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Renewable alkyd resin with high solid portion and preparation method of enamel paint

A technology of alkyd enamel and alkyd, applied in the field of coatings, can solve problems such as poor performance, achieve the effect of reducing VOC, wide source of raw materials and good weather resistance

Active Publication Date: 2015-04-08
NANJING CHANGJIANG PAINT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another object of the present invention is to overcome the shortcoming of poor performance of general fully renewable resins, to provide a high-solid, low-viscosity alkyd enamel and its preparation method. The present invention is carefully formulated to design a paint film with high mechanical strength, High-solid and low-viscosity alkyd enamel with good weather resistance and all indicators have reached the level of ordinary alkyd enamel

Method used

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  • Renewable alkyd resin with high solid portion and preparation method of enamel paint
  • Renewable alkyd resin with high solid portion and preparation method of enamel paint
  • Renewable alkyd resin with high solid portion and preparation method of enamel paint

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific embodiment, typical but non-limiting embodiment of the present invention is as follows:

[0033] The formulation components and mass percentages of the renewable, high-solid alkyd resin used in the present invention are shown in Table 1.

[0034] Table 1. Resin formulations

[0035]

[0036] Renewable, high solids alkyd resins Examples 1 to 5 were prepared as follows:

[0037] Put the vegetable oleic acid, vegetable oil dimer acid and polysaccharide in the reaction kettle, start stirring, add the solvent to raise the temperature and reflux, raise the temperature to 200-220°C for esterification, until the acid value drops to 5-10mgKOH / g as the end point, cool down To 120-130 DEG C, add the formulated amount of solvent to get a renewable, high-solid alkyd resin with a solid content of 75%.

[0038] In the present invention, the indicators of renewable, high-solid alkyd resin example 1 ...

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Abstract

The invention discloses renewable alkyd resin with high solid portion and a preparation method of an enamel paint. The renewable alkyd resin comprises the following components: 30-50% of plant oleic acid, 15-35% of plant oil dimeric acid, 10-30% of polysaccharide and 20-30% of solvent. The enamel paint comprises the following components by weight: 40-80% of renewable alkyd resin with high solid portion, 8-40% of pigment, 0.1-1% of drier and 3-12% of solvent. The 100% renewable alkyd resin is prepared by renewable plant oil dimeric acid, polysaccharide, plant oleic acid and other ingredients, through elaborate preparation, the enamel paint with high mechanical strength of paint film and good weather fastness is designed, and each index can reach high solidity and low viscosity as common alcohol acid.

Description

technical field [0001] The invention relates to a reproducible, high-solid alkyd resin and its enamel, and their preparation method, belonging to the technical field of coatings. Background technique [0002] In recent years, as the price of fossil fuels (petroleum, coal-based chemical raw materials) continues to rise driven by the energy crisis, and as non-renewable resources, fossil fuels will be exhausted sooner or later. Driven by sustainable development strategies, worldwide The domestic use and development of renewable resources has set off an upsurge. [0003] Alkyd resin paint occupies an extremely important position and a huge share in solvent-based paints due to its excellent durability, gloss, gloss and color retention, hardness, flexibility, and excellent brushability. Generally, alkyd resin vegetable oil accounts for about 50% of the composition, especially when the price of vegetable oil is relatively stable, it is a good choice in terms of sustainable develop...

Claims

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Application Information

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IPC IPC(8): C08G63/52C08G63/49C09D167/08
Inventor 刘保磊张卫中
Owner NANJING CHANGJIANG PAINT
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