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A kind of high solid content low viscosity clean taste alkyd resin and its preparation method and application

A clean-odor alkyd resin, low-viscosity technology, used in coatings, polyurea/polyurethane coatings, etc., can solve problems such as residual odor, and achieve the effects of increasing cross-linking density, stable and controllable reaction process, and simple operation.

Active Publication Date: 2022-07-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, there are still big problems in the existing technology to completely solve the problem of residual odor after furniture coating paint dries

Method used

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  • A kind of high solid content low viscosity clean taste alkyd resin and its preparation method and application
  • A kind of high solid content low viscosity clean taste alkyd resin and its preparation method and application
  • A kind of high solid content low viscosity clean taste alkyd resin and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) preparation of a kind of high solid content low viscosity clean taste alkyd resin

[0052] In parts by mass, raw material components and consumption are as follows in Table 1

[0053] Table 1

[0054]

[0055] The preparation process includes the following steps:

[0056] Add soybean oleic acid, ricinoleic acid, phthalic anhydride, pentaerythritol, 1,4-butanediol, benzoic acid, polyaldehyde resin KR-A81, maleic anhydride, p-tert-butyl to the reaction kettle by mass fraction benzoic acid, 3 parts of xylene, kept at 170 °C for 3 hours, and kept at 215 °C for 3 hours. When the acid value is lower than 15mgKOH / g and the viscosity reaches the preset viscosity, add 10 parts of xylene and 5 parts of butyl acetate to dilute, A high-solids, low-viscosity, neat alkyd resin is obtained.

[0057] (2) The properties of high-solids and low-viscosity neat alkyd resins are shown in Table 2.

[0058] Table 2

[0059]

[0060]

[0061] (3) Preparation and properties of ...

Embodiment 2

[0076] (1) preparation of a kind of high solid content low viscosity clean taste alkyd resin

[0077] In parts by mass, raw material components and consumption are as follows in Table 5

[0078] table 5

[0079]

[0080]

[0081] The preparation process includes the following steps:

[0082] Add soybean oleic acid, coconut oil, phthalic anhydride, pentaerythritol, trimethylolpropane, ethylene glycol, diethylene glycol, tannic acid, polyaldehyde resin KR-80F to the reaction kettle by mass fraction, Maleic anhydride, 5 parts of xylene, kept at 190°C for 2h, slowly heated up, kept at 200°C for 5h, when the acid value was lower than 15mgKOH / g and the viscosity reached the preset viscosity, the temperature was lowered to 80°C, and 5 parts of xylene were added, 4 parts of butyl acetate and 4 parts of ethyl acetate are diluted to obtain a high-solids, low-viscosity, clean-flavored alkyd resin.

[0083] (2) The properties of high-solids and low-viscosity neat alkyd resins are...

Embodiment 3

[0096] (1) preparation of a kind of high solid content low viscosity clean taste alkyd resin

[0097] In parts by mass, raw material components and consumption are as follows in Table 9

[0098] Table 9

[0099]

[0100]

[0101] The preparation process includes the following steps:

[0102] Add coconut oil, ricinoleic acid, phthalic anhydride, pentaerythritol, ditrimethylolpropane, 1,4-butanediol, 2-butyl-2-ethyl- 1,3-Propanediol, benzoic acid, polyaldehyde resin KR-A101, rosin, succinic anhydride, 5 parts of xylene, keep at 180℃ for 2.5h, slowly heat up, keep at 210℃ for 4h, until the acid value is lower than 15mgKOH / g, when the viscosity reaches the preset viscosity, the temperature is lowered to 80° C., and 5 parts of xylene, 5 parts of ethyl acetate, and 4 parts of propylene glycol methyl ether acetate are added to dilute to obtain a high-solids, low-viscosity, clean-flavored alkyd resin.

[0103] (2) The properties of high-solids and low-viscosity neat alkyd re...

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Abstract

The invention discloses a high-solids and low-viscosity clean alkyd resin and a preparation method and application thereof. In parts by mass, the raw materials of the high-solids and low-viscosity clean alkyd resins are composed of: 29.5-33.5 parts of vegetable oil fatty acids, acid anhydrides 18.5-21.5 parts, 2.5-4.9 parts of unit acid, 20.3-24.1 parts of polyol, 2-5 parts of polyacetal resin, 3-5 parts of xylene, 14-15 parts of organic solvent; the resin prepared by the invention has easy structure and performance Controlled and adjustable, etc., used to prepare two-component polyurethane wood paint coatings, with hardness up to H above, adhesion level 0, residual VOC less than 5g / L after the paint film is dried for 2 days, clean and environmentally friendly, with excellent chemical resistance and thermal stability.

Description

technical field [0001] The invention belongs to the technical field of two-component polyurethane wood lacquer, and relates to an alkyd resin, in particular to a preparation method and application of a high-solids, low-viscosity, and clean-flavored alkyd resin. Background technique [0002] Two-component polyurethane wood paint has excellent physical and chemical properties and is widely used in wood furniture and wood floors. According to the different hydroxyl-containing components, it can be divided into acrylic polyurethane, alkyd polyurethane, polyacid polyurethane, polyether polyurethane, epoxy polyurethane and other varieties. [0003] Since the beginning of the 21st century, with the rapid development of the global economy and the gradual strengthening of environmental protection by various governments, countries around the world have paid great attention to the use of environmentally friendly coatings that are different from traditional coatings. The so-called envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/49C09D175/14
CPCC08G63/48C09D175/14
Inventor 瞿金清梅运来马冠豪
Owner SOUTH CHINA UNIV OF TECH
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