Controlled release microcapsule for adhesive and preparation method thereof

A technology for adhesives and microcapsules, which is applied in the field of controllable release microcapsules for adhesives and its preparation, can solve the problems of poor monodispersity, low loading efficiency, and low stability of microcapsules, and achieve good stability, The effect of high load rate and easy operation
CN109939622AActive Publication Date: 2019-06-28SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2019-06-28

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Abstract

The invention relates to a controlled release microcapsule for an adhesive and a preparation method thereof. The preparation method comprises the following steps: S1, mixing inner phase liquid drops with middle phase liquid drops to obtain emulsified liquid drops, wherein the middle phase wraps the inner phase; S2, mixing the emulsified liquid drops with the outer phase liquid drops to obtain double emulsified liquid drops, wherein the outer phase liquid drops wrap the emulsified liquid drops; and S3, curing the double emulsified liquid drops, flushing, filtering and drying the liquid drops toobtain the controlled release microcapsule for the adhesive, wherein the inner phase is a solution containing a substance 1 capable of initiating a crosslinking reaction, the middle phase is a solution containing a substance 2 capable of being cured directly and a surfactant, the outer phase is a liquid containing a surfactant 2, and the inner and outer phases are not dissoluble to the middle phase. By way of double emulsion to form the liquid drops to further obtain the microcapsule, the preparation method is simple in process, easy to operate and low in cost. The prepared microcapsule can be flexibly controlled in dimension, shell thickness and monodispersity, and is good in monodispersity and good in stability.
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Description

technical field

[0001] The invention belongs to the technical field of adhesives, and in particular relates to a controllable-release microcapsule for adhesives and a preparation method thereof. Background technique

[0002] Adhesives are widely used in the construction industry, wood industry, shoe industry, paper products and packaging, automotive electronics industry and other fields. They are easy to use and have high economic benefits, and play an important role in industrial production and daily life. However, at present, it is mainly based on direct coating and gluing of a single-component adhesive to achieve bonding, or multiple components are mixed and cross-linked to achieve bonding. This is very unfavorable for processes that require large-area bonding or require flexible bonding. Therefore, people have proposed a controllable method of cross-linking and bonding that can only occur under specific conditions-microcapsule technology. Microcapsule technology refers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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