distance is 0.5mm when the glue material is thinned, and obtaining semi-finished glue after glue discharging and airing for 25-40 minutes;
step two: banburying the semi-finished product rubber, the foaming agent, the accelerator and the sulfur in the first step for 1-2 minutes at the temperature of 60-90 ℃, discharging the rubber and passing through the thin film twice, adding the foaming agent again, extruding at the temperature of 50-80 ℃, wherein the length of a screw rod of an extruder is 1.5 meters, the length-diameter ratio is 8;
step three: and (3) vulcanizing the rubber blank in the step two at the temperature of between 100 and 120 ℃ for 20 to 40 minutes, heating to between 140 and 160 ℃, continuously vulcanizing for 20 to 40 minutes, taking out and cooling.
And further, adding a foaming agent twice in the second step in a mass ratio of 1.
The invention also provides the application of the microporous fast-elastic rubber material or the microporous fast-elastic rubber material prepared by the preparation method in the vacuum-pumping mechanical arm.
Compared with the prior art, the invention has the beneficial effects that:
1. this application micropore plays rubber materials soon and does not wrap up gas and avoid the defect, and the bubble is even, and high density just easily exhausts, and rebound speed is fast.
2. The microporous fast-elastic rubber material is a high-performance elastomer material and has good aging resistance and flame retardance.
3. The microporous fast-elastic rubber material prepared by the microporous foaming method has the characteristics of good toughness, tear strength and buffering performance, light weight, insulation, weather resistance, flame retardance, high temperature resistance, no toxicity, environmental protection and the like.
Detailed Description
The following is a detailed description of the present invention, and the technical solutions of the present invention will be further described with reference to examples.
Example 1
Preparing a microporous fast-elastic rubber material:
(1) primary banburying: adding 35 parts of EPDM (ethylene-propylene-diene monomer) in the formula proportion into an internal mixer, stirring for 2 minutes, adding 35 parts of calcium powder and 15 parts of paraffin oil, heating to 120 ℃, turning over once at an interval temperature of 5 ℃ to mix to 125 ℃, and discharging rubber;
(2) open mixing: conveying the rubber material obtained by banburying into an open mill, thinning once, adjusting the roller distance to 0.5mm when thinning, then discharging the rubber, and airing for 30 minutes to obtain a semi-finished rubber product;
(3) secondary banburying: adding the semi-finished product rubber, 8 parts of HDM, 4 parts of DM and 3 parts of sulfur into an internal mixer, carrying out internal mixing for 1 minute at the temperature of 80 ℃, discharging the rubber, and carrying out thinning twice;
(4) extruding: adding 8 parts of HDM into the secondarily-banburied semi-finished rubber, wherein the length of a feeding screw is 1.5m, and the length-diameter ratio is 8:1, extruding at 60 ℃, and cutting according to the specification smaller than that of a vulcanization mold to obtain a rubber blank;
(5) and (3) vulcanization: and (3) placing the rubber blank into a vulcanization mould, vulcanizing for 30 minutes at 115 ℃, then heating to 150 ℃, continuing to vulcanize for 30 minutes, taking out the product after vulcanization is finished, and cooling.
Example 2
Preparing a microporous fast-elastic rubber material:
(1) primary banburying: adding 30 parts of EPDM (ethylene-propylene-diene monomer) into an internal mixer, stirring for 2 minutes, adding 35 parts of calcium powder and 15 parts of paraffin oil, heating to 120 ℃, turning over at the interval temperature of 7 ℃ to mix once to 125 ℃, and discharging rubber;
(2) open smelting: conveying the rubber material obtained by banburying into an open mill, thinning once, adjusting the roller distance to 0.5mm when thinning, then discharging the rubber, and airing for 30 minutes to obtain a semi-finished rubber product;
(3) secondary banburying: adding the semi-finished product rubber, 8 parts of HDM, 4 parts of DM and 3 parts of sulfur into an internal mixer, carrying out internal mixing for 1 minute at the temperature of 80 ℃, discharging the rubber, and carrying out thinning twice;
(4) extruding: adding 8 parts of foaming agent HDM into the secondarily-banburied semi-finished product glue, wherein the length of the input screw is 1.5m, and the length-diameter ratio is 8:1, extruding at 60 ℃, and cutting according to the specification smaller than that of a vulcanization mold to obtain a rubber blank;
(5) and (3) vulcanizing: and (3) placing the rubber blank into a vulcanization mold, vulcanizing for 30 minutes at the temperature of 115 ℃, then heating to 150 ℃, continuing vulcanizing for 30 minutes, taking out a product after vulcanization is finished, and cooling.
Example 3
Preparing a microporous fast-elasticity rubber material:
(1) primary banburying: adding 40 parts of EPDM (ethylene-propylene-diene monomer) into an internal mixer, stirring for 2 minutes, adding 40 parts of calcium powder and 20 parts of paraffin oil, heating to 120 ℃, turning over at the interval temperature of 10 ℃ to mix once to 125 ℃, and discharging rubber;
(2) open smelting: conveying the rubber material obtained by banburying into an open mill, thinning once, adjusting the roller distance to 0.5mm when thinning, then discharging the rubber, and airing for 30 minutes to obtain a semi-finished rubber product;
(3) secondary banburying: adding the semi-finished product rubber, 9 parts of HDM, 5 parts of DM and 4 parts of sulfur into an internal mixer, carrying out internal mixing for 2 minutes at the temperature of 80 ℃, discharging the rubber, and passing through the internal mixer twice;
(4) extruding: adding 9 parts of foaming agent HDM into the secondarily-banburying semi-finished product rubber, wherein the length of a feeding screw is 1.5m, and the length-diameter ratio is 8:1, extruding at 60 ℃, and cutting according to the specification smaller than that of a vulcanization mold to obtain a rubber blank;
(5) and (3) vulcanizing: and (3) placing the rubber blank into a vulcanization mold, vulcanizing for 30 minutes at the temperature of 115 ℃, then heating to 150 ℃, continuing vulcanizing for 30 minutes, taking out a product after vulcanization is finished, and cooling.
The microporous fast elastic rubber materials of the examples 1 to 3 were subjected to the property test, and the results thereof are shown in Table 1.
TABLE 1 Performance data for microcellular fast-elastic rubber materials
As can be seen from Table 1, the microporous fast elastic rubber material of the invention is a high-performance elastomer material, and has good aging resistance and flame retardance. The microporous fast-elastic rubber material prepared by the microporous foaming method has the characteristics of good toughness, tear strength and buffering performance, light weight, insulation, weather resistance, flame retardance, high temperature resistance, no toxicity, environmental protection and the like.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A microporous fast-elasticity rubber material is characterized by comprising the following components in parts by weight:
30-40 parts of ethylene propylene diene monomer;
30-40 parts of calcium powder;
10-20 parts of a lubricant;
14-18 parts of a foaming agent;
3-5 parts of an accelerant;
2 to 4 portions of sulfur.
2. The microcellular fast-elastic rubber material according to claim 1, wherein said foaming agent is azodicarbonamide.
3. A microcellular elastomeric material according to claim 1, wherein said accelerator is zinc diethyldithiocarbamate.
4. The microcellular fast-elastic rubber material according to claim 1, wherein the lubricant is paraffin oil.
5. The preparation method of the microporous fast elastic rubber material according to claim 1, which is characterized by comprising the following steps:
the method comprises the following steps: ethylene propylene diene monomer、Mixing calcium powder and lubricant uniformly, mixing, heating to 110-130 deg.C, turning over every 5-10 deg.C in the course of heating, removing glue, passing through thin film once, discharging glue, drying in the sun for 25-40 min to obtain semi-finished productGlue preparation;
step two: banburying the semi-finished product rubber, the foaming agent, the accelerator and the sulfur at the temperature of 60-90 ℃ for 1-2 minutes, discharging the rubber and thinning the rubber twice, adding the foaming agent again, extruding and cutting the mixture at the temperature of 50-80 ℃ to obtain a rubber blank;
step three: and (3) vulcanizing the rubber blank in the step two at the temperature of 100-120 ℃ for 20-40 minutes, heating to 140-160 ℃, continuing vulcanizing for 20-40 minutes, taking out and cooling.
6. A preparation method of a microporous fast-elastic rubber material according to claim 5, wherein the mass ratio of the foaming agent added twice in the second step is 1.
7. Use of the microporous fast elastic rubber material according to any one of claims 1 to 4 or the microporous fast elastic rubber material prepared by the method according to any one of claims 5 to 6 in an evacuation robot arm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211455962.7A CN115895127A (en) | 2022-11-21 | 2022-11-21 | Microporous fast-elastic rubber material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211455962.7A CN115895127A (en) | 2022-11-21 | 2022-11-21 | Microporous fast-elastic rubber material and preparation method thereof |
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| CN115895127A true CN115895127A (en) | 2023-04-04 |
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|---|---|---|---|---|
| CN104861314A (en) * | 2015-06-12 | 2015-08-26 | 衡水中铁建工程橡胶有限责任公司 | Microporous rubber base plate and preparation process thereof |
| CN105885250A (en) * | 2016-06-28 | 2016-08-24 | 株洲时代新材料科技股份有限公司 | Production process for ethylene propylene diene monomer microporous base plate and product produced by production process |
| CN106515144A (en) * | 2016-11-04 | 2017-03-22 | 宁波博瀚工艺品有限公司 | Ultrathin microcellular foaming rubber yoga sports mat and preparation method thereof |
| CN109096618A (en) * | 2018-07-23 | 2018-12-28 | 安徽立信橡胶科技有限公司 | A kind of modified EPT rubber compounding |
| CN110669294A (en) * | 2019-11-19 | 2020-01-10 | 江苏创合橡塑有限公司 | Formula of mould pressing foaming ethylene propylene diene monomer composition material |
| CN114621529A (en) * | 2020-12-13 | 2022-06-14 | 南京飞能橡塑制品有限公司 | EPDM air energy superelastic particles |
-
2022
- 2022-11-21 CN CN202211455962.7A patent/CN115895127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861314A (en) * | 2015-06-12 | 2015-08-26 | 衡水中铁建工程橡胶有限责任公司 | Microporous rubber base plate and preparation process thereof |
| CN105885250A (en) * | 2016-06-28 | 2016-08-24 | 株洲时代新材料科技股份有限公司 | Production process for ethylene propylene diene monomer microporous base plate and product produced by production process |
| CN106515144A (en) * | 2016-11-04 | 2017-03-22 | 宁波博瀚工艺品有限公司 | Ultrathin microcellular foaming rubber yoga sports mat and preparation method thereof |
| CN109096618A (en) * | 2018-07-23 | 2018-12-28 | 安徽立信橡胶科技有限公司 | A kind of modified EPT rubber compounding |
| CN110669294A (en) * | 2019-11-19 | 2020-01-10 | 江苏创合橡塑有限公司 | Formula of mould pressing foaming ethylene propylene diene monomer composition material |
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Non-Patent Citations (1)
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