Transparent polyimide hardened film with low shrinkage, high hardness and high wear resistance
A transparent polyimide and hardened film technology, applied in polyether coatings, biocide-containing paints, polyurea/polyurethane coatings, etc., can solve problems such as other failures, screen crease damage, volume shrinkage, etc., to achieve Eliminate shrinkage stress, improve hardness, and avoid shrinkage
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[0023] The present invention is described in further detail now in conjunction with embodiment.
[0024] The high-functionality urethane acrylate used in this application is 6-functionality urethane acrylate (RJ423), 9-functionality urethane acrylate (RJ4217) and 15-functionality urethane acrylate (RJ4219); The acrylates are BASF's 3.4-functionality polyether acrylate (Laromer LR 8997) and 3.5-functionality polyether acrylate (Laromer PO 94F), and DSM's 4-functionality polyether acrylate (AgiSyn 701) and 4-functionality Polyether acrylate (AgiSyn 703); anti-fingerprint additives are Milo AF-JX 82 perfluoropolyether anti-fingerprint oil and perfluoropolyether anti-fingerprint oil additive HTLC-9633.
[0025] The urethane acrylate used in the comparative example is the 2-functional urethane acrylate (RJ4234) of Liangzhi Chemical; the multi-functional polyether acrylate used in the comparative example is the 2-functional polyether acrylate (AgiSyn 702) of DSM.
[0026] Low shrin...
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