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A kind of fast curing temperature indicating glue and its using method and preparation method

A fast-curing, light-curing technology, used in adhesives, polyether adhesives, non-polymer adhesive additives, etc., can solve the problems of non-curing at the bottom of the glue, easy overflow, poor curing speed and effect, etc. Achieve the effect of solving insufficient curing depth

Active Publication Date: 2022-07-12
XIAMEN WELDTONE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Document CN108219736A discloses a black UV glue, which uses light to generate free radicals for curing. However, in the process of making it black, because it is easy to absorb light, the darker the color, the worse the curing speed and effect , so that the curing depth of the later photocuring is not enough
Its OD value (optical density value) reaches about 2.8, but after reproducing the patented technology, it is found that under the condition of 365nm, the curing depth of the patent is actually less than 0.2mm; The bottom of the glue is not solidified and easy to overflow during the scene, and the bonding effect cannot be achieved

Method used

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  • A kind of fast curing temperature indicating glue and its using method and preparation method
  • A kind of fast curing temperature indicating glue and its using method and preparation method
  • A kind of fast curing temperature indicating glue and its using method and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Accurately weigh each raw material by weight percentage, 80% ethylene glycol dimethacrylate, 0.1% benzophenone, 10% thermal acid generator (TR-TAG of Changzhou Qiangli Electronic New Material Co., Ltd. -50101, the specific temperature T is 120 °C, and acid is generated at 120 °C); the above components are mixed, controlled at a temperature of 25 °C, evacuated to a vacuum degree of -0.07MPa, and stirred at a speed of 50 rpm for 1 hour until no particles; then add 10% polyether acrylate, control the temperature at 25°C, evacuate to -0.07MPa, stir at 50 r / min for 1 hour, and stir evenly; then add 1% acid Chromatic powder (colorless to dark green), 1% fumed silica, temperature controlled at 25°C, evacuated to -0.07MPa, stirred at 50 rpm for 1 hour, stirred evenly, and sealed against light Pack it.

Embodiment 2

[0027] Accurately weigh each raw material by weight percentage, 60% isooctyl acrylate, 0.5% benzophenone, 10% thermal acid generator (TR-TAG-50102 from Changzhou Qiangli Electronic New Material Co., Ltd., specific The temperature T is 100°C, and the acid is produced under the condition of 100°C); the above components are mixed, controlled at a temperature of 25°C, evacuated to a vacuum degree of -0.07MPa, and stirred for 1 hour under the condition of a rotating speed of 50 rpm, until there is no particles; then add 30% polyether acrylate, control the temperature at 25°C, evacuate to a vacuum degree of -0.07MPa, stir at 50 rpm for 1 hour, and stir evenly; then add 5% acid-induced discoloration powder ( Colorless to black), 1% fumed silica, temperature controlled at 25°C, vacuumed to -0.07MPa, stirred at 50 rpm for 1 hour, stirred evenly, and sealed and packaged away from light.

Embodiment 3

[0029] Accurately weigh each raw material by weight percentage, 45% of isobornyl acrylate, 1% of benzophenone, 5% of thermal acid generator (TR-TAG-50108 of Changzhou Qiangli Electronic New Material Co., Ltd., specific The temperature T is 80°C, and the acid is produced under the condition of 80°C); the above components are mixed, controlled at a temperature of 25°C, evacuated to a vacuum degree of -0.07MPa, and stirred for 1 hour under the condition of 50 rpm, until there is no particles; then add 45% of urethane acrylate, control the temperature at 25°C, evacuate to a vacuum of -0.07MPa, stir at 50 rpm for 1 hour, and stir evenly; then add 5% of acid-induced discoloration powder (no color turns black), 8% fumed silica, the temperature is controlled at 25°C, the vacuum is evacuated to -0.07MPa, stirred at 50 r / min for 1 hour, stirred evenly, and sealed and packaged in the dark.

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Abstract

A fast-curing temperature indicating glue and its using method and preparation method. This patent adopts the combination of a thermal acid generator and an acid-induced discoloration powder. Since it is an acid-base chemical reaction, a reversible reaction will not occur due to temperature changes, so even at ‑20 The reversible reaction does not occur at temperatures below 100°C. On the other hand, the present invention maintains transparency during light curing through a two-step reaction method. In the case that the rapid curing temperature indicator glue turns black after discoloration, the 0D value (0.1mm) of the product can reach 3 or more, and the product can be cured at the same time. The effect of depth greater than 10mm solves the problem of insufficient curing depth of black UV glue.

Description

technical field [0001] The invention relates to the field of viscose, in particular to a fast-curing irreversible color temperature indicating glue and a preparation method thereof. Background technique [0002] At present, most of the existing temperature-changing irreversible adhesives on the market use irreversible temperature-changing powder, which can achieve discoloration at high temperature and restore the color at high temperature when returning to normal temperature. It can be used to indicate whether the sample has been baked at high temperature. It is especially used in environments where thermometers and thermocouples cannot be used directly to measure temperature. [0003] However, this kind of irreversible temperature-changeable adhesive made of irreversible temperature-changeable powder also has drawbacks. Because it is a physical reaction, when the ambient temperature drops to about -20 degrees Celsius, it will return to the original color, which is not comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J171/00C09J175/14C09J163/10C09J11/06
CPCC09J171/00C09J175/14C09J163/10C09J11/06C08K5/47
Inventor 曹阳宋亮许逊福魏丹丹赵凤艳
Owner XIAMEN WELDTONE TECH CO LTD