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Glass adhesive and preparation method thereof

A technology for adhesives and glass, applied in the direction of adhesives, adhesive types, grafted polymer adhesives, etc., can solve problems such as low impact strength and peel strength, poor water resistance and re-peelability, and slow polymerization speed , to achieve the effect of improving the bonding performance, improving the adhesion, and firming the chemical bonding force

Inactive Publication Date: 2021-11-23
JIANGSU XIUQIANG GLASSWORK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large volume shrinkage, the air has serious polymerization inhibition, and the water resistance and re-peelability are poor, which limits its further development; the cationic UV curing agent has a small polymerization volume shrinkage due to the presence of epoxy groups. Air has no effect, but the polymerization speed is slightly slower, the reaction is sensitive to water vapor, and the acid decomposed by the cationic initiator may have a corrosive effect on some bonding materials, and the impact strength and peel strength are low, which leads to a greater limitation in its application

Method used

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  • Glass adhesive and preparation method thereof
  • Glass adhesive and preparation method thereof
  • Glass adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a glass adhesive, which is made of the following components in weight percentage: 45% polyurethane resin, 40% acrylate monomer, 10% N,N-dimethylacrylamide, 3% Silicone, 2% photoinitiator.

[0034] The polyurethane resin is bisphenol A polyurethane resin; the acrylate monomer is methyl methacrylate; the organosilicon is γ-mercaptopropyltrimethoxysilane; the photoinitiator is α-hydroxycyclohexyl Benzophenone.

[0035] The preparation method of described a kind of glass glue, comprises the steps:

[0036] S1. Under the protection of nitrogen, add 5% N,N-dimethylacrylamide to the polyurethane resin in the above weight percentage, and heat and stir at 75°C until the polyurethane resin is completely dissolved and then set aside;

[0037]S2. Dissolve the acrylate monomer and photoinitiator in the above weight percent with the remaining 5% of N,N-dimethylacrylamide, add silicone at the same time, heat and stir at 95°C until completely dissolved, then ...

Embodiment 2-11

[0043] Embodiment 2-11 provides a glass adhesive. Compared with Embodiment 1, the difference is that the weight ratio of each component is changed, and the rest are the same as Embodiment 1, and will not be repeated here. The specific experiment The parameters and results are shown in the table below.

[0044]

[0045]

[0046] Comparing the results of Examples 1 to 5 in the table, it can be seen that the glass adhesive provided by the present invention has good adhesion and acid and alkali resistance. Simultaneously comparing the results of Examples 1 to 5 with Examples 6 to 9, it can be known that the present invention prepares silicone-modified polyurethane resin base by participating in the copolymerization reaction of silicone monomers containing polymerizable double bonds with acrylate monomers and polyurethane resins. It combines the excellent heat resistance, low surface energy and normal temperature curability of silicone with the cohesiveness of polyurethane re...

Embodiment 12-17

[0050] Embodiments 12-17 provide a glass adhesive. Compared with Embodiment 1, the difference is that the type of the acrylate monomer is changed, and the rest are the same as Embodiment 1, and will not be repeated here. The experimental parameters and results are shown in the table below:

[0051]

[0052] Comparing the results of Example 1 and Examples 12-17, it can be seen that the type of acrylate monomer will have a more significant impact on the bond strength of the prepared adhesive, but under the conditions of each dosage ratio defined in the present invention , The prepared adhesives all have high corrosion resistance (20% acid and alkali) performance.

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Abstract

The invention discloses a glass adhesive and a preparation method thereof. The glass adhesive is prepared from the following components in percentage by weight: 30 to 60 percent of polyurethane resin, 20 to 50 percent of an acrylate monomer, 10 to 30 percent of N, N-dimethylacrylamide, 1 to 5 percent of organic silicon and 1 to 5 percent of a photoinitiator. According to the invention, organic silicon with reaction activity is added in a polymerization reaction of acrylic resin, so that the organic silicon is directly grafted on molecular chains of acrylic ester, polyurethane resin and N, N-dimethylacrylamide in the polymerization reaction process, and the organic silane modified acrylic resin with a cross-linked network structure is obtained, so that the bonding performance, the bonding speed, the high temperature resistance, the weather resistance, the acid and alkali resistance and the yellowing resistance of the adhesive are greatly improved; and the N, N-dimethylacrylamide and the acrylate monomer are copolymerized to generate a polymer with a high polymerization degree, and then the adhesive property of the adhesive is further synergistically improved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a glass adhesive and a preparation method thereof. Background technique [0002] Glass is usually divided into oxide glass and non-oxide glass according to the main components. There are few varieties and quantities of non-oxide glasses, mainly chalcogenide glasses and halide glasses. The anions of chalcogenide glass are mostly sulfur, selenium, tellurium, etc., which can cut off short-wavelength light and pass through yellow, red light, and near and far infrared light. It has low resistance and has switching and memory characteristics. Halide glass has low refractive index and low dispersion, and is often used as optical glass. Plexiglass is a polymer obtained by polymerization of acrylic acid and its esters. Plexiglass has excellent light transmission properties, high mechanical strength, corrosion resistance, and easy processing, but its texture is brittle and easily solub...

Claims

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Application Information

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IPC IPC(8): C09J151/08C08F283/00C08F220/14C08F220/54C08F8/42C08F222/14C08F220/18C08F222/16
CPCC09J151/08C08F283/006C08F8/42C08F220/14C08F220/54C08F222/103C08F220/1811C08F222/102C08F222/104
Inventor 张新利赵庆忠张赛赛陆亚静朱承陆召扬
Owner JIANGSU XIUQIANG GLASSWORK CO LTD
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