OCA (optically clear adhesive) acoustic film and preparation method thereof
A film and acoustic technology, which is applied in the field of OCA acoustic film and its preparation, can solve the problems of complex film preparation process, increase film radius, and low low frequency response, and achieve the effects of cost reduction, good toughness and elasticity, and good mechanical properties
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Embodiment 1
[0038] Raw material composition (parts by weight): 120 parts of modified OCA adhesive emulsion, 12 parts of polylactic acid, 0.8 part of hindered phenolic primary antioxidant, 0.2 part of phosphite secondary antioxidant and 1 part of coupling agent A. The coupling agent A is KH560.
[0039] Preparation of modified OCA adhesive emulsion:
[0040] Raw material composition (parts by weight): 10 parts of acrylic acid, 100 parts of acrylic adhesive, 20 parts of polyurethane acrylate oligomer, 30 parts of bisphenol A dimethacrylate, 2 parts of emulsified silicone oil, 0.01 part of crosslinking curing agent, 10 parts of nano-alumina, 12 parts of polyoxymethylene and 10 parts of composite coupling agent B; the composite coupling agent B includes common silane coupling agents and silane coupling agents with amino groups, the common silane coupling The mass ratio of the agent to the silane coupling agent with amino group is 5:2, the common silane coupling agent is KH560, and the silane c...
Embodiment 2
[0057] Raw material composition (parts by weight): 150 parts of modified OCA adhesive emulsion, 17 parts of polylactic acid, 3 parts of hindered phenolic primary antioxidant and 5 parts of coupling agent A. The coupling agent A is DL171.
[0058] Preparation of modified OCA adhesive emulsion:
[0059] Composition of raw materials (parts by weight): 30 parts of acrylic acid, 120 parts of acrylic adhesive, 30 parts of polyurethane acrylate oligomer, 50 parts of bisphenol A dimethacrylate, 5 parts of higher alcohol fatty acid ester compound, 0.03 parts of joint curing agent, 15 parts of nano-alumina, 17 parts of polyoxymethylene and 20 parts of composite coupling agent B; the composite coupling agent B includes ordinary silane coupling agents and silane coupling agents with amino groups , the mass ratio of the common silane coupling agent to the silane coupling agent with amino group is 5:2, the common silane coupling agent is KH570, and the silane coupling agent with amino grou...
Embodiment 3
[0073] Composition of raw materials (parts by weight): 130 parts of modified OCA adhesive emulsion, 13 parts of polylactic acid, 1 part of phosphite auxiliary antioxidant and 2 parts of coupling agent A. The coupling agent A is KH792.
[0074] Preparation of modified OCA adhesive emulsion:
[0075] Composition of raw materials (parts by weight): 15 parts of acrylic acid, 105 parts of acrylic adhesive, 22 parts of polyurethane acrylate oligomer, 35 parts of bisphenol A dimethacrylate, 2 parts of polyoxyethylene polyoxypropanolamine ether, 0.02 parts of crosslinking curing agent, 12 parts of nano-alumina, 13 parts of polyoxymethylene and 12 parts of composite coupling agent B; the composite coupling agent B includes ordinary silane coupling agents and silane coupling agents with amino groups , the mass ratio of the common silane coupling agent to the silane coupling agent with amino group is 5:2, the common silane coupling agent is KH570, and the silane coupling agent with amin...
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