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Flame-retarding smoke inhibitor and preparation method thereof

A smoke suppressant and alkyl phosphinate technology, applied in the field of flame retardants, can solve the problems of high application cost of flame retardants, difficulty in synthesis, etc., achieve low smoke density, improve flame retardant performance, and high popularization and application value effect

Active Publication Date: 2018-04-24
连云港凯豪阻燃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because melam or melam derivatives are not easy to synthesize, the application cost of flame retardants added with melam is increased

Method used

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  • Flame-retarding smoke inhibitor and preparation method thereof
  • Flame-retarding smoke inhibitor and preparation method thereof
  • Flame-retarding smoke inhibitor and preparation method thereof

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preparation example Construction

[0013] The invention provides a preparation method of a flame retardant and smoke suppressant, comprising the step of contacting the alkyl phosphinate shown in formula (I), tributyltin and tri-n-octyl phosphine oxide by heating at 200-300°C ; Wherein, in formula (I): R 1 For C1-C6 alkyl or phenyl; R 2 For C1-C6 alkyl or phenyl; M is a metal element, n is a number from 1 to 4, so that M n+ is a metal cation, where n+ represents the charge formally assigned to the cation, and n is a number from 1 to 4.

[0014]

[0015] By selecting the types of raw materials and the preparation process according to the above technical scheme, those skilled in the art can obtain the flame retardant and smoke suppressant. The flame retardant and smoke suppressant provided by the present invention can improve its flame retardant performance in applied materials on the basis of maintaining the advantages of low smoke density and no environmental hazards of phosphinate, and does not produce bri...

Embodiment 1

[0040] Preparation of flame retardant and smoke suppressant:

[0041] In parts by weight, 10 parts of alkylphosphinic acid represented by formula (I), 1 part of tributyltin and 6 parts of tri-n-octylphosphine oxide were mixed at 240°C for 20 minutes, and then kept at 260°C for 1.5h, wherein, R 1 is methyl; R 2 is phenyl, M is Al, and n is 3 to obtain flame retardant and smoke suppressant A1.

[0042]

Embodiment 2

[0044] Preparation of flame retardant and smoke suppressant:

[0045] In parts by weight, 10 parts of alkylphosphinic acid represented by formula (I), 2 parts of tributyltin and 8 parts of tri-n-octylphosphine oxide were mixed at 245°C for 25 minutes, and then kept at 270°C for 2 hours, wherein, R 1 is n-propyl; R 2 It is an isopropyl group substituted by a hydroxyl group at the 1 position, M is Al, and n is 3, and the flame retardant and smoke suppressant A2 is obtained.

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Abstract

The invention discloses a flame-retarding smoke inhibitor and a preparation method thereof. The preparation method of the flame-retarding smoke inhibitor includes a step of heating and containing alkylphosphinate, tributyltin and trioctylphosphine oxide shown in formula (I) at 200-300DEG C, wherein in formula (I), R1 is C1-C6 alkyl group or phenyl group; R2 is C1-C6 alkyl group or phenyl group; Mis metal element, n is integer from 1 to 4. The flame-retarding smoke inhibitor can improve its flame retarding performance in application material on the basis of keeping low smoke density of phosphinate, no environmental harm and other advantages; the smoke inhibitor cannot generate fragile matters and reduce the influence on the mechanical performance of a principal material base body; the rawmaterials of the flame-retarding smoke inhibitor is low in price and easy to obtain, so that the flame-retarding smoke inhibitor has high popularization and application value.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a flame retardant and smoke suppressor and a preparation method thereof. Background technique [0002] With the development of economy and society and the accelerated pace of life and work, most office areas are no longer fixed reinforced concrete houses, but more office spaces divided in a building. These spaces are leased to Target customers. Since these spaces often accommodate a large number of people, fire resistance is the most important requirement for leased spaces. Commonly used flame retardants include aluminum hydroxide, cerium hydroxide, magnesium hydroxide, halogenated flame retardants, phosphinates and polycyanamides, etc. Although the commonly used halogenated flame retardants are still widely used, due to Combustion will produce problems such as dioxin and poisonous gas after the fire, so that its harm to human health and the environment has attracted more and more attention...

Claims

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Application Information

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IPC IPC(8): C08K5/5313C08K5/57C08K5/5397C08K13/02C08L27/06
CPCC08K5/5313C08K5/5397C08K5/57C08L27/06C08L2201/02C08L33/04C08K13/02
Inventor 刘傲
Owner 连云港凯豪阻燃科技有限公司
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