以环氧树脂(EP)为包裹材料、聚磷酸铵(APP)高效阻燃剂为芯材,制备了微胶囊化APP;然后将微胶囊化APP和氧化铝添加到EP基体中,制备了阻燃导热EP灌封胶。研究结果表明:当w(微胶囊化APP)=30%、w(氧化铝)=150%(均相对于EP总质量而言)时,阻燃...以环氧树脂(EP)为包裹材料、聚磷酸铵(APP)高效阻燃剂为芯材,制备了微胶囊化APP;然后将微胶囊化APP和氧化铝添加到EP基体中,制备了阻燃导热EP灌封胶。研究结果表明:当w(微胶囊化APP)=30%、w(氧化铝)=150%(均相对于EP总质量而言)时,阻燃导热EP灌封胶的综合性能相对最好,其黏度(为7 800 m Pa·s)适宜、热导率[为1.15 W/(m·K)]相对较大、阻燃等级(为V-0级)相对最好、残炭率(为60.97%)相对较大且炭层致密。展开更多
A hybrid membrane consisted of aminated graphene and Ag nanoparticles（Ag NPs） was prepared on the surface of glassy carbon electrode（GCE） by cyclic voltammetry（CV） with aminated graphene（GR-NH2） as matrix for ...A hybrid membrane consisted of aminated graphene and Ag nanoparticles（Ag NPs） was prepared on the surface of glassy carbon electrode（GCE） by cyclic voltammetry（CV） with aminated graphene（GR-NH2） as matrix for immobilizing Ag NPs.The morphology and electrochemical properties of this hybrid membrane were characterized by scanning electron microscopy（SEM） and CV,respectively,and on this membrane,the voltammetric behaviors of epinephrine（EP） were studied in detail.The membrane exhibited excellent eletro-catalytic activities for the redox of EP,and could resolve the electrochemical response of EP and uric acid（UA） into two oxidation peaks.The peak current of EP was linear with its concentration in the ranges of 0.916-18.3 μmol/L and 18.3-184 μmol/L.The detection limit was 2.0 nmol/L（S/N=3）.The proposed modified electrode retained the advantages of easy fabrication,high sensitivity and good repeatability for the determination of EP.展开更多
Guangdong Rongtai Industry Co., Ltd. (Guangdong Rongtai,SH: 600589) announces on December 28th, 2006 that its Boardof Directors have agreed to build environmental friendly highperformance epoxy molding compound for IC...Guangdong Rongtai Industry Co., Ltd. (Guangdong Rongtai,SH: 600589) announces on December 28th, 2006 that its Boardof Directors have agreed to build environmental friendly highperformance epoxy molding compound for IC (integratedcircuit) encapsulation project, with an investment of RMB108.85 million. The investment needed in this project is contrib-展开更多
文摘以环氧树脂(EP)为包裹材料、聚磷酸铵(APP)高效阻燃剂为芯材,制备了微胶囊化APP;然后将微胶囊化APP和氧化铝添加到EP基体中,制备了阻燃导热EP灌封胶。研究结果表明:当w(微胶囊化APP)=30%、w(氧化铝)=150%(均相对于EP总质量而言)时,阻燃导热EP灌封胶的综合性能相对最好,其黏度(为7 800 m Pa·s)适宜、热导率[为1.15 W/(m·K)]相对较大、阻燃等级(为V-0级)相对最好、残炭率(为60.97%)相对较大且炭层致密。
基金Supported by the National Natural Science Foundation of China（No.21105023） and the Natural Science Foundation of Shandong Province,China（Nos.BS2013HZ027,ZR2009BM003）.
文摘A hybrid membrane consisted of aminated graphene and Ag nanoparticles（Ag NPs） was prepared on the surface of glassy carbon electrode（GCE） by cyclic voltammetry（CV） with aminated graphene（GR-NH2） as matrix for immobilizing Ag NPs.The morphology and electrochemical properties of this hybrid membrane were characterized by scanning electron microscopy（SEM） and CV,respectively,and on this membrane,the voltammetric behaviors of epinephrine（EP） were studied in detail.The membrane exhibited excellent eletro-catalytic activities for the redox of EP,and could resolve the electrochemical response of EP and uric acid（UA） into two oxidation peaks.The peak current of EP was linear with its concentration in the ranges of 0.916-18.3 μmol/L and 18.3-184 μmol/L.The detection limit was 2.0 nmol/L（S/N=3）.The proposed modified electrode retained the advantages of easy fabrication,high sensitivity and good repeatability for the determination of EP.
文摘Guangdong Rongtai Industry Co., Ltd. (Guangdong Rongtai,SH: 600589) announces on December 28th, 2006 that its Boardof Directors have agreed to build environmental friendly highperformance epoxy molding compound for IC (integratedcircuit) encapsulation project, with an investment of RMB108.85 million. The investment needed in this project is contrib-
