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时间:2018-11-11
《聚丙烯汽车保险杠专用料的研究与开发硕士论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、工程硕士专业学位论文论文题目:聚丙烯汽车保险杠专用料的研究与开发IIThesisfortheGraduateCandidateTestResearchandDevelopmentofFunctionalizedPolypropyleneMaterialsforAutomobileBumperCandidate:ZhangHaixiaTutor:WangBaohuiField:ChemistryEngineeringDateoforalexamination:1thJune.2012University:NortheastPetroleumUniversity东北石油大学
2、工程硕士专业论文聚丙烯汽车保险杠专用料的研究与开发摘要聚丙烯(PP)由于原材料来源丰富,力学均衡性好,耐化学腐蚀,价格低廉等特点,广泛应用于包装、农业、建筑、汽车、电子电气等行业,用聚丙烯制作的汽车零部件品种较多,汽车保险杠是主要的零部件之一。但聚丙烯强度低,低温韧性较差,限制了它在结构材料领域中的拓展应用,因此要对其进行增强增韧。本文以聚丙烯(PP)为基础树脂,橡胶(POE)作为弹性体,聚乙烯7042为增韧剂,滑石粉(talc)作为填充剂并且添加碳酸钙(CaCO3),采用双螺杆挤出工艺制作汽车保险杠专用料,并研究了其组成对共混物性能的影响。通过试验确定了聚丙烯汽车保险
3、杠专用料的最佳工艺和配方,弹性体POE与滑石粉的最佳配比均为15%,采用简单的工艺、廉价的增强材料,提高聚丙烯的综合性能。该产品具有良好的加工性能,较高的抗冲击性能并易于喷涂,是综合性能优良的抗冲击聚丙烯新产品,可替代进口同类产品关键词:聚丙烯;汽车保险杠;专用料III东北石油大学工程硕士专业论文ResearchandDevelopmentofFunctionalizedPolypropyleneMaterialsforAutomobileBumperAbstractPolypropylene(PP)iswidelyusedforabundantmaterial,goo
4、dmechanicalperformance,chemistry-resisting,andlowprice.Polypropylenehasbeenwidelyappliedinfieldsofpackingagriculturebuildingautomobile,electricalequipmentetal.TherearealotoftypesautosparepartsthoseareusedPP.Bumpersareoneoftheprimaryparts.Butthedisadvantagesoflowrigidity,lowstrengthandlow
5、toughnessseriouslylimittheirfurtherapplicationsinfieldsofhigh-performancestructuralmaterials.SoPolypropyleneshouldbestrengthenedandtoughness.Inthispaper,PPasfundamentalresinwastoughedbyelastomericofpolyolefinelastomeric(POE)asprimarytoughnessagent,polyethylene7042astougheningagent,talcum
6、(talc)asfillerandcalciumcarbonatefortheSpecialCompoundofCarbumperbyextrusiontechnologyontwin-screwextruder.AndthecontentsinfluencethemechanicalperformanceoftheSpecialCompoundofCarbumper.TheresultsshowthatheoptimumprocessingparameterandformulationfortheSpecialCompoundofCarbumperweredeterm
7、ined,whichthemostappropriateratioofPOEandtalcisall15percent..Blendscouldbeimprovedbyusingsimplecompositecraftsandcheapreinforcements.Thecompoundhadgoodprocessability,higherimpactresistanceandspray-painteasily,beinganewimpactresistantPPwithexcellentoverallproperty.Itcoulds
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