資源描述：
《不飽和聚酯樹(shù)脂紫外快速固化的研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、摘要本文針對(duì)感光不飽和聚酯樹(shù)脂紫外固化過(guò)程中影響固化效果的主要因素進(jìn)行了系統(tǒng)研究，分別探討了光引發(fā)劑、稀釋劑、光敏促進(jìn)劑等因素對(duì)光固化速率及相對(duì)固化度的影響。確定了最佳固化效果的紫外固化體系。為今后紫外快速固化技術(shù)的應(yīng)用積累了一定的理論依據(jù)。本文選定普通不飽和聚酯樹(shù)脂191”和乙烯基兩種感光不飽和樹(shù)脂作為紫外固化的研究對(duì)象。從自由基型光引發(fā)劑的引發(fā)機(jī)理和引發(fā)活性上選定出分裂型(安息香及衍生物)和提氫型(二苯甲酮)兩類光引發(fā)劑。分別測(cè)定了它們?cè)谙嗤瑮l件下樹(shù)脂的固化時(shí)間和相對(duì)固化度，通過(guò)對(duì)固化時(shí)間、相對(duì)固化度的優(yōu)化，確定了安息香雙甲醚光引發(fā)劑的最佳引發(fā)劑含量為6％：最佳光敏促進(jìn)
2、劑一氯化亞錫的添加量為1—1．5％時(shí)，能極大的提高固化速率；研究還發(fā)現(xiàn)減少191#樹(shù)脂中稀釋劑(苯乙烯)的含量能提高固化速率。通過(guò)光引發(fā)劑和樹(shù)脂的紫外吸收光譜測(cè)試，分析得知安息香雙甲醚比其它醚類光引發(fā)劑在相同波長(zhǎng)處有較強(qiáng)的吸收峰，進(jìn)一步證明了安息香雙甲醚比其他引發(fā)劑引發(fā)固化效果較好。用紅外掃描跟蹤紫外固化過(guò)程特征基團(tuán)吸收峰的變化率，分析紫外固化行為變化進(jìn)展。對(duì)固化膜進(jìn)行斷裂強(qiáng)度測(cè)定，發(fā)現(xiàn)測(cè)量值與光引發(fā)劑含量有關(guān)系。關(guān)鍵詞：紫外光固化，不飽和樹(shù)脂，光引發(fā)劑，固化速率，紅外光譜法AbstractInthisarticle，manyfactorsaffectingUV-curin
3、geffectofunsaturatedresinwerestudied．furthermore，someresearchwasconductedthatfactorshowtoeffectcuring—velocityandcuring-degreesuchasphotoinitiator,dilutionandphotoconductiveaccelerant，etc．Lastly，takingasum—upandgivingthebestUV-curingsystem．ithaslaiedafoundationforthetechniqueofUV-curing．19
4、1#andVEunsaturatedresinsareselectedinthisarticle，thanchoosingtwokindsphotoinitiatorsasUV-curingphotoinitiatorfromtheirreactiontheoryandreactivity，thatisthebenzoin，benzoin—ramificationandbenzophenone．Separatelytestingthosephotoinitiatorsreactingvelocityandcuring-degree，theresultsshowthatben
5、zildi-methylketalphotoinitiatorhasarapidcuring-velocityandhighcuring—degree．Ithasdiscoveredinthetestthatthebestcontentofphotoinitiatorsis6％，addingSnCl2(1-1-5％)intocuring-resinorlesseningdilution5％of191#一resincanraisecuring—velocity．FromtheUV-Sorbspectrumofunsatulatedresinandphotoinitiator．
6、itcanfindthattheabsorbpeakofbenzildi—methylketalisbiggerthanthatofothersphotoinitiators．soitprovesthatbenzildi—methylketalisthemosteffective．ToanalysethevariationindoublebondofUV-curinginthecourseofUV-curing，theFTIRspectrometrywasusedtotracktheconversionrateofdoublebond．Atlast，theimensityo
7、fcuring-filmwastested，foundthattheintensityisrelatetothecontentofphotoinitiator．Keywords：UVcuring，UP-resin，photoinitiator，curingvelocity，infraredspectrometryII武漢理工大學(xué)碩士學(xué)位論文第1章緒論紫外光固化體系與其他固化體系相比具有固化速度快、節(jié)能、生產(chǎn)效率高、涂層性能好等優(yōu)點(diǎn)，極大地滿足了現(xiàn)代化：【業(yè)的流水線生產(chǎn)及現(xiàn)代環(huán)保要求。我國(guó)對(duì)紫外光固化技術(shù)的開(kāi)發(fā)利用較
