| 简介 |
Process to adhere PTFE in film or in sheets adhere to metal or plastic substrata which comprises : 1) making the substratum surface rough by sandblasting; 2) spreading on a PTFE sheet a suspension comprising a solvent or water and a blend of a fluoroelastomer of vinylidene fluoride (VDF) with perfluoropropylene (HFP) to which PTFE is added; sintering between 330 DEG C-400 DEG C; 3) the already treated PTFE part as in point 2) is covered again with a suspension of the same fluoroelastomer of 2); 4) the substratum 1) is put into contact with the PTFE sheet treated as in 3) with the surface which has been subjected to the treatment; the system is then put in press at a temperature comprised between 150 DEG and 200 DEG C. |
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