A kind of epoxy acrylate flame retardant material of zinc-aluminum-tin-containing phosphate intercalation layered hydroxide and preparation method thereof

A layered hydroxide and epoxy acrylate technology, applied in epoxy resin coatings, coatings, fireproof coatings, etc., can solve the problem of insufficient flame retardant and smoke suppression effects of flame retardant hydrotalcite, easy migration of additives and loss of flame retardant Problems such as long-term effect and negative impact on the physical and mechanical properties of materials, to achieve the effect of improving thermal stability and flame retardancy, low cost, and improving mechanical properties

Inactive Publication Date: 2021-04-27
PUTIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main method on the market is to synthesize P or Si-containing flame-retardant active monomers (or oligomers) and copolymerize them with acrylates to prepare UV-curable transparent flame-retardant coatings. Although this method improves the flame-retardant properties of the coating to a certain extent , overcome the shortcomings of the additive flame retardant method, such as poor compatibility with the polymer base material, negative impact on the physical and mechanical properties of the material, easy migration loss of additives, and poor long-term flame retardant performance.
However, when the phosphorus content is large, the material will be plasticized internally and the mechanical properties will be reduced.
On the other hand, from the research reports of synthetic hydrotalcite flame retardants, most of the research is limited to a single interlayer intercalation, so that the flame retardant hydrotalcite obtained alone as a flame retardant is not enough for flame retardancy and smoke suppression. , only by mixing flame retardant hydrotalcite with other flame retardants can the actual use requirements be met

Method used

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  • A kind of epoxy acrylate flame retardant material of zinc-aluminum-tin-containing phosphate intercalation layered hydroxide and preparation method thereof
  • A kind of epoxy acrylate flame retardant material of zinc-aluminum-tin-containing phosphate intercalation layered hydroxide and preparation method thereof
  • A kind of epoxy acrylate flame retardant material of zinc-aluminum-tin-containing phosphate intercalation layered hydroxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Preparation of phosphate-intercalated layered hydroxides containing zinc, aluminum and tin

[0036]Weigh respectively 0.025mol of sodium metaaluminate and 0.025mol of sodium hydroxide and dissolve them in 7.2mL of deionized water to form an aqueous solution (A) containing 10% sodium hydroxide and 20% sodium metaaluminate; weigh tin chloride 0.025mol, zinc chloride 0.9375mol, dissolved in 100mL deionized water to make tin chloride and zinc chloride aqueous solution (B); weigh disodium hydrogen phosphate 0.0125mol and dissolve in 100ml deionized water to make sodium salt solution (C).

[0037] At room temperature, pour the (C) solution into a 250mL three-necked round-bottomed flask, and at the same time, slowly drop the (A) and (B) solutions into the (C) solution with a dropping funnel and stir with an electric mixer. , stirred at room temperature for half an hour, adjusted the pH value of the reaction solution to 10-12 with aqueous sodium hydroxide solution, ...

Embodiment 2

[0038] Example 2: Preparation of Epoxy Acrylate Flame Retardant Material Containing Zinc-Aluminum-Tin-Phosphate-Intercalated Layered Hydroxide

[0039] According to the formula in Table 1, prepare a flame retardant coating with a total mass of 10 g. First, weigh 20 parts of acrylamide (AM), disperse and dissolve it in 15 parts of acrylic acid (AA) with a 1000-watt ultrasonic cleaner for 30 minutes, and then dissolve 2.5 to 15 parts ZnCl 2 Dissolve in the above solution by ultrasonication for 10 min, and then add 0 to 10 parts of the zinc-aluminum-tin-containing phosphate intercalation layered hydroxide Zn prepared in Example 1 7.5 Al 2 sn 2 PO 4 -LDH, use an ultrasonic cleaner for about 20 minutes to disperse in the acrylic acid solution dissolved in zinc chloride and acrylamide, and finally add 36 to 61 parts of epoxy acrylate (EA), and then use an ultrasonic cleaner for 30 minutes to disperse it Dissolve until the system is uniform, and then ultrasonically oscillate for ...

Embodiment 3

[0043] Example 3: Morphological Analysis of Phosphate Intercalated Layered Hydroxides Containing Zinc, Aluminum and Tin

[0044] figure 1 for Zn 7.5 Al 2 sn 2 PO 4 - SEM image of LDH. Depend on figure 1 It can be seen that it is a nanorod structure with a diameter of about 20nm and a length of about 200nm.

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Abstract

The invention discloses an epoxy acrylate flame retardant material containing zinc-aluminum-tin phosphate intercalation layered hydroxide and a preparation method thereof. The zinc-aluminum-tin-containing phosphate intercalation layered hydroxide is prepared. And use it as a carbon-forming catalyst and flame retardant, and compound it with zinc chloride, acrylamide, acrylic acid, and epoxy acrylate to prepare an epoxy acrylate intumescent flame retardant material containing phosphorus, nitrogen, zinc, aluminum, and tin. , is a low-addition high flame-retardant acrylate transparent material, which combines phosphorus and metal Lewis acid to synergistically catalyze the combustion of EA coating to form a uniform porous carbon foam layer, which plays the role of oxygen barrier, heat insulation, smoke suppression, Preventing dripping and other effects can not only improve the flame retardant performance of epoxy acrylate flame retardant materials, but also improve its mechanical properties, and the preparation method is simple and the cost is low. It can be used for decorative fire resistance of wooden furniture and ancient wooden buildings. In the field of combustion coatings, the market prospect is broad.

Description

technical field [0001] The invention belongs to the technical field of epoxy acrylate flame retardant materials, and in particular relates to an epoxy acrylate flame retardant material of phosphate radical intercalation layered hydroxide containing zinc, aluminum and tin and a preparation method thereof. Background technique [0002] Transparent fireproof coating is a type of decorative fireproof coating developed based on the ability to maintain the appearance of the substrate and meet the needs of fire prevention. It is used to protect the surface of ancient buildings, living furniture and fabric decorations without changing their appearance. Appearance and color, it can expand in case of fire and form a uniform and dense honeycomb or spongy carbon foam layer, which has a good protective effect on combustibles and prevents them from being damaged by fire. Important role, has a huge market prospect. Compared with urea-formaldehyde and melamine resins, acrylate resins have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D5/18
CPCC09D5/185C09D163/10C08K9/02C08K7/00C08K3/22
Inventor 杨磊
Owner PUTIAN UNIV
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