多孔塑料的制备及多孔自润滑新材料的研究进展

介绍了多孔塑料的制备方法,综述了多孔聚酰亚胺(PI)、超高分子量聚乙烯(UHMWPE)和聚醚醚酮(PEEK)等几种新型自润滑塑料的研究进展并,提出了今后多孔自润滑塑料研究中值得注意的几个问题。     

小分子表面活化改性PEEK骨植入物的研究进展

介绍了常见小分子,如酸类、胺类等改性聚醚醚酮(PEEK)材料用于骨植入物的研究。综述了近年利用小分子通过化学改性及复合改性的方式改善PEEK表面惰性的方法及用于骨修复材料的改性效果。最后对小分子改性PEEK需要注意的工艺问题及其临床应用提出展望。     

高性能聚芳醚酮的发展及应用

综述了聚醚酮、聚醚醚酮、聚醚醚酮酮、聚醚酮酮、聚醚酮醚酮酮等5类高性能聚芳醚酮的性能、合成方法及其改性研究进展等,并介绍了聚芳醚酮的应用情况,指出聚芳醚酮的发展趋势是通过开发新的合成技术或者改性途径,在不影响其主要性能的前提下降低生产成本.     

骨科植入聚醚醚酮材料的表面改性及生物相容性研究

聚醚醚酮是一种具有优良的生物安全性、生物相容性,在骨科和脊柱外科及整形外科应用中很受欢迎的新型材料,因为其具有出色的物理和化学特性,且不可被射线穿透。但是其生物活性较差,目前,表面改性方法可以有效提高聚醚醚酮的生物活性,使其更易于骨组织键合,已成为骨科植入材料研究的热点。文章介绍了物理法、化学法以及辐射改性法3种不同类别的改性技术,并分析了不同改性技术的优劣及对于提高生物相容性的帮助,最后展望了聚醚醚酮材料表面改性的发展前景。     

耐高温热塑性树脂的研究进展

综述了国内外高性能热塑性材料的发展概况和趋势;介绍了一些常见的耐高温热塑性聚合物的性能、复合改性和应用,包括聚苯硫醚、聚醚醚酮、聚酰亚胺、聚砜等,并对国内未来耐高温热塑性树脂的研究方向提出了建议。     

高性能工程塑料聚醚醚酮的开发研究

对高性能工程塑料聚醚醚酮的一般性质及应用领域,特别是其在机械工业行业中的应用进行了介绍,并针对其在实际应用中存在的一些局限,从两方面介绍了聚醚醚酮的化学改性方法和物理改性方法,改性之后的聚醚醚酮不仅成型加工性能和使用性能都有所提高,还可降低成本,有利于其得到更广泛的应用。     

3D打印高分子材料研究进展

主要介绍了聚乳酸(PLA),聚己内酯(PCL),聚醚醚酮(PEEK),聚碳酸酯(PC)和丙烯腈-丁二烯-苯乙烯塑料(ABS)等在3D打印技术中的应用,并且综述了这些材料相应的改性方法以及改性材料的应用性能。通过对已有3D打印材料的改性和扩充,3D打印产品将可以广泛应用到医疗、生物组织工程、工业、军事、航空航天等领域,3D打印技术也将成为一种主流的塑料加工技术。     

聚醚醚酮单螺杆挤出机的设计

针对聚醚醚酮材料的工艺特点,本文重点介绍了聚醚醚酮单螺杆挤出机的结构设计,该挤出机在聚醚醚酮生产中应用情况良好,具有广阔的市场前景。     

陶瓷及其复合材料高温自润滑的研究现状

本文就固态润滑组元性质、与陶瓷基体界面特性以及摩擦化学反应膜层等几方面因素对陶瓷自润滑效应的影响,简要介绍了当前自润滑金属陶瓷材料、自润滑陶瓷复合材料和结构陶瓷自身润滑功效的一些研究情况。总结了自润滑陶瓷材料研究中存在的不足,并提出了今后研究应注意的问题。     

聚醚醚酮复合材料研发取得阶段性突破

正随着工业产业轻量化的发展,越来越多的工程塑料以其质轻、耐磨等优点被广泛应用到汽车、飞机、高铁等领域。聚醚醚酮作为特种工程塑料,具有优良的综合性能,在许多特殊领域可以替代金属、陶瓷等传统材料。该塑料以其耐高温、自润滑、耐磨损     

聚醚醚酮复合材料的改性研究及应用进展

分别从化学改性、填充改性及纤维增强、混合型改性及表面改性等方面综述了聚醚醚酮(PEEK)及其复合材料的改性方法,尤其是对摩擦学性能的改性方法,阐述了PEEK复合材料在各个领域的应用情况,指出了PEEK复合材料摩擦学改性研究的未来发展方向。     

硬组织植入聚醚醚酮表面生物活性改性研究

介绍了有望替代传统医用金属材料用作硬组织植入体的特种工程塑料聚醚醚酮（PEEK）的一些优异特性及其不足。首先,综述了在PEEK表面构筑羟基磷灰石、钛或二氧化钛等改性涂层对体外及体内生物活性的影响,并重点强调了改性涂层与基底结合力的重要性。其次,综述了直接表面改性手段,如等离子体浸没离子注入、激光处理、湿法改性等在PEEK表面构筑有利的表面物理及化学性质,赋予其表面生物活性的研究进展。最后,对构筑兼具生物活性和抗菌活性的PEEK表面进行总结,并对其发展方向进行了展望。     

聚酰亚胺共混和复合改性的研究进展

综述了聚酰亚胺(PI)与其它高聚物的共混以及与无机物的复合改性研究进展,着重介绍了PI与环氧树脂、聚氨酯、聚四氟乙烯和聚醚醚酮的共混,以及PI与碳纤维、玻璃纤维、石墨、玻璃微珠、凹凸棒土、无机纳米粒子的复合改性的研究情况,并展望了PI共混和复合材料的应用前景和发展趋势.     

聚醚醚酮树脂的改性及应用进展

论述了光稳定剂在PVC中的应用情况。重点介绍了受阻胺类光稳定剂和紫外线吸收剂在聚氯乙烯光降解中的作用和最新应用进展。     

碳纤维增强聚醚醚酮的非等温结晶行为与力学性能

利用聚酰亚胺(PI)作为碳纤维(CF)界面改性剂,制备了界面改性碳纤维增强聚醚醚酮(MCF/PEEK)复合材料。采用差示扫描量热仪(DSC)讨论了CF及其界面改性对PEEK非等温结晶行为的影响机制与作用规律,并基于莫志深法研究了MCF/PEEK的非等温结晶动力学;借助DSC和小角X射线散射仪(SAXS)表征不同降温速率下PEEK基体的结晶结构,采用万能试验机评价了MCF/PEEK的力学性能。结果发现:CF对PEEK的结晶有较为明显的异相成核促进作用,经过PI界面改性之后成核作用有所下降,但结晶行为仍较纯PEEK更容易发生,整体结晶速率更快;随冷却速率的增大,基体结晶度、片晶厚度与长周期均减小,MCF/PEEK的拉伸强度与模量也显著减小,层间断裂韧性提高。     

Surface modification of poly(aryl ether ether ketone) film by remote oxygen plasma

Surface modification of poly(aryl ether ether ketone) (PEEK) film surfaces by oxygen plasma treatment was investigated. Two procedures, the direct plasma treatment and the remote oxygen plasma treatment, were used as oxygen plasma treatments, and the efficiency of the hydrophilic modification was discussed. The direct and remote oxygen plasma treatments lead to degradation of the PEEK film as well as hydrophilic surface modification. The degradation disturbs the surface modification. The remote oxygen plasma treatment rather than the direct oxygen plasma is suitable for the hydrophilic surface modification of the PEEK film. The remote oxygen plasma treatment at 10 W for 60 s forms predominantly C—O groups rather than C=O groups as an oxygen-containing group on the PEEK surface and gives a highly hydrophilic surface with a contact angle of 44 degrees. © 1998 John Wiley & Sons, Inc. J Appl Polm Sci 68:271–279, 1998     

Effect of Extreme Ultraviolet (EUV) Radiation and EUV Induced,N2 and O2 Based Plasmas on a PEEK Surface’s Physico-Chemical Properties and MG63 Cell Adhesion

Polyetheretherketone (PEEK), due to its excellent mechanical and physico-chemical parameters, is an attractive substitute for hard tissues in orthopedic applications. However, PEEK is hydrophobic and lacks surface-active functional groups promoting cell adhesion. Therefore, the PEEK surface must be modified in order to improve its cytocompatibility. In this work, extreme ultraviolet (EUV) radiation and two low-temperature, EUV induced, oxygen and nitrogen plasmas were used for surface modification of polyetheretherketone. Polymer samples were irradiated with 100, 150, and 200 pulses at a 10 Hz repetition rate. The physical and chemical properties of EUV and plasma modified PEEK surfaces, such as changes of the surface topography, chemical composition, and wettability, were examined using atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and goniometry. The human osteoblast-like MG63 cells were used for the analysis of cell viability and cell adhesion on all modified PEEK surfaces. EUV radiation and two types of plasma treatment led to significant changes in surface topography of PEEK, increasing surface roughness and formation of conical structures. Additionally, significant changes in the chemical composition were found and were manifested with the appearance of new functional groups, incorporation of nitrogen atoms up to ~12.3 at.% (when modified in the presence of nitrogen), and doubling the oxygen content up to ~25.7 at.% (when modified in the presence of oxygen), compared to non-modified PEEK. All chemically and physically changed surfaces demonstrated cyto-compatible and non-cytotoxic properties, an enhancement of MG63 cell adhesion was also observed.     

聚醚醚酮及其复合材料的特性与应用研究进展

介绍聚醚醚酮（PEEK）的发展概况，综述PEEK及其复合材料的物理力学性能、改性技术和成型工艺，着重评述PEEK的摩擦学特性及其耐磨机理，展望PEEK及其复合材料在机械、石油、化工等领域的应用前景。     

Surface modification of PEEK by UV irradiation for direct co-curing with carbon fibre reinforced epoxy prepregs

Adding a layer of thermoplastic resin on the surface of thermoset composites enables welding as a possible joining method for thermoset composites. Adhesion at the thermoset/thermoplastic interface was achieved by direct co-curing of an UV irradiation treated PEEK film with aerospace grade carbon/epoxy prepregs. The effectiveness of UV irradiation for surface modification of PEEK was characterized using Fourier-Transformed InfraRed (FTIR) spectroscopy and contact angle measurement. The adhesion quality at the thermoset/thermoplastic interface was evaluated using a double cantilever beam test and Atomic Force Microscopy (AFM). UV treatment was found to effectively modify the chemical structure of PEEK surface and improve the wettability, which enables the development of a thermoset/thermoplastic interface by direct co-curing.