共混纺丝法制备抗紫外老化高强PET纤维的性能研究
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摘要
选用UV-1577作为抗紫外老化剂,与特性黏数为0.98 d L/g的高黏聚酯(PET)切片共混,采用共混添加的方法得到抗紫外老化PET功能母粒,再与高黏PET切片进行共混纺丝,通过低速纺丝、多倍拉伸制备了抗紫外老化高强PET纤维。结果表明:UV-1577对高黏PET的共混和纺丝过程不会造成影响,随着UV-1577的加入,高黏PET非牛顿指数降低;当UV-1577质量分数为5.0%时,共混体系熔融温度从248℃上升到252℃,终止结晶温度从178℃上升到200℃;经过300 h人工氙灯加速老化,添加UV-1577改性高强PET纤维的端羧基指数变化程度明显下降,具有良好的抗紫外老化性能,其中UV-1577质量分数5.0%的高强PET纤维强度保持率达到95.6%。
An ultraviolet absorbent UV-1577 was blended with a high-viscosity polyester( PET) chip with the intrinsic viscosity of 0. 98 d L/g to produce an anti-ultraviolet aging PET functional masterbatch which was blend spun with the high-viscosity PET chip to produce an anti-ultraviolet aging high-strength PET fiber after low-speed spinning and multiple stretching. The results showed that UV-1577 did not impact the blending and spinning processes of high-viscosity PET; the non-Newtonian index of the high-viscosity PET was decreased with the addition of UV-1577; the melting temperature of the blend system was increased from248 ℃ to 252 ℃ and the crystallization termination temperature was increased from 178 ℃ to 200 ℃ when the mass fraction of UV-1577 was 5. 0%; and the variation of the end carboxyl group index of the high-strength PET fiber modified with 5. 0%UV-1577 by mass fraction was obviously depressed,the fiber exhibited the favorable anti-ultraviolet aging property and the retention of tensile strength reached 95. 6% after 300-h xenon lamp accelerated aging.
An ultraviolet absorbent UV-1577 was blended with a high-viscosity polyester( PET) chip with the intrinsic viscosity of 0. 98 d L/g to produce an anti-ultraviolet aging PET functional masterbatch which was blend spun with the high-viscosity PET chip to produce an anti-ultraviolet aging high-strength PET fiber after low-speed spinning and multiple stretching. The results showed that UV-1577 did not impact the blending and spinning processes of high-viscosity PET; the non-Newtonian index of the high-viscosity PET was decreased with the addition of UV-1577; the melting temperature of the blend system was increased from248 ℃ to 252 ℃ and the crystallization termination temperature was increased from 178 ℃ to 200 ℃ when the mass fraction of UV-1577 was 5. 0%; and the variation of the end carboxyl group index of the high-strength PET fiber modified with 5. 0%UV-1577 by mass fraction was obviously depressed,the fiber exhibited the favorable anti-ultraviolet aging property and the retention of tensile strength reached 95. 6% after 300-h xenon lamp accelerated aging.
引文
[1]Pirzadeh E,Zadhoush A,Haghighat M.Hydrolytic and thermal degradation of PET fibers and PET granule:The effects of crystallization,temperature,and humidity[J].J Appl Polym Sci,2007,106(3):1544-1549.
[2]许淑民,汪进前,盖燕芳,等.涤纶篷盖织物热老化后的力学性能研究[J].现代纺织技术,2011,19(4):11-15.Xu Shumin,Wang Jinqian,Gai Yanfang,et al.Study on mechanical properties of polyester tent fabrics after thermal aging[J].Adv Text Tech,2011,19(4):11-15.
[3]陈莉,黄垂助.室外环境下涤纶织物的性能变化[J].上海纺织科技,2011,39(5):29-30.Chen Li,Huang Chuizhu.Performance changes of the polyester fabric in the outdoor environment[J].Shanghai Text Sci Tech,2011,39(5):29-30.
[4]Sammon C,Yarwood J,Everall N.An FT-IR study of the effect of hydrolytic degradation on the structure of thin PET films[J].Polym Degrad Stab,2000,67(1):149-158.
[5]Pirzadeh E,Zadhoush A,Haghighat M.Hydrolytic and thermal degradation of PET fibers and PET granule:The effects of crystallization,temperature,and humidity[J].J Appl Polym Sci,2007,106(3):1544-1549.
[6]Montaudo G,Puglisi C,Samperi F.Primary thermal degradation mechanisms of PET and PBT[J].Polym Degrad Stab,1993,42(1):13-28.
[7]吴伟伟,王锐,朱志国,等.阻燃吸湿改性PET的制备及性能研究[J].合成纤维工业,2013,36(2):17-20,24.Wu Weiwei,Wang Rui,Zhu Zhiguo,et al.Preparation and properties of flame retardant hygroscopic modified PET[J].Chin Syn Fiber Ind,2013,36(2):17-20,24.
[8]朱志学,俞波.抗紫外线聚酯的合成与纺丝[J].合成纤维工业,1999,22(2):6-9.Zhu Zhixue,Yu Bo.The synthesis and spinning of ultraviolet resistant polyester fiber[J].Chin Syn Fiber Ind,1999,22(2):6-9.
[9]GB/T 14190—2008.纤维级聚酯切片(PET)试验方法[S].GB/T 14190—2008.Testing methods of fiber grade polyester(PET)chip[S].
[10]GB/T 16422.3—1997.塑料实验室光源暴露试验[S].GB/T 16422.3—1997.Plastics-Methods of of the exposure to laboratory light sources[S].
[11]Fechine G J M,Rabello M S,Souto R M.The effect of ultraviolet stabilizers on the photodegradation of poly(ethylene terephthalate)[J].Polym Degrad Stab,2002,75(1):153-159.
[12]易志文.聚酯纤维的抗紫外老化特性研究[D].上海:东华大学,2015.Yi Zhiwen.Anti-ultraviolet aging properties of polyester fiber[D].Shanghai:Donghua University,2015.
[13]GB/T 6505—2008.长丝热收缩率试验方法[S].GB/T 6505—2008.Testing method for thermal shinkage of man-made filament yarns[S].
[14]滕翠青,武秀阁,余木火.防紫外线PET的非等温结晶动力学研究[J].中国纺织大学学报,1996,22(6):102-105.Teng Cuiqing,Wu Xiuge,Yu Muhuo.Non-isothermal crystallization kinetics of UV-resistant PET[J].J Chin Text Univ,1996,22(6):102-105.
[15]谢玉福,陈建勇,张华鹏.瓶片聚酯与纺丝级聚酯流变性能的比较[J].浙江理工大学学报,2011,28(2):182-186.Xie Yufu,Chen Jianyong,Zhang Huapeng.Comparative study on the rheological properties of bottle and fiber grade polyester[J].J Zhejiang Inst Sci Tech,2011,28(2):182-186.
[2]许淑民,汪进前,盖燕芳,等.涤纶篷盖织物热老化后的力学性能研究[J].现代纺织技术,2011,19(4):11-15.Xu Shumin,Wang Jinqian,Gai Yanfang,et al.Study on mechanical properties of polyester tent fabrics after thermal aging[J].Adv Text Tech,2011,19(4):11-15.
[3]陈莉,黄垂助.室外环境下涤纶织物的性能变化[J].上海纺织科技,2011,39(5):29-30.Chen Li,Huang Chuizhu.Performance changes of the polyester fabric in the outdoor environment[J].Shanghai Text Sci Tech,2011,39(5):29-30.
[4]Sammon C,Yarwood J,Everall N.An FT-IR study of the effect of hydrolytic degradation on the structure of thin PET films[J].Polym Degrad Stab,2000,67(1):149-158.
[5]Pirzadeh E,Zadhoush A,Haghighat M.Hydrolytic and thermal degradation of PET fibers and PET granule:The effects of crystallization,temperature,and humidity[J].J Appl Polym Sci,2007,106(3):1544-1549.
[6]Montaudo G,Puglisi C,Samperi F.Primary thermal degradation mechanisms of PET and PBT[J].Polym Degrad Stab,1993,42(1):13-28.
[7]吴伟伟,王锐,朱志国,等.阻燃吸湿改性PET的制备及性能研究[J].合成纤维工业,2013,36(2):17-20,24.Wu Weiwei,Wang Rui,Zhu Zhiguo,et al.Preparation and properties of flame retardant hygroscopic modified PET[J].Chin Syn Fiber Ind,2013,36(2):17-20,24.
[8]朱志学,俞波.抗紫外线聚酯的合成与纺丝[J].合成纤维工业,1999,22(2):6-9.Zhu Zhixue,Yu Bo.The synthesis and spinning of ultraviolet resistant polyester fiber[J].Chin Syn Fiber Ind,1999,22(2):6-9.
[9]GB/T 14190—2008.纤维级聚酯切片(PET)试验方法[S].GB/T 14190—2008.Testing methods of fiber grade polyester(PET)chip[S].
[10]GB/T 16422.3—1997.塑料实验室光源暴露试验[S].GB/T 16422.3—1997.Plastics-Methods of of the exposure to laboratory light sources[S].
[11]Fechine G J M,Rabello M S,Souto R M.The effect of ultraviolet stabilizers on the photodegradation of poly(ethylene terephthalate)[J].Polym Degrad Stab,2002,75(1):153-159.
[12]易志文.聚酯纤维的抗紫外老化特性研究[D].上海:东华大学,2015.Yi Zhiwen.Anti-ultraviolet aging properties of polyester fiber[D].Shanghai:Donghua University,2015.
[13]GB/T 6505—2008.长丝热收缩率试验方法[S].GB/T 6505—2008.Testing method for thermal shinkage of man-made filament yarns[S].
[14]滕翠青,武秀阁,余木火.防紫外线PET的非等温结晶动力学研究[J].中国纺织大学学报,1996,22(6):102-105.Teng Cuiqing,Wu Xiuge,Yu Muhuo.Non-isothermal crystallization kinetics of UV-resistant PET[J].J Chin Text Univ,1996,22(6):102-105.
[15]谢玉福,陈建勇,张华鹏.瓶片聚酯与纺丝级聚酯流变性能的比较[J].浙江理工大学学报,2011,28(2):182-186.Xie Yufu,Chen Jianyong,Zhang Huapeng.Comparative study on the rheological properties of bottle and fiber grade polyester[J].J Zhejiang Inst Sci Tech,2011,28(2):182-186.