高分子材料及应用习题.doc

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1、Chapter11.Manypolymersoccurinnature.Nameanytwonaturallyoccurringpolymers.2.Whatwillhappenwhenwebeginheatingeachofthepolymersbelow?a)Athermosetting(polymer).b)Athermoplastic(polymer).3.Nameanytwopropertiesthatyoumaylookforindescribingapolymer.4.Describewhatismeantby

2、theterm"polymer”.5.Brieflyexplainthedifferenceinmolecularchemistrybetweensiliconepolymerandotherpolymericmaterials.Chapter21.Giveadefinitiontoplastics.Howaretheycomposedof?Whatarethefunctionsofthecomponents?2.Whatarethermoplastics?Whatarethermosettingplastics?Givea

3、fewexamplesforeach.3.ExplainthedifferenceofpropertiesbetweenHDPEandLDPEaccordingtotheirchainstructures?4.Explainwhypolyethyleneisspeciallysuitableforcommunicationcable?5.WhatismetallocenePE?AndwhatarethedifferencesamongmetallocenePE,HDPEandLLDPE?6.Howmanytypesofcon

4、formationsdothepolypropylenehave?7.ComparetheweatheringstabilityofPPandPE,andexplainit.8.Namefivemainprocessingmethodsforplastics.9.DescribethecharacteristicsandapplicationofPVC.10.WhatarethemainpropertiesofPS?WhencomparedwithPS,whatadvantagedoesABShave?11.Whataret

5、hepropertiesandmainapplicationcategoriesofPMMA12.WritedownthechemicalstructureofPET?13.WhatarethestructurecharacteristicsofPTFE?Whyithasgoodauto-lubricatingproperty?1.WhatarethemaincharacteristicsofNylonfamilies.2.ComparethepropertiesofNylonwithPOM,andfindouttheirp

6、otentialapplicationfields.3.WhydoesPPSshowanexcellentheatresistance?4.ListthemainapplicationsofPPS.5.Writedowntheformulationsofepoxyresin.19・Listthemainapplicationsofepoxyplastics.20.Whatarethemainprocessingmethodsofthermosettingplastics?21.Comparedwiththermoplasti

7、cs,whataretheadvantageanddisadvantageofthermosettingplastics?22.WhataremeantbyA-stageandB-stagephenolics?23.Whatarethecharacteristicsandapplicationcategoriesofaminoplastics24.Listthemainapplicationsofunsaturatedpolyester.25.Listthepropertiesofglassfiber(GF)reinforc

8、edunsaturatedpolyesterandGFreinforcedepoxyplastics.26.Choosethesuitablematerialsofthefabricationofstreetlampshousing,andtellthereasons.(A)ABS,(B)