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Windshield glass repairing agent and preparation method thereof

A windshield glass repairing and repairing agent technology, which is applied in the direction of modified epoxy resin adhesives, etc., can solve the problems that the strength cannot be maintained for a long time, and the glass repairing agent has poor hidden marks, etc. mild effect

Active Publication Date: 2017-01-04
孙涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a windshield repairing agent and a preparation method thereof for the problems of poor traceability and long-term strength maintenance in existing glass repairing agents

Method used

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  • Windshield glass repairing agent and preparation method thereof
  • Windshield glass repairing agent and preparation method thereof
  • Windshield glass repairing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Under stirring conditions, add 15L epoxy resin E-44 into the reaction vessel, heat to 90°C, then add 12.5L reactive diluent tripropylene glycol diacrylate (TPGDA) and 9L ethyl acrylate; then The temperature of the solution was raised to 110°C, and the condensation reaction was carried out for 45 minutes;

[0039] (2) Keep the solution temperature at 110°C, add dropwise a mixed solution of 3.65L of acrylic acid and 0.05L of hydroquinone within 25 to 30 minutes, and continue the reaction for 20 minutes;

[0040] (3) Add 8L pentaerythritol triacrylate (PETA) and 1.5L photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone (HMPF) respectively in the solution, stir for 20 minutes; Then the solution Cool to room temperature to obtain the restorative agent mother liquor;

[0041] (4) Take 15L of repairing agent mother liquor, add 16.5L of TPGDA, 17L of MMA, 0.6L of coupling agent KH550 and 0.9L of photoinitiator HMPF, stir well and leave it for 240 hours to obtain the repai...

Embodiment 2

[0048] (1) Under stirring conditions, add 3.5L epoxy resin E-31 into the reaction vessel, heat to 85~86°C, then add 2.2L reactive diluent TPGDA and 2L ethyl acrylate; then raise the temperature of the solution to 105 ~106°C, conduct condensation reaction for 60 minutes;

[0049] (2) Keep the solution temperature at 105-106°C, add dropwise a mixed solution of 0.75L acrylic acid and 0.015L hydroquinone within 40 minutes, and continue the reaction for 25 minutes;

[0050] (3) Add 2L of PETA and 0.4L of HMPF to the solution, stir for 25 minutes; then cool the solution to room temperature to obtain the restoration agent mother liquor;

[0051] (4) Take 2.8L of restorative agent mother liquor, add 3L of TPGDA, 3.2L of MMA, 0.1L of coupling agent KH570 and 1.5L of HMPF respectively, stir evenly and leave for 200 hours to obtain the repair agent.

[0052] After testing, the property parameters of the restorative agent prepared by the above method are:

[0053] 1. Curing time: the init...

Embodiment 3

[0058] (1) Under stirring conditions, add 3.3L epoxy resin E-35 into the reaction vessel, heat to 93~95°C, then add 2L reactive diluent TPGDA and 1.6L ethyl acrylate; then raise the temperature of the solution to 113 ~115°C, conduct condensation reaction for 30 minutes;

[0059] (2) Keep the solution temperature at 113-115°C, add dropwise a mixed solution of 0.7L acrylic acid and 0.02L hydroquinone within 35 minutes, and continue the reaction for 30 minutes;

[0060] (3) Add 1.4L PETA and 0.2L photoinitiator HMPF respectively to the solution, stir for 30 minutes; then cool the solution to room temperature to obtain the restoration agent mother liquor;

[0061] (4) Take 3.2L of restorative agent mother liquor, add 3.5L of TPGDA, 3.7L of MMA, 0.15L of coupling agent KH550 and 0.2L of photoinitiator HMPF, stir well and leave it for 220 hours to obtain the repair agent.

[0062] After testing, the property parameters of the restorative agent prepared by the above method are:

[...

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Abstract

The invention provides a windshield glass repairing agent and a preparation method thereof, aims at solving the problems of an existing glass repairing agent that the shadow property is poor and the strength cannot be kept for a long period, and belongs to the technical field of windshield glass repairing agents. The repairing agent is a product prepared by taking repairing agent mother liquid, active diluents including tripropylene glycol diacrylate and methyl methacrylate, a silane coupling agent and an initiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone to react; the repairing agent mother liquid is a product prepared by taking epoxy resin, the tripropylene glycol diacrylate, ethyl acrylate, acrylic acid, hydroquinone, pentaerythritol triacrylate and the 2-hydroxyl-2-methyl-1-phenyl-1-acetone to react. The refractive index of the product is similar with that of windshield glass; the repaired windshield glass has no cracks when being observed from a plurality of angles; a repairing speed is rapid and the strength of the repairing agent at a repaired part can keep unchanged; the utilization strength of the windshield glass is the same as that of undamaged windshield glass.

Description

technical field [0001] The invention belongs to the technical field of glass repairing agents, in particular to a windshield repairing agent and a preparation method thereof. Background technique [0002] my country's car ownership is growing at a rapid rate, and its number has exceeded 100 million. After investigation, the breakage rate of automobile windshield glass is about 10%. If all the damaged windshield glass is replaced, it will cause a lot of waste of replacement costs, and it is not conducive to environmental protection; if the damaged windshield glass is effectively repaired The cost of capital is saved, resources are saved and environmental protection is achieved, and the frequency of replacement of automobile windshields is also reduced, creating huge social benefits. [0003] At present, the better repair technology is to use the repair agent of polymer materials to bond the cracks of the damaged windshield, but the existing repair agent has poor hidden marks...

Claims

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Application Information

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IPC IPC(8): C09J163/10C08G59/17C08G59/16
CPCC08G59/1455C08G59/1466C09J163/10
Inventor 孙涛孙铭汐
Owner 孙涛
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