活性絮状污泥对粘胶织物的降解性能研究
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摘要
对经土壤与活性絮状污泥降解前后粘胶织物的热学性能、红外光谱、X衍射及力学性能进行测试,对比分析土壤与活性絮状污泥对粘胶织物的降解性能。结果表明:粘胶织物经土壤与活性絮状污泥降解后,热学性能与力学性能均有不同程度的下降;纤维结晶指数的上升验证了土壤与活性絮状污泥对粘胶均有一定程度的降解作用,且活性絮状污泥对粘胶织物的降解程度高于土壤;粘胶纤维结构保持了纤维素Ⅱ晶型结构不变。测试结果表明:活性絮状污泥对粘胶织物具有较好的降解性能,且微生物的数量能够直接影响粘胶织物的降解程度。
Thermal properties, curves of infrared spectrum and X-ray diffraction and mechanical properties of viscose fabric before andafter degraded by soil and activated flocculation sludge are tested, and the degradation properties of activated flocculation sludge and soil arecompared and analyzed. Research shows that thermal properties and mechanical properties of viscose fabrics after degradation by soil andactivated flocculation sludge both decrease except crystallographic index which verifies that there is a certain degree of degradation of soil andactivated flocculation sludge on viscose fabrics and degradation properties of activated flocculation sludge is better than that of soil. What'smore, crystal structure of viscose fiber is still cellulose Ⅱ after degradation with soil and activated flocculation sludge. It is believed that thereis a certain degradation effect of activated flocculation sludge and the degradation properties could be affected by the number of microorganismdirectly.
Thermal properties, curves of infrared spectrum and X-ray diffraction and mechanical properties of viscose fabric before andafter degraded by soil and activated flocculation sludge are tested, and the degradation properties of activated flocculation sludge and soil arecompared and analyzed. Research shows that thermal properties and mechanical properties of viscose fabrics after degradation by soil andactivated flocculation sludge both decrease except crystallographic index which verifies that there is a certain degree of degradation of soil andactivated flocculation sludge on viscose fabrics and degradation properties of activated flocculation sludge is better than that of soil. What'smore, crystal structure of viscose fiber is still cellulose Ⅱ after degradation with soil and activated flocculation sludge. It is believed that thereis a certain degradation effect of activated flocculation sludge and the degradation properties could be affected by the number of microorganismdirectly.
引文
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[2]贾丽娜,陆燕萍,袁春香,等.新生儿医用粘胶相关性皮肤损伤的研究现状[J].中西医结合护理(中英文),2018,4(1):169-172.
[3]曲腾云,于伟东.纤维素纤维的生物降解性能[J].纺织学报,2015,36(11):20-26.
[4]林燕萍.中国南北地区土壤对粘胶纤维降解性能的影响[J].纤维素科学与技术,2016,24(3):67-73.
[5]林燕萍.粘胶纤维堆肥降解性能研究[J].纤维素科学与技术,2016,24(4):51-55.
[6]牛建涛,张小英,官伟波.纤维素纤维织物在米曲霉作用下的生物降解[J].上海纺织科技,2013,41(5):1-3.
[7]程明明,纪全,夏延致,等.阻燃粘胶纤维的热降解性能研究[J].合成纤维工业,2009,32(2):11-13.
[8]彭松娜,胡俊琼,齐大鹏.粘胶纤维光氧降解性能研究[J].人造纤维,2012(4):2-4.
[9]SEGAL L,GREELY L,MARTIN A E,et al.An empirical method for estimating the degree of crystallinity of native cellulose using X ray diffractometer[J].Textiles Research Journal,1959(29):786-794.
[10]BOHN A,FINK H P,GANSTER J,et al.X-ray texture investigations of bacterial cellulose[J].Macromolecular Chemistry&Physics,2000,201(15):1913-1921.