Special Aspects on Aging of Elastomers and Characterization，2009国际橡胶会议（6.30-7.2，伦敦，巴黎）-中国聚合物网,论文下载

Special Aspects on Aging of Elastomers and Characterization

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关键词：

Elastomers

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340K

所属学科：

分子表征

来源：

2009国际橡胶会议（6.30-7.2，伦敦，巴黎）

简介：

Theservicelifeofelastomercomponentsisdeterminedlargelybyagingprocesses.Overthecourseoftimemechanical-dynamic(fatigue),oxidationprocesses,temperature,expositiontoUVlight(photooxidation)andtoaggressivemedialeadtoirreversiblechangesinthephysicalandchemicalpropertiesofanelastomermaterial,oftenresultinginprematurefunctionalfailureofthecomponentconcerned.Alreadyinthemixingandvulcanizationprocessduringmanufactureaswellasinasubsequenttemperingoperation(postcuring),thematerialundergoesthermo-oxidationstress,resultinginacertainpriordeterioration.Alongsidetheselectionofpolymers,theagingprocessisdeterminedmainlybytheuseofanti-agingagents–e.g.p-phenylenediaminesorbysubstitutedphenols[3,5-8].Theinfluenceofcrosslinkingandoffillersonthermal-oxidativeaginghasscarcelybeeninvestigated.Thispaperfocusesspecificallyonthefollowing:temperaturedependencyandkineticaspectsofthermal-oxidativeaginginfluenceofacceleratorsfromsulfurcrosslinkinginfluenceofperoxidecrosslinking,withvariationoftheperoxidesandatemperingprocess–effectoffillers.

作者：

U. Giese (Sp), M. Santoso, R. H. Schuster, DIK e. V., Hannover (D)

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2009-08-13 9:51:05

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