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A kind of organosilicon modified alkyd resin and preparation method thereof

A technology of alkyd resin and silicone, applied in the field of silicone modified alkyd resin and its preparation, can solve the problems of complex refining process, poor quality, testicular atrophy, etc., and achieve high cross-linking reactivity and excellent film-forming performance , fast curing effect

Active Publication Date: 2018-10-12
ANHUI JINDUN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now that the living standard has been greatly improved, people often no longer use cottonseed oil, and the crude cotton oil contains gossypol, gum and wax, which is of poor quality and is not suitable for direct consumption. The refining process is also complicated and the refining cost is high.
The consumption of crude cottonseed oil can cause damage to spermatogenic cells, leading to testicular atrophy, and no sperm production, resulting in infertility

Method used

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  • A kind of organosilicon modified alkyd resin and preparation method thereof

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preparation example Construction

[0022] refer to figure 1 , the preparation method of above-mentioned organosilicon modified alkyd resin that the present invention proposes, comprises the steps:

[0023] S1. Fill the reactor with nitrogen until the oxygen volume content in the reactor is ≤2%, then add hydroxyl-terminated aliphatic hyperbranched polyester, crude cottonseed oil, and glutaconic acid solution, heat up to 200-220°C, and keep warm 2-4h, keep stirring during the heating and heat preservation process;

[0024] S2, then lower the temperature to 170-190°C, add xylene, heat up to 210-245°C, reflux and divide water for 3-4 hours, until the acid value of the resin is ≤8mg / g, stir and cool down to 45-55°C to obtain a mixed material;

[0025] S3. Raise the temperature of the mixture to 120-140° C., add silicone monomer, then drop deionized water, keep warm for 2.5-2.8 hours, cool down to room temperature, and filter to obtain silicone-modified alkyd resin.

Embodiment 1

[0028] A kind of organosilicon modified alkyd resin proposed by the present invention, its raw material comprises by weight: 30 parts of hydroxyl-terminated aliphatic hyperbranched polyester, 30 parts of crude cottonseed oil, 50 parts of glutaconedic acid solution, 8 parts of xylene Parts, 25 parts of vinyltriethoxysilane, 15 parts of deionized water.

[0029] The preparation method of the above-mentioned organosilicon modified alkyd resin that the present invention also proposes comprises the steps:

[0030] S1. Fill the reactor with nitrogen until the volume content of oxygen in the reactor is ≤2%, then add hydroxyl-terminated aliphatic hyperbranched polyester, crude cottonseed oil, and glutaconedic acid solution, and heat up to 210°C at a heating rate of 10°C / min, keep warm for 3.2h, keep stirring during heating up and keeping warm;

[0031] S2, then lower the temperature to 175°C, add xylene, heat up to 235°C, reflux and divide water for 3.4 hours, until the acid value of...

Embodiment 2

[0034] A kind of organosilicon modified alkyd resin proposed by the present invention, its raw material comprises by weight: 37 parts of hydroxyl-terminated aliphatic hyperbranched polyesters, 22 parts of crude cottonseed oil, 56 parts of glutaconedic acid solution, 5 parts of xylene Parts, 28 parts of methyltriethoxysilane, 12 parts of deionized water.

[0035] The preparation method of the above-mentioned organosilicon modified alkyd resin that the present invention also proposes comprises the steps:

[0036] S1. Fill the reactor with nitrogen until the volume content of oxygen in the reactor is ≤2%, then add hydroxyl-terminated aliphatic hyperbranched polyester, crude cottonseed oil, and glutaconedic acid solution, and heat up to 200°C at a heating rate of 8°C / min, keep warm for 4h, keep stirring during heating and keeping warm;

[0037] S2, then lower the temperature to 170°C, add xylene, raise the temperature to 245°C, reflux and divide water for 3 hours, until the acid ...

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Abstract

The invention discloses organic silicone-modified alkyd resin. The organic silicone-modified alkyd resin comprises the following raw materials in parts by weight: 30-40 parts of terminated hydroxyl aliphatic hyper-branched polyester, 20-30 parts of rough cottonseed oil, 50-60 parts of a glutaconate solution, 3-8 parts of xylene, 25-30 parts of an organic silicone monomer and 10-15 parts of deionized water. The invention also discloses a preparation method of the organic silicone-modified alkyd resin. The organic silicone-modified alkyd resin has excellent film forming performance, is high in cross-linking reaction activity, high in curing speed, low in viscosity and high in solubility, and has excellent water resistance, heat resistance and stability. By the adoption of the rough cottonseed oil, the production cost is greatly reduced; meanwhile, the problem of treatment of the rough cottonseed oil is solved, energy is saved, waste is turned into treasure, and safety and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of alkyd resins, in particular to an organosilicon-modified alkyd resin and a preparation method thereof. Background technique [0002] Alkyd resin is mainly used in paints and coatings, and is widely used in metal protection, furniture, vehicles, construction, etc. It can also be used as the insulating layer of enameled wires, and the ink made into it is widely used in the printing industry. In addition, it is also used in the manufacture of molded plastics . Alkyd resin is the main film-forming substance of traditional blending paints and enamel paints. It has the characteristics of good weather resistance, good adhesion, brightness and fullness, and is convenient for construction. Dry enamel, primer, topcoat and varnish are widely used in the coating of buildings such as bridges and machinery, vehicles, ships, aircraft and instruments. [0003] Now that the living standard has been greatly improved, peo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/695C08G63/91C08G63/78
Inventor 朱恒衡梅长林胡兰
Owner ANHUI JINDUN PAINT
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