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Epoxypropoxy end capped polyether and phenyl comodified polysiloxane, and preparation and use thereof

A glycidoxypropyl sealing and polysiloxane technology, which is applied in the fields of fine chemicals and new silicone materials, can solve the problems of insufficient cracking resistance, impact resistance and toughness, and limit wide application, and achieves broad application prospects, The effect of promoting industrial development

Inactive Publication Date: 2007-06-20
山东大易化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are only research reports on the synthesis and properties of hydroxypropyl-terminated polysiloxane in the chemical industry, and the polysiloxane co-modified by glycidoxypropyl-terminated polyether and phenyl side chains is not involved in the report. The synthesis and application of the epoxy resin industry in my country is playing an increasingly important role in the construction of the national economy. It is an industry that the country will vigorously develop and apply at present and in the future. The biggest shortcoming of epoxy resin after curing is Crack resistance, impact resistance and toughness are insufficient. This shortcoming once limited its wide application and further development. According to the characteristics of different industries, selecting suitable multi-adaptive modifiers to improve its shortcoming is a hot research at present and in the future in China. and applied subjects

Method used

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  • Epoxypropoxy end capped polyether and phenyl comodified polysiloxane, and preparation and use thereof
  • Epoxypropoxy end capped polyether and phenyl comodified polysiloxane, and preparation and use thereof
  • Epoxypropoxy end capped polyether and phenyl comodified polysiloxane, and preparation and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1, a kind of chemical substance of glycidoxypropyl-terminated polyether and phenyl co-modified polysiloxane, the structural formula of this substance is:

[0034]

[0035] In the formula: R=-C 3 h 6 O(C 2 h 4 O) 3～10 (C 3 h 6 O) 3～10 CH 3 , a=2~3, b=2~3, c=2~3, the substance is prepared by the following method: first, tetramethylhydrogendisiloxane, methyl polyether siloxane tetracyclic body, methyl Phenylsiloxane tetracyclic body and octamethylcyclotetrasiloxane are measured according to the molar ratio in the chemical reaction equation, and then added into the reaction kettle in turn, start stirring, and add according to the amount of 1-10% of the total mass of the reactants Strongly acidic styrene resin catalyst, heat up to 50-130°C, keep stirring at normal pressure for 5-20 hours, then drop to below 50°C and filter to remove the catalyst, move the filtrate to a vacuum tank, and keep the temperature below 133Kpa at 100- Remove low-molecular subs...

Embodiment 2

[0041] Embodiment 2, a kind of preparation method of glycidoxypropyl end-capped polyether and phenyl co-modified polysiloxane, is first tetramethyl hydrogen disiloxane, methyl polyether siloxane four The cyclic body, methylphenylsiloxane tetracyclic body, and octamethylcyclotetrasiloxane are measured according to the molar ratio in the chemical reaction equation, and then added to the reactor in sequence, and the stirring is started. According to the total mass number of reactants 1- Add a strong acidic styrene resin catalyst in an amount of 10%, then raise the temperature to 50-130°C, keep stirring at normal pressure for 5-20 hours, then drop to below 50°C and filter to remove the catalyst, move the filtrate to a vacuum tank, and put it under a pressure of 133Kpa Remove the low molecular weight at 100-150°C for 3-10 hours at the following temperature to obtain the intermediate hydrogen-terminated polyether and phenyl co-modified siloxane. The low molecular weight can be reused...

Embodiment 3

[0047] Embodiment 3, a kind of preparation method of glycidoxypropyl end-capped polyether and phenyl co-modified polysiloxane, is first tetramethyl hydrogen disiloxane, methyl polyether siloxane four The cyclic body, methylphenylsiloxane tetracyclic body, and octamethylcyclotetrasiloxane are measured according to the molar ratio in the chemical reaction equation, and then added to the reactor in sequence, and the stirring is started. According to the total mass number of reactants 1- Add a strong acidic styrene resin catalyst in an amount of 10%, then raise the temperature to 50-130°C, keep stirring at normal pressure for 5-20 hours, then drop to below 50°C and filter to remove the catalyst, move the filtrate to a vacuum tank, and put it under a pressure of 133Kpa Remove the low molecular weight at 100-150°C for 3-10 hours at the following temperature to obtain the intermediate hydrogen-terminated polyether and phenyl co-modified siloxane. The low molecular weight can be reused...

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Abstract

An epoxy propyl capped polyether and phenyl modified silicone, its production and use are disclosed. Its advantages include excellent anti-cracking and anti-impact performances and toughness, better hydrophilic and oleophilic properties and antistatic performance. It can be used in polyurethane industry as organic silicon special surface active agent and in textile industry as finishing softening agent.

Description

1. Technical field [0001] The invention belongs to the technical fields of fine chemical industry and organic silicon new materials, and in particular relates to a polysiloxane co-modified with glycidoxypropyl-terminated polyether and phenyl, a preparation method and application thereof. 2. Background technology [0002] At present, there are only research reports on the synthesis and properties of hydroxypropyl-terminated polysiloxane in the chemical industry, and the polysiloxane co-modified by glycidoxypropyl-terminated polyether and phenyl side chains is not involved in the report. The synthesis and application of the epoxy resin industry in my country is playing an increasingly important role in the construction of the national economy. It is an industry that the country will vigorously develop and apply at present and in the future. The biggest shortcoming of epoxy resin after curing is Crack resistance, impact resistance and toughness are insufficient. This shortcoming ...

Claims

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Application Information

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IPC IPC(8): C08G77/38C08G77/46C08G18/83C08G59/14D06M15/647
Inventor 孙会易张国杰
Owner 山东大易化工有限公司
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