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Medium oil alkyd resin for preparing matt resin and preparation method of medium oil alkyd resin

An alkyd resin and matte resin technology, used in coatings, polyester coatings, etc., can solve the problems of high temperature baking, high cost, poor flexibility, etc., and achieve the effect of large construction scope and cost reduction.

Inactive Publication Date: 2014-02-26
上海天地涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a medium-oil alkyd resin for preparing matte resins, so as to overcome the problems of high-temperature baking resistance, poor flexibility and high cost in existing matte resins

Method used

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  • Medium oil alkyd resin for preparing matt resin and preparation method of medium oil alkyd resin
  • Medium oil alkyd resin for preparing matt resin and preparation method of medium oil alkyd resin
  • Medium oil alkyd resin for preparing matt resin and preparation method of medium oil alkyd resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Resin formula

[0026]

[0027] (2) Preparation steps

[0028] According to the production volume, choose equipment and tools such as dispersing cylinder and dispersing machine, and choose the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0029] (1) Put trimethylolpropane, phthalic anhydride, castor oil and 2.42kg xylene (for reflux) into the reaction pot, raise the temperature to about 107°C-113°C and start stirring, adjust the stirring speed to 200-400r / min, to 150-160 Reflux at ℃, discharge water, keep warm at 230-240℃;

[0030] (2) After measuring the acid value of 23KOHmg / g according to the water separator and the outlet water, the temperature is rapidly raised to 260-265°C and kept for 30 minutes;

[0031] (3) Rapidly cool to 230°C and measure the acid value of 13KOHmg / g, then continue to cool down to 90°C, then dilute with the remaining xylene and 1000# s...

Embodiment 2

[0033] (1) Resin formula

[0034]

[0035] (2) Preparation steps

[0036] According to the production volume, choose equipment and tools such as dispersing cylinders and dispersing machines, and choose the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0037] (1) Put trimethylolpropane, phthalic anhydride, castor oil and 2.42kg xylene (for reflux) into the reaction pot, raise the temperature to 107°C-113°C and start stirring, adjust the stirring speed to 200-400r / min, to 150-160°C Reflux, release water, keep warm at 230-240°C;

[0038] (2) After measuring the acid value of 24KOHmg / g according to the water separator and the outlet water, the temperature is rapidly raised to 260-265°C and kept for 30 minutes;

[0039] (3) Rapidly cool to 230°C and measure the acid value of 13KOHmg / g, then continue to cool down to 90°C, then dilute with the remaining xylene and 1000# solvent o...

Embodiment 3

[0041] (1) Resin formula

[0042]

[0043] (2) Preparation steps

[0044] According to the production volume, choose equipment and tools such as dispersing cylinders and dispersing machines, and choose the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0045] (1) Put trimethylolpropane, phthalic anhydride, castor oil and 2.42kg xylene (for reflux) into the reaction pot, heat up to 107°C-113°C and start stirring, adjust the stirring speed to 200-400r / min, to 150-160 Reflux at ℃, discharge water, keep warm at 230-240℃;

[0046] (2) After measuring the acid value of 23KOHmg / g according to the water separator and the outlet water, the temperature is rapidly raised to 260-265°C and kept for 30 minutes;

[0047] (3) Rapidly cool to 230°C and measure the acid value to 12.8KOHmg / g, then continue to cool down to 90°C, and dilute with xylene and 1000#. Sampling to measure the viscos...

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Abstract

The invention relates to a formula of a medium oil alkyd resin for preparing a matt resin and a preparation method of the medium oil alkyd resin. The formula consists of the following components in parts by weight: 15-25 parts of trimethylolpropane, 18-25 parts of phthalic anhydride, 15-25 parts of castor oil, 2-3 parts of dimethylbenzene (for reflux), 15-20 parts of dimethylbenzene and 17-25 parts of 1000#. The alkyd resin has the characteristics of large and uniform molecular weight, high compatibility with acrylic resin and cellulose acetate butyrate, simplicity in extinction and low cost and can be used for preparing the matt resin.

Description

technical field [0001] The invention relates to a resin formulation and a preparation method thereof, in particular to a medium-oil alkyd resin used for preparing a matte resin and a preparation method thereof. Background technique [0002] Many years ago, matte wood paint and matte latex paint were mostly used in the market, and industrial paint was mainly high-gloss; with the development of society and the improvement of people's lives, the aesthetic concept has undergone considerable changes. Matte coatings are increasingly required for many industrial products such as car lights, interior and exterior parts of automobiles, wheels, etc., because matte coatings give people a softer, warmer visual experience and a more textured paint film. [0003] At home and abroad, matte powder is used to make matte paint, which is relatively simple to make. The main disadvantage of using matte powder to make matte paint is that it involves the arrangement of matte powder. The gloss and...

Claims

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Application Information

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IPC IPC(8): C08G63/49C09D167/08
Inventor 王子炜
Owner 上海天地涂料有限公司
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