联苯聚芳醚砜醚酮酮及其碳纤维复合材料的制备
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摘要
以4,4'-二苯氧基二苯砜(DPODPS)和4,4'-联苯二甲酰氯(BPPC)为原料,采用亲电缩合反应制备了主链含联苯结构单元的聚芳醚砜醚酮酮(PESEKDK),并用红外(FT-IR)、广角X-射线衍射(WAXD)、示差扫描量热法(DSC)、热重法(TGA)等手段对其进行了表征.结果表明:PESEKDK的玻璃化转变温度(Tg)为207℃,在238℃、264℃、283℃处出现3个熔融峰;热分解温度(Td)为561℃,说明聚合物的耐热性能优良.以质量比为50%的T700短碳纤维和PESEKDK熔融共混制备的复合材料的拉伸强度为286 MPa,拉伸模量为30.9 GPa,表明复合材料具有优良的力学性能.
Biphenyl-containing poly(aryl ether sulfone ether ketone ketone) is synthesized via electrophilic FriedelCrafts solution copolycondensation of 4,4'-Biphenyldicarboxylic dichloride(BPPC) with 4,4'-diphenoxy diphenyl sulfone(DPODPS). The obtained playmer is characterized by FT-IR,WAXD,DSC,TGA different techniques. The thermal stability of the polymer is excellent,the glass transition temperatures(Tg) is 207 ℃,melting temperatures are 238 ℃,264 ℃,283 ℃,and the thermal decomposition temperature is 561 ℃. The mechanical properties of composites from fifty percent short carbon fibers(T700) and fifty percent Biphenyl-containing poly(aryl ether sulfone ether ketone ketone)(PESEKDK) show a great mechanical performance,and tensile strength is 286 MPa,tensile modulus is 30. 9 GPa.
Biphenyl-containing poly(aryl ether sulfone ether ketone ketone) is synthesized via electrophilic FriedelCrafts solution copolycondensation of 4,4'-Biphenyldicarboxylic dichloride(BPPC) with 4,4'-diphenoxy diphenyl sulfone(DPODPS). The obtained playmer is characterized by FT-IR,WAXD,DSC,TGA different techniques. The thermal stability of the polymer is excellent,the glass transition temperatures(Tg) is 207 ℃,melting temperatures are 238 ℃,264 ℃,283 ℃,and the thermal decomposition temperature is 561 ℃. The mechanical properties of composites from fifty percent short carbon fibers(T700) and fifty percent Biphenyl-containing poly(aryl ether sulfone ether ketone ketone)(PESEKDK) show a great mechanical performance,and tensile strength is 286 MPa,tensile modulus is 30. 9 GPa.
引文
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[2]Brendan R M,Adrian D,Feerick P J,et al.Rotational moulding of PEEK polymer liners with carbon fibre/PEEK over tape-placement for space cryogenic fuel tanks[J].Materials&Design,2017,132:567-581.
[3]Zhao Xiaoduo,Xiong Dangsheng,Wu Xinxin.Effects of surface oxidation treatment of carbon fibers on biotribological properties of CF/peek materials[J].Journal of Bionic Engineering,2017,14(4):640-647.
[4]Garcia-Gonzalez D,Rodriguez-Millan M,Rusinek A,et al.Investigation of mechanical impact behavior of short carbon-fiber-reinforced PEEK composites[J].Composite Structures,2015,133:1116-1126.
[5]Dworak M,Rudawski A,Markowski J,et al.Dynamic mechanical properties of carbon fibre-reinforced PEEK composites in simulated body-fluid[J].Composite Structures,2017,161:428-434.
[6]Regis M,Bellare A,Pascolini T,et al.Characterization of thermally annealed PEEK and CFR-PEEK composites:structure-properties relationships[J].Polymer Degradation and Stability,2017,136:121-130.
[7]庞金辉,张海博,姜振华.聚芳醚酮树脂的分子设计与合成及性能[J].高分子学报,2013(6):705-721.
[8]饶先花,曹民,代惊奇,等.国内外特种工程塑料聚芳醚酮的生产、应用及发展前景[J].塑料工业,2012(9):18-22.
[9]魏红,张海博,姜振华.侧链含萘可交联聚芳醚酮的合成及性能[J].高等学校化学学报,2012(11):2563-2566.
[10]Patel P,Hull T R,Mccabe R W,et al.Mechanism of thermal decomposition of PEEK from a review of decomposition studies[J].Polymer Degradation and Stability,2010,95:709-718.
[11]王利云,洪慧铭,宋琤,等.苯型聚芳醚砜醚酮酮共聚物的合成与表征[J].江西师范大学学报:自然科学版,2017,41(5):488-491.
[12]邱兆斌,陈庆勇,盛寿日,等.新型间位聚醚酮醚酮酮的合成与结晶[J].高分子学报,2000,16(4):109-110.
[13]邱兆斌,王继库,盛寿日,等.一种新型间位聚芳醚酮的晶体结构[J].高等学校化学学报,2000,12:1448-1449.
[14]Wen Hongli,Song Caisheng,Tong Y F,et al.Synthesis and properties of poly(aryl ether sulfone etherketone ketone)(PESEKK)[J].Journal of Applied Polymer Science,2005,96:489-492.
[15]温红丽,祝志芳,宋琤,等.聚芳醚砜醚酮酮及其碳纤维复合材料力学性能研究[J].高分子材料科学与工程,2011,8:99-102.