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Flame Retardant Pressure Sensitive Adhesive and Its Application

A technology of pressure-sensitive adhesives and inorganic flame retardants, applied in the direction of pressure-sensitive films/sheets, adhesives, non-polymer adhesive additives, etc., can solve the problems such as the complicated preparation process of carboxyl phosphorus-containing copolyesters, and achieve adhesion Good performance, the effect of improving flame retardant performance

Active Publication Date: 2021-05-25
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this carboxyl-terminated phosphorus-containing copolyester is complex

Method used

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  • Flame Retardant Pressure Sensitive Adhesive and Its Application
  • Flame Retardant Pressure Sensitive Adhesive and Its Application
  • Flame Retardant Pressure Sensitive Adhesive and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The preparation of embodiment 1 urushiol-based phosphorus-containing polymer D1

[0076] Synthesis and Characterization of a1 Urushiol-based Diglycidyl Ethers

[0077] Add 0.3 mol of urushiol and 0.6 mol of epichlorohydrin into a four-neck flask equipped with a stirrer, reflux condenser, thermometer, and dropping funnel, heat up to 55°C, and add 60 ml of 10 mol of / L NaOH solution for 1.5 hours. After the dropwise addition, the temperature was raised to 65° C., and the reaction was carried out at a constant temperature for 5 hours to obtain a mixture containing urushiol bis-shrunk oil ether, water, and sodium chloride. Add xylene and water to the mixture containing urushiol diglycidyl ether, water, and sodium chloride, wash with water, let stand overnight and separate layers, remove the inorganic matter in the water layer, wash repeatedly, and distill under reduced pressure to obtain urushiol-based diglycidol Ether compounds, denoted as r1-1 # .

[0078] Urushiol-bas...

Embodiment 2

[0100] The preparation of embodiment 2 urushiol-based phosphorus-containing polymer D2

[0101] Synthesis and Characterization of a2 Urushiol-based Diglycidyl Ethers

[0102] Add 0.3 mol of urushiol and 0.6 mol of epichlorohydrin into a four-necked flask equipped with a stirrer, reflux condenser, thermometer, and dropping funnel, heat up to 55°C, and add 30 ml of 10 mol of / L KOH solution for 2 hours, after the dropwise addition, the temperature was raised to 65°C, and the reaction was carried out at constant temperature for 4 hours to obtain a mixture containing urushiol bis-shrunk oil ether, water, and sodium chloride. Add xylene and water to the mixture containing urushiol diglycidyl ether, water, and sodium chloride, wash with water, let stand overnight and separate layers, remove the inorganic matter in the water layer, wash repeatedly, and distill under reduced pressure to obtain urushiol-based diglycidol Ether compounds, denoted as r2-1 # .

[0103] Urushiol-based di...

Embodiment 3

[0119] Embodiment 3 Preparation of Flame Retardant Pressure Sensitive Adhesive 1#

[0120] The preparation method of the flame-retardant pressure-sensitive adhesive is: mix 60.0g of urushiol-based phosphorus-containing polymer D1, 1.0g of curing agent TDI, and 39.0g of ethyl acetate under mechanical stirring to obtain a flame-retardant pressure-sensitive adhesive. Glue, recorded as sample 1#.

[0121] In sample 1#, the mass content of each component is:

[0122] Urushiol-based phosphorus-containing polymer D1: 60%;

[0123] Curing agent TDI: 1%;

[0124] Ethyl acetate: 39%.

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Abstract

The application discloses a flame-retardant pressure-sensitive adhesive and its application. The flame-retardant pressure-sensitive adhesive provided by the application includes an urushiol-based phosphorus-containing polymer, a curing agent and an organic solvent. The flame-retardant pressure-sensitive adhesive contains renewable natural product urushiol units, and its long-side unsaturated chains are prone to cross-linking reactions, with good adhesive performance and excellent flame-retardant performance, and the method is simple to operate and has a wide range of raw material sources.

Description

technical field [0001] The application relates to a flame-retardant pressure-sensitive adhesive and its application, belonging to the field of chemical materials. Background technique [0002] Pressure-sensitive adhesives are used in all areas of people's lives, such as labels, packaging, surface protection films, book bindings, tapes, etc. Acrylic pressure-sensitive adhesive has the fastest development in the pressure-sensitive adhesive industry in recent years because of its excellent pressure-sensitive performance, anti-aging and solvent resistance. At present, the output of acrylic pressure-sensitive adhesives has accounted for more than 90% of the output of the entire pressure-sensitive adhesive field. The development of acrylic pressure-sensitive adhesives has greatly facilitated people's lives. Because acrylate materials have flammable hydrocarbon chain segments in their structure, they are easy to burn and difficult to self-extinguish in case of fire. When burning, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J167/02C09J11/06C09J133/04C09J11/04C09J7/38C08G63/692
Inventor 夏建荣林棋郑国才叶远松洪碧琼
Owner MINJIANG UNIV
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