High-adhesion phosphoric acid modified resin and preparation method thereof

A technology of high adhesion and modified resin, which is applied in the field of polyurethane, can solve the problems of poor adhesion of polyurethane, and achieve the effect of strong adhesion and obvious competitive advantage

Active Publication Date: 2021-11-05
肇庆市宝骏化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem of poor polyurethane adhesion in the prior art, and provides a phosphoric acid modified resin with high adhesion and a preparation method thereof. By introducing phosphoric acid groups in the preparation process, due to the strong polarity of the phosphoric acid groups Strong chemical bonding with the substrate can effectively promote the adhesion of polyurethane acrylate products and improve performance, very suitable for nail polish base glue

Method used

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  • High-adhesion phosphoric acid modified resin and preparation method thereof
  • High-adhesion phosphoric acid modified resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation method of the phosphoric acid modified resin of high adhesion, comprises the steps:

[0030] (1) First pump the reaction vessel until the air pressure is a negative pressure, feed nitrogen, put in 186g of ethylene glycol and 0.1g of antioxidant TPP, heat to 110°C for dehydration for 1 hour, add 142g of phosphorus pentoxide in 5 times, The temperature was kept at 115° C. for 3 hours to obtain polyester polyols containing phosphoric acid groups;

[0031] (2) 328g of polyester polyol obtained by step (1) and IPDI 666g were dropped into the reaction vessel and stirred for 17 minutes, then 0.2g of catalyst T12 was dropped into the reaction vessel, kept at a constant temperature of 75°C for 3 hours, and then dropped into 360g of hydroxyethyl acrylate, 0.5 g of polymerization inhibitor MEHQ was kept at a constant temperature of 75°C for 4 hours, and discharged after cooling down to 60°C to obtain polyurethane acrylate with a phosphoric acid structure of h...

Embodiment 2

[0033] A kind of preparation method of the phosphoric acid modified resin of high adhesion, comprises the steps:

[0034] (1) First pump the reaction vessel until the air pressure is a negative pressure, feed nitrogen, put in 1.4 cyclohexanedimethanol 432g and antioxidant TPP 0.1g, heat to 110°C for dehydration for 1 hour, and divide phosphorus pentoxide 142g into 5 Once added, the temperature was kept at 115°C for 3 hours to obtain a polyester polyol containing phosphoric acid groups;

[0035] (2) 574g of polyester polyol obtained in step (1) and IPDI 666g were dropped into the reaction vessel and stirred for 17 minutes, then 0.2g of the catalyst stannous octoate was dropped into the reaction vessel, kept at a constant temperature of 75°C for 3 hours, and then dropped into hydroxyethyl acrylate 360g, 0.5g of polymerization inhibitor MEHQ kept at a constant temperature of 75°C for 4 hours, cooled to 60°C and discharged to obtain polyurethane acrylate with phosphoric acid struc...

Embodiment 3

[0037] A kind of preparation method of the phosphoric acid modified resin of high adhesion, comprises the steps:

[0038] (1) First pump the container until the air pressure is a negative pressure, feed in nitrogen, put in 750g of PTMEG250 and 0.1g of antioxidant TPP, heat to 110°C for dehydration for 1 hour, add 142g of phosphorus pentoxide in 5 times, and the temperature is at 115°C ℃ heat preservation for 3 hours, heat preservation until the measured acid value reaches the target value, and discharge to obtain polyester polyol containing phosphoric acid groups;

[0039](2) Put 892g of polyester polyol and IPDI 666g obtained in step (1) into a reaction vessel and stir for 17 minutes, then put 0.8g of catalyst bismuth neodecanoate into the reaction vessel, keep a constant temperature of 75°C for 3 hours, and then drop into hydroxyethyl acrylate 360g of ester and 0.5g of polymerization inhibitor MEHQ were kept at a constant temperature of 75°C for 4 hours, and discharged after...

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Abstract

The invention discloses high-adhesion phosphoric acid modified resin and a preparation method thereof. The high-adhesion phosphoric acid modified resin is prepared from the following raw materials in parts by mass: 322 to 2542 parts of polyester polyol containing a phosphoric acid group, 666 parts of polyisocyanate, 0.15 to 0.8 part of a polymerization inhibitor, 0.2 to 0.8 part of a catalyst and 289 to 432 parts of hydroxyl acrylate. The polyester polyol containing the phosphoric acid group is prepared through the following steps: mixing and heating polyol and an antioxidant; and adding phosphorus-containing acid or acid anhydride several times for an esterification reaction at a temperature of 110-120 DEG C for 2-4 hours, thereby obtaining the polyester polyol containing the phosphate group. According to the invention, the phosphate group is introduced in a preparation process, and the strong polarity of the phosphate group and a base material generate strong chemical bonding effect, so the adhesive force of a polyurethane acrylate finished product can be powerfully promoted, performance is improved, and the resin is very suitable for nail polish primer.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to a phosphoric acid-modified resin with high adhesion and a preparation method thereof. Background technique [0002] Polyurethane is a polymer formed by the polymerization of polyols and polyisocyanates. Because of its light color, high hardness, wear resistance, and high gloss, it is widely used in nail polish coatings, adhesives, inks and other fields; currently The adhesion of industrially produced polyurethane is poor, and there are certain application limitations, which need to be solved urgently. Contents of the invention [0003] The invention solves the problem of poor polyurethane adhesion in the prior art, and provides a phosphoric acid modified resin with high adhesion and a preparation method thereof. By introducing phosphoric acid groups in the preparation process, due to the strong polarity of the phosphoric acid groups Strong chemical bonding with the base m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/46
CPCC08G18/4684
Inventor 谭海剑谭祺才谭道媚谭道礼
Owner 肇庆市宝骏化工有限公司
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