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1、---------------------------------------------------------------范文最新推薦------------------------------------------------------成核劑對玻纖增強尼龍66結晶和力學性能的影響摘要:本論文從成核劑的作用機理出發(fā),介紹了不同用量的成核劑對玻纖增強尼龍66結晶和力學性能的影響。利用雙螺桿擠出造粒機組制備出了性能優(yōu)異的玻璃纖維增強尼龍66工程塑料。結果表明,成核劑的加入使玻纖增強尼龍66結晶速率提高,結晶溫度提高;隨著成核
2、劑的加入玻纖增強的力學性能均增強,彎曲強度、彎曲模量、斷裂強度和沖擊強度均有所增加,耐熱性無明顯變化,斷裂伸長率降低。6207關鍵詞:玻纖增強;成核劑;結晶;力學性能;尼龍66Influenceofnucleatingagentonthecrystallizationofglassfiberreinforcednylon669/10---------------------------------------------------------------范文最新推薦-------------------------------
3、-----------------------crystallizationandmechanicalpropertiesAbstract:Inthispaper,thecontentofnucleatingagentontheglassfiberreinforcednylon66crystallizationeffectsandmechanicalpropertiesareintroducedbythemechanismofnucleationagent.Thehighperformanceglassfiberreinforc
4、ednylon66engineeringplasticswerepreparedbythetwin-screwextrusiongranulationunit.Theresultsshowthattheadditionofnucleatingagentmakethecrystallizationrateoftheglassfiberreinforcednylon66crystallizationrateincreaseandthecrystallizationtemperatureincreases.Withtheadditio
5、nofnucleatingagentmechanicalpropertiesofglassfiberreinforcedincrease,theflexuralstrength,flexuralmodulus,tensilestrengthandimpactstrengthareincreased,heatresistancedidnotchangesignificantly,theelongationatbreak9/10-----------------------------------------------------
6、----------范文最新推薦------------------------------------------------------decreased.KeyWords:glassfiberreinforced;nucleatingagent;crystallization;mechanicalproperty;nylon66目錄摘要iAbstracti目錄ii1文獻綜述11.1選題的背景與意義19/10-----------------------------------------------------------
7、----范文最新推薦------------------------------------------------------3.1成核劑對玻纖增強PA66力學性能的影響133.2成核劑對玻纖增強尼龍66熱性能的影響173.3成核劑對玻纖增強尼龍66結晶性能的影響184結論21致謝22參考文獻232實驗部分本段主要討論實驗的工作包括原料介紹、實驗儀器、試樣制備以及具體如何測試及表征。2.1實驗原材料和藥品主要原材料見表2.1表2.19/10--------------------------------------------
8、-------------------范文最新推薦------------------------------------------------------實驗主要原材料材料名稱牌號特性生產(chǎn)廠家或產(chǎn)地玻纖增強尼龍70G20NC010美國杜邦公司成核劑PNA01