超高分子量聚乙烯纤维/有机玻璃复合材料摩擦磨损性能研究

用真空浸渍法成功制备出了超高分子量聚乙烯纤维／有机玻璃(UHMWPE／PMMA)复合材料，并对基体材料PMMA，单向超高分子量聚乙烯纤雏／有机玻璃复合材料以及三维编织超高分子量聚乙烯纤维／有机玻璃(即UHMWPE3D／PMMA)复合材料的摩擦磨损性能进行了研究。实验证明UHMWPE／PMMA复合材料具有优良的摩擦磨损性能。经过纤维增强的复合材料的摩擦磨损性能优于基体材料，三维编织纤维增强的复合材料其磨损远小于单向纤维增强的复合材料，但其摩擦系数没有显著变化。     

超高分子量聚乙烯纤维复合材料的研究进展

概述超高分子量聚乙烯（UHMWPE）纤维增强复合材料的研究进展,详细介绍了UHMWPE纤维的各种优良特性和UHMWPE纤维增强复合材料用基体树脂,以及UHMWPE纤维增强复合材料的制备方法与工艺,对UHMWPE增强复合材料的应用及其应用领域进行了汇总。     

聚乙烯纤维增强有机玻璃复合材料性能影响因素的研究

通过真空浸渍法，成功制备出聚乙烯纤维增强有机玻璃（UHMWPE/PMMA）复合材料，就纤维含量以及孔隙率等对材料性能的影响进行了初步研究，重点探讨了孔隙率对复合材料的影响。     

超高强高模聚乙烯纤维及其复合材料的研究进展

简述了超高强高模聚乙烯(UHMWPE)纤维的性能、种类及利用凝胶纺丝技术的制备情况。综述 了对该类纤维及其复合材料界面改性的等离子处理法,以及UHMWPE纤维复合材料在防弹防护、绳索类、 雷达天线罩等领域的研究及应用进展。     

UHMWPE纤维表面改性技术的研究进展

超高相对分子质量聚乙烯（UHMWPE）纤维以其优异的性能而成为一种重要的高科技纤维品种，但由于本身的结构特点，导致纤维与基体之间的界面粘接性能较差而限制了其应用。通过液相氧化法、等离子体处理法等各种方法对UHMWPE纤维表面进行处理，可不同程度改善其界面粘结性能。本文详细介绍了UHMWPE纤维的表面改性方法及其进展。     

LDPE/不锈钢纤维电磁屏蔽材料的性能研究

以不锈钢纤维作为导电填料，添加到低密度聚乙烯（LDPE）中，制备了一种电磁屏蔽材料。分析了不锈钢纤维的加入对复合材料电磁性能、导电性能和力学性能的影响。结果表明，LDPE/不锈钢纤维复合材料的电磁屏蔽效能与不锈钢纤维的长径比成正比，添加了长径比大的不锈钢纤维的LDPE的导电性能更佳。随着不锈钢纤维用量的增加，LDPE／不锈钢纤维复合材料的拉伸强度和断裂伸长率都有较大幅度的下降。     

超高分子量聚乙烯纤维的表面处理及其复合材料的性能

超高分子量聚乙烯纤维（UHMWPE）具有优良的力学性能，但其表面具有惰性和光滑性；利用酸腐蚀、紫外接枝等方法对UHMWPE纤维进行表面改性处理；处理后进行单丝拔出试验，其拔出载荷可提高许多；以环氧树脂为基体采用模压成型工艺制备复合材料板材，不同表面处理的纤维增强环氧树脂复合材料的弯曲强度测试值相差较大，分析了材料弯曲强度变化的原因。     

超高分子量聚乙烯纤维的表面处理

综述了超高分子量聚乙烯（UHMWPE）纤维复合材料界面的重要性,总结了表面改性方法对UHMWPE纤维以及UHMWPE／树脂界面的影响。     

超高相对分子质量聚乙烯纤维树脂基复合材料性能研究

风电行业进入平价上网时代，风电叶片需要一种介于玻璃纤维和碳纤维之间性价比高的新型纤维。超高相对分子质量聚乙烯（UHMWPE）纤维具有比强度高和比模量高的优势，相同性能下其价格为碳纤维的30%，因此超高相对分子质量聚乙烯纤维具有极大的性价比优势。对超高相对分子质量聚乙烯纤维的拉伸性能、疲劳性能、纤维与树脂的结合能力和抗蠕变能力进行了系统的研究，研究结果表明，超高相对分子质量聚乙烯纤维浸胶纱拉伸模量100 GPa，上浆剂0.5%的含量性能最佳。并对超高相对分子质量聚乙烯纤维基复合材料在抗蠕变型、高表面粘合型方面提出了改进方向。     

超高分子量聚乙烯纤维增强复合材料及其防弹性能的研究进展

介绍了近年来 ,超高分子量聚乙烯纤维增强复合材料的树脂基体及其加工工艺的研究进展以及纤维与基体的粘结性能和复合材料的力学性能 ;分析了该复合材料的准静态力学行为和防弹性能。     

Experimental and simulated investigation of temperature distribution of UHMWPE laminated composites during hot pressing process

In this article, the influence of molding temperature on the mechanical properties and ballistic impact behavior of the ultrahigh molecular weight polyethylene (UHMWPE) laminated composites has been investigated. The results demonstrate that with the temperature increasing from 80 to 120 °C, the tensile strength decreases while the interlaminar bonding strength increases. The UHMWPE laminated composites manufactured by hot pressing of 75 layers UHMWPE fabrics show excellent ballistic performance when the molding temperature reaches 120 °C, indicating that dominant failure mechanism of the UHMWPE laminated composites are delamination, the fiber tension as well as bulging. Furthermore, a numerical model has been proposed to predict the temperature distribution of the UHMWPE laminated composites for a better understanding of the effect of molding temperature on the ballistic performance. The results show that the simulated results and experimental data are in good agreement. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 45874.     

Preparation and crystallization behavior of UHMWPE/LLDPE composites

UHMWPE fiber reinforced LLDPE composites were prepared to develop the impact resistant materials. The crystallization kinetics of LLDPE with UHMWPE fiber was investigated to understand the interfacial adhesion and composite performance. The crystallization behavior of LLDPE depends on the crystallization temperature and existence of UHMWPE fiber. LLDPE matrix crystallization was affected by the inclusion of UHMWPE fiber via preceded transcrystallization on the fiber surface. The interfacial adhesion of composites was changed by cooling rate control with different crystallization behavior. Received: 29 August 1997/Revised version: 7 November 1997/Accepted: 13 November 1997     

Interfacial adhesion study on UHMWPE fiber-reinforced composites

Ultrahigh molecular weight polyethylene (UHMWPE) fiber has many outstanding properties. However, poor interfacial adhesion of the UHMWPE fiber/polymer matrix interface limits its applications as reinforcement in high performance polymer matrix composites. Therefore, a new thermosetting resin system, named PCH, which is only composed of carbon and hydrogen elements, has been developed according to law of similar mutual solubility and the structural characteristics of UHMWPE fiber. The adhesion property was investigated by mechanical properties test, thermal performance test, and polymer solution properties test. Test results show that a strong interaction occurs between UHMWPE fiber and the PCH matrix due to the structural and polar similarity. In the case of slight difference between solubility parameters of UHMWPE fiber and cured PCH resin, it is found that the wettability of PCH resin on surface of the fiber can be improved and the difference between the coefficients of thermal expansion of the matrix and the fiber decreases with the increase of styrene added into the PCH. An optimal interfacial adhesion can be obtained as the ratio of PCH/styrene is approximately 55/45.     

UHMWPE纤维复合材料防弹机理和性能

以立方体弹片作为冲击体,对UHMWPE纤维复合材料进行了大量的弹道冲击实验;基于实验结果和冲击波理论,研究了UHMWPE纤维复合材料受冲击时的表观破坏形态和微观损伤机理以及靶板面密度、冲击速度、冲击方式等因素对材料防弹性能的影响规律。     

超高分子量聚乙烯纤维在防弹材料上的应用

研究了基体树脂的模量、含量、纤维织物结构，复合材料面密度等因素对ＵＨＭＷＰＥ纤维复合材料弹道性能的影响，并对复合材料在弹道冲击下的破坏现象及机理进行了解释。     

Effects of carbon nanofibers on crystalline structures and properties of ultrahigh molecular weight polyethylene blend fabricated using twin‐screw extrusion

Melt mixing in an extruder with polymers is an effective approach for forming nanocomposites, allowing mass production applications. The intent of this study is to investigate carbon nanofiber composites with ultrahigh molecular weight polyethylene (UHMWPE) matrix using the twin‐screw extruder. To decrease the high viscosity of UHMWPE, a low density polyethylene (LDPE) was added into the UHMWPE. The effects of carbon nanofibers (CNFs) on the crystalline structures and properties of the nanocomposites were analyzed. The differential scanning calorimetry (DSC) and X‐ray diffraction (XRD) measurements showed the addition of CNFs decreases the degree of crystallinity, but does not impart significant effects on the crystalline structure of the UHMWPE/LDPE blend. Tensile test results showed that the nanocomposite with loading of 3 wt % CNFs had an increase of 38% in tensile strength and 15% in modulus. The thermal stability and thermal conductivity of UHMWPE/LDPE blends were also enhanced by the addition of CNFs. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

弹击对环氧树脂/芳纶复合材料结构性能的影响

采用层压工艺制备了环氧树脂/芳纶纤维复合材料板,对复合材料板用12.7 mm弹道枪1.1 g碎片模拟弹进行抗弹测试。在弹击的相邻区域取样,测试弹击点附近材料拉伸性能和弯曲性能的变化,研究弹击对复合材料结构性能的影响。结果表明,弹击对环氧树脂/芳纶纤维复合材料的拉伸和弯曲性能有不同程度的影响,相对于拉伸性能,弯曲性能的下降幅度更大。相对于离弹击区域最远的部位,材料离弹击区域最近的部位拉伸强度和拉伸弹性模量分别降低了14.6%和6.4%,弯曲强度和弯曲弹性模量分别降低了45.3%和57.3%。距离弹击点30~60 mm外的区域,材料结构性能基本不受影响。     

An investigation for the effect of recycled matrix on the properties of textile waste cotton fiber reinforced (T‐FRP) composites

The main objective of this research is to study the effect of recycled low density polyethylene (r‐LDPE) matrix on the tensile, impact, and flexural properties of the novel textile waste cotton fiber reinforced (T‐FRP) composites. For this purpose, the T‐FRP composites were manufactured by using two different matrix types; namely, virgin LPDE (v‐LDPE) and r‐LDPE, with different waste cotton fiber content. All composites were compatibilized by maleic anhydride‐LDPE (MA‐LDPE) in order to increase the interfacial adhesion between fibers and matrices. Differential scanning calorimetry, Fourier transform infrared spectroscopy, scanning electron microscopy, dynamic mechanical analyzer studies were performed in order to characterize the materials. The results have shown that best tensile and flexural properties have been obtained from the composites with the content of 30 wt% cotton fiber, 5 wt% maleic anhydride‐LDPE, and 65 wt% recycled LDPE matrix. However, the impact properties of the composites were decreased drastically compared to the pure LDPE matrix. POLYM. COMPOS., 38:1231–1240, 2017. © 2015 Society of Plastics Engineers     

Mechanical properties of surface‐modified ultra‐high molecular weight polyethylene fiber reinforced natural rubber composites

The mechanical properties of ultra‐high molecular weight polyethylene (UHMWPE) fibers reinforced natural rubber (NR) composites were determined, and the effects of fiber surface treatment and fiber mass fraction on the mechanical properties of the composites were investigated. Chromic acid was used to modify the UHMWPE fibers, and the results showed that the surface roughness and the oxygen‐containing groups on the surface of the fibers could be effectively increased. The NR matrix composites were prepared with as‐received and chromic acid treated UHMWPE fibers added 0–6 wt%. The treated UHMWPE fibers increased the elongation at break, tear strength, and hardness of the NR composites, especially the tensile stress at a given elongation, but reduced the tensile strength. The elongation at break increased markedly with increasing fiber mass fraction, attained maximum values at 3.0 wt%, and then decreased. The tear strength and hardness exhibited continuous increase with increasing the fiber content. Several microfibrillations between the fiber and NR matrix were observed from SEM images of the fractured surfaces of the treated UHMWPE fibers/NR composites, which meant that the interfacial adhesion strength was improved. POLYM. COMPOS., 38:1215–1220, 2017. © 2015 Society of Plastics Engineers