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甲壳素纤维的性能及应用 总被引:2,自引:0,他引:2
甲壳素作为一种新型的纤维材料,已被广泛地应用到医药、纺织、食品、化工等多个领域。本文介绍了甲壳素纤维的制备、性能及其产品的开发和应用。 相似文献
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为了提高纱布敷料的抗菌性能,文章在明确甲壳素纤维和大麻纤维的抗菌机理,并对甲壳素纤维纱线、大麻纤维纱线、棉和黏胶的性能进行测试分析的基础上,采用甲壳素纱线、大麻纱线分别与棉纱或黏胶合股,在CMS530HP型电脑横机上编织16种不同规格的纬平针织物和1+1罗纹织物。测试并分析织物的透气性、透湿性,采用琼脂平皿法测试织物对大肠杆菌的抗菌性能,并进行对比分析。结果表明,大麻与棉合股纱编织的织物抗菌效果最好,甲壳素与黏胶合股纱编织的织物抗菌效果最差。该研究可为纱布敷料的开发及其抗菌性能的改善提供技术参考。 相似文献
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甲壳素纤维性能测试与研究 总被引:1,自引:0,他引:1
对甲壳素纤维的结构特点进行分析研究.然后通过实验方法,在对甲壳素纤维的力学性能,吸湿透气性,热稳定性,耐酸碱性,抗菌抑菌性等测试的基础上,对甲壳素纤维的可纺性,可编织性,服用性能等进行了分析研究.所得结论对指导甲壳素纤维产品的开发及生产有一定的指导意义. 相似文献
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对甲壳素纤维的结构特点进行分析研究。然后通过实验方法,在对甲壳素纤维的力学性能,吸湿透气性,热稳定性,耐酸碱性,抗菌抑菌性等测试的基础上,对甲壳素纤维的可纺性,可编织性,服用性能等进行了分析研究。所得结论对指导甲壳素纤维产品的开发及生产有一定的指导意义。 相似文献
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对甲壳素纤维的物理机械性能进行测试分析,包括形态特征、结晶度、取向度、拉伸性能、摩擦性能、质量比电阻、吸湿性和抗菌性。利用甲壳素、棉混纺纱线(混纺比分别为10∶90和30∶70)在双面大圆机上开发复合组织内衣面料,对编织工艺进行详细介绍,最后对织物的顶破强度、耐磨性、透气性、吸湿性和抗菌性进行性能测试与评价。结果表明:甲壳素纤维结晶度和双折射率低,强度较低,吸湿透气性好;所开发面料具有良好的吸湿和抗菌性能,适合开发高品质功能性内衣面料。 相似文献
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将羟基功能化纳米银应用于载银甲壳素纤维的制备,利用分光光度法研究了甲壳素纤维对羟基功能化纳米银的吸附性能和吸附机理;测试了不同银含量载银甲壳素纤维的抗菌性能;采用扫描电镜(SEM)和光电子能谱(XPS)对载银甲壳素纤维的微观形貌和元素成分进行了分析。研究结果表明,甲壳素纤维对羟基功能化纳米银具有较高的吸附能力,最高吸附量可达3 390 mg/kg;纳米银颗粒在甲壳素纤维表面分布均匀,且未被氧化;另外,抗菌测试结果表明载银甲壳素纤维具有优异的抗菌性能,当银含量达到1 000 mg/kg时,其对E.coli和S.aureus的抑菌率均可达99%以上。 相似文献
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In order to improve the dye depth of TiO2-modified wool fibers, chitosan is incorporated with tetrabutyl titanate in preparing the nanosized TiO2 particles, which are loaded on the surfaces of wool fibers, during hydrothermal process. The TiO2 coated wool fibers are subsequently dyed with Lansol Blue 3G. The structural changes of wool fibers before and after treatments are characterized by several techniques, such as field emission scanning electron microscope, energy-dispersive X-ray, transmission electron microscope, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, thermal gravimetric analysis, and diffuse reflectance spectrum. The properties of tensile, antibacterial activity, yellowness and whiteness indices, dye uptake, K/S value, color fastness to washing, rubbing, and artificial light are also compared. It is found that the as-prepared TiO2 particles with pure anatase phase are easy to agglomerate because of the introduction of chitosan. Meanwhile, the aggregated particles are deposited on the surface of wool fibers via a simple hydrothermal route. Compared with the original wool fibers, the thermal behaviors of the TiO2 coated wool fibers change slightly. The performances of UV protection, antibacterial activity, dyeing depth, and color fastness to wet rubbing and artificial light are improved to some degree. However, the tensile properties of wool fibers decrease but not too much. 相似文献
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本文选择4种具有不同微结构的壳聚糖,与淀粉形成复合材料,并对复合溶液的流变、粘弹性能以及复合薄膜的机械性能进行探讨,利用复合材料对含药片剂进行薄膜包衣,考察其控释性能。实验结果发现,壳聚糖/淀粉复合溶液具有假塑性流体特征,壳聚糖粘均分子量越大,剪切稀化现象越明显。同时,在复合薄膜制备过程中,壳聚糖可促进淀粉分子链的排布,提升复合薄膜的抗拉强度、断裂伸长率,调控壳聚糖微观结构可改善复合薄膜的机械性能。当包衣片剂运转至模拟肠液,借助壳聚糖上的-NH_3~+与淀粉的-OH间的氢键作用,片剂外可形成凝胶层,阻碍药物的释放,壳聚糖分子量越大,药物从复合薄膜包衣片剂中释放的累积量越小。以粘均分子量2.543×10~5 g/mol的壳聚糖CTS60与玉米淀粉制备的复合薄膜包衣片剂,约有70.59%药物可递送至肠道,其中有21.83%释放于模拟小肠,48.77%释放于模拟结肠,表现出一定的控释性能。 相似文献
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Experimental investigations are conducted to study the effectiveness of protective coating with cashew nut shell liquid (CNSL) on coir. CNSL solution has been applied on suitably pretreated coir yarns and coating concentrations are optimized to reduce moisture absorption and microbial growth. Two common cellulose and lignin degrading fungi (Aspergillus niger and Rhizopus stolonifer) have been taken as test organisms. Qualitative and quantitative analyses are carried out to measure fungal growth on untreated and treated fibers. The study shows that treated fibers inhibit the development of fugal growth on fiber surface by 95%. The reduced moisture absorption and improved hydrophobicity of the treated yarns are also reported. Increase in tensile strength up to 17% is noticed. The better properties achieved are explained on the basis of selection of the coating methodology and also the interfacial features of the coatings with the coir fiber. The results indicate the possibility of future application of such treated fibers in geotextiles having better performance compared to the untreated counterparts. 相似文献