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A kind of ammonium polyphosphate resistant to migration and precipitation resistance under high temperature and high humidity conditions in acrylic emulsion textile coating and preparation method thereof

A technology of acrylic emulsion and ammonium polyphosphate, which is applied in textiles and papermaking, dyed organic silicon compound treatment, fibrous fillers, etc., can solve the problems of long reaction time, large coating amount, and reduced solubility, and achieves a simple preparation method, Enhanced curing form, long-lasting effect

Active Publication Date: 2021-04-13
SHIFANG TAIFENG NEW FLAME RETARDANT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] APP has the disadvantages of high solubility, strong hygroscopicity, poor compatibility with polymers, and easy migration and precipitation from it.
It is easy to precipitate out after long-term use in textile coatings glued with acrylic emulsion, and is not suitable for coatings in high-temperature and high-humidity environments
Although APP coated with epoxy resin and melamine formaldehyde resin can enhance the compatibility with polymers, it has the disadvantages of large amount of coating, long reaction time, small decrease in solubility, and weakened flame retardancy of APP.
Other methods of coating APP with a silica core-shell structure also have many production steps and need to adjust the pH. They only use physical coating to improve compatibility with other polymers, and have no chemical bonding ability.
The literature reported now shows that amino-modified APP improves its compatibility in polypropylene substrates, but the reaction process uses organic solvents, and the amount is large, which has potential safety hazards, and its use in acrylic emulsions has not been reported. Happening
[0007] When the existing general flame retardants, APP, and coated APP are used in acrylic emulsion, they cannot solve the problem of migration and precipitation of APP flame retardant acrylic emulsion textile coating in high temperature and high humidity environment

Method used

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  • A kind of ammonium polyphosphate resistant to migration and precipitation resistance under high temperature and high humidity conditions in acrylic emulsion textile coating and preparation method thereof
  • A kind of ammonium polyphosphate resistant to migration and precipitation resistance under high temperature and high humidity conditions in acrylic emulsion textile coating and preparation method thereof
  • A kind of ammonium polyphosphate resistant to migration and precipitation resistance under high temperature and high humidity conditions in acrylic emulsion textile coating and preparation method thereof

Examples

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preparation example Construction

[0018] A preparation method of APP resistant to migration and precipitation resistance under high temperature and high humidity conditions in an acrylic emulsion textile coating, comprising the following steps:

[0019] Add APP powder into the water under stirring; it should be noted that, in this embodiment, the mass ratio of water to APP powder is further 1-3:1. To ensure that the APP powder can be fully dissolved in water.

[0020] Then, a coupling agent is added dropwise in an amount of 2-10% by weight of the APP powder; it should be noted that, in this embodiment, the coupling agent contains active groups that can react with unsaturated bonds in the acrylic emulsion. The reactivity of these reactive groups is capable of reacting with the functional groups on the acrylate, thereby bonding the silicone component to the acrylic resin molecule.

[0021] In this embodiment, the inventors creatively found that when the coupling agent includes epoxy silane coupling agent, vinyl...

Embodiment 1

[0026] This example provides a method for preparing APP that is resistant to migration and precipitation under high temperature and high humidity conditions in an acrylic emulsion textile coating, including the following steps:

[0027] Take a certain amount of 500g pure water, add 500g APP under stirring state, then add 2g epoxy silane coupling agent KH560, 3g vinyl silane coupling agent KH171 and 5g methacryloxy coupling agent dropwise under stirring state KH570, after the dropwise addition, stir for 0.5h to obtain the mixture, then filter the mixture until no obvious water droplets exist, and dry the filtered powder in an oven at 120°C for 2h to obtain modified APP.

Embodiment 2

[0029] This example provides a method for preparing APP that is resistant to migration and precipitation under high temperature and high humidity conditions in an acrylic emulsion textile coating, including the following steps:

[0030] Take a certain amount of 500g pure water, add 500g APP under stirring state, then add 2g epoxy silane coupling agent KH560, 3g vinyl silane coupling agent KH171 and 5g methacryloxy coupling agent dropwise under stirring state KH570, after the dropwise addition, stir for 2 hours to obtain a mixture, then filter the mixture until no obvious water droplets exist, and dry the filtered powder in an oven at 120°C for 2 hours to obtain modified APP.

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Abstract

The invention belongs to the technical field of APP modification, and provides APP which is resistant to migration and precipitation under high-temperature and high-humidity conditions in an acrylic emulsion textile coating and a preparation method thereof. The preparation method of the anti-migration and anti-precipitation APP comprises: adding APP powder to the water under stirring state, then dropwise adding a coupling agent whose addition amount is 2-10% of the mass of APP powder, and stirring for 0.5-10% after the dropping is completed. After 5 hours, the mixture was obtained, and then the mixture was filtered until no obvious water droplets existed, and the filtered powder obtained after filtration was dried until there was no moisture. The preparation method is aimed at modifying APP in a specific use environment, and improving the anti-migration and anti-precipitation capabilities of the APP flame-retardant acrylic emulsion textile coating in a high-temperature and high-humidity environment. APP prepared by the above preparation method. When the APP is used in the acrylic emulsion textile coating, it can be precipitated and migrated under higher temperature and humidity conditions.

Description

technical field [0001] The invention belongs to the technical field of modification of ammonium polyphosphate, and in particular relates to an ammonium polyphosphate resistant to migration and precipitation under high-temperature and high-humidity conditions in an acrylic emulsion textile coating and a preparation method thereof. Background technique [0002] Ammonium polyphosphate (APP), as a phosphorus-nitrogen, halogen-free and non-toxic additive flame retardant, is widely used in various flame retardant systems. In the field of textiles, APP is often added as an acid source to flame retardants, especially when back-coating various tents, curtains, sofa releases, seat fabrics, carpets, tablecloths and other industrial or household textiles. However, APP used as a flame retardant still has problems such as high solubility in water, poor compatibility with polymer substrates, and insufficient thermal stability, which limit its wide application. [0003] According to compre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C09C3/12D06N3/00D06N3/04
CPCC09C1/00C09C3/12D06N3/0059D06N3/042D06N2209/067
Inventor 陈荣义刘晓东黄剑袁明强何杰魏玉君伏宏斌
Owner SHIFANG TAIFENG NEW FLAME RETARDANT
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