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1.
介绍了超韧尼龙6的最新研究进展.主要介绍几种超韧尼龙6制备方法,其中马来酸酐接枝聚烯烃弹性体与 PA6-无机纳米复合材料共混,能得到刚性、强度和铆性综合性能较好的超韧尼龙.  相似文献   

2.
超韧尼龙   总被引:1,自引:0,他引:1  
本文就国外超韧尼龙的发展现状、尼龙超韧化的途径、增韧的机理及要素,以及超韧尼龙的性能和用途等作了较详细的介绍,并就我国实际情况提出开发这一品种的现实意义。  相似文献   

3.
本文介绍了采用热烘箱法,通过阿累尼乌斯经验式对玻纤增强超韧尼龙6进行热氧老化寿命推算的研究结果。试验表明按照GB7142的原理和方法对尼龙类材料进行寿命推算是可行的,同时表明受试的增强尼龙6具有优良的耐热氧老化性能。  相似文献   

4.
尼龙6超韧化   总被引:4,自引:0,他引:4  
介绍了国外在尼龙6超韧化改性研究领域中的最新进展。主要介绍几经龙6共混物及其增韧的机理。  相似文献   

5.
超韧尼龙结构分析   总被引:1,自引:1,他引:0  
利用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察超韧尼龙的微观结构、得到了清晰的电镜照片,直观地反映了橡胶粒子在尼龙中的分布状态和颗粒大小。探讨了尼龙超韧机理以及影响韧性的几个因素。  相似文献   

6.
PA6/POE超韧合金的形态和性能   总被引:11,自引:2,他引:9  
介绍了尼龙6(PA6)和乙烯-辛烯共聚物热塑性体(POE)共混制得的PA6/POE超韧合 形态和性能,并与国外某些超韧PA6产品性能进行了比较。  相似文献   

7.
超韧尼龙66(SL—004)的研究   总被引:1,自引:0,他引:1  
介绍采用聚烯烃橡胶多元增韧的超韧尼龙66(SL-004)有关增韧机理和物理力学性能。并运用SEM、DSC、DMA、X—射线衍射等方法对其进行表征。表明该超韧尼龙66为细微相分散,可能存在互贯共连续相结构;结晶微结构产生变化以及冲击缺口发白区三斜晶系部分地向准六角晶系转变等结构特征。  相似文献   

8.
本文介绍了世界聚酰胺树脂近年来的生产量和美国、西欧、日本的消费量,详细论述了聚酰胺塑料的合成工艺,采用新工艺、新技术开发超韧尼龙、铸型尼龙、RIM尼龙、尼龙薄膜、尼龙泡沫、透明尼龙、难燃尼龙、填充增强尼龙等工程塑料的动向以及它们作为电气零件、汽车零部件、机械零件、航空材料、建筑器材、管板棒材、薄膜等用途。  相似文献   

9.
采用反应性挤出制备了PA6/ TPOgMAH 超韧尼龙,研究了合金产品的性能,结果表明,当PA6∶TPOgMAH 用量比70∶30 时,合金的冲击强度比纯PA- 6 提高了约4 倍,刚性降低不大,具有和弹性体超韧尼龙相同的力学性能。  相似文献   

10.
以聚醚、纳米炭黑等作为单体浇注尼龙(MC尼龙)的改性剂,采用原位聚合法制备了超韧耐磨MC尼龙,并对其性能进行了表征.结果表明,聚醚、纳米炭黑配合使用可大幅度提高MC尼龙的韧性和耐磨性;随聚醚用量的增加,MC尼龙的断裂伸长率、缺口冲击强度提高,而拉伸强度、密度、硬度和磨耗体积降低.  相似文献   

11.
介绍了己内酰胺和尼龙-6的用途,通过大量的统计数据,论述了世界、亚洲及我国己内酰胺和尼龙-6的生产、消费、价格、发展的情况,对我国目前己内酰胺、尼龙-6以及尼龙-6工程塑料的发展前景作了比较详实的介绍。  相似文献   

12.
抗静电增强尼龙6的研制   总被引:3,自引:0,他引:3  
以非离子和阴离子型抗静电剂组成复合抗静电体系,用玻璃纤维为增强剂,研制成具有良好的抗静电和机械性能的抗静电增强尼龙6,研究了抗静电复合体系构成,玻璃纤维含量对抗静电增强尼龙6性能的影响,并对其流变性能进行了考察。  相似文献   

13.
本实验采用动态力学方法研究了不同拉伸倍数尼龙6纤维的动态粘弹性,并应用密度梯度法,双折射法和X光衍射法等测定了拉伸尼龙6纤维的结构参数,如△n,ρ,R。实验结果表明:随着拉伸倍数的增加,尼龙6纤维的弹性模量逐步增加,α损耗峰的温度移向较高的温度。而α损耗峰的强度在拉伸2.5倍时达最大值,以后又随拉伸倍数的增加而下降。拉伸尼龙的粘弹性与结构参数之间也有很好的相关性。  相似文献   

14.
Unidirectionally reinforced thermoplastic composites of Nylon-6 and polypropylene oxide-Nylon-6 block copolymers have been prepared by the reaction injection molding (RIM)-pultrusion process. This process takes advantage of both the RIM and the pultrusion techniques, while avoiding their inherent shortcomings. It also represents a novel way of incorporating toughening rubber domains into a thermoplastic composite. The composites produced exhibit excellent mechanical integrity with essentially zero void content. The chemical and physical states of the composites produced by the process were probed in terms of mechanical relaxation behavior using a dynamic mechanical spectrometer. Due to the simultaneous occurrence of both polymerization and crystallization processes in the reacting system, the resulting material is in a thermodynamically nonequilibrium state. An annealing effect is shown to correspond structurally to an increase in matrix crystallinity and the degree of phase separation, Izod impact tests were used to compare Nylon-6 and rubber-toughened Nylon-6 RIM-pultruded composites. The potential of secondary processing was, demonstrated by compression molding of the RIM-pultruded composite rods.  相似文献   

15.
A network model is applied to describe the deformation behaviour of melt-spun Nylon-6 fibres obtained at different spinning and drawing conditions. The network draw ratio is determined from analysis of true stress-strain curves and correlated with fibre orientation. From this analysis it appears that the deformation behaviour of Nylon-6 fibres adheres to a pseudo-affine mechanism. The results are discussed in terms of the semicrystalline nature of Nylon-6 fibres. By means of on-line birefringence measurements, wide angle X-ray scattering (WAXS) and solid-state NMR, it is shown that the crystalline and amorphous phases in Nylon-6 respond in a different way to network deformation. In the spin line, an affine (rubber-like) deformation mechanism is observed and this rubber-like network behaviour is transferred to the amorphous phase. After winding and conditioning of the spun fibres, a crystalline phase with relatively high orientation is formed which deforms according to a pseudo-affine mechanism upon further stretching.  相似文献   

16.
Graft polymers of Nylon-6, 6 on cellulose acetate were obtained by successive alternate controlled addition of adipoyl chloride followed by 1,6-hexane diamine to the potassium alkoxide derivative of cellulose diacetate in tetrahydrofuran. The graft polymers were fractionated and isolated from homopolymer fractions. Their Nylon-6, 6 content increased upon increasing the monomer concentration.  相似文献   

17.
报道了以尼龙-6短纤维增强HDPE结构泡沫材料以及木粉填充HDPE结构泡沫材料的力学性能,探讨了粘合剂对尼龙-6短纤维和HDPE泡沫基材的粘合使用,并分析了不同加工助剂对木粉填充HDPE发泡体系加工性能和外观的影响。  相似文献   

18.
Polyamide (PA)-6 is an engineering thermoplastic. It finds its application in electrical, mechanical, and automotive parts due to its very high processing and excellent barrier properties to oils. Unfortunately, Nylon-6 (Ny6) is relatively high priced, has poor impact strength, particularly when notched, and poor dimensional stability as well as poor barrier properties to moisture, which limits its applicability. On the other hand, due to low cost, low coefficient of friction, lightweight, high strength, high barrier properties to moisture, good optical properties, and ease of processing, low density polyethylene (LDPE) is an ideal material to incorporate with Polyamide-6 for film, container, and many engineering applications. The present study deals with the preparation of Nylon-6 and modified LDPE (MLDPE) blends, varying the MLDPE concentration from 0 to 50 wt%. The objective of this study is to find the effect of maleic-anhydride grafted low-density polyethylaene on various mechanical properties such as tensile, impact, and flexural properties of Nylon-6. There is a decrease in tensile and flexural properties, the notched Izod impact strength increased greatly when the MLDPE content was 20%. It includes the study the effect of MLDPE on thermal properties and morphological properties of Nylon-6. The morphology of PA/MLDPE blends showed dispersed particle in the polymeric matrix.  相似文献   

19.
尼龙6自润滑材料的物理改性   总被引:5,自引:1,他引:4  
采用烧结成型方法,在较好烧结工艺条件下研究了尼龙6自润滑材料的物理、软科学性能与组成间的关系,并得到了最好的自润滑材料配方。  相似文献   

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