Evaluation of some of the physical properties of atmospheric plasma treated polypropylene fabric

In this study, atmospheric pressure plasma (APP) treatment was applied to polypropylene (PP) fabric with non‐polymerizing gases, such as air, argon, and nitrogen. Properties of the APP‐treated samples including low‐stress mechanical behavior, air permeability, water vapor permeability, and thermal characteristics were evaluated. Tensile and friction coefficient of the specimens were also measured. The changes in these properties are believed to be closely related to the inter‐fiber and inter‐yarn frictional force induced by the APP. The decrease in the air permeability of the APP‐treated PP fabric was probably because of the plasma action effect on change in fabric surface morphology, which was confirmed by scanning electron microscopy micrographs. The change in the thermal properties of the APP‐treated PP fabric was in good agreement with the earlier findings and can be attributed to the amount of air trapped between the yarns and fibers. This study suggests that the APP treatment can influence the final properties of the PP fabric, and also provides information for developing APP‐treated PP fabric for industrial use.     

常压等离子体处理羊毛织物的数码印花

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.     

脉冲式常压空气等离子体对涤纶织物改性研究

采用脉冲式常压空气等离子体处理涤纶织物，分析处理时间、极板间距对涤纶织物毛效、透湿性和阳离子染料染色性能的影响；研究等离子体处理涤纶的时效性。结果表明，处理后的涤纶织物毛效和染色性能均显著提高，但透湿性能变化不大；涤纶等离子体处理具有时效性，但处理程度越大，时效性越不明显。     

常压等离子体处理对羊毛结构性能的影响

常压低温等离子体设备是一种在纺织行业中具有较大推广价值的设备,低温等离子体技术是一种改善天然纤维表面性能的有效方法.运用中科院光电研究院自行研制的准辉光介质阻挡放电常压低温等离子体设备对羊毛纤维进行了处理.文章对等离子体放电过程中,不同反应气氛、处理时间等条件进行了较为系统的实验,通过扫描电镜(SEM)、X射线衍射仪、XPS光电子能谱仪等设备对等离子体处理后羊毛纤维的结构与性能进行了细致的研究.实验结果表明:经不同气氛条件的等离子体处理后,羊毛纤维表面发生了不同程度的物理与化学刻蚀作用.     

常压等离子体表面改性涤纶织物

 通常真空环境下的低温等离子体被用来对涤纶织物表面改性,为了更为有效、批量地改性涤纶织物,自行研制常压介质阻挡放电连续处理装置,在不同气体(Ar,N2-Ar,O2-Ar)环境下分别对涤纶进行表面改性处理。测试了接触角、毛细效应、衰减时间和色差值,并拍摄了扫描电镜照片。结果表明,经常压低温等离子体处理的涤纶织物,其染色性能、表面润湿性能和抗静电性能都得到改善。     

Hydrophobisation of hydrophilic imitation leather with polyester surface by atmospheric pressure plasma treatment

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.     

常压等离子体处理改善涤纶染色性能的研究

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。     

Improvements in the dyeability of polyester fabrics by atmospheric pressure oxygen plasma treatment

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.     

常压空气等离子体处理涤纶织物的喷墨印花

采用脉冲常压空气等离子体对涤纶织物进行表面改性处理,再用浅品色纳米颜料墨水进行喷墨印花.探讨了等离子体处理时间和极板间距对K/S值的影响,并对处理前后的涤纶织物进行润湿性分析.结果表明,等离子体最佳处理工艺条件为:功率300W,时间180s,极板间距3mm.处理后涤纶织物的亲水性和防渗性显著提高,喷墨印花织物图案清晰、得色量高,且不影响印花色牢度.     

常压等离子体处理改善涤纶滤布的抗静电性能

使用常压介质阻挡放电等离子体对涤纶过滤布进行处理接枝乙烯类单体丙烯酸,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抗静电性能变化情况。研究证明,处理后涤纶织物的抗静电性能得到大幅度提高。     

常压等离子射流处理对羊毛织物正反面吸湿性的影响

文章研究了常压等离子射流处理对羊毛织物正反面吸湿性的影响.羊毛织物经氦气常压等离子射流处理后,测定未处理织物和处理织物正反面完全吸收水滴的时间,通过比较织物对水滴吸收时间来研究常压等离子射流对织物正反面的处理效果,阐述了在常压等离子射流处理羊毛织物过程中,功率、处理时间和气体温度对等离子体刻蚀在织物中渗透性的影响.     

RSM optimized self-cleaning nano-finishing on polyester/wool fabric pretreated with oxygen plasma

In this study, polyester/wool blended fabric was coated with titanium dioxide nanoparticles. To enhance the adsorption and loading of nanoparticles on wool and polyester fibers, the samples were pretreated by low-temperature oxygen plasma. Citric acid was used to fix the TiO₂ nanoparticles on the fibers. The self-cleaning property of the finished samples was tested under UV-A light. The effect of plasma treatment time besides the concentrations of TiO₂ nanoparticles and citric acid on the self-cleaning properties of the samples was analyzed and optimized using response surface methodology. The surface chemistry and morphology of the samples were studied using Attenuated total reflectance-fourier transform infrared spectorscopy (ATR-FTIR) and field emission scanning electron microscope, respectively. The results showed that plasma treatment has a great effect on the loading of the nanoparticles on the surface of the fibers and enhancing the self-cleaning properties of the finished samples. The plasma-treated samples showed better water absorbency, enhanced tensile strength and approximately the same handle compared to raw samples after coating with TiO₂ nanoparticles.     

常压等离子体增强化学气相沉积法表面功能化聚酯织物

对于纺织材料的表面改性来说,等离子体技术正成为一种新兴且环境友好的技术。等离子体技术在纺织品表面可沉积具有特殊功能的薄膜。阐述了一种常压等离子体增强化学气相沉积法表面改性100%聚酯织物的新型方法。通过傅里叶变换红外光谱研究了沉积于样品表面上相对于放电功率的等离子体聚合物化学和结构性质。采用雾化试验和接触角测量赋予织物诸如疏水等的功能特性。     

等离子体处理后超高模量聚乙烯的老化

主要研究了经常压等离子体处理后,超高模量聚乙烯纤维在恒温恒湿条件下的老化.测试老化时间分别为0、7、14和30 d时试样的层间剪切力、表面形态以及接触角.经等离子体处理后,超高模量聚乙烯纤维的层间剪切力比未处理纤维高3～4倍.14 d后纤维层间剪切力明显降低,到30 d时,降至接近未处理纤维的层间剪切力.等离子体处理后,超高模量聚乙烯纤维的接触角由128°降至73°.14 d后纤维接触角有明显增大,但始终高于未处理纤维的接触角.等离子体处理后,纤维的表面没有明显的刻蚀或粗糙现象.     

常压等离子体处理羊毛染色性能的研究

羊毛机织物经常压等离子体处理后,采用毛用活性染料染色,较常规染色工艺具有更优异的染色性能,表现为提高上染速率和固色率,以及缩短染色平衡时间,即使在较低的温度下染色,也能达到正常染色温度下的染色效果.如在70 ℃恒温染色时,常压等离子体处理后染色75 min,上染率达92.75 %;平衡上染120 min,上染率为98 %,固色率为92 %,大大提高了染色效果;由于等离子体的刻蚀作用,染色织物有增深效果.     

常压等离子射流处理对羊毛织物正反面染色性的影响

研究常压等离子射流处理对羊毛织物正反面染色性的影响,从而探索常压等离子射流刻蚀在织物中的渗透性。测定氦气常压等离子射流处理前后羊毛织物正反面染色性能,即通过比较染色后织物的K/S值来分析常压等离子射流处理工艺参数对织物正反面处理效果的影响。研究在常压等离子射流处理织物过程中,处理时间、喷头与基体间距离以及基体运行速度对常压等离子射流刻蚀在织物中渗透性的影响。结果表明,处理时间和喷头与基体间距离影响等离子射流刻蚀在织物中的渗透性,而基体移动速度对其无显著影响。     

回潮率对常压等离子体处理效果的影响

针对常压等离子体处理过程中存在水分的问题,研究回潮率对常压等离子体处理芳纶效果的影响。回潮率分别为0.5%、3.5%和5.5%的3种芳纶经常压等离子处理后,测定其动态接触角以及纤维与树脂间的层间剪切强度,采用原子力显微镜和X射线光电子能谱探测纤维表面发生的物理和化学变化。结果表明,随纤维回潮率的增加,处理后纤维的前进角和后退角减小,而纤维与树脂间的层间剪切强度、纤维表面的粗糙度以及极性基团增加,从而证明了纤维中水分的存在有助于常压等离子体改善芳纶的表面性能。     

常压等离子体降解黄曲霉毒素B1的效果研究

采用常压等离子体对乙腈中黄曲霉毒素B_1(AFB_1)进行降解。利用单因素实验,考察了放电间距、处理电压、放电时间以及AFB_1初始浓度对AFB_1降解率的影响,在此基础上进行了BoxBehnken的实验设计,选取AFB_1降解率作为响应值,优化了AFB_1的降解条件。结果表明:各因素对AFB_1降解率的影响大小依次为处理电压放电时间AFB_1初始浓度。常压等离子降解AFB_1的最佳工艺条件为处理电压170 V、放电时间236 s、AFB_1初始浓度5 mg/L、放电间距2 cm。AFB_1的降解率高达92.45%,与预测值93.94%相接近,偏差为1.49%。     

棉盖涤针织物的水性聚氨酯吸湿快干整理

采用水性聚氨酯型整理剂Z414、Y410A、N329B和SD-306C+HS-C-5对棉盖涤针织面料进行吸湿快干整理,并对整理织物的吸湿性和快干性进行比较.结果表明,10 g/L水性聚氨酯Y410A 吸湿排汗效果最佳,整理织物的吸湿快干性、导湿量、手感和弹性等都已达到常用的吸湿排汗整理剂的指标.     

等离子体预处理对聚吡咯/涤纶经编导电织物结构和性能的影响

为改善导电高聚物在涤纶经编针织物上的附着效果,采用常温常压等离子体预处理方法对涤纶织物进行表面改性处理,并通过原位聚合法制备了聚吡咯/涤纶导电针织物,研究了等离子体预处理对聚吡咯在涤纶针织物上附着效果的影响,借助扫描电子显微镜和电阻仪分析了导电织物的微观形貌以及平磨前后方阻值的变化。结果表明:等离子体预处理方法可增加聚吡咯在涤纶上的附着量,改善聚吡咯在涤纶上的附着牢度,提高导电织物导电层在平磨过程中的保持程度,且附着量与等离子体预处理次数存在相关性:当等离子体预处理次数为4时,聚吡咯在涤纶针织物上的附着效果最佳。