CN101585945A - A kind of Ethylene Propylene Terpolymer rubber and preparation method thereof with high-adhesion - Google Patents
A kind of Ethylene Propylene Terpolymer rubber and preparation method thereof with high-adhesion Download PDFInfo
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- CN101585945A CN101585945A CNA2009100336007A CN200910033600A CN101585945A CN 101585945 A CN101585945 A CN 101585945A CN A2009100336007 A CNA2009100336007 A CN A2009100336007A CN 200910033600 A CN200910033600 A CN 200910033600A CN 101585945 A CN101585945 A CN 101585945A
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Abstract
The present invention relates to a kind of preparation method, be used as the raw materials for production of vehicle noise insulation pad specifically with Ethylene Propylene Terpolymer rubber of high-adhesion.Feature is: ethylene-propylene diene copolymer, lime carbonate, paraffin, stearic acid are mixed through the twin-roll plastics processing mill, add ethylene-vinyl acetate resin more afterwards, thin slice is got in the Gum Rosin blend, at last thin slice is pressed into rubber.Production technique of the present invention is simple, and cost is lower, and made rubber and polyurethane foam layer have higher cohesiveness, can be widely used in the vehicle noise insulation pad of being made up of polyurathamc and Ethylene Propylene Terpolymer rubber.
Description
Technical field
The present invention relates to a kind of Ethylene Propylene Terpolymer rubber and preparation method thereof, specifically be used for the raw materials for production of vehicle noise insulation pad with high-adhesion.
Background technology
Along with the development of auto manufacturing technology, automobile industry is more and more higher to the requirement of trolley part.Especially the inside gadget,, environmental protection attractive in appearance, also require to have acoustical behavior preferably, to improve the comfort of autoist except requiring.This mainly is to realize by the material that use has sound insulation, a sound absorption qualities.The single material of tradition has been difficult to satisfy simultaneously these performance requriementss, and this just need use two or more material.Ethylene-propylene diene copolymer (EPDM) is the saturated polymkeric substance of a kind of main chain, not only has excellent ageing-resistant, chemical-resistant resistance, water-fast and electrical insulation capability, and has sound-proofing properties preferably.And urethane (PU) foam material is an open-celled structure, has sound absorption qualities preferably again.Therefore both superpose form two-layer or sound insulating pad that multilayer materials can be used for producing automobile usually.But in reality was produced, the cohesiveness between EPDM rubber and the PU foaming layer was bad usually, even peels off automatically, is difficult to form stable sound insulation, sound absorbent material.The cohesiveness that how to improve EPDM rubber and PU foam materials seems particularly important.In the prescription of EPDM rubber, can add a lot of processing aids usually, especially internal lubricant stearic acid and external lubricant paraffin.The adding of inside and outside lubricant agent makes the flowability of EPDM rubber increase usually, is easy to break away from from processing units, also can play the effect of separant simultaneously when EPDM rubber is deposited, and prevents the mutual bonding between EPDM rubber.Supplier for EPDM rubber; under the prerequisite that does not influence processing characteristics, can add excessive inside and outside lubricant agent usually, this just makes the surface energy of EPDM rubber reduce; with the cohesiveness variation of polyurethane material, this production to vehicle noise insulation pad is totally unfavorable.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of facility investment few, production technique is simple, and cost is lower, and itself and polyurethane foam layer have higher close-burning a kind of Ethylene Propylene Terpolymer rubber and preparation method thereof.
According to technical scheme provided by the invention, a kind of ethylene-propylene diene copolymer suitcase with high-adhesion contains following component, and its component ratio is counted by weight:
25～35 parts of ethylene-propylene diene copolymers (EPDM), 50～70 parts in lime carbonate, 1.5～5.5 parts in paraffin, 1～5 part of stearic acid, 1～6 part of ethylene-vinyl acetate (EVA) resin, 1～5 part of Gum Rosin; The Vinyl Acetate Monomer content of described ethylene-vinyl acetate resin (EVA) is 28 weight %.
Ethylene-propylene diene copolymer, lime carbonate, paraffin, stearic acid are mixed through the twin-roll plastics processing mill, add ethylene-vinyl acetate resin (EVA), Gum Rosin blend afterwards again, get thin slice; At last thin slice is pressed into rubber.
A kind of preparation method of the present invention with Ethylene Propylene Terpolymer rubber of high-adhesion, adopt following processing step: its component ratio is counted by weight:
Getting 25～35 parts of ethylene-propylene diene copolymers (EPDM), 50～70 parts in lime carbonate, 1.5～5.5 parts in paraffin, stearic acid is mixed in mixing machine for 1～6 part, time is 1～2min, add 1～6 part of ethylene-vinyl acetate resin (EVA), 1～5 part of Gum Rosin afterwards respectively, slice after 4～6 triangle bags are played in 90～110 ℃ twin-roll plastics processing mill blend; Sheet thickness 1～3mm.
Above-mentioned thin slice is molded into rubber in vulcanizing press.Wherein preload pressure is 1～3MPa, and the time is 2～4min, and dwell pressure is 8～10MPa, and the dwell time is 4～6min, and the pressure of colding pressing is 10～12MPa, and time 8～10min colds pressing.
Compared with the prior art the present invention has the following advantages:
The present device less investment, production technique is simple, and cost is lower, and made rubber and polyurethane foam layer have higher cohesiveness; The equipment that adopts is not limited to using vulcanizing press compression molding EPDM rubber after the blend of twin-roll plastics processing mill again, also can use extrusion calendaring technology to substitute.
Embodiment
Following the present invention will be further described in conjunction with the embodiments:
Embodiment 1: a kind of preparation method of the present invention with Ethylene Propylene Terpolymer rubber of high-adhesion, and adopt following processing step: its component ratio is counted by weight:
Get 35 parts of ethylene-propylene diene copolymers (EPDM), 50 parts in lime carbonate, 1.5 parts in paraffin, 1 part of stearic acid through 90 ℃ twin-roll plastics processing mill blend 2min, adds 6 parts of ethylene-vinyl acetate resins (EVA), 1 part of Gum Rosin respectively successively at last, make a call to slice behind 4 triangle bags, sheet thickness 2mm; The last rubber that in 150 ℃ vulcanizing press, is molded into 1mm.First first precompressed 4min under 1MPa, pressurize 6min under 8MPa then, the 10min that in another vulcanizing press, colds pressing at normal temperatures at last, pressure is 8MPa.On the EPDM rubber that is pressed into, carry out the PU foaming, test average peeling force, maximum peeling force and observe the stripping damage mode, the results are shown in Table 1.
Embodiment 2: a kind of preparation method of the present invention with Ethylene Propylene Terpolymer rubber of high-adhesion, and adopt following processing step: its component ratio is counted by weight:
Get 30 parts of ethylene-propylene diene copolymers (EPDM), 60 parts in lime carbonate, 3.5 parts in paraffin, 2.5 parts of stearic acid through 100 ℃ twin-roll plastics processing mill blend 1.5min, add 3.5 parts of EVA resins, 3 parts of Gum Rosins respectively successively at last, make a call to slice behind 5 triangle bags, sheet thickness 3mm; The last rubber that in 140 ℃ vulcanizing press, is molded into 2mm.First first precompressed 3min under 2MPa, pressurize 5min under 10MPa then, the 9min that in another vulcanizing press, colds pressing at normal temperatures at last, pressure is 11MPa.On the EPDM rubber that is pressed into, carry out the PU foaming, test average peeling force, maximum peeling force and observe the stripping damage mode, the results are shown in Table 1.
Embodiment 3: a kind of preparation method of the present invention with Ethylene Propylene Terpolymer rubber of high-adhesion, and adopt following processing step: its component ratio is counted by weight:
Get 25 parts of ethylene-propylene diene copolymers (EPDM), 70 parts in lime carbonate, 5.5 parts in paraffin, 5 parts of stearic acid through 110 ℃ twin-roll plastics processing mill blend 1min, add 1 part of EVA resin, 5 parts of Gum Rosins respectively successively at last, make a call to slice behind 6 triangle bags, sheet thickness 4mm; The last rubber that in 130 ℃ vulcanizing press, is molded into 3mm.First first precompressed 2min under 3MPa, pressurize 4min under 13MPa then, the 8min that in another vulcanizing press, colds pressing at normal temperatures at last, pressure is 12MPa.On the EPDM rubber that is pressed into, carry out the PU foaming, test average peeling force, maximum peeling force and observe the stripping damage mode, the results are shown in Table 1.
Table 1
| Average peeling force (kgf/50mm) | Maximum peeling force (kgf/50mm) | Failure mode | |
| Embodiment 1 | 12.7 | 13.9 | Cohesive failure |
| Embodiment 2 | 11.4 | 12.8 | Cohesive failure |
| Embodiment 3 | 11.1 | 12.6 | Cohesive failure |
Claims (4)
1, a kind of Ethylene Propylene Terpolymer rubber with high-adhesion, it is characterized in that: comprise following component, the component ratio is counted by weight: 25～35 parts of ethylene-propylene diene copolymers, 50～70 parts in lime carbonate, 1.5～5.5 parts in paraffin, 1～6 part of ethylene-vinyl acetate resin, 1～5 part of stearic acid, 1～5 part of Gum Rosin, ethylene-propylene diene copolymer, lime carbonate, paraffin, stearic acid are mixed through the twin-roll plastics processing mill, add ethylene-vinyl acetate resin more afterwards, thin slice is got in the Gum Rosin blend, at last thin slice is pressed into rubber.
2, according to right 1 described a kind of Ethylene Propylene Terpolymer rubber with high-adhesion, it is characterized in that: the content of Vinyl Acetate Monomer is 14～28% in the described ethylene-vinyl acetate resin.
3, according to right 1 described a kind of preparation method with Ethylene Propylene Terpolymer rubber of high-adhesion, it is characterized in that: adopt following processing step: its component ratio is counted by weight:
Getting 25～35 parts of ethylene-propylene diene copolymers, 50～70 parts in lime carbonate, 1.5～5.5 parts in paraffin, stearic acid is mixed in mixing machine for 1～6 part, time is 1～2min, add 1～6 part of ethylene-vinyl acetate resin, 1～5 part of Gum Rosin afterwards respectively, back slice after 4～6 triangle bags are played in 90～110 ℃ twin-roll plastics processing mill blend;
Above-mentioned thin slice is molded into rubber in vulcanizing press, wherein preload pressure is 1～3MPa, and the time is 2～4min, and dwell pressure is 8～10MPa, and the dwell time is 4～6min, and the pressure of colding pressing is 10～12MPa, and time 8～10min colds pressing.
4, according to right 1 described a kind of preparation method, it is characterized in that: sheet thickness 1～3mm with Ethylene Propylene Terpolymer rubber of high-adhesion.
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| CN2009100336007A CN101585945B (en) | 2009-06-24 | 2009-06-24 | Ternary rubber with high cohesiveness and its preparation method |
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| CN2009100336007A CN101585945B (en) | 2009-06-24 | 2009-06-24 | Ternary rubber with high cohesiveness and its preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863698A (en) * | 2012-08-30 | 2013-01-09 | 苏州博云塑业有限公司 | Soundproof and noise-reducing light composite material |
| CN105237889A (en) * | 2015-08-18 | 2016-01-13 | 苏州国泰科技发展有限公司 | Flame-retardant automobile interior trimming material and preparation method therefor |
| CN106751500A (en) * | 2016-12-05 | 2017-05-31 | 芜湖天鸿汽车零部件有限公司 | A kind of material of automobile heat insulation sound panel and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151200C (en) * | 2001-05-15 | 2004-05-26 | 南开大学 | Modified polyolefine elastomer and its preparing process |
| CN1228375C (en) * | 2003-01-30 | 2005-11-23 | 江西省励远化工科技实业公司 | Foaming pad for car and making method thereof |
| CN100447192C (en) * | 2005-08-05 | 2008-12-31 | 东莞银禧塑胶有限公司 | High flame retardance low smoke no-halogen cable sheath material and its production process |
| CN101245237B (en) * | 2008-03-22 | 2010-07-21 | 解忠深 | Composite water-proof rubber coil and producing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863698A (en) * | 2012-08-30 | 2013-01-09 | 苏州博云塑业有限公司 | Soundproof and noise-reducing light composite material |
| CN105237889A (en) * | 2015-08-18 | 2016-01-13 | 苏州国泰科技发展有限公司 | Flame-retardant automobile interior trimming material and preparation method therefor |
| CN106751500A (en) * | 2016-12-05 | 2017-05-31 | 芜湖天鸿汽车零部件有限公司 | A kind of material of automobile heat insulation sound panel and preparation method thereof |
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| CN101585945B (en) | 2011-04-20 |
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