CN102464831A - Microcellular foam thermoplastic elastomer for high-speed railway damping base plate and preparation method thereof - Google Patents
Microcellular foam thermoplastic elastomer for high-speed railway damping base plate and preparation method thereof Download PDFInfo
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- CN102464831A CN102464831A CN2010105466118A CN201010546611A CN102464831A CN 102464831 A CN102464831 A CN 102464831A CN 2010105466118 A CN2010105466118 A CN 2010105466118A CN 201010546611 A CN201010546611 A CN 201010546611A CN 102464831 A CN102464831 A CN 102464831A
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Abstract
The invention discloses a microcellular foam thermoplastic elastomer for a high-speed railway damping base plate. The microcellular foam thermoplastic elastomer is prepared from the following raw materials in parts by weight: 20-80 parts of ethylene propylene diene rubber, 20-80 parts of polypropylene, 0.1-10 parts of a crosslinking agent, 0.3-60 parts of a crosslinking catalyst, 0.5-3 parts of a microcellular foaming agent and 1-10 parts of an aid. A molded product in the invention is a closed-pore microcellular foam elastomer product of which the pore diameter is dozens of microns, and has the advantages of smooth and even appearance, independent air bubbles, small foams and no residue of chemical substances. Meanwhile, the weight of the molded product can be reduced by 10-40 percent, absorbed energy can be increased by 3-5 times under the action of impact, and original crack tips can be passivated, so that the toughness of a material is enhanced, fatigue life is prolonged, and the requirements of physical property, elasticity, kinetic energy absorption and the like on the high-speed railway damping base plate can be met.
Description
Technical field:
The invention belongs to a kind of macromolecular material, particularly a kind of high ferro damping backing plate is with little foamed thermoplastic elastomers and preparation method thereof.
Background technology:
Along with the fast development of Modern High-Speed railway, the high-speed cruising of train is had higher requirement to the damping performance of high-speed railway, and original rubber pad, EVA pad, TPU pad have been difficult to satisfy the damping requirement of growing high-speed railway.Little foamed thermoplastic elastomers has the damping field that good mechanical performance, excellent heat resisting, resistant to chemical media property, weathering resistance and stability to aging have been applied to high-speed railway because of it; But preparing with chemical blowing process of generally using at present do not have independently bubble in the pure foamed thermoplastic elastomers; Bubble is big and residual chemical substance arranged; Instabilities such as its mechanical property can't satisfy the needs of high ferro damping fully.
Summary of the invention:
The object of the invention just is to overcome the deficiency that exists in the above-mentioned prior art, and provides a kind of high ferro damping backing plate to use little foamed thermoplastic elastomers, and this elastomeric prescription is simple, raw material is easy to get, with low cost, and each item of product is functional.
Another object of the present invention just provides the preparation method of above-mentioned high ferro damping backing plate with little foamed thermoplastic elastomers.
As above design; Technical scheme of the present invention is: a kind of high ferro damping backing plate is used little foamed thermoplastic elastomers, it is characterized in that: processed according to following weight proportion by following raw materials according: 20～80 parts of terpolymer EP rubbers, 20～80 parts of Vestolen PP 7052,0.1～10 part of linking agent, 0.3～60 part of crosslinking catalyst, 0.5～3 part of little whipping agent, 1～10 part of auxiliary agent.
Add softening agent 0-150 part in the above-mentioned raw materials, softening agent adopt NO and straight-chain paraffin oily both one of or the two mix according to arbitrary proportion.
Can add weighting material 0-50 part in the above-mentioned raw materials, weighting material is selected one of lime carbonate, talcum powder, permanent white and potter's clay for use.
Above-mentioned linking agent adopts superoxide, and crosslinking catalyst adopts maleimide.
Above-mentioned auxiliary agent adopts oxidation inhibitor, anti UV agent and lubricant three or wherein both press the arbitrary proportion mixing.
Above-mentioned terpolymer EP rubber be ethylene content 30%～75%, mooney viscosity is 30～80, ENB content any one in 1.0～7.0.
Above-mentioned Vestolen PP 7052 is in copolymerization and the homopolymerization, MI any one in 3～22.
Above-mentioned little whipping agent can adopt any one in two CFCs classes, hydro carbons and pressurized gas, the lower boiling hydrocarbon polymer.
Above-mentioned high ferro damping backing plate with the preparation method of little foamed thermoplastic elastomers is: with Vestolen PP 7052; Terpolymer EP rubber, little whipping agent, weighting material; Auxiliary agents etc. mix in the pot at height and mix; Add their in twin screw master spout, linking agent and softening agent are joined in the specified storage tank after according to 1: 5 dilution proportion mixing add with volume pump in the twin screw extruder intermediate zone, remaining softening agent adds with volume pump in intermediate zone, twin screw extruder rear end; The metering of twin screw feeding capacity and two volume pumps is through the control of feeding rotating speed; Wherein: engine speed: 300rpm, main feeding rotating speed: 280rpm, side feeding one rotating speed :～100rpm side feeding rotating speed two :～320rpm.
Moulding product of the present invention is that the aperture is tens microns the little foaming elastomer goods of closed pore, and its smooth in appearance is smooth, has independently bubble, the residual advantage of less, the no chemical substance of foaming.But while moulding product loss of weight 10%-40% of the present invention; When being hit; The energy that absorbs can increase 3-5 doubly; Can make original crack tip passivation, thereby improve the toughness and the antifatigue life-span of material, can satisfy the requirement such as mechanical property, elasticity, kinetic energy absorption of high ferro damping backing plate needs.
Embodiment:
Embodiment 1: a kind of high ferro damping backing plate is used little foamed thermoplastic elastomers, is processed according to following weight proportion by following raw materials according: terpolymer EP rubber 20Kg, Vestolen PP 7052 20Kg part, superoxide 0.1Kg, maleimide 0.3Kg, NO 20Kg, auxiliary agent 1Kg, lime carbonate 30Kg and two CFCs 0.5Kg.Above-mentioned terpolymer EP rubber be ethylene content 30%～75%, mooney viscosity is 30～80, ENB content any one in 1.0～7.0.Above-mentioned Vestolen PP 7052 is in copolymerization and the homopolymerization, MI any one in 3～22.Above-mentioned auxiliary agent adopts inhibitor and lubricating oil to mix.
Embodiment 2: a kind of high ferro damping backing plate is used little foamed thermoplastic elastomers, is processed according to following weight proportion by following raw materials according: terpolymer EP rubber 80Kg, Vestolen PP 7052 80Kg part, superoxide 10Kg, maleimide 60Kg, NO and straight-chain paraffin oil 150Kg, auxiliary agent 10Kg, talcum powder 50Kg and compressed nitrogen 3Kg.Above-mentioned terpolymer EP rubber be ethylene content 30%～75%, mooney viscosity is 30～80, ENB content any one in 1.0～7.0.Above-mentioned Vestolen PP 7052 is in copolymerization and the homopolymerization, MI any one in 3～22.Above-mentioned auxiliary agent adopts inhibitor and anti UV agent to mix.
Embodiment 3: a kind of high ferro damping backing plate is used little foamed thermoplastic elastomers, is processed according to following weight proportion by following raw materials according: terpolymer EP rubber 50Kg, Vestolen PP 7052 50Kg part, superoxide 5Kg, maleimide 30Kg, straight-chain paraffin oil 75Kg, auxiliary agent 5Kg, permanent white 25Kg and lower boiling hydrocarbon polymer 2Kg.Above-mentioned terpolymer EP rubber be ethylene content 30%～75%, mooney viscosity is 30～80, ENB content any one in 1.0～7.0.Above-mentioned Vestolen PP 7052 is in copolymerization and the homopolymerization, MI any one in 3～22.Above-mentioned auxiliary agent adopts inhibitor, anti UV agent and mix lubricant to form.
Above-mentioned high ferro damping backing plate with the preparation method of little foamed thermoplastic elastomers is: with Vestolen PP 7052; Terpolymer EP rubber, little whipping agent, weighting material; Auxiliary agents etc. mix in the pot at height and mix; Add their in twin screw master spout, linking agent and softening agent are joined in the specified storage tank after according to 1: 5 dilution proportion mixing add with volume pump in the twin screw extruder intermediate zone, remaining softening agent adds with volume pump in intermediate zone, twin screw extruder rear end; The metering of twin screw feeding capacity and two volume pumps is through the control of feeding rotating speed; Wherein: engine speed: 300rpm, main feeding rotating speed: 280rpm, side feeding one rotating speed :～100rpm side feeding rotating speed two :～320rpm.
Claims (9)
1. a high ferro damping backing plate is used little foamed thermoplastic elastomers, it is characterized in that: processed according to following weight proportion by following raw materials according: 20～80 parts of terpolymer EP rubbers, 20～80 parts of Vestolen PP 7052,0.1～10 part of linking agent, 0.3～60 part of crosslinking catalyst, 0.5～3 part of little whipping agent, 1～10 part of auxiliary agent.
2. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: add softening agent 0-150 part in the above-mentioned raw materials, softening agent adopt NO and straight-chain paraffin oily both one of or the two mix according to arbitrary proportion.
3. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: can add weighting material 0-50 part in the above-mentioned raw materials, weighting material is selected one of lime carbonate, talcum powder, permanent white and potter's clay for use.
4. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned linking agent adopts superoxide, and crosslinking catalyst adopts maleimide.
5. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned auxiliary agent adopts oxidation inhibitor, anti UV agent and lubricant three or wherein both press the arbitrary proportion mixing.
6. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned terpolymer EP rubber be ethylene content 30%～75%, mooney viscosity is 30～80, ENB content any one in 1.0～7.0.
7. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned Vestolen PP 7052 is in copolymerization and the homopolymerization, MI any one in 3～22.
8. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned little whipping agent can adopt any one in two CFCs classes, hydro carbons and pressurized gas, the lower boiling hydrocarbon polymer.
9. high ferro damping backing plate according to claim 1 is used little foamed thermoplastic elastomers, it is characterized in that: above-mentioned high ferro damping backing plate with the preparation method of little foamed thermoplastic elastomers is: with Vestolen PP 7052, and terpolymer EP rubber; Little whipping agent; Weighting material, auxiliary agent etc. mix in the pot at height and mix, and add them in the twin screw master spout; Join in the specified storage tank after linking agent and softening agent mixed according to 1: 5 dilution proportion and add with volume pump in the twin screw extruder intermediate zone; Remaining softening agent adds with volume pump in intermediate zone, twin screw extruder rear end, and the metering of twin screw feeding capacity and two volume pumps is through the control of feeding rotating speed, wherein: engine speed: 300rpm; Main feeding rotating speed: 280rpm, side feeding one rotating speed :～100rpm side feeding rotating speed two :～320rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105466118A CN102464831A (en) | 2010-11-17 | 2010-11-17 | Microcellular foam thermoplastic elastomer for high-speed railway damping base plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105466118A CN102464831A (en) | 2010-11-17 | 2010-11-17 | Microcellular foam thermoplastic elastomer for high-speed railway damping base plate and preparation method thereof |
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| CN102464831A true CN102464831A (en) | 2012-05-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289213A (en) * | 2013-05-22 | 2013-09-11 | 易宝（福建）高分子材料股份公司 | EPDM/PP/TPE (Ethylene Propylene Diene Monomer/Polypropylene/Thermoplastic Elastomer) ternary blended closed-pore foaming material and preparation method thereof |
| CN103289192A (en) * | 2013-05-22 | 2013-09-11 | 易宝（福建）高分子材料股份公司 | EPDM/PP (Ethylene Propylene Diene Monomer/Polypropylene) binary blended closed-pore foaming material and preparation method thereof |
| CN104072881A (en) * | 2013-03-28 | 2014-10-01 | 滁州格美特科技有限公司 | Thermoplastic micro-foaming damping material and preparation method thereof |
| CN106674762A (en) * | 2016-12-13 | 2017-05-17 | 芜湖集拓橡胶技术有限公司 | Formula of seamless connection ethylene propylene diene monomer foaming connecting corner |
| CN107603012A (en) * | 2017-09-25 | 2018-01-19 | 安徽华祺汽车装饰有限公司 | A kind of preparation method of high-comfort automobile foam cushion |
| CN107739456A (en) * | 2017-08-26 | 2018-02-27 | 南通成山高分子材料有限公司 | A kind of polymer rubber beam of service life length |
| CN108884257A (en) * | 2016-03-31 | 2018-11-23 | 积水化学工业株式会社 | Crosslinked polyolefin resin foaming body and the formed body for using it |
| CN109486030A (en) * | 2018-09-12 | 2019-03-19 | 浙江科普特新材料有限公司 | A kind of integration fretting map thermoplastic vulcanizate composition and preparation method thereof |
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| DE10005862A1 (en) * | 2000-02-10 | 2001-08-23 | Moeller Plast Gmbh | Making soft foam-faced, hard plastic component especially suitable for vehicle cladding concealing airbag, employs physical foaming agent e.g. inert gas or microcapsules |
| CN1511172A (en) * | 2001-02-23 | 2004-07-07 | �����ι�˾ | Foam cushion and method of making and using same |
| JP2005344082A (en) * | 2004-06-07 | 2005-12-15 | Inoac Corp | Method for manufacturing propylene polymer foam |
| CN101560315A (en) * | 2008-04-14 | 2009-10-21 | 上海大裕橡胶制品有限公司 | Modified foaming ethylene propylene diene rubber |
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2010
- 2010-11-17 CN CN2010105466118A patent/CN102464831A/en active Pending
Patent Citations (4)
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| DE10005862A1 (en) * | 2000-02-10 | 2001-08-23 | Moeller Plast Gmbh | Making soft foam-faced, hard plastic component especially suitable for vehicle cladding concealing airbag, employs physical foaming agent e.g. inert gas or microcapsules |
| CN1511172A (en) * | 2001-02-23 | 2004-07-07 | �����ι�˾ | Foam cushion and method of making and using same |
| JP2005344082A (en) * | 2004-06-07 | 2005-12-15 | Inoac Corp | Method for manufacturing propylene polymer foam |
| CN101560315A (en) * | 2008-04-14 | 2009-10-21 | 上海大裕橡胶制品有限公司 | Modified foaming ethylene propylene diene rubber |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104072881B (en) * | 2013-03-28 | 2018-03-06 | 滁州格美特科技有限公司 | A kind of thermoplasticity fretting map vibration-absorptive material and preparation method thereof |
| CN104072881A (en) * | 2013-03-28 | 2014-10-01 | 滁州格美特科技有限公司 | Thermoplastic micro-foaming damping material and preparation method thereof |
| CN103289192A (en) * | 2013-05-22 | 2013-09-11 | 易宝（福建）高分子材料股份公司 | EPDM/PP (Ethylene Propylene Diene Monomer/Polypropylene) binary blended closed-pore foaming material and preparation method thereof |
| CN103289192B (en) * | 2013-05-22 | 2015-10-14 | 易宝（福建）高分子材料股份公司 | Blended closed cell foamed material of EPDM/PP binary and preparation method thereof |
| CN103289213B (en) * | 2013-05-22 | 2015-12-09 | 易宝（福建）高分子材料股份公司 | EPDM/PP/TPE tertiary blending closed cell foamed material and preparation method thereof |
| CN103289213A (en) * | 2013-05-22 | 2013-09-11 | 易宝（福建）高分子材料股份公司 | EPDM/PP/TPE (Ethylene Propylene Diene Monomer/Polypropylene/Thermoplastic Elastomer) ternary blended closed-pore foaming material and preparation method thereof |
| CN108884257A (en) * | 2016-03-31 | 2018-11-23 | 积水化学工业株式会社 | Crosslinked polyolefin resin foaming body and the formed body for using it |
| US11118043B2 (en) | 2016-03-31 | 2021-09-14 | Sekisui Chemical Co., Ltd. | Crosslinked polyolefin resin foam, and molded article using same |
| CN108884257B (en) * | 2016-03-31 | 2022-07-05 | 积水化学工业株式会社 | Crosslinked polyolefin resin foam and molded article using same |
| CN106674762A (en) * | 2016-12-13 | 2017-05-17 | 芜湖集拓橡胶技术有限公司 | Formula of seamless connection ethylene propylene diene monomer foaming connecting corner |
| CN107739456A (en) * | 2017-08-26 | 2018-02-27 | 南通成山高分子材料有限公司 | A kind of polymer rubber beam of service life length |
| CN107603012A (en) * | 2017-09-25 | 2018-01-19 | 安徽华祺汽车装饰有限公司 | A kind of preparation method of high-comfort automobile foam cushion |
| CN109486030A (en) * | 2018-09-12 | 2019-03-19 | 浙江科普特新材料有限公司 | A kind of integration fretting map thermoplastic vulcanizate composition and preparation method thereof |
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Application publication date: 20120523 |