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Silicon nitride/polyether-ether-ketone composite powder and preparation method and forming method thereof
The invention provides silicon nitride/polyether-ether-ketone composite powder as well as a preparation method and a forming method thereof, and belongs to the field of selective laser sintering. Submicron polyether-ether-ketone is adopted, so that the surface energy of the silicon nitride/polyether-ether-ketone composite powder can be increased to enhance the adhesion of the silicon nitride/polyether-ether-ketone composite powder, and the surface of silicon nitride particles can be wrapped with the polyether-ether-ketone to serve as a binder; meanwhile, silicon nitride and submicron-grade polyether-ether-ketone are uniformly mixed together by adopting a solution blending evaporation method, and the added high-interface-energy graphene oxide is matched, so that the interface bonding force of the silicon nitride and the polyether-ether-ketone can be effectively enhanced, and the sintering performance of the silicon nitride/polyether-ether-ketone composite powder is improved. The problem that agglomeration is prone to occurring in common mechanical mixing is solved, the surfaces of silicon nitride particles are wrapped with the polyether-ether-ketone more evenly, finally, the prepared composite powder is good in fluidity in cooperation with the flow aid, and the requirement of the selective laser sintering technology for powder materials can be met.
本发明提供了一种氮化硅/聚醚醚酮复合粉末及其制备方法和成形方法，属于激光选区烧结领域，本发明采用亚微米级的聚醚醚酮能够增加其表面能以增强其粘附性，使聚醚醚酮能够包裹在氮化硅颗粒的表面充当“粘结剂”，进而使得制备的氮化硅/聚醚醚酮复合粉末更容易烧结，同时采用溶液共混蒸发法将氮化硅和亚微米级的聚醚醚酮均匀地混合在一起，配合加入的高界面能氧化石墨烯，能够有效增强氮化硅和聚醚醚酮的界面结合力，解决普通机械混合容易团聚的问题，使得聚醚醚酮更均匀地包裹在氮化硅颗粒的表面，最后配合助流剂使得制成的复合粉末流动性好,能够满足激光选区烧结技术对粉末材料的要求。
Silicon nitride/polyether-ether-ketone composite powder and preparation method and forming method thereof
The invention provides silicon nitride/polyether-ether-ketone composite powder as well as a preparation method and a forming method thereof, and belongs to the field of selective laser sintering. Submicron polyether-ether-ketone is adopted, so that the surface energy of the silicon nitride/polyether-ether-ketone composite powder can be increased to enhance the adhesion of the silicon nitride/polyether-ether-ketone composite powder, and the surface of silicon nitride particles can be wrapped with the polyether-ether-ketone to serve as a binder; meanwhile, silicon nitride and submicron-grade polyether-ether-ketone are uniformly mixed together by adopting a solution blending evaporation method, and the added high-interface-energy graphene oxide is matched, so that the interface bonding force of the silicon nitride and the polyether-ether-ketone can be effectively enhanced, and the sintering performance of the silicon nitride/polyether-ether-ketone composite powder is improved. The problem that agglomeration is prone to occurring in common mechanical mixing is solved, the surfaces of silicon nitride particles are wrapped with the polyether-ether-ketone more evenly, finally, the prepared composite powder is good in fluidity in cooperation with the flow aid, and the requirement of the selective laser sintering technology for powder materials can be met.
本发明提供了一种氮化硅/聚醚醚酮复合粉末及其制备方法和成形方法，属于激光选区烧结领域，本发明采用亚微米级的聚醚醚酮能够增加其表面能以增强其粘附性，使聚醚醚酮能够包裹在氮化硅颗粒的表面充当“粘结剂”，进而使得制备的氮化硅/聚醚醚酮复合粉末更容易烧结，同时采用溶液共混蒸发法将氮化硅和亚微米级的聚醚醚酮均匀地混合在一起，配合加入的高界面能氧化石墨烯，能够有效增强氮化硅和聚醚醚酮的界面结合力，解决普通机械混合容易团聚的问题，使得聚醚醚酮更均匀地包裹在氮化硅颗粒的表面，最后配合助流剂使得制成的复合粉末流动性好,能够满足激光选区烧结技术对粉末材料的要求。
Silicon nitride/polyether-ether-ketone composite powder and preparation method and forming method thereof
一种氮化硅/聚醚醚酮复合粉末及其制备方法和成形方法
YAN CHUNZE (author) / WANG HAOZE (author) / CHEN PENG (author) / SU JIN (author) / TIAN YUHENG (author) / LI YUXIN (author) / QI LEIYI (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
Preparation and Application Progress of Polyether - Ether - Ketone Coatings
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