CN103642202B - A kind of ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics - Google Patents
A kind of ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics Download PDFInfo
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- CN103642202B CN103642202B CN201310685048.6A CN201310685048A CN103642202B CN 103642202 B CN103642202 B CN 103642202B CN 201310685048 A CN201310685048 A CN 201310685048A CN 103642202 B CN103642202 B CN 103642202B
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Abstract
The invention discloses a kind of ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics, the weight percent of its component and each component is: modified ceramic powder 5% ~ 20%, epoxy resin 10% ~ 40%, base polyurethane prepolymer for use as 50% ~ 80%, catalyzer 1% ~ 4%, solidifying agent 4% ~ 20%.This network elastomer can be used for making conveyor roller.Under the effect of modified ceramic powder, elastomeric wear resisting property improves further, and dimensional stability there has also been certain improvement.Solve conventional idler by the carrying roller of described elastomers and can not have high abrasion, high tenacity, this technical bottleneck high temperature resistant, low temperature resistant simultaneously.
Description
Technical field
The present invention relates to elastomerics, particularly relate to ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics.
Background technology
Carrier roller of belt conveyer needs to use the material with characteristics such as good wear resistance, erosion resistance, anti-impact force, light weight, thermotolerances to make, at present, carrier roller of belt conveyer mainly comprises the several types such as steel carrying roller, plastic conveyer roller, carrier roller, owing to making the limitation of material, the carrying roller of these types shows various problems:
Steel carrying roller: wear no resistance, and wearing and tearing rear surface easily produces burr, causes scratching belt, causes great financial loss; Easily get rusty, when especially using under acid, alkali, salt environment, the life-span is extremely short; Quality weight, be not easy to transport, installation and maintenance, cause tooling cost and maintenance cost higher.
, equally also there is the shortcomings such as fragility is large, quality heavy, install inconvenience, concentricity difference in carrier roller: although have the advantages such as wear-resisting, anti-oxidant and acid and alkali-resistance.
Common high-polymer supporting roller: there is the advantages such as quality is light, shock resistance, corrosion-resistant, noise is low, but the performances such as it is wear-resisting, heat-resisting, weather-proof, mechanical strength obviously can not be met the need of market.
Therefore, the material synthesizing a kind of superior performance is very important with the requirement meeting carrier roller of belt conveyer.
Summary of the invention
In view of this, the object of the invention is to propose a kind of ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics, the advantages such as this elastomerics has light weight, high tenacity, high temperature resistant, low temperature resistant, corrosion-resistant, noise is low, weather-proof, wear-resisting.
Based on above-mentioned purpose, the invention provides a kind of ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics, the weight percent of its component and each component is: modified ceramic powder 5% ~ 20%, epoxy resin 10% ~ 40%, base polyurethane prepolymer for use as 50% ~ 80%, catalyzer 1% ~ 4%, solidifying agent 4% ~ 20%.
Described modified ceramic powder can use following methods to prepare: the surface with atomizer, described surface treatment agent being dispersed in described ceramics powder, reacts 2 ~ 4 hours, obtain described modified ceramic powder at being then placed in 80 ~ 130 DEG C.
Described ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks is elastomeric can use following method to prepare: mixed by the base polyurethane prepolymer for use as of modified ceramic powder, epoxy resin and melting, vacuumize the bubble drained in mixed solution; Then, under the environment of 90 DEG C ~ 140 DEG C, in mixed solution, catalyzer and solidifying agent is added; Finally inject mould and be solidified into elastomerics under the environment of 70 DEG C ~ 150 DEG C.
Described ceramics powder is selected from least one in silicon nitride, silicon carbide, silicon-dioxide, talcum powder and aluminum oxide; Described surface treatment agent is selected from least one in silane coupling agent, titanic acid ester and Aluminate.
Described epoxy resin is selected from the one in bisphenol A epoxide resin, brominated epoxy resin and novolac epoxy; Described base polyurethane prepolymer for use as is polyvalent alcohol and isocyanate reaction gained; Described polyvalent alcohol is polyester polyol or polyether glycol; Described isocyanic ester is selected from least one in 2,4 toluene diisocyanate, 2,6-tolylene diisocyanates and 4,4-diphenylmethanediisocyanate.
Described catalyzer is dibutyltin dilaurate; Described solidifying agent is diamino dichloro ditane.
Above-mentioned ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics can be applied on the carrying roller of transfer roller.
Effect of the present invention is: described ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics utilizes the mode of this uniqueness of interpenetrating(polymer)networks by urethane and epoxy resin organically in conjunction with as a whole, has both remained the high tenacity of urethane, the advantage such as wear-resisting; The advantages such as epoxy resin is high temperature resistant, corrosion-resistant are had both again; Meanwhile, under the effect of modified ceramic powder, elastomeric wear resisting property improves further, and dimensional stability there has also been certain improvement.Solve conventional idler by the carrying roller of described elastomers and can not have high abrasion, high tenacity, this technical bottleneck high temperature resistant, low temperature resistant simultaneously.
Accompanying drawing explanation
Fig. 1 is the elastomeric preparation technology's schematic flow sheet of ceramics powder of the present invention modified polyurethane/Epoxy Interpenetration Polymer Networks.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment 1
First with atomizer, silane coupling agent 560 is dispersed in the 800 talcous surfaces of order uniformly, reacts 2 hours under being then placed in the environment of 130 DEG C, obtain modified ceramic powder; Use polyethylene glycol oxalate, 2,4 toluene diisocyanate are obtained by reacting base polyurethane prepolymer for use as.Then the base polyurethane prepolymer for use as high-speed mixing of modified ceramic powder, bisphenol A epoxide resin and melting is uniformly dispersed.The weight ratio of each component added is modified ceramic powder 10%, bisphenol A epoxide resin 30%, base polyurethane prepolymer for use as 50%.Vacuumize the bubble drained in mixed solution; Then under the environment of 100 DEG C, the catalyzer dibutyltin dilaurate of 2% and the solidifying agent diamino dichloro ditane of 8% is added in mixed solution, finally inject mould and solidify under the environment of 110 DEG C, wherein base polyurethane prepolymer for use as and epoxy resin polymerization reaction take place, and two quasi-molecule interchains interspersed formation inierpeneirating network structure elastomer material mutually.
The hardness (shore A) of the network elastomer obtained is 98, and tensile strength is 50Mpa, and tensile yield is 350%, and Akron abrasion is 0.008, and heat-drawn wire is 120 degrees Celsius.Adding than the most obvious advantage of ordinary epoxy resin modified polyurethane for significantly improving wear resistance and thermotolerance of ceramics powder.
Embodiment 2
First with atomizer, titanic acid ester is dispersed in uniformly the surface of silicon carbide powder, reacts 3 hours under being then placed in the environment of 120 DEG C, obtain modified ceramic powder; Use phthalic anhydride Diethylene Glycol multipolymer, 2,6-tolylene diisocyanate is obtained by reacting base polyurethane prepolymer for use as.Then the base polyurethane prepolymer for use as high-speed mixing of modified ceramic powder, novolac epoxy and melting is uniformly dispersed.The weight ratio of each component added is modified ceramic powder 20%, novolac epoxy 10%, base polyurethane prepolymer for use as 60%.Vacuumize the bubble drained in mixed solution; Then under the environment of 100 DEG C, the catalyzer dibutyltin dilaurate of 1% and the solidifying agent diamino dichloro ditane of 9% is added in mixed solution, finally inject mould and solidify under the environment of 90 DEG C, wherein base polyurethane prepolymer for use as and epoxy resin polymerization reaction take place, and two quasi-molecule interchains interspersed formation inierpeneirating network structure elastomer material mutually.
The hardness (shore A) of the network elastomer obtained is 99, and tensile strength is 60Mpa, and tensile yield is for being 200%, and Akron abrasion is 0.01, and heat-drawn wire is 125 degrees Celsius.Adding than the most obvious advantage of ordinary epoxy resin modified polyurethane for significantly improving wear resistance and thermotolerance of ceramics powder.
Embodiment 3
First with atomizer, Aluminate is dispersed in uniformly the surface of alumina powder, reacts 4 hours under being then placed in the environment of 80 DEG C, obtain modified ceramic powder; Use polytetrahydrofuran diol, 4,4-diphenylmethanediisocyanate is obtained by reacting base polyurethane prepolymer for use as.Then the base polyurethane prepolymer for use as high-speed mixing of modified ceramic powder, brominated epoxy resin and melting is uniformly dispersed.The weight ratio of each component added is modified ceramic powder 5%, brominated epoxy resin 15%, base polyurethane prepolymer for use as 65%.Vacuumize the bubble drained in mixed solution; Then under the environment of 100 DEG C, the catalyzer dibutyltin dilaurate of 4% and the solidifying agent diamino dichloro ditane of 11% is added in mixed solution, finally inject mould and solidify under the environment of 130 DEG C, wherein base polyurethane prepolymer for use as and epoxy resin polymerization reaction take place, and two quasi-molecule interchains interspersed formation inierpeneirating network structure elastomer material mutually.
The hardness (shore A) of the network elastomer obtained is 90, and tensile strength is 45Mpa, and tensile yield is for being 450%, and Akron abrasion is 0.009, and heat-drawn wire is 112 degrees Celsius.Adding than the most obvious advantage of ordinary epoxy resin modified polyurethane for significantly improving wear resistance and thermotolerance of ceramics powder.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics, it is characterized in that, the weight percent of its component and each component is: modified ceramic powder 5% ~ 20%, epoxy resin 10% ~ 40%, base polyurethane prepolymer for use as 50% ~ 80%, catalyzer 1% ~ 4%, solidifying agent 4% ~ 20%.
2. network elastomer according to claim 1, it is characterized in that, described modified ceramic powder uses following methods preparation: the surface with atomizer, surface treatment agent being dispersed in described ceramics powder, reacts 2 ~ 4 hours, obtain described modified ceramic powder at being then placed in 80 ~ 130 DEG C.
3. network elastomer according to claim 2, is characterized in that, described ceramics powder is selected from least one in silicon nitride, silicon carbide, silicon-dioxide, talcum powder and aluminum oxide; Described surface treatment agent is selected from least one in silane coupling agent, titanic acid ester and Aluminate.
4. network elastomer according to claim 1, is characterized in that, described epoxy resin is selected from the one in bisphenol A epoxide resin, brominated epoxy resin and novolac epoxy; Described base polyurethane prepolymer for use as is polyvalent alcohol and isocyanate reaction gained; Described polyvalent alcohol is polyester polyol or polyether glycol; Described isocyanic ester is selected from least one in 2,4 toluene diisocyanate, 2,6-tolylene diisocyanates and 4,4-diphenylmethanediisocyanate.
5. network elastomer according to claim 1, is characterized in that, described catalyzer is dibutyltin dilaurate; Described solidifying agent is diamino dichloro ditane.
6. network elastomer according to claim 1, it is characterized in that, prepared by use following methods: use surface treatment agent to carry out graft modification to ceramics powder surface and obtain described modified ceramic powder, the base polyurethane prepolymer for use as of described modified ceramic powder, epoxy resin and melting is mixed into mixed solution, vacuumizes the bubble drained in described mixed solution; Then under the environment of 90 DEG C ~ 140 DEG C, in described mixed solution, add catalyzer and solidifying agent, under 70 DEG C ~ 150 DEG C environment, be solidified into elastomerics.
7. network elastomer according to claim 6, is characterized in that, described ceramics powder is selected from least one in silicon nitride, silicon carbide, silicon-dioxide, talcum powder and aluminum oxide; Described surface treatment agent is selected from least one in silane coupling agent, titanic acid ester and Aluminate.
8. network elastomer according to claim 6, is characterized in that, described epoxy resin is selected from the one in bisphenol A epoxide resin, brominated epoxy resin and novolac epoxy; Described base polyurethane prepolymer for use as is polyvalent alcohol and isocyanate reaction gained; Described polyvalent alcohol is polyester polyol or polyether glycol; Described isocyanic ester is selected from least one in 2,4 toluene diisocyanate, 2,6-tolylene diisocyanates and 4,4-diphenylmethanediisocyanate.
9. ceramics powder modified polyurethane/Epoxy Interpenetration Polymer Networks elastomerics according to claim 6, is characterized in that, described catalyzer is dibutyltin dilaurate; Described solidifying agent is diamino dichloro ditane.
10. the application of network elastomer on conveyer carrying roller as claimed in claim 1.
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| CN105238249B (en) * | 2015-10-28 | 2017-12-15 | 绍兴县寿春针纺织有限公司 | A kind of Fabric transfer coating and preparation method thereof |
| CN105820506B (en) * | 2016-04-11 | 2018-05-01 | 南京信息职业技术学院 | A kind of preparation method of epoxy resin/silicon nitride composite material |
| CN106084744A (en) * | 2016-06-08 | 2016-11-09 | 东莞市吉鑫高分子科技有限公司 | A kind of high permeation waterproof humidity-permeant Polyurethane Thermoplastic Elastomer and preparation method thereof |
| CN106366286A (en) * | 2016-09-30 | 2017-02-01 | 无锡市长安曙光手套厂 | High-permeability waterproof moisture-permeable thermoplastic polyurethane elastomer and preparation method thereof |
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| CN107418155A (en) * | 2017-08-09 | 2017-12-01 | 邓韵 | A kind of ceramic elastomeric material containing TPO |
| CN107746546A (en) * | 2017-09-06 | 2018-03-02 | 嘉善金泰工程塑业有限公司 | A kind of epoxy resin hatch cover of ship pad and its manufacture method |
| CN107556868A (en) * | 2017-09-13 | 2018-01-09 | 合肥摩凯新材料科技有限公司 | A kind of cement plant deduster, pipeline and the out of stock ammoniacal liquor anticorrosion antiwear renovation agent of flue gas |
| CN109321085A (en) * | 2018-09-14 | 2019-02-12 | 浙江万华不锈钢有限公司 | Without the soft stainless steel of magnetic and its processing method |
| CN110746566A (en) * | 2019-11-12 | 2020-02-04 | 东莞市米儿塑胶原料有限公司 | Thermoplastic polyurethane matrix resin |
| CN112897938A (en) * | 2021-03-05 | 2021-06-04 | 洛阳嘉斯诺泵业制造有限公司 | Resin ceramic wear-resistant composite material and preparation method thereof |
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Address after: A 417600 area in Xinhua County of Hunan Province Red Industrial Park Patentee after: Crane boom manufacturing method Address before: Loudi City, Hunan Industrial Park, 417600 Red County of Xinhua Province Patentee before: Hunan Yinghong Science and Technology Co., Ltd. |