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Preparation method of flame-retardant PET composite material with DOPO cooperating with MOSS-12

A MOSS-12, composite material technology, applied in the field of PET flame retardant, can solve the problems of spreading and easy to cause fire, and achieve the effect of improving the flame retardant performance of PET

Pending Publication Date: 2022-06-10
吴纪纪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] One of the shortcomings of polyethylene terephthalate (PET) engineering plastics that cannot be ignored is its fire safety. The low oxygen index value of 16-20% and the large amount of smoke and molten droplets produced during combustion are extremely easy to burn. Start a fire and cause it to spread rapidly

Method used

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Embodiment 1

Embodiment 2

Embodiment 3

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Abstract

The invention relates to the technical field of PET (Polyethylene Terephthalate) flame retardance, and discloses a preparation method of a DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) synergistic MOSS-12 flame-retardant PET composite material, which comprises the following steps: carrying out addition reaction on an alkenyl functional group of diallylamine and a phosphorus-hydrogen bond of DOPO to obtain an alkenyl-terminated DOPO functional monomer; the preparation method comprises the following steps: carrying out hydrosilylation reaction on an alkenyl functional group of an alkenyl-terminated DOPO functional monomer and a silicon-hydrogen bond of dodecamethyldodecahydrocyclododecasiloxane (Me-MOSS-H) to obtain a DOPO synergistic MOSS-12 flame retardant; the DOPO synergetic MOSS-12 flame retardant is applied to flame-retardant polyethylene terephthalate (PET) to obtain the DOPO synergetic MOSS-12 flame-retardant PET composite material, and the limit oxygen index of the DOPO synergetic MOSS-12 flame-retardant PET composite material is as high as 31.0-37.3%, so that the beneficial technical effect of remarkably improving the flame retardance of PET is achieved.

Description

technical field [0001] The invention relates to the technical field of PET flame retardant, in particular to a preparation method of DOPO synergistically with MOSS-12 flame retardant PET composite material. Background technique [0002] One of the shortcomings of polyethylene terephthalate (PET) engineering plastics that cannot be ignored is its fire safety. The low oxygen index value of 16-20% and the large amount of smoke and molten droplets produced during combustion are extremely easy to burn. Start a fire and cause the fire to spread rapidly. [0003] DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) is prepared from o-phenylphenol and phosphorus trichloride through a multi-step reaction. DOPO monomer has an active hydrogen, which is very easy to undergo addition reaction with unsaturated compounds to form derivatives, so that the phosphorophenanthrene structure can be introduced into the compound very simply and quickly, so that the newly generated compound ha...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L83/08C08G77/04C08G77/395
CPCC08L67/02C08G77/045C08G77/395C08L2201/02C08L83/08
Inventor 吴纪纪
Owner 吴纪纪