Production process of PE (Poly Ethylene) protection film

Abstract

The invention discloses a PE protection film production process, which comprises the following steps: S1, raw material preparation: preparing the following raw materials in parts by weight: 90 to 150 parts of low-density polyethylene, 2 to 5 parts of a thermoplastic elastomer, 8 to 18 parts of PE nano zinc oxide master batch, 0.8 to 1.6 parts of an ultraviolet absorbent, 0.8 to 1.6 parts of an UV antioxidant, 0.6 to 1.6 parts of an UV stabilizer, 10 to 24 parts of a dendritic toughening agent, 8 to 24 parts of an allyl elastomer, 10 to 20 parts of water-based acrylic acid and 30 to 60 parts of cross-linked polyacrylic acid; S2, base layer preparation; S3, adhesive preparation; S4, coating with an adhesive; S5, protection layer preparation; S6, coating with a protection layer: coating the surface of an adhesive on one side of a base layer with a protection layer by using a coating machine; S7, pressing and curing treatment; and S8, irradiation crosslinking modification treatment. According to the invention, a protection layer is laminated on the surface of a base layer through an adhesive, so that the ultraviolet resistance and the scratch resistance of the PE protection film are improved, and the PE protection film has relatively high dust and gravel impact resistance.

Description

technical field [0001] The invention belongs to the technical field of PE protective film production, and in particular relates to a PE protective film production process. Background technique [0002] The protective film is a pressure-sensitive adhesive tape mainly used to protect the surface of the material, preventing the surface of the material from being scratched, corroded and polluted during processing, transportation, and use. It is widely used in smart terminals such as mobile phones, automobiles, Industries such as construction and machinery manufacturing. There are many types of protective film products, and its main substrates are polyethylene terephthalate (PET) film and polyethylene (PE) film. Among them, PE film has excellent flexibility and extensibility, and can protect the material to be protected. It achieves very good fit protection, so it has been widely used. [0003] For example, the authorized announcement number is CN108251006A, which discloses a p...

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Problems solved by technology

[0004] Although the above-mentioned polypropylene type protective film for photosensitive dry film and its production method combine the advantages of PP and PE dry film, a kind of photosensitive dry film protective film is produced by multi-layer co-extrusion process, with a wide range of total thickness, which can be produced The thinner film than the existing technology reduces the cost of use, but it does not solve the existing problems in the existing PE protective film production process: the crossover of the UV resistance and scratch resistance of the PE protective film reduces the resistance of the PE protective film. Dust and gravel impact ability, at the same time, the appearance of PE protective film is not smooth enough, prone to wrinkling, which reduces the use effect, so we propose a PE protective film production process

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