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Shadowless glue with high adhesion and preparation method thereof

A high-adhesive, shadowless adhesive technology, applied in the direction of adhesives, can solve the problems of adverse effects on the environment and human health, uncontrollable curing time, unfavorable operation safety, etc., to achieve good adhesion, control curing time, good flexibility

Inactive Publication Date: 2015-05-20
江苏大力士投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional epoxy resin glue and ordinary unsaturated resin type shadowless glue have low strength and poor adhesion; and the glue is solvent-based, which produces some toxic gases during and after curing, which has adverse effects on the environment and human health; In addition, high temperature is required when the glue is cured, which not only increases energy consumption, but also makes the curing time uncontrollable and is not conducive to operation safety.

Method used

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  • Shadowless glue with high adhesion and preparation method thereof
  • Shadowless glue with high adhesion and preparation method thereof
  • Shadowless glue with high adhesion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 600 kg of polyurethane modified acrylic resin, 900 kg of 191 type unsaturated polyester resin, 600 kg of diluent HEMA and DPGDA. Put the polyurethane modified acrylic resin, 191 type unsaturated polyester resin, diluent HEMA, DPGDA into the reaction kettle in order to mix and stir. During the stirring process, the temperature is controlled at normal temperature, and the stirring time is about 30 minutes, and the stirring is in a uniform state. to stop. Weigh 90kg of photosensitizer 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and put it into the reaction kettle for stirring. During the stirring process, the temperature is controlled at normal temperature and stirred at normal pressure for about 30 minutes, and the stirring is uniform. The colloid was obtained as a shadowless glue.

[0028] The tensile and shear strength of the colloid was measured after curing at room temperature, and the experimental results are shown in Table 1; UV lamps were used for curing....

Embodiment 2

[0030] Weigh 500 kg of polyurethane modified acrylic resin, 900 kg of 191 type unsaturated polyester resin, 600 kg of diluent HDDA and IBOA. Put polyurethane modified acrylic resin, 191-type unsaturated polyester resin, thinner HDDA, and IBOA into the reaction kettle in order to mix and stir. During the stirring process, the temperature is controlled at normal temperature and stirred under normal pressure. The time is about 30 minutes, and the stirring is in a uniform state. to stop. Take by weighing photosensitizer 2-phenylbenzyl-2-dimethylamino-1-(4-morpholine benzylphenyl) butanone 90kg, put into reaction kettle and stir, temperature is controlled at normal temperature in stirring process, stirs under normal pressure, time For about 30 minutes, stir to form a uniform colloid to obtain a shadowless glue.

[0031] Using UV lamp irradiation, the length of UV lamp tube is 10cm, the tube diameter is Φ2cm, and the irradiation distance is 5cm as the standard. The power density of...

Embodiment 4

[0042] Take the colloid prepared in Example 1, cure at room temperature, record the curing time, and see Table 2 for the experimental results.

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Abstract

The invention discloses shadowless glue with high adhesion and a preparation method thereof. The shadowless glue comprises the following components in parts by mass: 10-35 parts of polyurethane modified acrylic resin, 20-45 parts of unsaturated polyester resin, 35-60 parts of a diluent and 2-10 parts of a photosensitizer. Since polyurethane modified acrylic resin and unsaturated polyester resin are blended, such advantages of polyurethane modified acrylic resin as high adhesion and good flexibility and such advantages of unsaturated polyester resin as room-temperature curing and normal-pressure molding properties as well as good processing property are combined; therefore, after being cured, the shadowless glue has excellent adhesion and can be operated under simple and convenient conditions.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a shadowless adhesive with high adhesion and a preparation method thereof. Background technique [0002] Shadowless glue is also called UV (UV is the abbreviation of Ultraviolet Rays in English, that is, ultraviolet light) glue, photosensitive glue, and ultraviolet light curing glue. Shadowless glue refers to a type of adhesive that must be cured by ultraviolet light. It can be used as an adhesive It can also be used as a glue for paints, coatings, inks, etc. Shadowless glue has a wide range of applications, and has good bonding effects in the bonding applications of plastics and plastics, plastics and glass, plastics and metals; through the destructive test, the plastic body can be broken without degumming, And it can be positioned in a few seconds at the fastest, and reach the highest strength in one minute, which greatly improves work efficiency; it is completely transparent after cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J167/06
Inventor 王益强甘水平林传军
Owner 江苏大力士投资有限公司
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