Flame retardant acrylate organic impregnant used for sealing and reinforcing and preparation method of flame retardant acrylate organic impregnant

An acrylate-type, acrylate-based technology, which is applied in the field of flame-retardant acrylate-type organic impregnants for sealing and reinforcement and its preparation, can solve the problems that acrylate impregnants do not have flame-retardant properties and hidden safety hazards, and achieve Good flame retardant, good flame retardant stability, good sealing effect

Inactive Publication Date: 2015-03-04
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acrylate impregnating agent of this invention does not have flame retardant properties, and it is easy to bring safety hazards in the process of production, use and storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 2 parts by mass of hydroxyethyl acrylate, 8 parts by mass of hydroxypropyl methacrylate, 5 parts by mass of ethylene glycol diacrylate, 10 parts by mass of diethylene glycol dimethacrylate, 5 parts by mass of tribromobenzene Allyl ether, 0.5 parts by mass modified alkylphenol polyoxyethylene ether, 0.05 parts by mass of azobisisobutyronitrile, 0.01 parts by mass of hydroquinone, 0.001 parts by mass of disodium edetate, at room temperature Stir and mix evenly to obtain a flame-retardant acrylate type organic impregnating agent. Its sealing qualification rate reaches 99%, and the oxygen index of the cured product is 27.2%.

Embodiment 2

[0024] 5 parts by mass of hydroxypropyl acrylate, 8 parts by mass of cyclohexyl methacrylate, 12 parts by mass of pentaerythritol triacrylate, 7 parts by mass of tribromoneopentyl glycol dimethacrylate, 1.0 parts by mass of polyoxyethylene fatty acid ester , 0.1 parts by mass of azobisisoheptanonitrile, 0.03 parts by mass of naphthoquinone, and 0.003 parts by mass of tetrasodium ethylenediaminetetraacetic acid were stirred and mixed uniformly at room temperature to obtain a flame-retardant acrylate type organic impregnating agent. Its sealing qualification rate reaches 100%, and the oxygen index of the cured product is 27.6%.

Embodiment 3

[0026] 7 parts by mass of tridecyl methacrylate, 8 parts by mass of hydroxypropyl methacrylate, 6 parts by mass of 1,4-butanediol diacrylate, 4 parts by mass of trimethylolpropane trimethacrylate, 3 parts by mass of dibromoneopentyl glycol diacrylate, 5 parts by mass of tetrabromobisphenol A bis(allyl) ether, 2 parts by mass of modified alkylphenol polyoxyethylene ether, 0.2 parts by mass of azobisisobutyl Nitrile, 0.04 parts by mass of 2,6-dibutyl-p-cresol, and 0.007 parts by mass of o-aminophenol were stirred and mixed uniformly at room temperature to obtain a flame-retardant acrylate organic impregnating agent. Its sealing qualification rate reaches 99%, and the oxygen index of the cured product is 27.8%.

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PUM

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Abstract

The invention belongs to the field of chemical industry and in particular relates to a flame retardant acrylate organic impregnant used for sealing and reinforcing and a preparation method of the flame retardant acrylate organic impregnant. The impregnant is prepared from monofunctional acrylate monomers, polyfunctional acrylate monomers, reactive flame retardants, a surfactant, an initiator, a polymerization inhibitor and a chelating agent. The impregnant has the advantages of excellent flame retardance, good flame retardance stability, no toxicity, good sealability and the like.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a flame-retardant acrylate type organic impregnating agent for sealing reinforcement and a preparation method thereof. Background technique [0002] When the casting is solidified from the liquid molten metal, due to the incomplete escape of the internal gas and the uneven shrinkage of the metal crystal, a volume shrinkage of 5%-7% occurs, resulting in porosity, shrinkage, pinholes, cracks and looseness, etc., which are visible to the naked eye. Invisible microporous defects, these defects will not cause damage to the structural strength of the casting, but due to microporous leakage, the sealing performance will be lost and become waste products, causing economic losses. Impregnation is to infiltrate the gel-like impregnating agent into the pores of the casting, so that the impregnating agent hardens and integrates with the inner wall of the pore, so as to achieve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/28C08F220/18C08F222/14C08F222/20C09K3/10
Inventor 项尚林曹培培伍石
Owner NANJING UNIV OF TECH
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