Reusable composite release film and preparation method thereof

• Main Authors: ZHANG XIAO, ZHANG DESHENG, YANG CHENGYUN, FAN PENGFEI, WAN XINHONG
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention provides a reusable composite release film, the release film is a composite film, the composite film comprises a silicone rubber layer and a PET layer, the silicone rubber layer and the PET layer are compounded by an adhesive, the silicone rubber layer contains porous aerogel microspheres, the thickness of the silicone rubber layer is 0.05-0.1 mm, the thickness of the PET layer is 0.05-0.1 mm, and the thickness of the PET layer is 0.05-0.1 mm. The particle size of the aerogel microspheres is 200 to 400 meshes. The release film adopts a two-layer composite film form, the hardness of the two layers of the composite film is different, the silicone rubber layer is soft, the PET layer is hard, and the soft layer is attached to the carbon fiber, so that the release film has a good stripping effect. 本发明提供了一种可重复利用复合离型膜，所述离型膜为复合膜，所述复合膜包括硅橡胶层和PET层，所述硅橡胶层和PET层采用胶黏剂复合，所述硅橡胶层中含有多孔气凝胶微球，所述硅橡胶层的厚度为0.05-0.1mm，PET层的厚度为0.05-0.1mm，所述气凝胶微球的粒径为200-400目。本发明的离型膜采用两层复合膜的形式，复合膜的两层的软硬程度不同，硅橡胶层较软，PET层较硬，较软的一层贴合碳纤维，使得离型膜具备