载银纳米氧化锌改性PET纤维研究

用T-氨丙基三乙氧基硅烷处理过的载银纳米氧化锌抗菌剂与PET共混制得PET抗菌母粒,通过复合纺丝制得抗菌剂质量分数为1%的皮芯型抗菌PET纤维。结果表明:抗菌剂在抗菌PET纤维中均匀分散,抗菌PET纤维对大肠杆菌、金黄色葡萄球菌的杀菌率均达99%以上;抗菌PET纤维较PET纤维强度和结晶度有所下降,玻璃化转变温度有所提高,熔点和结晶温度变化不大。     

纳米复合抗菌丙纶性能研究

将聚丙烯 ,纳米陶瓷粒子 ,沸石混合造粒制得抗菌母粒 ,聚丙烯切片与抗菌母粒共混熔融纺丝 ,得到纳米复合抗菌丙纶。测试了纤维的抗菌性能、热性能、力学性能 ,并对纳米粒子及纤维进行了扫描电镜分析。结果表明 :纳米抗菌剂最佳含量在 0 .8%左右 ,纤维抑菌率达 90 %以上 ,且耐久性好。纤维结晶度下降 ,而熔点提高。纳米抗菌剂在纤维中有少量凝聚 ,纤维断裂强度略有降低 ,但能够满足加工及服用要求     

亲水抗菌聚酯纤维的研究

采用精对苯二甲酸(PTA)、乙二醇(EG)与多羟基化合物共聚,制得亲水聚酯(PET)切片,将该亲水PET与银系抗菌母粒共混纺丝,制得亲水抗菌PET纤维,并对其性能进行了研究。结果表明:加入相对PTA质量分数为0.8%的多羟基化合物,亲水PET的亲水性能较好,表面接触角为53.5°,特性黏数为0.591dL/g;亲水抗菌PET纺丝温度比常规PET切片低15～20℃;添加银系抗菌剂质量分数为10%的亲水抗菌PET纤维有较佳的抗菌性能,对金黄色葡萄球菌和大肠杆菌的抗菌率均大于99%,抗菌活性值均大于2,断裂强度为2.6 cN/dtex,回潮率约0.8%。     

抗菌剂生产现状与市场分析

抗菌剂是具有抑制和杀菌性能的新型助剂，通常在聚合物材料中添加一种或者几种特定的抗菌剂成份可以制得功能性新材料，如抗菌塑料、抗菌纤维等，其中塑料是抗菌剂应用最广领域，因此抗菌剂成为倍受关注的新型塑料助剂品种之一。     

抗菌剂抗菌剂在化学纤维中的应用前景看好

抗菌剂是一类具有抑菌和杀菌性能的新型助剂，通常在化纤聚合材料中添加一种或几种特定的抗菌剂成分即可制得功能性抗菌纤维，具有广泛的用途。正因为在化纤材料中被赋于了抗菌性，     

静电纺丝抗菌聚氨酯纳米纤维的结构与性能

在聚氨酯/四氢呋喃-N,-二甲基甲酰胺(PU/THF-DMF)溶液中分别添加质量分数为5%的TiO_2-Ag,HM-98,三氯均二苯胺(TCC),4-氯-3,5-二甲基苯酚(PCMX),2,4,4'-三氯-2'-羟基二苯酚(DP 300),ε-聚赖氨酸(ε-PLYS)抗菌剂通过静电纺丝技术制备了PU抗菌纳米纤维,并对其性能和结构进行了研究。结果表明:含ε-PLYS,HM-98,TiO_2-Ag,DP300抗菌剂的抗菌PU纳米纤维对金黄色葡萄球菌和大肠杆菌的抗菌效果较为优良,抗菌率均达到了99.9%以上,TCC、PCMX抗菌剂的抗菌效果较差;添加HM-98抗菌剂降低了纺丝溶液的可纺性,但纤维直径有所下降;抗菌剂在PU中的分散性好。     

酚类植物提取液抗菌PA6纤维的制备及性能研究

以酚类植物提取液为抗菌剂,聚己内酰胺(PA 6)为载体,制备抗菌母粒;采用抗菌母粒与PA 6切片共混纺丝,制备抗菌PA 6纤维,研究了其可纺性及抗菌性能。结果表明:该抗菌剂具有较好的抗菌效果,且对纺丝过程无明显影响;抗菌母粒中酚类植物提取液质量分数为10%,260℃时热失重率为4.2%,纺丝温度应小于260℃;共混纺丝时,抗菌母粒质量分数为3%,纺丝温度230~255℃,拉伸倍数5.3,纺丝顺利,无断头现象,所得抗菌PA 6纤维断裂强度为5.95 c N/dtex,断裂伸长率为35.3%,对大肠杆菌和金黄色葡萄球菌的抗菌率均达99%以上;抗菌PA 6纤维经高温染色后,抗菌性能略有下降,高温热水条件下耐久性欠佳,宜采用原液着色。     

PA6抗菌纤维的研制与开发

探讨了PA6抗菌纤维的生产工艺,并与普通纤维进行了比较。结果表明:添加银离子抗菌剂质量分数为2%,抗菌效果较好。PA6抗菌纤维纺丝温度比普通纤维低5～7℃,选择卷绕角度应为1.2°～1.4°,纺丝速度不低于4 000 m/min,控制纺丝张力14 cN,卷绕头接触压力120 N,含油率0.5%～0.8%,可生产出质量合格的83 dtex/23 f PA6抗菌DTY产品。     

壳聚糖/纤维素抗菌纤维的研究与展望

壳聚糖是一种广谱抗菌剂，和纤维素具有相似的分子结构和良好的相容性，可用于改性纤维素纤维研制抗菌纤维。目前，基于纤维素纤维的工业生产方法,这种抗菌纤维的研究开发主要集中在粘胶法上，随着纤维素纤维溶剂法纺丝的出现，抗菌纤维的研究也应该向这种环保，节能，直接的方法转变，本文在对壳聚糖／粘胶纤维的研究工作作了总结之后，对这种抗菌纤维的溶剂法纺丝作了初步探讨和展望。     

功能性发制品用PVC纤维纺丝工艺探讨

将Zn-Ni复合抗紫外材料及含磷抗菌剂应用于假发用PVC纤维中,通过熔融纺丝方法得到功能性PVC发用纤维,使其具有抗菌、抗紫外的功能性。研究了纺丝工艺参数对成品丝性能的影响,通过调整纺丝工艺得到适合发用PVC纤维的合适工艺。成品丝经抗菌测试,其抗菌率在95%以上,UPF值为500,远远大于标准值,且UVA及UVB均小于5%,满足防紫外线产品的要求。     

新型防螨抗菌聚酯纤维的开发

以非溶出性、无机陶瓷防螨剂及太极石等原料制备微米级蓄热防螨陶瓷粉末,以硝酸银、氯化钠、偏钛酸等原料制备载银纳米二氧化钛复合抗菌粉体,进而制备蓄热防螨陶瓷母粒和载银纳米二氧化钛复合抗菌母粒,经共混纺丝得到防螨抗菌聚酯纤维。该纤维具备防螨、抗菌、促进新陈代谢、安全环保的特点。     

抗菌剂与EVA抗菌复合材料的研究进展

综述了EVA抗菌复合材料的研究进展,抗菌剂主要包括无机抗菌剂、有机抗菌剂、天然抗菌剂,并指出抗菌剂的发展方向。     

抗菌防臭PA66纤维的开发

采用喹啉系列抗菌剂与聚己二酰己二胺(PA66)切片共混干燥,经纺丝生产抗菌防臭PA66纤维。结果表明:抗菌剂的加入,使共混体系的熔点下降;抗菌剂粒径小于1μm,共混效果好;纤维中抗菌剂质量分数为0．2%～0．8%,抗菌防臭PA66纤维对金黄色葡萄球菌、枯草杆菌等有明显的抑制作用,其断裂强度为3．0～3．5 cN/dtex。     

抗菌纤维与抗菌剂体系

综述了微生物及其危害、抗菌纺织品的发展、有机、无机抗菌剂体系及存在问题;对国内外抗菌纤维开发状况、抗菌剂应用开发和实例、抗菌纤维的检测等进行了介绍。     

抗菌纤维与抗菌剂体系(二)

综述了微生物及其危害,抗菌纺织品的发展,有机、无机抗菌剂体系及存在问题,对国内外抗菌纤维开发状况、抗菌剂应用开发和实例、抗菌纤维的检测等进行了介绍。     

稀土β-成核剂改性无规共聚聚丙烯抗菌塑料的性能表征

讨论了无机金属离子/纳米二氧化钛抗菌剂和有机季铵盐抗菌剂对加入WBGⅡ的无规共聚聚丙烯(PPR)复合材料抗菌性能、力学性能和结晶性能的影响。结果表明:抗菌剂的加入明显地提高了PPR的抗菌能力,且无机抗菌剂的作用效果要优于所选取的有机季铵盐抗菌剂,但其对于基体力学性能的影响也较大。无机抗菌剂用量在6～10份时,对大肠杆菌、金黄色葡萄球菌的抗菌率分别达到93.8%～99.2%、91.7%～98.2%;有机季铵盐抗菌剂用量在2.5份时,对大肠杆菌、金黄色葡萄球菌的抗菌率分别达到91.0%、91.4%。     

The structure of γ‐glycidoxypropyltrimethoxysilane on glass fiber surfaces: Characterization by FTIR,SEM, and contact angle measurements

The purpose of this article is to determine the structure of γ‐glycidoxypropyltrimethoxysilane (γ‐GPS) on glass fiber surfaces. The interfacial adhesion of glass fiber–polymer can be improved by the silane treatment of the glass fiber. To change the composition of the glass and regenerate to the hydroxyl groups, activation pretreatment of heat cleaned woven glass fabric was performed using a 10% (v/v) hydrochloric acid aqueous solution for different durations before silane treatment. The treatment of silanization of heat cleaned and acid activated glass fibers with (γ‐GPS) were conducted at various time intervals. These fibers would be used to quantify the relationship between contact angle of glass fiber surface and the interfacial shear strength of the fiber–polymer interface. The effect of acid activation on glass surface and the interaction between glass fibers and silane coupling agent were examined using Fourier transform infrared spectroscopy. The experiments, in conjunction with electron photomicrographs of glass surfaces treated with coupling agent, are interpreted in an attempt to explain the stability of coupling agent‐glass interfaces. From SEM analysis, it was clearly observed that agglomerations of silane agent in the cavities among the heat cleaned fibers are available. However, this case was not observed for the silanization of acid activated glass fibers. In addition, contact angle measurements on glass fibers were performed to evaluate surface structure. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers     

Percolation threshold of electrically conductive master batch for polyester fibers application

In the case of the electrically conductive master batch (ECMB) for fibers application, higher filler content required to produce adequate conductivity can be accompanied by a reduction in spinnability and mechanical property of final fibers. To minimize these problems, ECMB with the character of lower percolation threshold was designed in this article. Carbon black (CB) was treated by titanate coupling agent. Polymer blend poly(ethylene terephthalate) (PET)/polyethylene(PE) was used as matrix instead of individual polymer matrix. The effects of titanate coupling agent treatment and the composition of polymer blend on the properties of ECMB have been discussed. FTIR and laser particle size distribution analyzer were employed to study the CB. Solubility tests and positive temperature effect peak were used to verify the distribution of CB in the polymer blend. These results showed that CB treated with 2 wt % titanate coupling agent and PET/PE polymer blend with the weight ratio of 60/40 appear to be an effective way to design the ECMB with a low percolation threshold. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 4144–4148, 2006     

炭黑填充PET/PE共混物导电性能的研究

将经偶联剂处理后的炭黑分别与聚酯、聚乙烯及聚酯／聚乙烯共混聚合物．通过双螺杆熔融共混，制备了纤维级导电母粒。研究了炭黑在聚酯／聚乙烯共混聚合物中的分布情况，讨论了共混聚合物对母粒导电性能和纤维力学性能的影响。结果表明，以聚酯／聚乙烯共混聚合物代替单一的聚合物作为母粒的载体树脂可用来设计具有低突增界限浓度的炭黑导电母粒。     

Photo-induced polymerization of methyl acrylate vapors on prewetted polyamide and polyester fibers

Photo-induced polymerization of methyl acrylate vapors on polyamide and polyester fibers occurred when these fibers were wetted with the polar solvents methanol, N,N-dimethylformamide, or dimethyl sulfoxide (neat or in aqueous solution). Polymer grafting was accompanied by homopolymer formation, with the amount of grafting and ratio of grafting to homopolymerization being dependent on the fiber type, the solvent used to wet the fiber, and the amount of water present in the wetting solution. Overall deposition of polymer was higher on polyamide than on polyester under all wetting conditions. Water present in the wetting agent had a limited effect on polymerization of poly(methyl acrylate) on polyamide, whereas water caused a rapid decrease in polymerization on polyester. The nature of polymer grafting on the fibers under various wetting conditions was examined by scanning electron microscopy and tensile property measurements, and the mode of polymer deposition was outlined in light of our findings.