摘要
采用熔融预聚法制备N,N'-4,4'-二苯甲烷双马来酰亚胺(BMI)/二烯丙基双酚A(DBA)/聚醚砜(PES)/聚醚酮(PEK)(简称B/D/P/P)改性树脂体系。研究了改性树脂的固化反应性、力学性能及热稳定性。并对不同配比PES/PEK增韧后树脂体系的性能进行比较。结果表明,PEK/PES的加入能明显提高树脂的韧性和强度。在合适的配比下,5wt%PEK/PES的加入就可使改性体系较纯的基体树脂体系冲击强度增加68.5%,弯曲强度增加50.8%。另外,改性树脂体系的热稳定性也较纯的体系以及单一热塑性塑料改性体系有所提高。PES/PEK同时加入效果比PES和PEK单个加入的改性效果明显。
The introduction of the full papar reviews some relevant matters and then proposes the modification mentioned in the tide, which we believe improves bismaleimide resin and which is explained in section 1. Its core consists of： ＂The modified resin system of N, N＇-4,4＇-diphenylmethanebismaleimide （ BMI ）/o, o＇-diallylbisphenol （DBA）/Polyether sulphone （PES）/Polyether ketone （PEK） was prepared by melting prepolymerization. The curing reactive, mechanical properties and thermal stability were also investigated. The performances of the PES/PEK toughening resin system under different proportions were contrasted. ＂ The results, presented in Figs. 1 through 4 and Tables 1 and 2, and their analysis show preliminarily that both the toughness and the strength of the resin could obviously increase by adding PEK/PES. The 5% PEK/PES addition could make the modified resin system＇s impact strength increase by 68.5% and its bending strength increased by 50.8%. In addition, the thermal stability of the modified resin system improves more than either that of the pure system or that of a single thermoplastically modified system. The effect of modification with PES/PEK was more effective than either with PES or PEK individually.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2012年第1期149-153,共5页
Journal of Northwestern Polytechnical University
基金
陕西省国际科技合作项目(2011KW-12)资助
关键词
双马来酰亚胺
聚醚砜
聚醚酮
改性
analysis, characterization, curing, differentical scanning calorimetry, experiments, improvement, mechanical properties, modification, morphology, resins, scanning electron microscopy, spectrum analysis, stability, strenth of materials, thermogravimetric analysis, toughness
bismaleimide, polyetherketone, polyethersulfone
