Surface texturing of fluoropolymers

Details Surface texturing of fluoropolymers Surface texturing of fluoropolymers

1980-12-19

1982-08-17

Weisstuch, Aaron

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

204 38B, 204192E, 204192EC, B32B 2716, C23C 1500, C23F 100

Patent

active

043449964

ABSTRACT:
This invention is concerned with providing improved surface texturing for adhesive bonding, metal bonding, substrate plating, decal substrate preparation, and biomedical implant applications. The invention is particularly concerned with epoxy bonding to polymers that typically exhibit low adhesion and bonding metals to a desired thickness to a polymer substrate.
The surface 12 to be bonded is first dusted in a controlled fashion to produce a disbursed layer of fine mesh particles 14 which serve as masks. The surface texture is produced by impinging gas ions on the masked surface. The textured surface takes the form of pillars or cones.
The bonding material, such as a liquid epoxy, flows between the pillars which results in a bond having increased strength. For bonding metals a thin film of metal is vapor or sputter deposited onto the textured surface. Electroplating or electroless plating is then used to increase the metal thickness to the desired amount.

REFERENCES:
patent: 4056395 (1977-11-01), Sato et al.
patent: 4064030 (1977-12-01), Nakai et al.
patent: 4073669 (1978-02-01), Heinecke et al.
patent: 4092210 (1978-05-01), Hoeptner
patent: 4160045 (1979-07-01), Longshore
patent: 4199650 (1980-04-01), Mirtich et al.

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