Special protective film for anti-static chip and preparation method of special protective film

The invention is applicable to the technical field of protective films, and provides a special protective film for an anti-static chip, which comprises a base material layer, and a PU (polyurethane) adhesive coating and a release film are sequentially attached to the lower surface of the base materi...

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1. Verfasser: HONG LIZHI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention is applicable to the technical field of protective films, and provides a special protective film for an anti-static chip, which comprises a base material layer, and a PU (polyurethane) adhesive coating and a release film are sequentially attached to the lower surface of the base material layer; wherein the PU adhesive coating comprises the following raw materials in percentage by weight: 86%-92% of acrylate, 0.5%-1% of an antistatic blocking agent, 2%-8% of a modifier and 0.4%-0.8% of a curing agent. The invention also provides a preparation method of the special protective film for the anti-static chip. The preparation method comprises the following steps: preparing the PU adhesive coating; and preparing the protective film. The base material layer subjected to anti-static treatment is adopted, static electricity and the like generated during movement or friction are effectively reduced, material waste is reduced, and the prepared protective film is moderate in viscosity, easy to remove, free o