Preparation method of modified rosin resin aqueous solution

A technology of modified rosin and aqueous solution, which is applied in chemical modification of natural resins, adhesive additives, polymer adhesive additives, etc., can solve the problems of low storage stability, high production process and equipment requirements, and achieve improvement The effect of open time and adhesion, good product stability, simple production process and equipment

Pending Publication Date: 2021-05-14
厦门中坤化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, rosin resin emulsion is often used as the tackifier of water-based adhesives, which has high requirements for p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023]The preparation method of a modified rosin resin aqueous solution of the present invention includes the following steps:

[0024]1) After the rosin is pulverized, it is put into the reaction kettle, and the temperature is warmed to 150 to 200 ° C;

[0025]2) After the rosin is melted, the unsaturated organic acid is put into the reactor, the temperature control temperature is 180 ~ 220 ° C, and the insulation reaction is 2 to 4 h;

[0026]3) Tour the temperature to 220 ~ 280 ° C, and the polyol is put into the reactor, and the insulation reaction is 2 to 8 h;

[0027]4) Cooling to 100 ~ 200 ° C, put organic amines into the reactor, and the insulation reaction is 2 to 10 h;

[0028]5) Cooling to 50 to 100 ° C, put deionized water into the reactor, stirring 2 to 6 h, i.e., aqueous solution of modified rosin resin.

[0029]Specifically, according to quality ratio, rosin: unsaturated organic acid: polyol: Organic amine: deionized water = 1: (0.05 ~ 0.25) :( 0.1 ~ 0.3) :( 1 ~ 1.2) .

[0030]The zone in...

Example Embodiment

[0031]Example 1

[0032]After pulverizing 100g pine scent, it was put into the reactor, heated to 180 ° C, 10 g of fumaic acid, warmed to 210 ° C, heat preservation 2h, sampling was 211.19 mgKOH / g; heated to 250 ° C, The 15 g of glycid alcohol was added dropwise, and the acid was taken at 132.15 mgKOH / g, and the sample was measured to 170 ° C. 13 g of triethylamine was added, and the insulation reaction was 6 h, the heat preservation was completed, cooled to 90 ° C, add 112 g of deionized water, heat Stirring for 6 h, resulting in aqueous solution of rosin resin.

Example Embodiment

[0033]Example 2

[0034]After pulverizing 100g wetlaces, it was put into the reaction kettle, heated to 180 ° C, 25 g of fumaic acid in batch, warmed to 220 ° C, heat insulation for 4 h, and the sampling was 295.36 mgkoH / g; heated to 270 ° C, 21 g of propalkyl alcohol was added dropwise, and the acid was 8 h. The sampling was acidified of 160.55 mgKOH / g, cooled to 160 ° C, add 20 g of triethylamine, heat insulation reaction for 6 h, ending, cooling to 100 ° C, add 120 g of deionized water, heat Stirring for 6 h, resulting in aqueous solution of rosin resin.

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PUM

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Abstract

A preparation method of a modified rosin resin aqueous solution comprises the following steps: 1) crushing rosin, putting the crushed rosin into a reaction kettle, and heating for melting; 2) after the rosin is melted, adding unsaturated organic acid into the reaction kettle, controlling the temperature and keeping the temperature for a certain time; (3) raising the temperature and putting polyhydric alcohol into the reaction kettle for reaction; 4) cooling and adding organic amine into the reaction kettle for reaction; and (5) continuously cooling, adding deionized water into the reaction kettle, and stirring to obtain the modified rosin resin aqueous solution. The prepared modified rosin resin aqueous solution does not contain volatile organic solvents, is stable in storage, can replace traditional rosin emulsion and is added into a water-based adhesive for use, so that the adhesive force is improved, and the opening time is prolonged.

Description

technical field [0001] The invention relates to the field of chemical products, in particular to a method for preparing a modified rosin resin aqueous solution. Background technique [0002] The solvent used in water-based adhesives is water, which is non-polluting and inexpensive, and its performance can also meet the needs of most adhesives. It has great advantages in terms of economy and environmental protection. In the future, environmentally friendly adhesives will become International mainstream. At present, rosin resin emulsion is often used as the tackifier of water-based adhesives, which has high requirements on production technology and equipment, and rosin resin needs to be emulsified, and its storage stability is generally not high. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, provide a kind of preparation method of modified rosin resin aqueous solution, do not need emulsific...

Claims

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Application Information

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IPC IPC(8): C09F1/04C09J11/08
CPCC09F1/04C09J11/08
Inventor 卢俊琳曾丽丽徐媚冉岳琴杨毅融
Owner 厦门中坤化学有限公司
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