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Composite hydroxide smoke suppression type flame retardant as well as preparation method and application thereof

A composite hydroxide and hydroxide technology, applied in the chemical and material fields, can solve the problems of poor compatibility of matrix resins, low flame retardant efficiency, etc., and achieve the effects of high stability and improved char formation.

Active Publication Date: 2020-05-08
江苏艾特克阻燃材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: This application mainly proposes a composite hydroxide smoke-suppressing flame retardant and its preparation method and application, which solves the low flame retardant efficiency and poor compatibility with the matrix resin in the prior art. Poor technical issues

Method used

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  • Composite hydroxide smoke suppression type flame retardant as well as preparation method and application thereof
  • Composite hydroxide smoke suppression type flame retardant as well as preparation method and application thereof
  • Composite hydroxide smoke suppression type flame retardant as well as preparation method and application thereof

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preparation example Construction

[0033] The preparation method of the composite hydroxide smoke-suppressing flame retardant includes the first method of a fluidized bed equipment method or the second method of a grinding method.

[0034] The first method: the fluidized bed equipment method is that the reaction temperature of the fluidized bed equipment is 65~95°C, the coupling agent is sprayed in through the nozzle, and the reaction time is 30~60min. When the material temperature reaches the reaction temperature, the coupling agent is added, and the coupling agent is The alkoxy group of the coupling agent is hydrolyzed and then condensed, and part of its hydroxyl group reacts with the calcium hydroxide in the hydroxide, and partly reacts with the magnesium hydroxide in the hydroxide, so that the two form an effective chemical coupling bond.

[0035] Described method two: grinding method comprises the steps:

[0036] Step 1: Prepare magnesium hydroxide and calcium hydroxide in a molar ratio of 98.5:1.5~75:25 t...

Embodiment 1

[0051] Flame retardant 1: The molar ratio of magnesium hydroxide to calcium hydroxide is 98:2, magnesium hydroxide is chemical magnesium hydroxide, particle size is 1.5 μm, and calcium hydroxide particle size is 3 μm. The preparation method of the smoke-suppressing flame retardant is Method 1, the coupling agent is vinyl silane coupling agent, the coupling reaction temperature is 70°C, and the coupling reaction time is 35 minutes.

Embodiment 2

[0053] Flame retardant 2: The molar ratio of magnesium hydroxide to calcium hydroxide is 88:12, the magnesium hydroxide is chemical magnesium hydroxide, the particle size is 1.5 μm, and the calcium hydroxide particle size is 10 μm. The preparation method of the smoke-suppressing flame retardant is Method 1, the coupling agent is vinyl silane coupling agent, the coupling reaction temperature is 80°C, and the coupling reaction time is 45 minutes.

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Abstract

The invention discloses a composite hydroxide smoke suppression type flame retardant as well as a preparation method and application thereof. Calcium hydroxide is used as a synergistic flame retardantto be chemically bonded and coupled with magnesium hydroxide to form a stable chemical structure, the flame retardant can be used in polymer products, the smoke density of the flame-retardant polymeris obviously reduced, and the flame retardance and smoke suppression performance of the flame-retardant polymer are improved.

Description

technical field [0001] The invention belongs to the field of chemical industry and materials, and in particular relates to a composite hydroxide smoke-suppressing flame retardant and a preparation method and application thereof. Background technique [0002] In recent years, with the development of the economy, people's living standards have been continuously improved, modernization has been accelerated, and various materials have been developed rapidly. However, in recent years, fires caused by building materials and household appliances have also shown an upward trend, which often causes social and environmental damage. severe economic loss to the family. Therefore, it is necessary to pay special attention to the prevention of fire, and at the same time put forward higher requirements for flame retardancy of materials. [0003] Flame retardant materials are usually added to polymer materials in the form of fillers to reduce the combustion performance of polymer materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/06C08K3/22C08L23/08C08L83/04
CPCC08K9/06C08K3/22C08L23/0853C08K2201/003C08K2003/2224C08K2003/2206C08L2201/02C08L2201/22C08L23/0815C08L83/04
Inventor 陈同唐小强
Owner 江苏艾特克阻燃材料有限公司
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