聚烯烃基低熔点热塑性粘合剂胶片用增塑剂的筛选
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摘要
为提高自制的低熔点热塑性弹性体LCX的综合性能,通过溶度参数差值(Δδ)、抗迁移性分析、拉伸测试、流变测试、动态力学分析(DMA)、差示扫描量热分析(DSC)、热重分析(TGA)及扫描电镜(SEM),研究了15~#矿物油(D80)、26~#矿物油(D100)、邻苯二甲酸二乙酯(DHP)、癸二酸二辛酯(DOS)、液体聚丁二烯(LPBd)对LCX的增塑效果。结果表明,D80、D100及DHP无法用作LCX的增塑剂,DOS及LPBd具有较好的抗迁移性,与LCX具有较好的相容性,可显著提升LCX的低温性能,降低LCX的熔点及熔体粘度,其中复配增塑剂DOS/LPBd对LCX的增塑效果最好,胶片LCX/DOS/LPBd(增塑比为2/1/1)具有最优的综合性能,可满足热塑性推进剂的使用要求。
In order to improve the overall performances of the our novel low melting point thermoplastic elastomer( LCX),the plasticizing effect of No.15~#mineral oil( D80),No.26~#mineral oil( D100),diethyl phthalate( DHP),dioctyl sebacate( DOS) and liquid polybutadiene( LPBd) on LCX has been studied through the methods of the solubility parameter,anti-migration analyses,tensile tests,rheological tests,dynamic mechanical analysis( DMA),differential scanning calorimetry( DSC),thermogravimetric analysis( TGA) and scanning electron microscopy( SEM) techniques. The results show that the D80,D100 and DHP can not be used as plasticizers for LCX. The DOS and LPBd have good migration resistance and great compatibility with LCX.The DOS and LPBd could lower the melting point of LCX and its viscosity in melt state and improve the performance of low temperature of LCX significantly.The plasticizing agent DOS/LPBd has the best plasticizing effect on LCX.The adhesive film LCX/DOS/LPBd( plasticizing ration: 2/1/1) has the best overall performances,which can satisfy the requirements of the criteria for thermoplastic propellant applications.
In order to improve the overall performances of the our novel low melting point thermoplastic elastomer( LCX),the plasticizing effect of No.15~#mineral oil( D80),No.26~#mineral oil( D100),diethyl phthalate( DHP),dioctyl sebacate( DOS) and liquid polybutadiene( LPBd) on LCX has been studied through the methods of the solubility parameter,anti-migration analyses,tensile tests,rheological tests,dynamic mechanical analysis( DMA),differential scanning calorimetry( DSC),thermogravimetric analysis( TGA) and scanning electron microscopy( SEM) techniques. The results show that the D80,D100 and DHP can not be used as plasticizers for LCX. The DOS and LPBd have good migration resistance and great compatibility with LCX.The DOS and LPBd could lower the melting point of LCX and its viscosity in melt state and improve the performance of low temperature of LCX significantly.The plasticizing agent DOS/LPBd has the best plasticizing effect on LCX.The adhesive film LCX/DOS/LPBd( plasticizing ration: 2/1/1) has the best overall performances,which can satisfy the requirements of the criteria for thermoplastic propellant applications.
引文
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[6]郝利峰,张丽,何宏军,等.复合固体推进剂用增塑剂的研究进展[J].化学推进剂与高分子材料,2014,12(6):43-49.HAO Lifeng,ZHANG Li,HE Hongjun et al. Research progress of plasticizers for composite solid propellant[J].Chemical Propellants&Polymeric Materials,2014,12(6):43-49.
[7]付一政,胡双启,兰艳花,等.HTPB/增塑剂玻璃化转变温度及力学性能的分子动力学模拟[J].化学学报,2010,68(8):809-813.FU Yizheng,HU Shuangqi,LAN Yanhua,et al.Molecular dynamics simulation on the glass transition temperature and mechanical properties of HTPB/plasticizer blends[J]. ACTA Chimica Sinica,2010,68(8):809-813.
[8]邓剑如,王亚,张玉亭.高分子溶液理论在固体推进剂中的应用[J].推进技术,1996,17(6):78-82.DENG Jianru,WANG Ya,ZHANG Yuting. An application of polymer solution theory to solid propellants[J]. Journal of Propulsion Technology,1996,17(6):78-82.
[9] Mason J A,Sperling L H. Polymer blends and composites[M].Plenum Press,New York,1976:513-514.
[10]刘海军.PVC增塑机理及PVC-增塑剂的相互作用[J].山西化工,2011,31(2):56-58.LIU Haijun.Mechanism of PVC plasticization and PVC-plasticizer interaction[J]. Shanxi Chemical Industry,2011,31(2):56-58.
[11]谭惠民.固体推进剂化学与技术[M].北京:北京理工大学出版社,2015.TAN Huimin. The chemistry and technology of solid rocket propellant[M]. Beijing:Beijing Institute of Technology Press,2015.
[12]高传慧,郭方荣,王晓红,等.新型聚酯增塑剂的合成及增塑聚氯乙烯性能[J].高等学校化学学报,2015,36(8):1634-1640.GAO Chuanhui,GUO Fangrong,WANG Xiaohong,et al.Synthesis of a novel polyester plasticizer and its plasticizing effect in poly(vinylchloride)[J]. Chemical Journal of Chinese Universities,2015,36(8):1634-1640.
[13]郑剑.热塑性弹性体推进剂的研制及发展前景[J].固体火箭技术,1995,18(4):29-36.ZHENG Jian. Development and development prospect of thermoplastic elastomer propellant[J]. Journal of Solid Rocket Technology,1995,18(4):29-36.