Patent classifications
C04B41/4849
SEMI-CRYSTALLINE POLYMER-CERAMIC CORE-SHELL PARTICLE POWDERS, AND PROCESSES FOR MAKING AND ARTICLES COMPRISING SUCH POWDERS
Semi-crystalline polymer-ceramic composites and methods. The ceramic-polymer composites, in powder and/or pellet forms, comprise a plurality of core-shell particles, where: each of the core-shell particles comprises a core and a shell around the core; the core comprises a ceramic that is selected from the group of ceramics consisting of: Al.sub.2O.sub.3, ZrO.sub.2, and combinations of Al.sub.2O.sub.3 and ZrO.sub.2; and the shell comprises a semi-crystalline polymer selected from the group of semi-crystalline polymers consisting of: polyphenylene sulfide (PPS), polyaryl ether ketone (PAEK), polybutylene terephthalate (PBT), polypropylene (PP), polyethylene (PE), semi-crystalline polyimide (SC PI), and semi-crystalline polyamide (SC Polyamide). The core-shell particles can be in a powder form (e.g., a dry powder). In pellet form, shells of adjacent core-shell particles are joined to resist separation of the adjacent core-shell particles and deformation of a respective pellet. Methods of forming a ceramic-polymer composite comprise: superheating a mixture of the semi-crystalline polymer (PPS, PAEK, PBT, PP, PE, SC PI, and SC Polyamide), solvent, and the ceramic (Al.sub.2O.sub.3 and/or ZrO.sub.2), to dissolve the semi-crystalline polymer in the solvent; agitating the superheated mixture while substantially maintaining the mixture at an elevated temperature and pressure; and cooling the mixture to cause the semi-crystalline polymer to precipitate on the particles of the ceramic and thereby form a plurality of the present semi-crystalline polymer-ceramic core-shell particles. Methods of molding a part comprise subjecting a powder of the present semi-crystalline polymer-ceramic core-shell particles that substantially fills a mold to a first pressure while the powder is at or above a first temperature above a melting temperature (T.sub.m) of the semi-crystalline polymers.
CONDUCTIVE POLYMER COATINGS FOR THREE DIMENSIONAL SUBSTRATES
The present invention generally relates to compositions and methods for the preparation of conductive polymer coatings, and methods for application of the coatings to three-dimensional substrates.
Ceramic and plastic composite and method for fabricating the same
A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
Ceramic and plastic composite and method for fabricating the same
A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
Conductive polymer coatings for three dimensional substrates
The present invention generally relates to compositions and methods for the preparation of conductive polymer coatings, and methods for application of the coatings to three-dimensional substrates.
CERAMIC AND PLASTIC COMPOSITE
A ceramic and plastic composite includes a ceramic matrix and a plastic layer. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills nanoholes distributed on the surface of the ceramic matrix to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
CERAMIC AND PLASTIC COMPOSITE
A ceramic and plastic composite includes a ceramic matrix and a plastic layer. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills nanoholes distributed on the surface of the ceramic matrix to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
CERAMIC AND PLASTIC COMPOSITE AND METHOD FOR FABRICATING THE SAME
A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.
CERAMIC AND PLASTIC COMPOSITE AND METHOD FOR FABRICATING THE SAME
A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.