Polycarbonate and polymethyl methacrylate lamination adhesive resin, preparation method and application thereof

A technology of polymethyl methacrylate and polycarbonate, which is applied in the field of adhesive resin and preparation, can solve the problems that the film cannot be bonded according to the shape, the resin is difficult to obtain bonding, and the deformation of the laminated material is good. Effects of optical and mechanical properties, material shape stability, good adhesive properties

Active Publication Date: 2020-11-13
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inherent characteristics of polycarbonate and polymethyl methacrylate materials, when laminated with film, high temperature and high pressure will cause deformation of the material, and the surface energy of polycarbonate and polymethyl methacrylate is low, and the adhesion to the film is poor.
In addition, for the lamination of curved surfaces and special-shaped structures, the film cannot be fitted with the shape
[0004] There are also many problems in the lamination and bonding of general transparent resins. First, the surface energy of polycarbonate and polymethyl methacrylate materials is low, and it is difficult to obtain good bonding with general resins; secondly, the interlayer of lamination and bonding requires With a certain thickness, the volume of the resin will change during the curing process, which will lead to deformation of the laminated material, especially when the surface is laminated with special-shaped structures; finally, when the sandwich material is used as a structural material, the material itself needs to bear certain external forces. The main body of the adhesive layer material should have sufficient strength to ensure the performance of the material

Method used

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  • Polycarbonate and polymethyl methacrylate lamination adhesive resin, preparation method and application thereof

Examples

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preparation example Construction

[0072] Another embodiment of the present invention proposes a kind of preparation method of polycarbonate and polymethyl methacrylate lamination bonding resin, it comprises:

[0073] Preparation of Component A: Place the polyisocyanate in a four-neck flask equipped with a thermometer, condenser, stirrer and constant pressure titration funnel, heat to 40-80°C, add 0.01-0.5wt% reaction catalyst; polyether Mix polyols, polycarbonate polyols and small molecule polyols to obtain second polyols, add the second polyols to polyisocyanate dropwise for 0.5-2 hours, and stir at 40-80°C for 3-6 hours , by testing that the NCO content is stable as the reaction end point, component A is obtained; wherein the molar ratio of the isocyanate group in the polyisocyanate to the second polyol is 1.4-4;

[0074] Preparation of component B: mixing hydroxyacrylic resin, the first polyol, transparent microspheres and additives to obtain component B;

[0075] Mix component A and component B according ...

Embodiment 1

[0088] One embodiment of the present invention proposes a kind of preparation method of polycarbonate and polymethyl methacrylate lamination bonding resin, it comprises:

[0089] Preparation of Component A: 100g of polyisocyanate IPDI was placed in a four-neck flask equipped with a thermometer, condenser, stirrer and constant pressure titration funnel, heated to 40°C, and 0.01g of reaction catalyst dibutyltin dilaurate was added; 120g of polyether polyol with a molecular weight of 1000 and 100g of polycarbonate polyol with a molecular weight of 1000 are mixed to obtain a second polyol, and the second polyol is added dropwise to a four-necked flask, and after 2 hours, the temperature is raised to Stir at 70°C for 4 hours, analyze the NCO group with an infrared spectrometer, stop the heating reaction when there is no change in the NCO peak, and obtain component A;

[0090] Preparation of component B: Mix 100g methyl methacrylate, 50g butyl methacrylate, and 50g hydroxypropyl met...

Embodiment 2

[0094] One embodiment of the present invention proposes a kind of preparation method of polycarbonate and polymethyl methacrylate lamination bonding resin, it comprises:

[0095] Preparation of Component A: 100g of polyisocyanate IPDI was placed in a four-neck flask equipped with a thermometer, condenser, stirrer and constant pressure titration funnel, heated to 40°C, and 0.01g of reaction catalyst dibutyltin dilaurate was added; 120g of polyether polyol with a molecular weight of 1000 and 100g of polycarbonate polyol with a molecular weight of 1000 are mixed to obtain a second polyol, and the second polyol is added dropwise to a four-necked flask, and after 2 hours, the temperature is raised to Stir at 70°C for 4 hours, analyze the NCO group with an infrared spectrometer, stop the heating reaction when there is no change in the NCO peak, and obtain component A;

[0096] Preparation of component B: Mix 100g methyl methacrylate, 50g butyl methacrylate, and 50g hydroxypropyl met...

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Abstract

The invention relates to polycarbonate and polymethyl methacrylate laminating adhesive resin, a preparation method and application thereof. The polycarbonate and polymethyl methacrylate laminating adhesive resin comprises a component A and a component B, wherein the component A is an NCO-terminated polyurethane prepolymer; the component B comprises hydroxyl acrylic resin, first polyol, transparentmicrospheres and an auxiliary agent; the molar ratio of isocyanate groups in the component A to hydroxyl groups in the component B is 0.9 to 1.3. The adhesive resin not only can be well adhered to polycarbonate and polymethyl methacrylate, but also can guarantee optical properties of an adhered laminated component.

Description

technical field [0001] The invention relates to an adhesive resin, a preparation method and its application, in particular to a polycarbonate and polymethyl methacrylate lamination adhesive resin, a preparation method and its application. Background technique [0002] Polycarbonate and polymethyl methacrylate are widely used transparent optical structure materials, among which polycarbonate material has good impact resistance, but poor wear resistance, and polymethyl methacrylate material has weak impact resistance , but has good wear resistance. With the increasing requirements for the use of organic transparent materials, it is necessary to laminate polycarbonate and polymethyl methacrylate to improve the overall performance of the material and meet special requirements. [0003] The current lamination technology generally adopts the method of laminating films, lamination materials and films are laminated together, and then the films and materials are laminated through hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/75C08G18/67C08G18/66C08G18/62C08G18/48C08G18/44C08G18/38C08G18/32C08G18/12
CPCC08G18/12C08G18/3206C08G18/44C08G18/48C08G18/6225C08G18/755C08G18/62C08G18/673C08G18/3895
Inventor 李旭张运生刘飞
Owner CHINA BUILDING MATERIALS ACAD
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