Inclusion type low-smoke antimony-free flame retardant based on cucurbituril and application of inclusion type low-smoke antimony-free flame retardant

A flame retardant and nitrogen-based flame retardant technology, which is applied in the synthesis and application of flame retardant materials, can solve the problems of reducing flame retardant efficiency and lack of universality, and achieves excellent flame retardant effect, good flame retardant efficiency, Synergistic effect with high efficiency

Active Publication Date: 2021-03-09
广东顺德同程新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to their own chemical structure, these two types of flame retardants have strong hygroscopicity, and will be separated by ions under high temperature and high humidity conditions, which will reduce their flame retardant performance. Currently, surface modification is mainly used to solve the problem, but surface modification only Can target a certain substance, not universal

Method used

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  • Inclusion type low-smoke antimony-free flame retardant based on cucurbituril and application of inclusion type low-smoke antimony-free flame retardant
  • Inclusion type low-smoke antimony-free flame retardant based on cucurbituril and application of inclusion type low-smoke antimony-free flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method based on a melon inclusion type low-smoke antimony-free flame retardant, comprising the steps of:

[0032] (1) Dissolve the five-membered melon rings in concentrated hydrochloric acid, the mass of which is 4 times that of the five-membered melon rings, and raise the temperature to 80°C to completely dissolve the melon rings. Add ammonium polyphosphate according to the molar ratio of cucurbit ring to ammonium polyphosphate is 1.0:0.5, and stir until completely dissolved. Continue to react for 5h and cool to room temperature. Take out the solution and place it in a beaker, add a large amount of ethanol to stir, and precipitate out. The precipitate was obtained by filtration, washed with distilled water, and dried in a vacuum oven at 80° C. to obtain a white cucurbit-flame retardant clathrate solid.

[0033](2) Put 20g MEL, 45g melon ring-flame retardant clathrate solid, 25g metal magnesium hydroxide, and 25g zinc borate into the high-speed mixer in ...

Embodiment 2

[0035] A preparation method based on a melon inclusion type low-smoke antimony-free flame retardant, comprising the steps of:

[0036] (1) Dissolve the six-membered melon rings in concentrated hydrochloric acid, the mass of which is 5 times that of the six-membered melon rings, and raise the temperature to 90°C, and the melon rings will all dissolve. Add melamine phosphate according to the molar ratio of cucurbit ring to melamine phosphate is 1.0:0.8, and stir until completely dissolved. The reaction was continued for 3h and cooled to room temperature. Take out the solution and place it in a beaker, add a large amount of ethanol to stir, and precipitate out. The precipitate was obtained by filtration, washed with distilled water, and dried in a vacuum oven at 80° C. to obtain a white cucurbit-flame retardant clathrate solid.

[0037] (2) Put 30g MCA, 40g melon ring-flame retardant clathrate solid, 20g metal aluminum hydroxide, and 20g zinc borate into the high-speed mixer in...

Embodiment 3

[0047] A preparation method based on a melon inclusion type low-smoke antimony-free flame retardant, comprising the steps of:

[0048] (1) Dissolve the seven-membered melon rings in concentrated hydrochloric acid, the mass of which is 6 times that of the seven-membered melon rings, and raise the temperature to 100°C to completely dissolve the melon rings. According to the molar ratio of cucurbit ring and diammonium hydrogen phosphate is 1.0:1.0, add diammonium hydrogen phosphate and stir until completely dissolved. The reaction was continued for 4h and cooled to room temperature. Take out the solution and place it in a beaker, add a large amount of ethanol to stir, and precipitate out. The precipitate was obtained by filtration, washed with distilled water, and dried in a vacuum oven at 80° C. to obtain a white cucurbit-flame retardant clathrate solid.

[0049] (2) Put 40g MEL, 35g melon ring-flame retardant clathrate solid, 15g metal calcium hydroxide, and 15g zinc borate i...

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Abstract

The invention discloses an inclusion type low-smoke antimony-free flame retardant based on cucurbituril and an application of the inclusion type low-smoke antimony-free flame retardant. A preparationmethod based on the cucurbituril inclusion type low-smoke antimony-free flame retardant comprises the following steps: (1) dissolving cucurbituril in concentrated hydrochloric acid, heating until thecucurbituril is completely dissolved, adding the flame retardant, stirring until the cucurbituril is completely dissolved, reacting, stirring the solution with ethanol after the reaction, filtering toobtain a precipitate, washing the precipitate, and drying to obtain a precursor, so that a cucurbituril flame retardant inclusion compound solid is obtained, and (2) sequentially adding melamine or melamine urate, the cucurbituril flame retardant inclusion compound solid, metal hydroxide and zinc borate into a stirring container, stirring, heating to 80-110 DEG C, adding a silane coupling agent,and stirring to obtain the cucurbituril inclusion type low-smoke antimony-free flame retardant. The hydrophobic cucurbituril inclusion type low-smoke antimony-free flame retardant prepared by the invention is reasonable in proportion, high in uniformity, high in synergistic effect efficiency and excellent in flame retardant effect, and meanwhile, has a smoke suppression effect.

Description

technical field [0001] The invention relates to the technical field of flame retardant material synthesis and application, in particular to a low-smoke antimony-free flame retardant based on melon ring inclusion and its application. Background technique [0002] Polyvinyl chloride (PVC) is one of the five most commonly used plastics in the world. Because of its good electrical insulation properties, it is widely used in the insulation layer of wires and cables. PVC is divided into two categories: hard and soft, and the cable industry is mainly based on soft PVC. PVC itself has a high chlorine index, but a large amount of plasticizer needs to be added to soft PVC, the chlorine content is diluted and reduced, and the flame retardant performance is reduced. There are fire safety hazards during use. Once a fire breaks out in the cable industry, it will cause huge losses to life safety and social and economic stability. Therefore, it is necessary to flame-retardant PVC used in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/06C08K5/3492C08K3/22C08K3/38C08K9/10C08K3/32C08K5/3462C08K5/5313C08K13/06C08L27/06
CPCC08K9/06C08K5/34922C08K5/34928C08K3/22C08K3/38C08K9/10C08K3/32C08K5/3462C08K5/5313C08K13/06C08K2003/323C08K2003/2224C08K2003/387C08K2201/014C08K2003/2227C08K2003/322C08K2003/2206C08L2201/02C08L27/06
Inventor 程飞杜建聪陆钊申
Owner 广东顺德同程新材料科技有限公司
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