共查询到18条相似文献,搜索用时 171 毫秒
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为提高安芙赛阻燃纤维织物的阻燃性能,采用极限氧指数法研究机织物纱线线密度和捻度、织物组织、经密、织物面密度等参数对其阻燃性能的影响.结果表明:双层织物的阻燃性能优于单层织物,极限氧指数均大于31.0%;双层织物的密度、纱线线密度、捻度越大,极限氧指数越高.此外,对安芙赛非织造布阻燃性能的研究结果表明:安芙赛非织造布极限氧指数随面密度的增加而提高;当安芙赛纤维与阻燃涤纶混合制备阻燃非织造布时,安芙赛纤维的含量应高于60%;当安芙赛纤维与羊毛纤维混合制备阻燃非织造布时,安芙赛纤维的含量应高于25%. 相似文献
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研究腈氯纶棉混纺织物阻燃性能和力学性能与混纺比之间的关系。设计了6种混纺比纱线并织成同一规格织物,通过垂直燃烧试验法和极限氧指数法测试分析织物的阻燃性能,并测试分析织物的拉伸断裂强力、撕破强力和顶破强力。研究结果表明:腈氯纶含量大于44%时,混纺织物极限氧指数大于27,并且混纺织物垂直燃烧测试达到了阻燃机织物阻燃性能B1级要求;腈氯纶含量在56%~71%之间时,混纺织物拉伸断裂强力、撕破强力和顶破强力出现最低值。 相似文献
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为获得长效阻燃、高强、耐磨且服用性能好的织物,将芳纶1414、阻燃粘胶与阻燃锦纶3种本质阻燃纤维混纺织造,探讨了混纺比、纱线捻度、织物组织结构和黏合剂种类对纱线及其织物力学性能、阻燃性能和色牢度的影响。结果表明:芳纶1414/阻燃粘胶/阻燃锦纶(30/45/25)混纺纱线同时具备优异的力学性能和阻燃性能,阻燃锦纶的加入使三元混纺纱线断裂强度相比芳纶/阻燃粘胶二元混纺纱线提升56%,耐磨次数提升58%,其纱线的力学性能随着捻度增加先增强后降低,峰值捻度为680捻/m;织物采用斜纹组织结构时,其阻燃性能和力学性能优于平纹和缎纹组织;采用非离子型丙烯酸酯共聚物G-BD作为印花浆料黏合剂,可使得到的高强耐磨阻燃织物水洗20次后变色牢度级数仍保持在2级以上。 相似文献
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为探究建筑用针刺非织造布保温材料的保温性和阻燃性,以再生棉纤维和阻燃涤纶纤维为原料,采用非织造针刺工艺,制备7组不同比例的非织造布保温材料。其中,对100%再生棉纤维试样进行阻燃整理剂后整理,并测试7组试样的透气性、保温性和阻燃性。结果表明,经过阻燃后整理的试样,透气性减小,拉伸强力减小,保温性降低,阻燃性能最好;混合阻燃纤维的试样,随着阻燃纤维含量的增加,透气性有所提高,拉伸断裂强力增加,保温性能略有提高。当阻燃纤维含量为55%~70%时,阻燃性能随着阻燃纤维含量的增加而增加;当阻燃纤维含量为70%~80%时,阻燃效果趋于稳定。 相似文献
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根据织物阻燃的机理,将阻燃聚酯切片与色母粒共混进行熔融纺丝,以纺制的阻燃涤纶有色丝为原料,设计开发了一款色织阻燃遮光面料。对阻燃遮光面料开发的织前准备、上机织造和后整理工艺等进行了总结和归纳。经断裂强力、阻燃性能、遮光性能等测试发现,在一定比例范围的阻燃添加剂及色母粒的添加条件下,纱线的断裂强力、断裂伸长率相对接近,但可纺性随添加物含量的增加而变差。由于减少了染色,避免了纱线的阻燃成分的流失,该面料具有良好的阻燃效果,由于采用了双经轴、高密度、多层组织和深色丝线的组合设计,面料的遮光率达到99.99%。 相似文献
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This study aims to investigate the mechanical properties, far-infrared (FIR) emissivity, and limiting oxygen index (LOI) of FIR ray/low-melting-point (LM) nonwoven fabrics, flame retardant (FR)/LM nonwoven fabrics, and FIR/FR/LM composite nonwoven fabrics, which are with or without heat treatment and also investigating the effect of heat treatment on the LM polyethylene terephthalate (PET) fibers. Test results show that for FIR/LM nonwoven fabrics, applying heat treatment leads to the better mechanical properties and FIR emissivity of 0.90. For FR/LM nonwoven fabrics, unheat-treatment samples have greater mechanical properties and an LOI of 34. For FIR/FR/LM composite nonwoven fabrics, the unheat-treated samples exhibit greater tensile properties, but the heat-treated samples exhibit greater puncture resistance, burst strength, and FIR emissivity. The structural parameters of the composite nonwoven fabrics can be adjusted according to the demand of users in terms of FIR emissivity and flame retardancy, and the composite nonwoven fabrics are thus expected to be used as construction materials for medical systems. 相似文献
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Flame retardant functionality was imparted in cellulosic textile using spinach leaves juice (SJ), an eco-friendly natural product. The extracted juice was made alkaline and applied in fresh bleached and mercerized cotton fabrics. Flame retardant properties of the control and treated fabrics were analysed in terms of limiting oxygen index (LOI), horizontal and vertical flammability and radiant heat testing. The study showed that the treated fabrics had good flame retardant property compared to control fabrics. The LOI value was found to increase by 1.6 times after application of SJ. As a result of this, the fabric does not catch flame. In horizontal flammability, the treated fabric showed burning with afterglow (without presence of flame) with a propagation rate of 10 mm/min, which is almost nine times lower than the control fabric. The thermal degradation and pyrolysis was studied using thermogravimetric analysis. The chemical composition of the control and SJ-treated cellulosic fabric were analysed by FTIR, SEM and EDX. Durability of the flame retardant functionality to soap washing and weathering had also been studied. After application of SJ, cellulosic fabric sample produced natural green colour. There was no significant change in other physical properties. 相似文献
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以甲基丙烯酸缩水甘油酯(GMA)为接枝单体,用紫外光(UV)接枝的方法将GMA接枝到苎麻织物(Pure Ramie)上,接枝后的织物(Ramie-g-GMA)用乙二胺(ED)胺化(Ramie-g-GMA/ED),再用磷酸(OP)磷酸化(Ramie-g-GMA/ED/OP),制得阻燃改性的苎麻。通过热重分析(TGA)、傅立叶红外光谱(FTIR)、扫描电子显微镜(SEM) 和极限氧指数(LOI)等技术和手段研究了阻燃改性前后的苎麻的热降解行为、阻燃性能和结构形貌,并考察了光照时间、引发剂二苯甲酮(BP)浓度、GMA浓度等因素对GMA接枝率的影响。扫描电镜分析和红外光谱研究结果表明GMA接枝到苎麻织物上;GMA接枝率随着光照时间、引发剂浓度和单体浓度的增加而增大;接枝反应20 min、BP浓度为0.3 mol/L、GMA浓度为30 %(v/v)时,GMA接枝率达到35.61 %,织物仍保持很好的手感;磷酸化后的织物在燃烧过程中因磷的催化成炭作用,显著地提高了苎麻织物的阻燃性能;GMA接枝率为50.65%的苎麻织物胺化、磷酸化后LOI可达38.6%。 相似文献