Plasma processes for surface modification of fluoropolymers usin

Details Plasma processes for surface modification of fluoropolymers usin Plasma processes for surface modification of fluoropolymers usin

1987-02-25

1988-03-15

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156646, 156668, 156345, 1562726, 20419236, 252 791, 427 39, 427 96, 427307, B44C 122, B29C 3700, C03C 1500, C03C 2506

Patent

active

047311568

ABSTRACT:
There is disclosed a method of raising the surface energy of a fluoropolymer to enable one to wet the surface thereby allowing adhesion of various materials to the surface. The method involves placing the fluoropolymer in a sealed chamber while introducing a combination of oxygen and ammonia gas into the chamber at a predetermined pressure range and at a selected rate. A plasma is created in the chamber during the introduction of the gases for an interval sufficient to remove a substantial amount of fluorine from the surface of said fluoropolymer thereby raising the surface energy of the same.

REFERENCES:
patent: 3030290 (1962-04-01), Ryan
patent: 4064030 (1977-12-01), Nakai et al.
patent: 4344996 (1982-08-01), Banks et al.
patent: 4465547 (1984-08-01), Belke et al.

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