Since the establishment of its first laminates plant in 1988 , the group has been growing in scale and expanding through vertical integration to become a widely recognized industry leader in laminates and printed circuit boards , with upstream capabilities in copper foil , bleached kraft paper , glass yarn , glass fabric , formalin , hydrogen peroxide , epoxy resin and tbba 集团自一九八八年成立首家覆铜面板厂以来,一直不断扩展生产规模,并锐意深化垂直整合,除了在覆铜面板及印刷线路板行业建立了领导地位,更具备自行生产铜箔漂白木桨纸玻璃丝玻璃纤维布甲醛双氧水环氧树脂及四溴双酚a等上游原料的生产设施。
As the content of vermiculite minerals was about 3 % , the impact strength ( nick ) , the flexural strength and the heat distortion temperature ( hdt ) of the nanocomposites all were the lowest and decreased 21 % , 28 % , 3c , respectively . compared with those of the polybenzoxazine ( bisphenol a type ) , its thermal expanded coefficient ( tec ) was 3 . 4 % bigger than that of the polybenzoxazine ( bisphenol a type ) 双酚a型ben蛭石纳米复合材料的力学性能和热性能表现出明显的结构特征,普遍地低于纯树脂的性能数值,而优于双酚a型ben金云母复合约zi和zs “热变形温度dt )低约3 ,线膨胀系数高约3
Since the establishment of its first laminates plant in 1988 , the group has been growing in scale and expanding through vertical integration to become a widely recognized industry leader in laminates and printed circuit boards , with upstream capabilities in copper foil , bleached kraft paper , glass yarn , glass fabric , formalin , methanol , hydrogen peroxide , epoxy resin and tbba 集团自一九八八年成立首家覆铜面板厂以来,一直不断扩展生产规模,并锐意深化垂直整合,除了在覆铜面板及印刷线路板行业建立了领导地位,更具备自行生产铜箔漂白木桨纸玻璃丝玻璃纤维布甲醛甲醇双氧水环氧树脂及四溴双酚a等上游原料的生产设施。
Since the establishment of its first laminates plant in 1988 , the group has been growing in scale and expanding through vertical integration to become a widely recognized industry leader in laminates and printed circuit boards , with upstream capabilities in copper foil , bleached kraft paper , glass yarn , glass fabric , formalin , hydrogen peroxide , epoxy resin and tbba . the group s core manufacturing capability comprises an integrated network of more than 40 plants in china 集团自一九八八年成立首家覆铜面板厂以来,一直不断扩展生产规模,并锐意深化垂直整合,除了在覆铜面板及印刷线路板行业建立了领导地位,更具备自行生产铜箔漂白木桨纸玻璃丝玻璃纤维布甲醛双氧水环氧树脂及四溴双酚a等上游原料的生产设施。
The followings are carried out for ballistic composite with resin matrix to realize its double function of loading and bulletproof and meet various tactics technology demands in the paper 1 . the resin and reinforcement for arms ballistic system are selected and ballistic properties for composites with different resin matrixs ( improved phenolic , polyethylene , rubber , bi - phenol - a , and biamaleimide ) and different fibers ( kevlar , glass , carbon and uhmwpe fiber ) are investigated , with the aim of maxwell model to explain the matrix match principle for ballistic composites 1 、本论文从材料选择入手,进行了复合装甲防弹体系用树脂、增强材料进行了选择和研究,考核了不同树脂类型(改性酚醛、聚乙烯、橡胶、双酚a环氧和双马来酰亚胺体系) 、不同纤维( kevlar纤维、玻璃纤维、碳纤维、高强聚乙烯纤维)复合材料的防弹性能,并引入maxwell模型较好地解释防弹复合材料的基体匹配原理。