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Special magnetic pressure-sensitive adhesive for prism film

A prismatic film and pressure-sensitive adhesive technology, applied in the direction of adhesive types, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of unreusable prismatic films, lack of adhesiveness of pressure-sensitive adhesives, waste, etc. , to achieve long-term magnetism, prevent oxidation, reduce the effect of agglomeration

Active Publication Date: 2020-04-21
CHANGZHOU HUA R SHENG REFLECTIVE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the traditional prism film pressure-sensitive adhesive is applied, the prism film can be pasted on the smooth surface of the substrate, but when the prism film is torn off, the prism film cannot be used again due to the lack of pressure-sensitive adhesiveness, resulting in many unnecessary waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment relates to a special pressure-sensitive adhesive for prism film with magnetism, which specifically includes the following:

[0027] First, the preparation of modified magnetic particles is as follows:

[0028] (1) Mix polyethylene glycol and polyethylene glycol monomethyl ether in a flask at a mass ratio of 1:2, and add dichloromethane 30 times the mass of polyethylene glycol and 0.5 times the mass of polyethylene glycol to the flask After stirring and mixing, 2-bromopropionyl bromide with 0.2 times the mass of polyethylene glycol was added to the flask, and nitrogen gas was introduced into the flask at a rate of 35mL / min. After stirring and reacting under the conditions for 18 hours, concentrate by rotary evaporation, evaporate half of the solvent to obtain a concentrated solution, then precipitate the concentrated solution with ether, and filter to obtain a solid initiator;

[0029] (2) Mix the initiator obtained in step (1) and copper bromide in a th...

Embodiment 2

[0036]This embodiment relates to a special pressure-sensitive adhesive for prism film. On the basis of Embodiment 1, the ratio of raw materials is modified, as follows: in parts by weight, weigh in order: 90 parts of water-based acrylate emulsion, 6 parts of silane Coupling agent KH-570, 10 parts of modified magnetic particles, 26 parts of curing agent, 21 parts of water and 2 parts of emulsifier, mix water-based acrylic emulsion with silane coupling agent KH-570, and add water-based acrylic emulsion and Add modified magnetic particles to the mixture of silane coupling agent KH-570, stir and mix for 1 hour at a temperature of 40°C and a speed of 600r / min to obtain component A; mix the curing agent with water, and Add emulsifier to the mixture of emulsifier and water, and stir and mix for 80 minutes under the condition of temperature of 40°C and rotation speed of 600r / min to obtain component B. Separately package components A and B to obtain a magnetic prism Film special pressu...

Embodiment 3

[0038] This embodiment relates to a special pressure-sensitive adhesive for prism film. On the basis of Embodiment 1, the ratio of raw materials is modified, as follows: in parts by weight, weigh in order: 85 parts of water-based acrylate emulsion, 5 parts of silane Coupling agent KH-570, 9 parts of modified magnetic particles, 24 parts of curing agent, 18 parts of water and 3 parts of emulsifier, mix the water-based acrylic emulsion with silane coupling agent KH-570, and add water-based acrylic emulsion and Add modified magnetic particles to the mixture of silane coupling agent KH-570, stir and mix for 1 hour at a temperature of 40°C and a speed of 600r / min to obtain component A; mix the curing agent with water, and Add emulsifier to the mixture of emulsifier and water, and stir and mix for 80 minutes under the condition of temperature of 40°C and rotation speed of 600r / min to obtain component B. Separately package components A and B to obtain a magnetic prism Film special pr...

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PUM

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Abstract

The invention discloses a special magnetic pressure-sensitive adhesive for a prism film and belongs to the technical field of reflective film adhesives. The magnetic pressure-sensitive adhesive comprises a component A and a component B, wherein the component A mainly comprises the following raw material components (by weight): 80-100 parts of a water-based acrylate emulsion, 2-8 parts of a silanecoupling agent KH-570 and 8-12 parts of modified magnetic particles; and the component B mainly comprises the following raw material components (by weight): 20-30 parts of a curing agent, 15-25 partsof water and 2-3 parts of an emulsifier. According to the special pressure-sensitive adhesive prepared by the invention, the pressure-sensitive adhesive has certain saturated magnetic strength after being used and cured, so that a prism film still has usability after the pressure-sensitive adhesive fails, and the repeated utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of adhesives for reflective films, and in particular relates to a special pressure-sensitive adhesive for prism films with magnetism. Background technique [0002] Pressure-sensitive adhesive is a kind of pressure-sensitive adhesive, which has the characteristics of strong adhesion, no pollution, and convenient use. For example, when bonding reflective film and road signs, the pressure-sensitive adhesive can well attach the reflective film to the road signs, and it is not easy to fall off after long-term use, which plays a good bonding role. [0003] With the development of society, there are more and more types of reflective films today. In addition to ordinary bead-embedded reflective films and sealed microcapsule reflective films, there are now prism films. Prism films have excellent reflective properties, so more and more people's attention. [0004] After the traditional prism film pressure-sensitive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J11/04C08F293/00
CPCC08F293/00C08K2003/2275C08K2201/011C09J11/04C09J133/08C08K9/10C08K3/22
Inventor 陆亚建冉科朱洁
Owner CHANGZHOU HUA R SHENG REFLECTIVE MATERIAL
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