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A kind of multi-component alkyd resin transparent primer with phase change expansion and fire prevention and preparation method thereof

An alkyd resin, phase-change expansion technology, used in primers, fire-retardant coatings, coatings, etc., can solve the problems of not being able to paint with wood products, the primer has no flame retardant and fire resistance, and opacity. Fire rescue and escape timing, reduce fire occurrence, good decorative effect

Active Publication Date: 2020-08-25
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, the primers of the above-mentioned patents either do not have flame-retardant and fire-resistant properties, or are so opaque that they cannot be used for natural color coating of wood products

Method used

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  • A kind of multi-component alkyd resin transparent primer with phase change expansion and fire prevention and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of multi-component alkyd resin transparent primer of phase change expansion and fire prevention of the present invention, its preparation method comprises the steps:

[0046] (1) Preparation of starch phosphate: Dissolve 0.6g sodium dihydrogen phosphate, 1.0g disodium hydrogen phosphate, 1.6g hydrogen peroxide and 5.85g urea in 100g water to obtain a mixed solution, adjust to the required concentration with dilute acid or dilute alkali The pH is 5.0, then sprayed into 100g of starch under stirring, continue to stir for 30min, and raise the temperature to 65°C under low vacuum to oxidize and dry and dehydrate until the water content is about 10%, and the obtained product is stirred and heated on a fluidized bed dryer Phosphate reaction at 135°C for 1.0h, crush and sieve (160 mesh) to obtain starch phosphate ester. After testing, the degree of substitution DS of starch phosphate ester is 0.120, and the transparency of starch paste is 89.46%;

[0047] (2) Preparatio...

Embodiment 2

[0053] A kind of multi-component alkyd resin transparent primer of phase change expansion and fire prevention of the present invention, its preparation method comprises the steps:

[0054] (1) Preparation of starch phosphate: Dissolve 0.6 parts of sodium dihydrogen phosphate, 1.0 parts of disodium hydrogen phosphate, 1.6 parts of hydrogen peroxide and 5.85 parts of urea in 100 parts of water, and adjust to the required pH with dilute acid or dilute alkali. 5.0, then spray into 100 parts of starch under stirring, continue to stir for 30 minutes, heat up to 65°C under low vacuum, oxidize and dry and dehydrate until the water content is about 10%, stir and heat to 135°C on a fluidized bed dryer Phosphoric acid Esterification reaction for 1.0h, pulverization, sieving (160 mesh) to obtain starch phosphate ester, after testing, the degree of substitution DS of starch phosphate ester was 0.120, and the transparency of starch paste was 89.46%;

[0055](2) Preparation of phase change f...

Embodiment 3

[0061] A kind of multi-component alkyd resin transparent primer of phase change expansion and fire prevention of the present invention, its preparation method comprises the steps:

[0062] (1) Preparation of starch phosphate: Dissolve 0.6 parts of sodium dihydrogen phosphate, 1.0 parts of disodium hydrogen phosphate, 1.6 parts of hydrogen peroxide and 5.85 parts of urea in 100 parts of water, and adjust to the required pH with dilute acid or dilute alkali. 5.0, then spray into 100 parts of starch under stirring, continue to stir for 30 minutes, heat up to 60-70°C under low vacuum, oxidize and dry and dehydrate until the water content is about 10%, stir and heat to 135°C on a fluidized bed dryer Phosphate reaction at ℃ for 1.0h, pulverized and sieved (160 mesh) to obtain starch phosphate. After testing, the degree of substitution DS of starch phosphate was 0.120, and the transparency of starch paste was 89.46%;

[0063] (2) Preparation of phase change fireproof slurry: Alkyd re...

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Abstract

The invention discloses phase-change expanded fireproof multi-component alkyd resin transparent primer and a preparation method thereof. The primer comprises a component A and a component B, and the weight ratio of the component A to the component B is 1:(0.8-1.2). By weight, 40-70 parts of alkyd resin, 20-30 parts of starch phosphate, 2-4 parts of polyoxyethylene ether oleate dust-proof agents, 0.5-1.0 part of organic silicon defoaming agents, 0.05-0.1 part of zinc isoocatanoate driers, 3-6 parts of acetone and 20-50 parts of phase-change fireproof slurry are sheared, stirred and mixed to obtain the component A. The component B comprises 30-50 parts of curing agents and 40-60 parts of diluents. The multi-component alkyd resin transparent primer is colorless, transparent and suitable for natural color coating of wooden furniture, most heat can be absorbed by phase change at the initial stage of a fire to inhibit flames, thermal decomposition is performed at the later stage of the fireto form an expanded foam carbon layer for effectively isolating the heat and air, internal materials are effectively protected from fire harm, the flames are effectively isolated, and fire spread is stopped.

Description

technical field [0001] The invention belongs to the field of fireproof primer manufacture, and in particular relates to a phase change expansion fireproof multi-component alkyd resin transparent primer and a preparation method thereof. Background technique [0002] At present, fire retardant coatings are basically divided into intumescent fire retardant coatings and non-intumescent fire retardant coatings. Non-intumescent fire retardant coatings rely on their own high flame retardancy or non-combustibility to achieve the purpose of flame retardant and fire prevention. In order to achieve a good fire prevention effect, it must be painted very thick (> 20mm). Due to the addition of a large amount of halogen, nitrogen, phosphorus Such flame retardants often produce a large amount of toxic gas in the event of a fire, causing poisoning and suffocation of fire personnel. The intumescent fireproof coating absorbs a large amount of heat under the action of flame or high temperat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D5/18C09D7/65
CPCC08K2003/323C08L2201/10C08L2205/03C09D5/002C09D5/18C09D7/65C09D167/08C08L3/06C08L71/02C08K13/02C08K3/32C08K5/34922C08K5/053
Inventor 胡云楚冯斯宇胡进波黄自知文瑞芝王琼袁利萍王文磊邓明向李慧吴袁泊贺任
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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