纤维柔软度仪的测定精度及样本容量的研究

本文就纤维柔软度仪的样本容量问题，研究了影响测定精度的因素，通过试验对部分结构参数确定了较合理的数值，然后算出样本容量．     

涤纶纤维的碱性染色

本文对涤纶碱性染色存在的分散染料耐碱性问题作了研究，从工厂常用分散染料中筛选出了部分适用于碱性染色的染料；并对涤纶碱性染色时染料的移染性、前处理退浆程度对染色质量的影响、纤维表面浮色量和纤维表面结晶低聚物量作了分析。     

松弛热定型对可染丙纶结晶结构及上染率的影响

本文以松弛热定型的方式对分散染料可染丙纶分别在１０５，１１０，１２０，１３０，１３５，１４０℃处理２０ｍｉｎ．采用Ｘ－ｒａｙ衍射法测定试样的结晶度，并计算（１１０）晶面法线方向的晶粒尺寸；测定了定型前后的试样在常压沸染下的上染率．从而，研究了试样定型前结晶结构与纺丝成形条件的关系、定型后结晶结构的变化及其与上染率的有机联系．     

复合纱新产品的开发

结合国内外市场对纺织品的消费需求情况，介绍了纤维复合纺纱方面的新技术，对各种不同纤维之间的组合设计所产生的效果进行了探讨。可作为开发纺织新产品时的参考。     

MDC-29型电解槽钢衬玻璃钢槽盖的制作

从材料的选择、衬贴工艺、质量检查、防腐性能等方面详细介绍了用197#树脂制作MDC-29型电解槽钢衬玻璃钢槽盖的过程.其完全能够代替MDC-29型电解槽全玻璃钢槽盖.     

可替代发泡塑料餐具理想产品的现状及发展

综述了可替代发泡塑料餐具理想产品的分类及发展现状,重点论述了和解发泡塑料型及植物纤维、淀粉、纸浆模塑型的发展现状及存在问题,同时阐述了可替代发泡塑料餐具理想产品的发展。     

稻草纤维填充聚丙烯材料的研究

以马来酸酐接枝聚丙烯（PP－g－MAH）为增容剂,改善了稻草纤维与聚丙烯（PP）的相容性;研究了稻草纤维制备方法和纤维含量、增容剂含量等对填充PP力学性能的影响,并考察了材料的热稳定性。当稻草纤维含量为30％－40％时,其弯曲强度为61．88－69．79MPa;冲击强度为12．0－13．0kJ/m^2;拉伸强度为32．59－39．72MPa。     

The stability of monochlorotriazinyl reactive dyes on cellulose films in aqueous alkaline solutions containing peroxide bleaching agents

The stability of seven reactive (one difluoromonochloropyrimidinyl and six monochlorotriazinyl) dyes on cellulose immersed in sodium peroxoborate (PB) solution (UK–TO solution) containing tetraacetylethylenediamine (TAED) was examined using cellulosic films at 60 °C. The extent of dye loss that occurred from the dyed cellulosic films which were immersed in the UK–TO solution without detergent correlated closely to the ratings obtained using the BS 1006 UK–TO wash test. The dye loss that occurred from the dyed cellophane films was attributed to three contributions, namely, alkaline hydrolysis of dye–fibre bonds, oxidative fading of the dye chromophore by peroxides and cellulose degradation accelerated by PB and TAED. The alkaline hydrolysis of the dye–fibre bond and the extent of cellulose degradation in the UK–TO solution were the main contributions to the dye loss; dye oxidation was a minor factor in the dye loss mechanism. The physical bonding of the dye molecules reinforced the covalent dye–fibre bond stability towards the UK–TO solution.     

Influence of Water on Properties of Cellulosic Fibre Reinforced Polypropylene Composites

Abstract

Flax fibers with different moisture content were used as reinforcement in polypropylene matrix with maleic anhydride grafted polypropylene coupling agent. Mechanical properties-three point bending and Izod impact strength-were investigated as a function of moisture content of the fiber, and amount of applied coupling agent.

By decreasing the moisture content of the fiber all the investigated properties can be improved. Using PPgMA as coupling agent the three point bending characteristics (flexural strength, flexural modulus, and ultimate bending stress) were better, while the impact strength decreased.     

A comparative investigation of interfacial adhesion behaviour of polyamide based self-reinforced polymer composites by single fibre and multiple fibre pull-out tests

Abstract

Interfacial adhesion of composite materials plays an important role in their mechanical properties and performance. In the present investigation, analysis of the interfacial properties of self-reinforced polyamide composites by using microbond multiple fibre pull-out test is emphasised. Microbond specimens prepared through thermal processing are tested for their interfacial properties by multiple fibre bundle pull-out tests and compared with that of traditional single fibre pull-out test specimens. Multiple fibre pull-out addresses the volume fraction as well as eliminates the possibility of fibre breakage before matrix shear. Higher scatter in the data in the samples is addressed in the present studies. FTIR and Fractographic studies are carried out for deep understanding of the post pull-out interfacial adhesion.