抗過載緩沖吸能樹脂制備及性能研究.pdf

1、西南科技大學(xué)碩士學(xué)位論文抗過載緩沖吸能樹脂制備及性能研究姓名：張嚴(yán)金申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：分析化學(xué)指導(dǎo)教師：周元林20110613西南科技大學(xué)碩士研究生學(xué)位論文第ll頁(yè)●●__●_●——_—_—————————————————_——_—●—————————————————_—————————————————一一。一Abstraot：Dampingmaterialsarenewfunctionalmaterialswhichcoulda

2、bsorbmechanicalenergyandtranslateitintoheatandreleaseMaeromoleculematerialiswidelyusedasdampingmaterialduetoitsownviscoelasticityTheuseofvisco—elasticityofpolymers，translatethemechanicalvibrationenergyintoheatenergyandre

3、lease，SOastoathievethepurposeofreducingvibrationandnoiseWhereas，commonmacromoleculematerialhasaquitenarroweffectivedampingtemperaturerangeingeneral；maeromoleculedampingmaterialshouldhaveawidetemperaturerangeandhighdampin

4、glossfactorvalueasapracticalapplicationTherefore，modificationofmacromoleculematerialsbecomestheinevitablechoicetopreparedampingmaterials，mostpeoplepreparemacromoleculedampingmaterialsbymechanicalblendsTheIPNshasbeenexten

5、sivelystudiedinrecentyearsthecomponentscanbeeffectivelymixedtogethertformawidetemperaturedomainofhighdampingmacromoleeulematerialsThispaperattemptstousethemoleculardesign，usingATRPtechnologywithmaeromolecularBr—PDMS—Bras

6、initiator，orderlyputthemethylbutylpropionateandstyrenecomponenttogethertoformCOntrolledmolecularweightandmolecularweightdistributionmultiblockcopolymersWediSCUSSthevariouscomponentsonthedampingproperties，PDMShasanimpacto

7、ndampingproperties0tmultiblockpolymersandmakesthedampingpropertiesatlOWtemperaturesisnotobviousduetoitslowlevelgettingatanfi01inthe25—25℃，themaximumdampingfactortan6canbeupto18atitsglasstransitiontemperature；PShassomedam

8、pingpropertyathighertemperature，thereisadampingpeak，tanSO1，anduptoO8initsglasstransitiontemperaturerangeWealsodiscussthecompatibility～一——————————________——_—____，—______——_—___●_______——●——●—__—_____—_____●●_●__●_●_____一