N-PBSHEC共混物的性能研究.pdf

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1、第42卷，第l2期工程塑料应用Vo1．42．No．122014年l2月ENGnEERrNGPLASTICSAPPLICATIONDec．2014doi：lO．3969／j．issn．1001-3539．2014．12．001N-PBS／HEC共混物的性能研究张敏。段珊，苗妮娜，许小玲，宋吉青，何文清(1．陕西科技大学，教育部轻化工助剂化学与技术重点实验室，西安710021；2．中国农业科学院农业环境与可持续发展研究所，农业部农业环境与气候变化重点开放实验室，农业部旱作节水农业重点开放实验室，北京100081)摘要：利用熔融缩聚的方法将Ⅳ-甲基二乙醇胺与丁二

2、酸和1，4．丁二醇共聚，制备含N的聚丁二酸丁二酯(PBS)共聚物(N-PBS1，然后将其与纤维素衍生物羟乙基纤维素(HEC)进行溶液共混，制备了在水相中均匀分散的共混乳液，用流延成膜法制备了N-PBS／HEC共混膜。研究了N-PBS中—_N(cH)一基团的含量对N-PBS亲水性及共混膜性能的影响。结果表明，随着N-PBS中一N(cH卜含量的增加，N-PBS极性增加，亲水性增强；相对于PBS，N-PBS与HEC的相容性得到改善，共混膜的热分解温度在300~C以上，热稳定性良好，其透过率和断裂伸长率也随着N—PBS中—N(CH)一含量的增加而提高。关键词：聚丁

3、二酸丁二酯；N-甲基二乙醇胺；纤维素衍生物；熔融缩聚；溶液共混中图分类号：TQ31文献标识码：A文章编号：1001—3539(2014)12-0001-05StudyonPropertiesofModifiedN—PBS／CelluloseDerivativeBlendsZhangMin，DuanShan，MiaoNi’na，XuXiaoling，SongJiqing，HeWenqing(1．KeyLaboratoryofAuxiliaryChemistry&TechnologyforChemicalIndustry，MinistryofEducation

4、，ShaanxiUniversityofScience&Technology，Xi’an710021，China；2．InstituteofEnvironmentandSustainableDevelopmentinAgriculture，CAAS，KeyLaboratoryofAgro—EnvironmentandClimateChange，MinistryofAgriculture，KeyLaboratoryofDrylandFanningandWater-SavingAgriculture，MinistryofAgriculture，Beijing1

5、00081，China)AbstractiPolybutylenesuccinate(PBS)copolymercontainingnitrogen(N)(N-PBS)waspreparedbythemethodofmeltpo1ycondensatiOnthroughcopolymerizationofN-methyldiethanolamine，succinicacidand1，4-butyleneglyco1．ThehomogeneousblendingemulsionswerepreparedbymixingN-PBSandhydroxyethyl

6、cellulose(HEC)insolutionandN-PBS／HECblendingfilmwaspreparedbyfilmcasting．ItwasaimedtodiscusstheefectsforintroductionofN—containingfunctionalgroup[—_N(CH3)一]intothemainchainofPBS，includingtheefectsonthehydrophilicityofN-PBSandpropertiesofN-PBS／HECblendingfilm．Theresultsshowthatthep

7、olarityofN-PBSincreaseswiththeincreaseoftheN—containingfunctionalgroupcontentinN-PBS，meanwhile，thehydrophilicityofN-PBSincreases．ComparingwithPBS，thecompatibilitybetweenN-PBSHECisimproved．ThethermalpropertyofN-PBS／HECblendingfilmisgoodwiththedecompositiontemperaturebeingabove300~C

8、．Thetransmittanceandelongationatb