Unlock instant, AI-driven research and patent intelligence for your innovation.

Inorganic flame retardant, preparation method thereof and application of inorganic flame retardant in preparation of sealant

A technology of inorganic flame retardants and initiators, which is applied in the field of materials, can solve the problems of large amount of addition, reducing the flame retardant effect of materials, and reducing the mechanical properties of materials

Active Publication Date: 2021-05-18
深圳市锦昊辉实业发展有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that halogenated flame retardants are prone to produce a large amount of poisonous gas and smoke when they are burned and decomposed, they are not only harmful to human health, but also not environmentally friendly. Therefore, in recent years, halogenated flame retardants have gradually been replaced by halogen-free flame retardants.
[0004]Although the existing halogen-free flame retardants have good flame retardancy, smoke suppression and low toxicity, they have poor compatibility with polymer materials , it is difficult to disperse evenly in the material system, which will not only reduce the flame retardant effect of the material, but also reduce the mechanical properties of the material
In addition, the amount of addition during use is large and the cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inorganic flame retardant, preparation method thereof and application of inorganic flame retardant in preparation of sealant
  • Inorganic flame retardant, preparation method thereof and application of inorganic flame retardant in preparation of sealant
  • Inorganic flame retardant, preparation method thereof and application of inorganic flame retardant in preparation of sealant

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation method of the inorganic flame retardant provided by the embodiment of the present invention is to disperse the superhydrophobic modified montmorillonite in the polymeric phosphate solution, then add a saturated solution of boric acid, and stir the reaction so that borate ions are inserted into the In the interlayer structure of montmorillonite after superhydrophobic modification, it is beneficial to improve the smoke suppression performance of inorganic flame retardants; then add the obtained mixed solution to aluminum hydroxide solution or magnesium hydroxide solution for coating reaction , to obtain aluminum hydroxide-coated or magnesium hydroxide-coated products, which can significantly improve the flame-retardant performance of inorganic flame retardants; then the obtained coated products are filtered, dried, and depolymerized, and then passed through the coupling agent Surface modification treatment is carried out to improve the compatibility of inor...

Embodiment 1

[0038] The preparation steps of the inorganic flame retardant of the present embodiment are as follows:

[0039]Add 100mL vinyl silicone oil, 1.02g sodium dodecylbenzenesulfonate and 700mL water into a flask with a mechanical stirring device, stir and mix evenly, add 501g styrene and 200g trifluorooctyl methacrylate, continue to stir evenly , add 300.1g montmorillonite, heat to 75°C under the protection of nitrogen, then add 0.03g azobisisobutyrocyanide to initiate the reaction, stir for 5 hours, wash with deionized water for 3 times, disperse in ethanol, and Treat at 55° C. for 20 minutes to remove the solvent, and dry to obtain montmorillonite treated with superhydrophobic modification. Disperse the montmorillonite treated with superhydrophobic modification in a sodium hexametaphosphate solution with a concentration of 0.1 g / L to obtain a montmorillonite dispersion. After raising the temperature of the montmorillonite dispersion to 40° C., a saturated solution of boric acid...

Embodiment 2

[0041] The preparation steps of the inorganic flame retardant of the present embodiment are as follows:

[0042] Add 100mL vinyl silicone oil, 1.01g sodium dodecylbenzenesulfonate and 700mL water into a flask with a mechanical stirring device, stir and mix evenly, add 600g styrene and 200g trifluorooctyl methacrylate, continue to stir evenly , add 300.5g montmorillonite, heat to 70°C under the protection of nitrogen, then add 0.025g azobisisobutyrocyanide to initiate the reaction, stir for 7 hours, wash with deionized water for 3 times, disperse in ethanol, and then Treat at 60° C. for 20 minutes to remove the solvent, and dry to obtain montmorillonite treated with superhydrophobic modification. The montmorillonite after the superhydrophobic modification treatment was dispersed in a sodium hexametaphosphate solution with a concentration of 0.2 g / L to obtain a montmorillonite dispersion. After raising the temperature of the montmorillonite dispersion to 40° C., a saturated sol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
thicknessaaaaaaaaaa
oxygen indexaaaaaaaaaa
Login to View More

Abstract

The invention is suitable for the technical field of materials, and provides an inorganic flame retardant and a preparation method and application thereof in sealers. The method comprises the steps: dispersing montmorillonite, after super-hydrophobic modification treatment, in a polyphosphate solution, increasing the temperature to 40-50 DEG C, adding a boric acid saturated solution and carrying out a stirring reaction to obtain a mixed solution; adding the obtained mixed solution into an aluminum hydroxide solution or a magnesium hydroxide solution for coating reaction to obtain a coated product; and then filtering, drying and depolymerizing the obtained coated product, and then carrying out surface modification treatment by using a coupling agent. The inorganic flame retardant prepared by the preparation method disclosed by the invention not only has an excellent flame retardant effect, but also has obviously improved smoke suppression performance; and the material can be well compatible with a high polymer material, can be uniformly dispersed in a material system, and is beneficial to improving the comprehensive performance of the material; when the same flame retardant grade is reached, the addition amount is obviously less than that of the traditional inorganic flame retardant, so that the cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an inorganic flame retardant, a preparation method thereof and an application in preparing sealants. Background technique [0002] Polymer materials can be seen everywhere in all walks of life, and their use range is very wide, basically covering transportation, construction, transportation, communication, aviation, clothing and other fields. However, as we all know, most polymer materials are flammable, so in order to improve their flame retardancy, a certain amount of flame retardant is generally added to the polymer material. [0003] Currently, mainstream flame retardants include halogenated flame retardants and halogen-free flame retardants. However, because halogen-based flame retardants tend to produce a large amount of poisonous gas and smoke when they are burned and decomposed, they are not only harmful to human health, but also not environmentally friendl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K3/34C08K9/02C08K3/22C08K9/06C08K9/04C09J11/04C09J183/04C08L23/06C08L53/02C08L23/12C08L91/06C08K13/06
CPCC08K9/10C08K3/346C08K9/02C08K3/22C08K9/06C08K9/04C08K9/08C09J183/04C09J11/04C08L23/06C08K2003/2227C08K2003/2224C08L2201/02C08L2205/025C08L2205/02C08L2205/035C08L2207/066C08K2201/011C08L83/04C08K13/06C08L53/025C08L23/12C08L91/06
Inventor 邓娇容
Owner 深圳市锦昊辉实业发展有限公司