A kind of preparation method of bio-based environment-friendly flame-retardant water-soluble paint

A water-soluble coating, bio-based technology, applied in the field of coatings, can solve the problems of the influence of water-based coating properties and the flame-retardant effect of water-based coatings, achieve good compatibility and dispersibility, improve international competitiveness, and the preparation process is gentle and environmentally friendly Effect

Active Publication Date: 2018-03-20
SHENYANG SHUNFENG NEW MATERIAL CO LTD
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Problems solved by technology

This will not only affect the flame retardant effect of water-based coatings, but also have a certain impact on the characteristics of water-based coatings themselves.

Method used

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  • A kind of preparation method of bio-based environment-friendly flame-retardant water-soluble paint
  • A kind of preparation method of bio-based environment-friendly flame-retardant water-soluble paint

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with specific examples.

[0015] This embodiment provides a preparation method of a novel bio-based environmentally friendly flame-retardant water-soluble coating, which includes the following steps.

[0016] Step 1. Dissolve 2g of sodium tripolyphosphate in 100mL of distilled water, add 25g of starch and stir, and adjust the pH value to 10 with 1.0mol / L sodium hydroxide solution. After reaching 40°C, dry at 40°C to a water content of 50 %, then add 3g sodium chloride and mechanically stir at 60r / min, mix well, add 10mL epichlorohydrin to react at 50°C for 3h, then heat to 110°C for thermal reaction for 1h; use 2% hydrochloric acid to adjust the pH value to 6.8 , washed with water and ethanol respectively, and the obtained product was placed in an oven and dried at 40°C to obtain a functional flame-retardant starch for future use.

[0017] Step 2. Take 25 parts by weight of functional flame-...

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Abstract

The invention provides a preparation method of novel bio-based environment-friendly and flame-retardant water-soluble paint. Functional flame-retardant starch prepared by modifying starch through molecular design is used as the start raw material and compounded with waterborne epoxy resin to form a water-soluble environment-friendly bio-based flame-retardant paint system, the structure with partial epoxy groups is designed in the structure of the flame-retardant system, a network cross-linking structure can be achieved during later-period paint solidification through the type of structure, and performance of the paint is improved; in the flame-retardant system, carbon sources, acid sources and gas sources are combined together through molecular design, and the flame-retardant effect can be more efficiently brought into play. By means of the novel bio-based environment-friendly and flame-retardant water-soluble paint prepared through the method, physical and mechanical properties comparable with those of traditional waterborne paint are achieved, the waterborne paint is endowed with efficient flame-retardant functionality, the added value of current waterborne paint is greatly increased, and the international competitiveness of Chinese on the aspect of the product can be improved through the differential and functional novel water-soluble paint.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation method of a novel bio-based environment-friendly flame-retardant water-soluble coating. Background technique [0002] Nowadays, polymer materials are widely used in various fields such as life and production, and the demand for polymer materials is also increasing day by day. However, polymer materials are mostly combustible or combustible. Therefore, in order to make polymer materials more widely used, flame retardant modification of polymer materials is required. Nowadays, adding various flame retardants to modify polymer materials is one of the main means to improve the flame retardancy of polymer materials. According to investigations and studies, flame retardants suitable for plastic systems account for about 80% of the known types of flame retardants, and flame retardants suitable for coating systems account for only 3% of the known types of flame retardant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D103/08C09D5/18C08B31/12
CPCC08B31/12C09D5/18C09D163/00C08L3/08C08K2003/324
Inventor 刘春峰王杨松陈栋
Owner SHENYANG SHUNFENG NEW MATERIAL CO LTD
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