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Polyamide wax flowing deformation rheological additive and preparation

A technology of polyamide wax and rheological additive, applied in coating and other directions, can solve the problems of increasing the difficulty of temperature control, energy loss, poor low-temperature activation performance, etc., and achieves good low-temperature activation, narrow melting temperature range, The effect of good liquidity

Active Publication Date: 2011-05-25
ZHUHAI HUAXIA BENTENG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing polyamide wax used as a rheological additive has a disadvantage of poor low-temperature activation performance, and it needs to be activated under conditions of higher temperature, longer time and more polar solvents to achieve a better anti-corrosion effect. Settling and anti-sagging effects increase the difficulty of temperature control and energy loss in the coating manufacturing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In a 1000ml four-necked flask, add 2 moles of 12-hydroxystearic acid, 0.15 moles of ethylenediamine, catalyst phosphoric acid and 0.18% of the catalyst phosphoric acid and 0.18% of the mass of 12-hydroxystearic acid 1010, and install the electric heater , agitator, thermometer, spherical condenser, dropping funnel and oil-water separator, and feed inert gas to heat up for reaction. Polycondensation and reflux reaction at 110-113°C for 1.5h, add 0.12 moles of 1,3-propylenediamine, heat up to 125-128°C for polycondensation and reflux reaction for 2h, then add 0.17 moles of 2-hydroxyethylethylenediamine, 0.26 moles 1,6-hexamethylenediamine, 0.30 moles of m-xylylenediamine and water-carrying agent xylene accounting for 8% of the quality of 12-hydroxystearic acid are heated to carry out polycondensation and dehydration reactions, and the temperature is raised by 10 ° C to 210 ° C per hour. React at 210-213°C until anhydrous is released and the acid value or amine value of th...

Embodiment 2

[0053] In a 1000ml four-necked flask, add 2 moles of 12-hydroxystearic acid, 0.175 moles of ethylenediamine, 0.25% catalyst phosphoric acid and 0.18% antioxidant 1010 of 12-hydroxystearic acid quality, and install the electric heater , agitator, thermometer, spherical condenser, dropping funnel and oil-water separator, and feed inert gas to heat up for reaction. Polycondensation and reflux reaction at 110-113°C for 1.5h, add 0.175 moles of 1,3-propylenediamine, heat up to 125-128°C for polycondensation and reflux reaction for 2h, 0.20 moles of 2-hydroxyethylethylenediamine, 0.22 moles of 1, 6-hexamethylenediamine, 0.23 moles of m-xylylenediamine and the water-carrying agent xylene accounting for 8% of the mass of 12-hydroxystearic acid are heated up for polycondensation and dehydration reactions, and the temperature is raised by 10°C to 210°C per hour. React at 213°C until no water comes out and the acid value or amine value of the reactant is ≤5mgKOH / g to stop the reaction, t...

Embodiment 3

[0055] In a 1000ml four-necked flask, add 2 moles of 12-hydroxystearic acid, 0.05 mole of ethylenediamine, 0.25% catalyst phosphoric acid and 0.18% antioxidant 1010 of 12-hydroxystearic acid quality, and install the electric heater , agitator, thermometer, spherical condenser, dropping funnel and oil-water separator, and feed inert gas to heat up for reaction. Polycondensation and reflux reaction at 110-113°C for 1.5h, add 0.05 mole of 1,3-propylenediamine, heat up to 125-128°C for polycondensation and reflux reaction for 2h, 0.10 mole of 2-hydroxyethylethylenediamine, 0.40 mole of 1, 6-hexamethylenediamine, 0.40 moles of m-xylylenediamine and water-carrying agent xylene accounting for 8% of the mass of 12-hydroxystearic acid are heated to carry out polycondensation and dehydration reactions, and the temperature is raised by 10 ° C to 210 ° C per hour. React at 213°C until no water comes out and the acid value or amine value of the reactant is ≤5mgKOH / g to stop the reaction, t...

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Abstract

The invention relates to a daiamid wax rheological addition agent and a preparation method thereof, belonging to the field of coating. The addition agent is prepared by hydroxy fatty acid, diamine, catalyst, antioxidizer and dehydrant through condensation polymerization, wherein, the hydroxy fatty acid can be optionally a mixture of one or more (C4-C18) hydroxy fatty acids; the diamine can be optionally a mixture of one or more (C4-C10) fatty group diamines, (C6-C8) aromatic diamines and (C4-C6) hydroxide radical diamines. The invention has better low temperature activation and rheological property, and wider application scope for different coating systems. As the daiamid wax rheological addition agent is prepared by condensation polymerization for once, the production technique is simplified, the performance of the product is improved, and the function of sag prevention can be effectively developed.

Description

technical field [0001] The polyamide wax rheology additive and the preparation method of the present invention belong to the field of coatings, in particular to a kind of additive for various coatings such as automobile paints, plastic paints, metal paints, ship paints, container paints, heavy-duty anti-corrosion paints and architectural paints. Auxiliary. Background technique [0002] The existing polyamide wax used as a rheological additive has a disadvantage of poor low-temperature activation performance, and it needs to be activated under conditions of higher temperature, longer time and more polar solvents to achieve a better anti-corrosion effect. Settling and anti-sagging effects increase the difficulty of temperature control and energy loss in the coating manufacturing process. When the polyamide wax rheology additive of the present invention is added during the coating production process, the temperature of the system only needs to reach 35-45° C. for 20-30 minutes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/26C08G69/28C09D7/12
Inventor 吴雪梅周立新
Owner ZHUHAI HUAXIA BENTENG CHEM CO LTD
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