真丝织物径等离子体处理及丙烯酰胺接枝的研究

本文提出采用低温等离子体预处理后再对真丝织物进行丙烯酰胺单体接枝改性,从而改善织物的服用性能。本文通过实验确定了经等离子体预处理有利于提高织物的丙烯酰胺接枝效果,同时也得到了真丝织物的接枝处理最优工艺。经复合处理后,真丝织物的接枝率为9%左右,其织物吸水性能、染色性能及抗皱性能均明显提高,但其断裂强力有一定幅度下降。     

染色真丝织物的柠檬酸防皱整理

分别采用柠檬酸、2D树脂、柠檬酸／三乙醇胺整理真丝织物，分析了它们对真丝织物折皱回复角、染色牢度、服用性能及色差值的影响程度，同时分析了添加剂三乙醇胺的作用．结果表明，三乙醇胺能增加织物对阴离子染料的亲和力，明显改善整理织物的变色；可以提高真丝织物的湿折皱回复角，真丝织物的强力损失也得到降低．     

真丝织物在Mezzera连续精炼机精炼工艺的探讨

主要论述了真丝织物在连续精炼机精炼的加工方法，并着重讨论影响精炼效果的诸多因素，以及正确的处理方法。     

UHMWPE纤维表面紫外辐射接枝改性的研究

有氧开放体系下,采用紫外辐射接枝方法对超高分子量聚乙烯纤维织物表面进行改性．探讨了单体种类、浓度,引发剂,抗氧剂,接枝方法等不同因素对UHMWPE纤维织物表面处理效果的影响。通过SEM、红外光谱仪法分析了表面处理的超高分子量聚乙烯纤维织物外观形貌,并测试了以其作为增强材料的复合材料的层间剪切强度。研究结果表明,在有氧开放体系下,经紫外辐射接枝方法改性的超高分子量聚乙烯纤维织物,其粘结性得到了改善,由其制备的复合材料界面结合力得到加强,其层间剪切强度高于未经紫外处理制备的复合材料。     

接枝改性染色亚麻织物性能的研究

本文以高锰酸钾和柠檬酸为引发剂，用丙烯酰胺为单体对亚麻织物进行接枝改性，讨论分析了接枝改性对亚麻织物的染色性、抗皱性、织物的强度及染色的各项牢度的影响。     

低温氧等离子体处理对羊毛织物性能的影响

为了改善羊毛织物的毡缩、润湿等性能,采用低温氧等离子体对羊毛织物进行改性处理.通过单因素实验,综合评价羊毛织物处理前后的性能变化情况,分析了羊毛织物性能变化与等离子体处理时间、功率和压强变化之间的相互关系;利用原子力显微镜表征了处理前后羊毛纤维鳞片结构的变化情况.实验结果表明,利用低温氧等离子体对羊毛织物进行改性处理,可以获得较好的防毡缩效果,并能改善织物的润湿性能.有效控制处理条件,织物的断裂强力和伸长率不但不会减小,反而可以得到一定程度的增强.     

真丝织物悬垂美观性的研究

通过对真丝织物悬垂系数的测试和悬垂曲线的分析,提出评价悬垂美观性的几个指标,并用灰色关联度进行聚类,为全面评价真丝织物的悬垂美现性作出尝试。     

DBD等离子体处理对芳纶织物结构性能的影响

为改善芳纶织物增强复合材料的界面黏结性能,采用常压氦-氧介质阻挡放电(DBD)等离子体处理对芳纶织物进行表面改性,研究氧气流量变化对织物等离子体处理效果的影响.通过测试处理前后芳纶织物的表面形貌、结构组成、润湿性能、粗糙度和拉伸性能来表征等离子体的改性效果.结果表明:DBD等离子体处理后,芳纶纤维的表面经过刻蚀,粗糙程度明显增加;纤维的化学组成没有显著变化,仅CO等极性基团有所增加;芳纶织物的润湿性显著改善;拉伸性能略有提高.综合考虑,氧气流量为10mL/min时处理效果较好.     

涤纶织物纳米碳化锆粉体的表面改性

使用硅烷偶联剂KH560对纳米碳化锆粉体进行偶联改性处理,再使用改性后的纳米碳化锆粉体对涤纶织物进行整理及染色.利用扫描电镜、红外光谱和热性能测试技术对纳米碳化锆粉体和涤纶织物纤维表面形态、结构和热性能进行了表征.结果表明,纳米碳化锆粉体经过KH560改性之后,团聚现象明显改善,且发生了化学接枝反应,并通过KH560的桥接作用使纳米碳化锆颗粒牢固附着在涤纶纤维表面.涤纶织物经过纳米碳化锆粉体整理之后,起始和终止热分解温度均有所下降.染色之后纤维表面仍粘附有纳米碳化锆颗粒,纳米碳化锆整理对涤纶纤维染色和热性能没有影响.     

无声放电对聚酯织物表面的等离子体接枝改性

利用无声放电方法对聚酯（ＰＥＴ）纤维表面进行接枝改性,为改善聚酯织物的染色性能提供了一条新途径,傅里叶红外光谱（ＦＴＩＲ）和Ｘ射线光电子能谱（ＸＰＳ）表明,ＰＥＴ纤维经无声放电引发气相接枝丙烯酸改性后,表面的羰基、羟基和羧基等极性基团增加,氧碳摩尔分数比增大。扫描电镜（ＳＥＭ）观察发现纤维表面粗糙度随放电时间增加而增大,改性后的涤纶对碱性染料的上染率有所提高。     

Graft Modification of N,N''''-methylene- bisacrylamide onto Silk in the Presence of Air

The graft modification of N, N'-methylene-bisacrylamide (NNMBAA) onto silk using eerie ammonium sulfate, potassium persulfate, ammonium persulfate and 2, 2-azobis (isobutyronitrile) as the initiators has been studied in the presence of air. To establish reaction conditions for the graft modification of NNMBAA onto silk, the effect of different variables such as the initiator concentration, monomer concentration, acetic acid concentration, time of polymerization, reaction temperature and liquor ratio (fabric: liq.) have been studied. The optimum grafting conditions were found. As evidence of grafting, analyses of amino acid composition and alkali solubility have been carried out. Grafting caused changes in amino acid composition and alkali solubility of silk. The observation has been explained in relation to structural changes in the grafted silk.     

Research and Application of the Mathematic Model for the Washing Shrinkage of Woven Fabric

Having analyzed the relationships between washing shrinkage and weaving technique, parameters, material properties of woven fabrics and studied the shrinkage mechanism and its mathematical model of the plain fabric,researchers set up a shrinkage model of the twills and satins and proposed a method for calculating the washing shrinkage based on weaving technique and parameters of fabrics. Shrinkage experiments of silk habotai, silk twill and silk satin fabrics were performed. The results were compared with those of the theoretical computations, and it has been proven that the theoretical method is reliable.     

Structure and Properties of Silk Fibers Grafted with Vinyl Siloxane Monomer

IntroductionSilk are used extensively in textile field because of itsexcellent characteristics , but silk crease and yellow easily .Grafting of silk fibers with vinyl monomers is considered asan effective method to substantially i mprove its intrinsicproperties . The most popular vinyl monomers currently usedare methyl methacrylate[1 ,2], hydroxypropyl methacrylate[3]and methacrylamide[4]etc .. The properties of silk fibersgrafted with these monomers were i mproved . But thephysical propertie…     

Surface Graft Copolymerization of Acrylic Acid onto Corona Treated Cotton Fabric

Acrylic acid was grafted onto the surface of cotton fabric after being short time treated by corona-discharge inair in the presence of initiator.The means of gas-phaseSO_2 derivatization was used along with ESCA to deter-mine corona-discharge-induced-hydroperoxidegroups on the surface.The content of hydroperoxideshows a maxmium value at 15 sec.of corona-dischargetime.Effect of corona treatment time and various con-centration initlator on graft yield was studied.The addit-ion of initiator increases the graft yield.Acceleratedgraft with an increase in the concentration of Mohr's saltshows that peroxide groups on the corona treated cottonfabric initiate graft copolymerization.     

关于脆弱生丝织造性能的研究

将正常生丝、脆弱生丝、经柔软剂处理的脆弱生丝一起作为经丝上机织造,比较它们织造过程中断头、张力情况,并对织物的拉伸性能、染色性能作对比分析,结果表明:脆弱生丝经柔软处理后断头次数明显减少,织物强力有所增加,但与正常生丝一起染色存在色差.     

The Synthesis of Cyclodextrin Derivatives with Ethilenic Bond and Their Application on Silk

The cyclodextrin (CD) derivatives with ethilenic bonds mono-(2-O-tosyl)-6-acryloyl-β-cyclodextrin (β-CD-2-OTs-6-A) and 6-acryloyl-β-cyclodextrin (β-CD-6-A) were respectively synthesized.β-CD-2-OTs-6-A was prepared by the reaction propylene chloride with β-CD-2-OTs.β-CD-6-A was synthesized by the reaction propylene chloride with β-CD.The most suitable pH value for β-CD-6-A grafted onto silk fabric was proved to be 5.The optimal condition for grafting β-CD-2-OTs-6-A onto silk was proved:monomer concentration of 20％ on weight of fabric ( o.w.f),potassium persulfate of 1.85％ o.w.f,liquor ratio of 1:50,pH=5,and treated 30 min at80 C.Compared with β-CD-6-A,the grafting reaction has a higher graft yield while β-CD-2-OTs-6-A acts as the monomer.     

Longitudinal Mechanical Properties of Small-Diameter Polyurethane Vascular Graft Reinforced by Tubular Knitted Fabric

The vascular graft with 4 mm diameter was prepared by casting one layer of polyurethane (PU) film onto the knitting tubular fabric as the reinforced support. The effects of different PU content and wall thickness on the longitudinal mechanical properties of vascular graft were investigated. The breaking elongation, breaking force, initial modulus and breaking work were studied. The results showed that the longitudinal mechanical properties of vascular graft were enhanced as the content of polyurethane increased, which resulted from the combination of PU excellent elasticity and fabric preferable strength.     

STUDY OF THE MECHANISM OF PET CREPE TEXTURING AND PROPERTIES OF ITS FABRIC

PET crepe for making silk-like fabric can be obtained by high-twist and heat setting. Recently, new technology, that is hight-twist, heat setting and false-twist has been applied abroad. This paper selects two kinds of technology for making crepe, weaving and finishing, then craping effect, lustre feeling, shape feeling, and mechanical properties have been measured and compared for three kinds of crepe fabric(including silk fabric). The results show that the fabric made of PET stretch crepe possesses light soft, better craping effect and bulkness, the machincal properties are close to those of silk crepe.     

基于优化RBF神经网络的丝织物缝纫性能客观评价

提出了一种基于优化RBF神经网络的丝织物缝纫性能客观评价系统.该系统根据丝织物面料的FAST力学指标与缝纫性能之间的关系,运用神经网络的方法进行面料缝纫性能评价和预测,并提出了一种基于模糊核聚类的优化径向基神经网络学习算法.实验表明,该系统对一般丝型织物的缝纫平整性能评价预测具有客观、快速和高效等优点.