CN102391638B - High-damp structure composition and processing method thereof as well as shock-insulating rubber support comprising structure - Google Patents
High-damp structure composition and processing method thereof as well as shock-insulating rubber support comprising structure Download PDFInfo
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- CN102391638B CN102391638B CN 201110204987 CN201110204987A CN102391638B CN 102391638 B CN102391638 B CN 102391638B CN 201110204987 CN201110204987 CN 201110204987 CN 201110204987 A CN201110204987 A CN 201110204987A CN 102391638 B CN102391638 B CN 102391638B
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Abstract
The invention relates a high-damp structure composition and a processing method thereof as well as a shock-insulating rubber support comprising the structure. The structure has light weight, high strength and ageing resistance and is easy to process while high damp is ensured. The structure composition comprises the following components in parts by weight: 100 parts of thermoplastic polyurethane,20-50 parts of glass fiber, 30-100 parts of damping agents and 1-2 parts of stearic acid. The processing method comprises: 1) activation; 2) plastication; 3) feeding; and 4) formation. According to the invention, thermoplastic polyurethane is used as a main body, the glass fiber is used as a reinforcing agent, and flaky mica powder, graphite powder and silica powder are used as the damping agents. After an inorganic high-damp filling material is added, a rigid space structure is formed in the material so that the elasticity of a prepared product is further reduced, and simultaneously, the prepared product has better high damp property and easily-processing property. The high-damp structure composition provided by the invention can substitute for the lead core of the traditional lead core shock-insulating rubber support.
Description
Technical field
The shock insulation rubber bearing that the present invention relates to a kind of Novel high-damping structural part material, working method and include this structural part.
Background technology
Meet the horizontal characteristic of shockproof requirements for shock insulation rubber bearing is had, Japan proposed a kind of design concept of lead core rubber support previously, and corresponding product is provided.After it is pressed into lead for retractable pencil, combines together with rubber support and to follow transverse shear deformation, this kind bearing is the one-piece type earthquake isolating equipment of damping mechanism that is made of the stable restoring means of rubber support and plumbous energy absorbing device." isolation structure design " (Architectural Institute of Japan's work, Earthquake Press) carried out more detailed explanation to this product.Lead is a kind of soft heavy metal, is a kind of malleable weak metal, has preferably damping capacity, but plumbous weight is large, price is high, toxic, pollution is arranged, do not meet the growth requirement of society.
Summary of the invention
The present invention is directed to above problem, provide a kind of when guaranteeing high damping, lightweight, intensity is high, high damping structural part composition, the working method of ageing-resistant, easy processing and comprise the shock insulation rubber bearing of this structural part.
High damping structural part composition of the present invention comprises following component (weight part): 1 ~ 2 part of 30 ~ 100 parts of 100 parts of thermoplastic polyurethanes, 20 ~ 50 parts in glass fibre, damping agent and stearic acid.
Described damping agent comprises in flaky mica powder, Graphite Powder 99, the silicon dioxide powder one or more compound.
The working method of high damping structural part composition of the present invention, according to the following steps processing:
1), activation treatment; Adopt silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre, stand-by;
2), refining is moulded; Plasticated 4 ~ 5 minutes in the plasticating equipment with 175 ~ 185 ℃ of thermoplastic polyurethane inputs;
3), feed intake; Aforementioned activation glass fibre and stearic acid are dropped in the thermoplastic polyurethane of front step mixing 5 ~ 7 minutes; Then added described damping agent mixing 8 ~ 10 minutes again;
4), moulding; Upper step material is machined as section bar by extrusion moulding; After the cooling, cut and make structural part.
The shock insulation rubber bearing that comprises high damping structural part composition of the present invention, described shock insulation rubber bearing has centre hole, described high damping structural part cut become with the adaptive shape of described centre hole after, the high damping structural part after described the cutting is embedded in the described centre hole.
It is main body that the present invention adopts thermoplastic polyurethane; Take glass fibre as strengthening agent; Take flaky mica powder, Graphite Powder 99, silicon dioxide powder as damping agent; And to be aided with stearic acid be processing aid, forms through special processing and fabricating.Thermoplastic polyurethane is comprised of soft section of flexibility and the hard section of rigidity, contain a large amount of hydrogen bonds, because the incompatible microphase-separated that caused of thermodynamics of hard section and soft section, this constructional feature of urethane has been given the performance of its excellence, therefore having higher damping loss factor, is a kind of reasonable damping material.After adding the glass fibre of activated processing, glass fibre is combined more firmly with main body, and then the elasticity of thermoplastic polyurethane and the high rigidity of glass fibre organically can be combined, significantly improve rigidity modulus, and then so that finished product have the characteristics such as high strength, easy processing.Add flaky mica powder, behind the inorganic high damping fillers such as Graphite Powder 99, silicon dioxide powder, in material, consist of the space structure of rigidity, the elasticity of the product of making is further reduced, have simultaneously better high damping properties and workability energy.Lead for retractable pencil in the alternative traditional lead rubber bearing of the present invention.
Embodiment
High damping structural part composition of the present invention comprises following component (weight part): 1 ~ 2 part of 30 ~ 100 parts of 100 parts of thermoplastic polyurethanes, 20 ~ 50 parts in glass fibre, damping agent and stearic acid.
Described damping agent comprises in flaky mica powder, Graphite Powder 99, the silicon dioxide powder one or more compound.
The working method of high damping structural part composition of the present invention, according to the following steps processing:
1), activation treatment; Adopt silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre, stand-by;
2), refining is moulded; Plasticated 4 ~ 5 minutes in the plasticating equipment with 175 ~ 185 ℃ of thermoplastic polyurethane inputs;
3), feed intake; Aforementioned activation glass fibre and stearic acid are dropped in the thermoplastic polyurethane of front step mixing 5 ~ 7 minutes; Then added described damping agent mixing 8 ~ 10 minutes again;
4), moulding; Upper step material is machined as section bar by extrusion moulding; After the cooling, cut and make structural part.
The shock insulation rubber bearing that comprises high damping structural part composition of the present invention, described shock insulation rubber bearing has centre hole, described high damping structural part cut become with the adaptive shape of described centre hole after, the high damping structural part after described the cutting is embedded in the described centre hole.
Below take preparation shock insulation rubber bearing cylindrical damping conductor as example specifies technical scheme of the present invention:
Embodiment one
Get: 100 kilograms of (major ingredient) thermoplastic polyurethanes,
20 kilograms in (strengthening agent) glass fibre,
10 kilograms of (damping agent) flaky mica powder, 15 kilograms of Graphite Powder 99s, 15 kilograms of silicon dioxide powders,
1 kilogram of (processing aid) stearic acid,
Adopt double roller plastic-making device, 185 ℃ of roller temperature.Adopt first silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre; Thermoplastic polyurethane is plasticated 4 minutes again, then added glass fibre and stearic acid orientation mixing (being that thermoplastic polyurethane remains same trend, consistent, orderly to make " fiber " direction as far as possible) 7 minutes; Add flaky mica powder, mixing 10 minutes of Graphite Powder 99, silicon dioxide powder are put into injection moulding machine with mixing uniform test portion and are injected the section bar that the previously prepd mould is cooled to the cross section circle again; Again by cutting into the structural part adaptive with the shock insulation rubber bearing centre hole.
Embodiment two
Get: 100 kilograms of (major ingredient) thermoplastic polyurethanes,
40 kilograms in (strengthening agent) glass fibre,
20 kilograms of (damping agent) flaky mica powder, 25 kilograms of Graphite Powder 99s, 25 kilograms of silicon dioxide powders,
1.5 kilograms of (processing aid) stearic acid,
Adopt double roller plastic-making device, 180 ℃ of roller temperature.Adopt first silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre; Thermoplastic polyurethane is plasticated 5 minutes again, then added glass fibre and stearic acid orientation mixing (being that thermoplastic polyurethane remains same trend, consistent, orderly to make " fiber " direction as far as possible) 5 minutes; Add flaky mica powder, mixing 8 minutes of Graphite Powder 99, silicon dioxide powder are put into Bitruder with mixing uniform test portion and are injected the section bar that the previously prepd mould is cooled to the cross section circle again; Again by cutting into the structural part adaptive with the shock insulation rubber bearing centre hole.
Embodiment three
Get: 100 kilograms of (major ingredient) thermoplastic polyurethanes,
20 kilograms in (strengthening agent) glass fibre,
10 kilograms of (damping agent) flaky mica powder, 15 kilograms of Graphite Powder 99s, 15 kilograms of silicon dioxide powders,
1 kilogram of (processing aid) stearic acid,
Adopt double roller plastic-making device, 175 ℃ of roller temperature.Adopt first silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre; Thermoplastic polyurethane is plasticated 4 minutes again, then added glass fibre and stearic acid orientation mixing (being that thermoplastic polyurethane remains same trend, consistent, orderly to make " fiber " direction as far as possible) 6 minutes; Add flaky mica powder, mixing 9 minutes of Graphite Powder 99, silicon dioxide powder are put into injection moulding machine with mixing uniform test portion and are injected the section bar that the previously prepd mould is cooled to the cross section circle again; Again by cutting into the structural part adaptive with the shock insulation rubber bearing centre hole.
In addition, composition of the present invention can also be applicable to other damping occasion, such as high damping sheet material, high damping tubing etc.High damping material of the present invention is applied to the damping conductor in the shock insulation rubber bearing, can substitute lead for retractable pencil of the prior art.
Claims (2)
1. a damping structure spare composition is characterized in that, described composition comprises following component: thermoplastic polyurethane 100 weight parts, glass fibre 20 ~ 50 weight parts, damping agent 30 ~ 100 weight parts and stearic acid 1 ~ 2 weight part; Described damping agent comprises in flaky mica powder, Graphite Powder 99, the silicon dioxide powder one or more compound;
According to the following steps processing:
1), activation treatment; Adopt silane coupling agent that glass fibre is carried out surface activation process, get the activation glass fibre, stand-by;
2), refining is moulded; Plasticated 4 ~ 5 minutes in the plasticating equipment with 175 ~ 185 ℃ of thermoplastic polyurethane inputs;
3), feed intake; Aforementioned activation glass fibre and stearic acid are dropped in the thermoplastic polyurethane of front step directed mixing 5 ~ 7 minutes; Then added described damping agent mixing 8 ~ 10 minutes again;
4), moulding; Upper step material is machined as section bar by extrusion moulding; After the cooling, cut and make structural part.
2. shock insulation rubber bearing that comprises the described damping structure spare composition of claim 1, it is characterized in that, described shock insulation rubber bearing has centre hole, described damping structure spare cut become with the adaptive shape of described centre hole after, the damping structure spare after described the cutting is embedded in the described centre hole.
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| CN 201110204987 CN102391638B (en) | 2011-07-21 | 2011-07-21 | High-damp structure composition and processing method thereof as well as shock-insulating rubber support comprising structure |
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| CN 201110204987 CN102391638B (en) | 2011-07-21 | 2011-07-21 | High-damp structure composition and processing method thereof as well as shock-insulating rubber support comprising structure |
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| CN102391638B true CN102391638B (en) | 2013-02-27 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102977409A (en) * | 2012-12-18 | 2013-03-20 | 连云港东海硅微粉有限责任公司 | High-performance mixed enhanced filler and preparation method for same |
| CN103897287A (en) * | 2012-12-27 | 2014-07-02 | 浙江艾迪雅科技股份有限公司 | Multimode organic filler/polymer composite damping material and manufacturing method thereof |
| CN103897262B (en) * | 2012-12-27 | 2018-06-05 | 浙江艾迪雅科技股份有限公司 | A kind of low-cost high-efficiency acoustic material and preparation method thereof |
| CN103351492B (en) * | 2013-07-29 | 2015-07-08 | 青岛爱尔家佳新材料有限公司 | Damping rubber plate and preparation method thereof |
| CN105602233B (en) * | 2016-02-02 | 2018-08-14 | 江苏同盟汽车零部件实业有限公司 | A kind of economic and environment-friendly high damping properties damping sheet and preparation method thereof |
| CN111574819A (en) * | 2020-04-17 | 2020-08-25 | 深圳和畅电磁材料有限公司 | High-performance wave-absorbing heat-insulating composite material and preparation method thereof |
| CN112679808B (en) * | 2020-12-24 | 2023-04-28 | 中裕铁信交通科技股份有限公司 | Low-creep high-damping rubber material and preparation method and application thereof |
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| EP1643485A2 (en) * | 2004-10-01 | 2006-04-05 | Guarto - Guarnizioni Torino A Responsabilita' Limitata | Acoustically insulating material, acoustically absorbing material, acoustically damping material |
| CN102093528A (en) * | 2011-01-04 | 2011-06-15 | 沈阳化工大学 | Preparation method of mixed polyether-polyester polyurethane/epoxy damping composite |
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Patent Citations (2)
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| EP1643485A2 (en) * | 2004-10-01 | 2006-04-05 | Guarto - Guarnizioni Torino A Responsabilita' Limitata | Acoustically insulating material, acoustically absorbing material, acoustically damping material |
| CN102093528A (en) * | 2011-01-04 | 2011-06-15 | 沈阳化工大学 | Preparation method of mixed polyether-polyester polyurethane/epoxy damping composite |
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| 王宝柱,黄微波,黄宝琛,等.聚醚型聚氨酯的阻尼性能.《合成橡胶工业》.2004,第27卷(第5期), |
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