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Temperature-resistant flame-retardant easily-degradable resin and preparation method thereof

A technology that is easy to degrade and resin is applied in the field of organic composite heat-resistant materials to achieve good stability, good degradability, and easy recycling.

Active Publication Date: 2018-05-18
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems existing in the prior art, and to provide a heat-resistant, flame-retardant and easily degradable resin with high high-temperature stability and easy-to-degradability, and is easy to decompose into liquid small molecules for easy recycling.

Method used

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  • Temperature-resistant flame-retardant easily-degradable resin and preparation method thereof
  • Temperature-resistant flame-retardant easily-degradable resin and preparation method thereof
  • Temperature-resistant flame-retardant easily-degradable resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A temperature-resistant, flame-retardant and easily degradable resin, which is made of elastic hydroxyl resin and isocyanate curing agent according to the ratio of NCO / OH=1.3:1. The elastic hydroxyl resin is composed of the following components by weight: methylphenyldiethyl 106 g of oxysilane, 29 g of phenyltriethoxysilane, 60.8 g of resorcinol, 12.2 g of trimethylolpropane, and 0.1 g of tetra-n-butyl titanate.

[0024] The preparation of the temperature-resistant flame-retardant and easily degradable resin includes the following steps: 106g methylphenyldiethoxysilane, 29g phenyltriethoxysilane, 60.8g resorcinol, 0.1g tetra-n-butyl titanate Add it into a reactor with a distillation condenser; raise the temperature to 160°C, heat it for dealcoholization for 1.5 hours, reduce the pressure to 0.1atm and heat it for 1 hour; after returning to normal pressure, add 12.2g of trimethylolpropane After heat preservation reaction under temperature conditions for 1 hour, depressur...

Embodiment 2

[0028] A temperature-resistant, flame-retardant and easily degradable resin, which is made of elastic hydroxyl resin and isocyanate curing agent according to the ratio of NCO / OH=1.2:1. The elastic hydroxyl resin is composed of the following components by weight: diphenyldiethoxy Dimethoxysilane 93g, Dimethyldimethoxysilane 9g, Methyltrimethoxysilane 11g, Vinyltriethoxysilane 4g, Octyltriethoxysilane 5g, Hydroquinone 65g, Neopentyl Glycol 15g, aluminum trichloride 0.05g.

[0029] The preparation of the temperature-resistant, flame-retardant and easily degradable resin includes the following steps: 93g of diphenyldiethoxysilane, 9g of dimethyldimethoxysilane, 11g of methyltrimethoxysilane, 4g of vinyltriethoxysilane Add silane, 5g octyltriethoxysilane, 65g hydroquinone, and 0.05g aluminum trichloride to the reactor with distillation condenser; raise the temperature to 190°C, keep the temperature for dealcoholization for 1 hour, and then reduce the pressure to 0.15atm Insulation...

Embodiment 3

[0033] A temperature-resistant, flame-retardant and easily degradable resin, which is made of elastic hydroxyl resin and isocyanate curing agent according to the ratio of NCO / OH=1.1:1. The elastic hydroxyl resin is composed of the following components by weight: methyl vinyl dimethyl Oxysilane 31g, divinyldiethoxysilane 23g, diphenyldimethoxysilane 26g, methyltriethoxysilane 23g, phenyltrimethoxysilane 27g, resorcinol 39.98g, one Ethylene glycol 30g, monobutyl tin oxide 0.02g.

[0034] The preparation of the temperature-resistant flame-retardant easily degradable resin includes the following steps: 31g methylvinyldimethoxysilane, 23g divinyldiethoxysilane, 26g diphenyldimethoxysilane, 23g methyltrimethoxysilane Add ethoxysilane, 27g phenyltrimethoxysilane, 39.98g resorcinol, and 0.02g monobutyltin oxide into a reactor with a distillation condenser; heat up to 175°C, keep the temperature for dealcoholization for 2 hours, and then reduce Press down to 0.13atm for 2 hours of hea...

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Abstract

The invention discloses a temperature-resistant flame-retardant easily-degradable resin and a preparation method thereof. The temperature-resistant flame-retardant easily-degradable resin is made froman elastic hydroxyl resin and an isocyanate curing agent according to a ratio of NCO / OH=1.1-1.3: 1. The elastic hydroxyl resin is made from, by weight, 40-70% of difunctional siloxane, 5-25% of trifunctional siloxane, 18-45% of diphenol, 3-15% of polyol, and 0.01-0.1% of a catalyst. Since a benzene ring and silicon-oxygen unit chemical structure which is excellent in flame retardance and high-temperature stability is formed, the resin is excellent in stability when the resin is applied to a high-temperature environment. The formed Si-O-C bond is easy to hydrolyze and degrade, so that the resin is degradable when the resin is discarded. The resin is easy to be degraded into liquid micromolecules and is easy to be recycled.

Description

technical field [0001] The invention belongs to the technical field of organic composite temperature-resistant materials, and in particular relates to a temperature-resistant, flame-retardant and easily degradable resin and a preparation method thereof. Background technique [0002] In industrial applications, temperature-resistant materials are commonly used important materials. Organic composite heat-resistant materials have a wide range of uses in heat preservation, fire prevention, and heat insulation because they are easy to form and have good flexibility. Heat-resistant resin is the main component of organic composite heat-resistant materials, and its properties have an important impact on the performance of composite heat-resistant materials. Among them, improving the temperature resistance of resin by introducing aryl structure or silicone modification is one of the important methods. For example, the patent with publication number CN102675578A discloses an aryl po...

Claims

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Application Information

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IPC IPC(8): C08G18/61C08G77/16
CPCC08G18/61C08G77/16C08G77/80
Inventor 李博文谈珍胡进奔吴津成
Owner 中昊北方涂料工业研究设计院有限公司