工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2014年
3期
30-33
,共4页
付华%汪艳%陈友斌%武海燕
付華%汪豔%陳友斌%武海燕
부화%왕염%진우빈%무해연
羟基磷灰石%聚醚醚酮%磺化聚醚醚酮%选择性激光烧结%纳米复合材料
羥基燐灰石%聚醚醚酮%磺化聚醚醚酮%選擇性激光燒結%納米複閤材料
간기린회석%취미미동%광화취미미동%선택성격광소결%납미복합재료
hydroxyapatite%polyetheretherketone%sulfonated polyetheretherketone%selective laser sintering%nanocomposite
以磷酸氢二铵、四水硝酸钙为反应物,聚乙二醇-2000为表面活性剂,采用化学沉淀法制备羟基磷灰石(HA),以浓H2SO4为磺化剂制备了磺化聚醚醚酮(SPEEK),利用SPEEK对纳米HA进行表面改性,通过溶液共混法制备了聚醚醚酮(PEEK)/HA纳米复合粉末。采用X射线衍射、扫描电子显微镜、傅立叶变换红外光谱仪、热失重分析、差示扫描量热法对产物的结构、形貌和热性能进行分析。结果表明,制备出的HA呈球状,大小均一,平均粒径为98 nm。以SPEEK为相容剂通过溶液共混法制备的PEEK/HA复合粉末分散性能和热稳定性良好,可用于选择性激光烧结工艺。
以燐痠氫二銨、四水硝痠鈣為反應物,聚乙二醇-2000為錶麵活性劑,採用化學沉澱法製備羥基燐灰石(HA),以濃H2SO4為磺化劑製備瞭磺化聚醚醚酮(SPEEK),利用SPEEK對納米HA進行錶麵改性,通過溶液共混法製備瞭聚醚醚酮(PEEK)/HA納米複閤粉末。採用X射線衍射、掃描電子顯微鏡、傅立葉變換紅外光譜儀、熱失重分析、差示掃描量熱法對產物的結構、形貌和熱性能進行分析。結果錶明,製備齣的HA呈毬狀,大小均一,平均粒徑為98 nm。以SPEEK為相容劑通過溶液共混法製備的PEEK/HA複閤粉末分散性能和熱穩定性良好,可用于選擇性激光燒結工藝。
이린산경이안、사수초산개위반응물,취을이순-2000위표면활성제,채용화학침정법제비간기린회석(HA),이농H2SO4위광화제제비료광화취미미동(SPEEK),이용SPEEK대납미HA진행표면개성,통과용액공혼법제비료취미미동(PEEK)/HA납미복합분말。채용X사선연사、소묘전자현미경、부립협변환홍외광보의、열실중분석、차시소묘량열법대산물적결구、형모화열성능진행분석。결과표명,제비출적HA정구상,대소균일,평균립경위98 nm。이SPEEK위상용제통과용액공혼법제비적PEEK/HA복합분말분산성능화열은정성량호,가용우선택성격광소결공예。
Hydroxyapatite(HA) was prepared by chemical precipitation using ammonium dihydrogen phosphate and calcium nitrate tetrahydrate as starting materials and polyethylene glycol(2000) as the surfactant. Sulfonated polyetheretherketone(SPEEK) which was used to modify the surface of nano-hydroxyapatite was prepared by sulfonation with strong sulfuric acid as sulfonation agent,then polyetheretherketone(PEEK)/HA nanocomposite powder was prepared through solution blending method. X ray diffraction,scanning electron microscopy,fourier-transform infrared spectroscopy,thermogravimetric analysis,differential scanning calorimetry were used to analyze the structure,morphology and heat behavior of the product. The results demonstrate that the shape of HA with average particle diameter 98 nm is spherical particle and has uniform size. PEEK/HA nanocomposite powder which has good dispersion and thermal stability can be fabricated by selective laser sintering (SLS) process.