共查询到18条相似文献,搜索用时 62 毫秒
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采用常压介质阻挡放电技术对涤纶春亚纺织物进行表面改性,探讨不同放电功率、放电时间下织物润湿性能的变化。使用衰减全反射红外光谱法和X射线光电子能谱技术研究织物表面改性后化学组成及元素含量的变化,利用原子力显微镜表征改性后织物表面形貌的变化,并分析改性后织物的拉伸性能和透湿量。结果表明:常压介质阻挡放电改性可以极大地提高涤纶春亚纺织物的润湿性能,这源于织物表面氧元素的含量增加及表面粗糙化;改性后织物的断裂强力和断裂伸长率有所增加,透湿量也得到明显改善。 相似文献
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针对涤纶亲水性能差的问题,采用低温等离子体对涤纶织物进行表面改性处理,探究在气压为300 Pa,功率为5.5 W时介质阻挡放电等离子体对涤纶织物性能的影响。测定处理后织物的动摩擦因数、强力、亲水性等性能以及放置过程中的性能变化,并对涤纶的微观形态以及表面化学成分进行表征,分析涤纶的等离子体改性机制。结果表明:等离子体对涤纶表面刻蚀,在纤维表面产生裂痕和空洞,增大了纤维的表面积;动摩擦因数随着等离子体处理时间的延长而增大,强力随处理时间的延长而降低,最高降低了25%;处理后织物的毛细效应提高了75%,对水的接触角降低了33.3%,涤纶表面羟基增多,有效改善涤纶的吸湿性与亲水性;等离子体处理涤纶具有一定的时效性。 相似文献
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研究等离子体处理时效性产生原因及对涤纶织物润湿性能的影响。采用常压空气等离子体对涤纶织物进行表面改性处理,观察了未处理和处理后放置不同时间的纤维表面形貌,并测试织物表面化学成分及涤纶织物经等离子体处理前后的润湿时间。结果表明:等离子体处理可以显著提高涤纶的表面润湿性,但在放置过程中,去离子水的润湿时间会随涤纶表面含氧基团数量的减少而延长,而纤维表面的刻蚀效果与刚处理后相比则无明显的区别。认为:等离子体处理的时效性是由涤纶纤维表面C、O化学组分的改变所造成。 相似文献
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为了改善羊毛织物的数码印花性能,采用介质阻挡放电(DBD)常压等离子体对羊毛织物进行表面改性.运用场发射扫描电镜(FESEM)、X射线光电子能谱仪(XPS)、视频光学接触角测量仪等表征手段,考察了等离子体处理对羊毛织物表观微形貌、化学组成、润湿性、白度、强力、手感及其数码印花性能的影响.研究结果表明:经常压等离子体处理后,羊毛纤维鳞片层被刻蚀和氧化降解;碳元素含量下降,氧元素含量显著增加,硫元素含量变化不大;织物白度无显著变化,润湿性能改善,断裂强力有所提高,使羊毛织物的印花性能明显改善.黑色和红色喷墨印花墨水在织物上的K/S值分别提高了77%和43%,且其干、湿摩擦牢度分别可达4级和3级以上,皂洗牢度可达4~5级,织物印花图案轮廓清晰,无明显渗化现象. 相似文献
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使用氩气/氧气混合气体对一涤纶织物进行了处理,通过测定处理后的织物吸湿性的差别,讨论了处理时间与处理压强对处理效果及抗老化效果的影响。结果证明,较长的处理时间与较大的处理压强对处理效果都有积极影响,但过大的处理压强会对处理的抗老化性能产生负面影响。 相似文献
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聚酯纤维是世界上应用最广泛的合成纤维,然而其某些性能影响了它的应用.表面改性是改善聚酯纤维性能的重要方法.文章介绍了酶对聚酯纤维处理的效果及机理.聚酯纤维经酶处理后,形态结构和物理机械性能均发生明显变化,亲水性及吸湿性提高,染色性能改善,导电性能增加. 相似文献
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低温等离子体对聚酯薄膜表面改性的研究 总被引:4,自引:2,他引:4
用空气介质阻挡放电(DBD)和大气压辉光放电(APGD)产生常压低温等离子体,并用其对聚对苯二甲酸乙二酯(PET)薄膜进行表面改性。用扫描电子显微镜(SEM)、测量接触角和X射线光电子能谱分析(XPS)等手段,研究经APGD和DBD处理前后PET的表面特性。试验结果表明,PET表面经APGD和DBD等离子体处理后,其表面微观样貌和表面化学组分均发生变化。APGD的处理效果优于DBD,即APGD可以对PET表面进行均匀处理,在表面引入更多的极性基团,使接触角下降到更低值。经APGD和DBD处理10s后,PET表面的含氧量分别增加到39%和35%,表面接触角分别下降到19°和37°。 相似文献
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Polyester has been widely used as an apparel and technical textile material in the form of fibers, films and plastics due to its excellent mechanical and physical properties. However, its poor surface properties have limited its end‐use versatility. In this study, the surface of a polyester fabric was modified by atmospheric pressure plasma treatment with oxygen under different operating conditions to improve the hydrophilicity and dyeability of the fabric. The oxygen plasma‐treated polyester surfaces were exposed to different treatment times and were analyzed to investigate the changes in the morphology and chemical nature of the surface by scanning electron microscope (SEM) and X‐ray diffraction and by Fourier transform infrared (FTIR) spectroscopy, respectively. The surface roughness of the fabric was improved by plasma etching, which was confirmed by SEM and X‐ray diffraction, as well as the increased presence of oxygen‐based functional groups on the polyester fabric, which was confirmed by FTIR spectroscopy, resulted in an improvement in the fabric wettability. The color strength values of the oxygen plasma‐treated fabric, dyed with disperse dyes at 100°C, were slightly higher than those obtained using the untreated fabric at 130°C. The surface roughness and K/S values of the treated fabric decreased as the ageing period was increased up to 42–63 days. The color fastness properties of the dyed oxygen plasma‐treated fabric were excellent. 相似文献
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This paper investigates the parameters of atmospheric pressure plasma (APP) jet for enhancing the hydrophobicity of polyester surface in imitation leather with a precursor of tetramethylsilane. A wide range of process parameters were studied. Under a specific combination of process parameters, a hydrophobic surface was obtained on the APP-treated sample with good hydrophobicity to water, coffee as well as milk tea. 相似文献
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Mine Akgun 《纺织学会志》2013,104(4):383-391
Effect of abrasion on surface roughness properties of textured polyester woven fabrics has been investigated. The effects of weft density, weft yarn filament number, fiber fineness, and weave pattern on surface roughness after abrasion were studied. Surface roughness values of control fabric (not abraded) and abraded fabrics after four different abrasion cycles were discussed according to different constructional parameters. Surface roughness values of fabrics changed according to abrasion cycles and the changes were related to yarn float lengths, yarn densities, yarn fiber fineness, and initial fabric surface roughness. A general overview of the results showed that abrasion eliminated the effect of texture especially at the fabric samples with initially high surface roughness. The surface roughness of fabrics with initially high surface roughness decreased at a greater extent than the ones with low surface roughness after abrasion. Fabrics with high surface roughness were affected more by abrasion and the effect of abrasion on rough surfaces depended on different manners regarding the compactness of woven structures. 相似文献
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低温等离子体亲水改性聚丙烯熔喷非织造布 总被引:4,自引:0,他引:4
利用常压介质阻挡放电(APDBD)和低压辉光放电(LPGD)等离子体分别对聚丙烯(PP)非织造布进行亲水改性。分析了气体种类、压强、放电频率、电压、处理时间以及非织造布物理结构等因素对亲水改性的影响规律。采用傅里叶变换-表面衰减全反射红外光谱(FTIR-ATR)表征材料表层化学结构的变化,选用吸水率和吸水速率评价样品的亲水性。结果表明:氧气等离子体能够比氩气等离子体更有效地提高非织造布的吸水率和吸水速率;增大放电频率和电压以及适当延长处理时间,均可显著提高材料的亲水改性效果;样品的比表面积越大, 体积密度越小,材料的吸水能力越高。 相似文献
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常压等离子体处理改善涤纶染色性能的研究 总被引:11,自引:1,他引:11
使用不同气体的常压介质阻挡放电等离子体对涤纶织物进行处理,研究了涤纶织物处理前后表面形态的改变情况,以及由此产生的织物上染分散染料后K/S值和摩擦牢度的变化情况。研究证明,处理后涤纶织物的染色性能得到大幅度提高。 相似文献
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针对涤纶织物亲水性较差的问题,采用特异腐质霉(H.insolens)来源的角质酶对其表面进行改性。通过单因素变量试验对反应残液进行紫外光吸光度测试,确定角质酶处理涤纶织物的优化工艺条件:角质酶用量为100 U/mL,时间为72 h,pH值为8.5,温度为60 ℃。在此条件下,加入表面活性剂Trition X-100(为0.1%)能显著提高角质酶催化水解涤纶织物的产物释放量。测定了反应残液中产物的种类、处理前后织物的亲水性和染色性能,并对涤纶织物表面形貌以及表面化学成分进行表征,分析涤纶的酶法改性机制。结果表明:角质酶水解涤纶产物主要是单(对苯二甲酸-2-羟基乙酯)(MHET)和对苯二甲酸(TPA);角质酶处理后涤纶织物的接触角由93.4°降至83.1°;处理后织物的亚甲基蓝染色深度值显著增加。 相似文献