pekk

High Performance Aviation and Spaceflight Material & PEKK

高性能航天航空材料&聚醚酮酮

The effects of precipitate method on the structure and aluminum content of PEKK

沉淀方法对聚醚酮酮的结构和铝含量的影响

The results show that S PEKK exhibited good catalytic activity and could be used repeatedly .

结果表明，SPEKK具有催化活性好、可循环使用等特点。

Study on the synthesis of PEKK in the presence of compound catalyst of Lewis acid-Lewis base

Lewis酸&Lewis碱复合催化剂催化合成聚醚酮酮的研究

Some major physical and chemical properties of PEKK have been determined . The intrinsic viscosity of PEKK has reached about 0.8 - 1.0 .

测试了PEKK的主要物理和化学性能，其中PEKK的特性粘度可达0.8～1.0，达到了工程材料的要求。

The copolymers are crystalline polymers similar to PEKK and the T g of the copolymer is higher than that of pure PEKK .

共聚物是半结晶性聚合物，具有比聚醚酮酮（PEKK）更高的玻璃化转变温度（Tg）；

The sulfonated poly aryl ether ketone ketone ( S PEKK ) with various sulfonation degree was prepared by reaction of PEKK with sulfuric acid as sulfonating agent and solvent .

以硫酸为磺化剂，将聚芳醚酮酮进行磺化制得了磺化聚芳醚酮酮（SPEKK）。

But the 5 % weight loss temperature ( T_d ) of the copolymer was little lower than that of commercialized PEEK and PEKK . The copolymers were soluble in CHCl_3 and strong ;

共聚物的几高于己商品化的PEEK和PEKK，5%热失重温度（Ta）则稍低于PEEK和PEKK。