三元乙丙基纤维编织绝热材料的制备与性能研究
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摘要
针对混炼型绝热材料耐烧蚀性能较差的问题,采用编织碳纤维作为耐烧蚀骨架,改性三元乙丙橡胶(EPDM)作为基体,制备了三元乙丙基编织绝热材料。研究表明,增粘剂HY-207能够明显提高三元乙丙混炼胶的粘接强度,添加量为5%时,粘接强度提高39.25%;苯并噁嗪添加量为20%时,三元乙丙混炼胶的综合性能最好;疏水二氧化硅对三元乙丙胶液粘度影响最低,且制备的纤维编织绝热材料氧-乙炔烧蚀性能最优,氧-乙炔线烧蚀率为0.025 mm/s;三元乙丙纤维编织绝热材料与三元乙丙绝热层粘接强度为1.95 MPa。本研究能够减少发动机燃烧室消极质量,提高固体火箭发动机性能。
Millable insulation materials represent poor ablation resistance. In this paper,fiber-woven EPDM insulation materials were prepared using woven carbon fiber as the ablation skeleton and modified EPDM as the matrix. The study showed that the tackifier of HY-207 could obviously increase the bonding strength of the mixing rubber of EPDM. The bonding strength increased by39. 25% when the count of HY-207 was 5 wt%. The comprehensive performance of the mixing rubber EPDM was the best with 20% mass fraction of benzoxazine. The hydrophobic silica had the lowest effect on the viscosity of EPDM adhesive and the oxyacetylene ablation performance of insulation was optimal,which was 0. 02 mm/s. The fiber-woven EPDM insulation materials could satisfy the bonding performance for insulator and the bonding strength was 1. 95 MPa. The study reduced the negative quality of the combustion chamber and improved the performance of the study can reduced the negative quality of combustion chamber and improved the performance of Solid Rocket Motors.
Millable insulation materials represent poor ablation resistance. In this paper,fiber-woven EPDM insulation materials were prepared using woven carbon fiber as the ablation skeleton and modified EPDM as the matrix. The study showed that the tackifier of HY-207 could obviously increase the bonding strength of the mixing rubber of EPDM. The bonding strength increased by39. 25% when the count of HY-207 was 5 wt%. The comprehensive performance of the mixing rubber EPDM was the best with 20% mass fraction of benzoxazine. The hydrophobic silica had the lowest effect on the viscosity of EPDM adhesive and the oxyacetylene ablation performance of insulation was optimal,which was 0. 02 mm/s. The fiber-woven EPDM insulation materials could satisfy the bonding performance for insulator and the bonding strength was 1. 95 MPa. The study reduced the negative quality of the combustion chamber and improved the performance of the study can reduced the negative quality of combustion chamber and improved the performance of Solid Rocket Motors.
引文
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[17]Kim H J,Brunovska Z,Ishida H.Synthesis and thermal characterization of polybenzoxazines based on acetylene-functional monomers[J].Polymer,1999,(40):6565-6573.
[2]秦锋,张崇耿,张新航,等.耐烧蚀三元乙丙橡胶绝热层材料的性能研究[J].航天制造技术,2010,6(3):26-28.Qin F,Zhang C G,Zhang X H,et al.Study on ablation-resisting properties of EPDM insulation material[J].Aerospace Manufacturing Technology,2010,6(3):26-28.(in Chinese)
[3]白湘云,王立峰,吴福迪.耐烧蚀填料对三元乙丙橡胶内绝热材料性能的影响[J].宇航材料工艺,2004,34(4):25-28.Bai X Y,Wang L F,Wu F D.Effects of ablative fillers on EPDM ablative insulation[J].Aerospace Materials and Technology,2004,34(4):25-28.(in Chinese)
[4]Guan Y,Zhang L X,Zhang L Q,et al.Study on ablative properties and mechanisms of hydrogenated nitrile butadiene rubber(HNBR)composites containing different fillers[J].Polymer Degradation and Stability,2011,96(5):808-817.
[5]周瑞涛,郑元锁,孙黎黎,等.硼酚醛树脂/丁腈橡胶烧蚀材料性能研究[J].固体火箭技术,2007,30(2):159-162.Zhou R T,Zheng Y S,Sun L L,et al.Study on properties of boron phenolic resin/butadiene acrylonitrile rubber(NBR)ablative materials[J].Journal of Solid Rocket Technology,2007,30(2):159-162.(in Chinese)
[6]Gao G,Zhang Z,Li X,et al.An excellent ablative composite based on PBO reinforced EPDM[J].Polymer Bulletin,2010,64(6):607-622.
[7]Maurizio Natali,Marco Rallini,Debora Puglia,et al.EPDM based heat shielding materials for Solid Rocket Motors:A comparative study of different fibrous reinforcements[J].Polymer Degradation and Stability,2013,98:2131-2139.
[8]Bhuvaneswari C M,Sureshkumar M S,Kakade S D,et al.Ethylene-propylene diene rubber as a futuristic elastomer for insulation of solid rocket motors[J].Defence Science Journal,2006,56(3):309-320.
[9]Wang Z,Lu Y,Liu J,et al.Preparation of nano-zinc oxide/EPDM composites with both good thermal conductivity and mechanical properties[J].Journal of Applied Polymer Science,2011,119(2):1144-1155.
[10]Sureshkumar M S,Bhuvaneswari C M,Kakade S D,et al.Studies on the properties of EPDM-CSE blend containing HTPB for case-bonded solid rocket motor insulation[J].Polymers for Advanced Technologies,2010,19(2):144-150.
[11]Maurizio Natali,Marco Rallini,Jose Kenny,et al.Effect of Wollastonite on the ablation resistance of EPDM based elastomeric heat shielding materials for solid rocket motors[J].Polymer Degradation and Stability,2016,130:47-57.
[12]Yang D,Zhang W,Jiang B Z.Ceramization and oxidation behaviors of silicone rubber ablative composite under oxyacetylene flame[J].Ceramics International,2013,39(2):1575-1581.
[13]周传健,张惠,周凯运,等.苯基硅橡胶/硅氮陶瓷前驱体复合绝热层烧蚀机理[J].固体火箭技术,2015(4):566-572.Zhou C J,Zhang H,Zhou K Y,et al.Ablative properties and mechanisms of PMPS/PNS-3 silicon rubber compositive material under oxyacetylene flame[J].Journal of Solid Rocket Technology,2015,(4):566-572.(in Chinese)
[14]Baris Kiskan,Narendra Nath Ghosh,Yusuf Yagci.Polybenzoxazine-based composites as high-performance materials[J].Polymer International,2011,60:167-177.
[15]Espinosa M A,Cdiz V,Galia M.Synthesis and characterization of benzoxazine-based phenolic resins:crosslinking study[J].Journal of Applied Polymer Science,2003,90:470-481.
[16]Yagci Y,Kiskanm B,NNG.Recent advancement on polybenzoxazine—A newly developed high performance thermoset[J].Journal of Polymer Science:Part A:Polymer Chemistry,2010,47(21):5565-5576.
[17]Kim H J,Brunovska Z,Ishida H.Synthesis and thermal characterization of polybenzoxazines based on acetylene-functional monomers[J].Polymer,1999,(40):6565-6573.