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Self-flame retardant antibacterial aqueous polyester resin and preparation method thereof

A water-based polyester resin and formulation technology, used in polyester coatings, antifouling/underwater coatings, coatings, etc. performance and other issues, to achieve good fullness, long-lasting flame retardancy and antibacterial properties, and good vividness.

Inactive Publication Date: 2019-12-13
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN108192357A discloses an antibacterial unsaturated polyester resin, which belongs to the technical field of resin preparation. The antibacterial unsaturated polyester resin includes the following raw materials: unsaturated polyester resin, isophthalic anhydride, phthalic anhydride Acid anhydride, glucinol, hydroquinone, cobalt naphthenate, styrene, methyl ethyl ketone peroxide, melamine phosphate, ethylene glycol, silicone, aluminum hydroxide, carbon nanotubes, N,N-dimethylaniline , nano-zinc powder, kaolin, calcium sulfate whiskers, nano-montmorillonite, nano-titanium dioxide, silane coupling agent KH-560, antibacterial modification auxiliary agent, the antibacterial unsaturated polyester resin is prepared by preparing the base material, preparing Modified material, made by mixing base material, modified material and other materials; Chinese patent CN105670238A discloses a bactericidal polyester resin, including the following components by weight: 95 parts of PBT, 5 parts of PET, composite antibacterial 0.2 to 0.4 parts of agent; Chinese patent CN106366600A discloses an antibacterial unsaturated polyester resin for anchoring agent, and its raw materials include: 0.5 to 1 part of zinc stearate, 2 to 4 parts of trioctyl ester, 8 to hydroxy 1.5-2.5 parts of quinoline, 1.5-2.5 parts of bis(2,2,6,6-tetramethyl-4-yl) sebacate, 2-4 parts of p-phenylenediamine, 3-7 parts of modified glycerin , 70-90 parts of phthalic anhydride, 20-30 parts of isophthalic acid, 50-70 parts of diethylene glycol, 20-25 parts of methyl methacrylate, 25-45 parts of styrene; Modified additives achieve antibacterial effect, and have no flame retardant properties, so it is difficult to meet the needs of social multifunctionality, and has certain limitations
The flame retardant performance of this invention is provided by the externally added flame retardant, and the externally added flame retardant has disadvantages such as uneven dispersion, flame retardant time period, easy migration and pulverization, etc.
[0006] Existing coatings basically do not have good antibacterial, bactericidal, and flame-retardant properties. Therefore, it is necessary to provide a self-flame-retardant and antibacterial water-based resin

Method used

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  • Self-flame retardant antibacterial aqueous polyester resin and preparation method thereof
  • Self-flame retardant antibacterial aqueous polyester resin and preparation method thereof
  • Self-flame retardant antibacterial aqueous polyester resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A self-flame-retardant and antibacterial water-based polyester resin, the preparation steps of which are as follows:

[0032] a) In the reactor equipped with a thermometer, condenser, water separator, and agitator, add 4.0 parts of terephthalic acid, 8.0 parts of phthalic anhydride, 6.0 parts of neopentyl glycol, and trimethylol in sequence according to the weight of the formula 7.0 parts of propane, 2.0 parts of dimethylolpropionic acid and 3.0 parts of xylene, and N 2 ;

[0033] b) Heat up to 115°C to reflux, keep warm for 0.5h, remove free water, continue to heat up to 165°C, after the material is dissolved, stir and keep warm at 400r / min for 1h, then heat up to 180°C, add carboxylic acid 4.0 parts of Schiff's base, heat preservation reaction for 1.5h, heat up to 215°C at a rate of 20°C / h, heat preservation reaction for 3h;

[0034] c) Cool down to 180°C, add 2.0 parts of 2-chloro-5-bromobenzoic acid, keep warm for 0.5h, then quickly raise the temperature to 220°C,...

Embodiment 2

[0036] A self-flame-retardant and antibacterial water-based polyester resin, the preparation steps of which are as follows:

[0037]a) In a reactor equipped with a thermometer, a condenser, a water separator, and an agitator, add 5.0 parts of adipic acid, 8.0 parts of acetic anhydride, 2.0 parts of dodecyl succinic anhydride, 1 , 7.0 parts of 4-butanediol, 6.0 parts of trimethylolpropane, 3.0 parts of dimethylolpropionic acid and 4.0 parts of xylene, and N 2 ;

[0038] b) Heat up to 120°C to reflux, keep warm for 0.5h, remove free water, continue to heat up to 160°C, after the material is dissolved, stir and keep warm at 500r / min for 1h, then heat up to 180°C, add carboxylic acid 4.2 parts of Schiff base, heat preservation reaction for 1.5h, heat up to 220°C at a rate of 20°C / h, heat preservation reaction for 3h;

[0039] c) Cool down to 180°C, add 3.1 parts of 2-chloro-5-bromobenzoic acid, keep warm for 0.5h, then rapidly raise the temperature to 220°C, keep warm for 2.5h, ...

Embodiment 3

[0041] A self-flame-retardant and antibacterial water-based polyester resin, the preparation steps of which are as follows:

[0042] a) In a reactor equipped with a thermometer, a condenser, a water separator, and an agitator, add 6.0 parts of sebacic acid, 6.0 parts of maleic anhydride, 5.0 parts of phthalic anhydride, 5.2 parts of pentaerythritol, and 1 ,4 10.0 parts of cyclohexanediol, 3.2 parts of dimethylolpropionic acid and 4.6 parts of xylene, N 2 ;

[0043] b) Heat up to 110°C to reflux, keep warm for 0.5h, remove free water, continue to heat up to 170°C, after the material is dissolved, stir and keep warm at 400r / min for 1h, then heat up to 180°C, add carboxylic acid 4.8 parts of Schiff base, heat preservation reaction for 1.0h, heat up to 210°C at a rate of 20°C / h, heat preservation reaction for 3h;

[0044] c) Cool down to 180°C, add 3.2 parts of 2-chloro-5-bromobenzoic acid, keep warm for 0.5h, then rapidly raise the temperature to 215°C, keep warm for 3.5h, then...

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Abstract

The invention relates to a self-flame retardant antibacterial aqueous polyester resin and a preparation method thereof. The resin comprises the following components in parts by weight: 6.0-12.0 partsof organic anhydride, 3.0-5.0 parts of carboxylic acid Schiff base, 3.0-8.0 parts of polybasic acid, 6.0-20.0 parts of polyhydric alcohols, 1.2-3.5 parts of 2-chloro-5-bromobenzoic acid, 1.5-3.5 partsof dimethylolpropionic acid, 2.0-5.0 parts of xylene, 2.0-5.0 parts of a neutralizing agent and 45.0-65.0 parts of deionized water. The self-flame retardant antibacterial aqueous polyester resin provided by the invention is good in coloring property, low in viscosity, high in hardness, good in fullness, good in brightness, and the like, is free of external flame retardant or antibacterial agent when an aqueous coating is prepared, is long in flame retardant and antibacterial effect lasting and high in efficiency, and can be applied to inner and outer wall coatings, aqueous industrial coatings, aqueous wood product coatings, and the like.

Description

technical field [0001] The invention relates to a preparation method of a modified water-based polyester resin, in particular to a self-flame-retardant and antibacterial water-based polyester resin and a preparation method thereof, belonging to the technical field of synthetic resins. Background technique [0002] Polyester resin is a general term for polymer compounds formed by esterification and polycondensation of dibasic acid or polybasic acid and dibasic alcohol or polyhydric alcohol. The chain links of polyester resin are connected by ester groups, which have excellent cold resistance, chemical resistance and electrical properties, and have good coloring performance, low viscosity, good fullness and vividness, etc. It is a kind of Resin for coatings with excellent properties. Polyester resins are often combined with amino resins to prepare decorative coatings. However, due to the large difference in solubility parameters between the two, polyester varnishes are prone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/685C08G63/682C09D167/00C09D167/06C09D5/18C09D5/14
CPCC08G63/682C08G63/685C09D5/14C09D5/18C09D167/00C09D167/06
Inventor 张武康伦国姚东生
Owner UNION FOSHAN CHEM
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