合成橡胶工业
閤成橡膠工業
합성상효공업
CHINA SYNTHETIC RUBBER INDUSTRY
2009年
4期
313-316
,共4页
董文敏%董志华%徐东太%刘力
董文敏%董誌華%徐東太%劉力
동문민%동지화%서동태%류력
碳酸镧%碳酸铈%碳酸镨%碳酸钕%热塑性聚氨酯%防辐射性能
碳痠鑭%碳痠鈰%碳痠鐠%碳痠釹%熱塑性聚氨酯%防輻射性能
탄산란%탄산시%탄산보%탄산녀%열소성취안지%방복사성능
lanthanum carbonate%cerium carbonate%praseodymium carbonate%neodymium carbonate%thermoplastic polyurethane%radiation-proof property
通过机械共混法制备了La2(CO3)3,Ce2(CO3)3,Pr2(CO3)3,Nd2(CO3)3/热塑性聚氨酯(TPU)复合材料,研究了镧系碳酸盐/TPU复合材料的防辐射性能,讨论了添加La2(CO3)3/TPU回收料对其力学性能和屏蔽性能的影响.结果表明,在120 kV的入射管电压下,当镧系碳酸盐用量低于400份时,La2(CO3)3/TPU,Ce2(CO3)3/TPU,Pr2(CO3)3/TPU,Nd2(CO3)3/TPU复合材料的防辐射性能基本相当;当镧系碳酸盐用量超过400份时,Nd2(CO3)3/TPU复合材料的防辐射性能最好.在入射管电压为70～120 kV时,4种镧系碳酸盐/TPU复合材料的防辐射性能随着入射管电压的增加先增强后减弱,在85～105 kV出现峰值;除了Ce2(CO3)3/TPU复合材料以外,随着镧系元素原子序数的增加,其他复合材料的最佳防辐射峰值右移,且范围变宽.添加回收La2(CO3)3/TPU对La2(CO3)3/TPU复合材料的防辐射性能影响不大,只是其力学性能有所下降,但仍然能满足使用要求.
通過機械共混法製備瞭La2(CO3)3,Ce2(CO3)3,Pr2(CO3)3,Nd2(CO3)3/熱塑性聚氨酯(TPU)複閤材料,研究瞭鑭繫碳痠鹽/TPU複閤材料的防輻射性能,討論瞭添加La2(CO3)3/TPU迴收料對其力學性能和屏蔽性能的影響.結果錶明,在120 kV的入射管電壓下,噹鑭繫碳痠鹽用量低于400份時,La2(CO3)3/TPU,Ce2(CO3)3/TPU,Pr2(CO3)3/TPU,Nd2(CO3)3/TPU複閤材料的防輻射性能基本相噹;噹鑭繫碳痠鹽用量超過400份時,Nd2(CO3)3/TPU複閤材料的防輻射性能最好.在入射管電壓為70～120 kV時,4種鑭繫碳痠鹽/TPU複閤材料的防輻射性能隨著入射管電壓的增加先增彊後減弱,在85～105 kV齣現峰值;除瞭Ce2(CO3)3/TPU複閤材料以外,隨著鑭繫元素原子序數的增加,其他複閤材料的最佳防輻射峰值右移,且範圍變寬.添加迴收La2(CO3)3/TPU對La2(CO3)3/TPU複閤材料的防輻射性能影響不大,隻是其力學性能有所下降,但仍然能滿足使用要求.
통과궤계공혼법제비료La2(CO3)3,Ce2(CO3)3,Pr2(CO3)3,Nd2(CO3)3/열소성취안지(TPU)복합재료,연구료란계탄산염/TPU복합재료적방복사성능,토론료첨가La2(CO3)3/TPU회수료대기역학성능화병폐성능적영향.결과표명,재120 kV적입사관전압하,당란계탄산염용량저우400빈시,La2(CO3)3/TPU,Ce2(CO3)3/TPU,Pr2(CO3)3/TPU,Nd2(CO3)3/TPU복합재료적방복사성능기본상당;당란계탄산염용량초과400빈시,Nd2(CO3)3/TPU복합재료적방복사성능최호.재입사관전압위70～120 kV시,4충란계탄산염/TPU복합재료적방복사성능수착입사관전압적증가선증강후감약,재85～105 kV출현봉치;제료Ce2(CO3)3/TPU복합재료이외,수착란계원소원자서수적증가,기타복합재료적최가방복사봉치우이,차범위변관.첨가회수La2(CO3)3/TPU대La2(CO3)3/TPU복합재료적방복사성능영향불대,지시기역학성능유소하강,단잉연능만족사용요구.
La2(CO3)3, Ce2(CO3)3, Pr2(CO3)3, Nd2(CO3)3/thermoplastic polyurethane(TPU) composites were prepared by mechanical blending process, the radiation-proof properties of the lanthanIDe carbonate/TPU composites were investigated. The mechanical and radiation-proof properties of the composites with different contents of recycled La2(CO3)3/TPU were also researched. The results indicated that under the incIDent voltage 120 kV, the radiation-proof properties of the four composites were almost the same when the amount of lanthanIDe carbonate was less than 400 phr and the radiation-proof properties of Nd2(CO3)3/TPU composites were better than the others when the amount of lanthanIDe carbonate was over 400 phr. The radiation-proof properties of these composites firstly improved and then declined as the incIDent voltage increased in the range of 70-120 kV .There were optimal peak values ranging from 85 kV to 105 kV and the peak moved right and the ranging broadened with the increase of the atomic number except Ce2(CO3)3/TPU composites. Adding the recycled La2(CO3)3/TPU had little effect on the radiation-proof properties of La2(CO3)3/TPU composites while the mechanical properties decreased slightly and it could meet the requirement of the application.
