Triple shape memory cyanate ester and preparation method thereof

A technology of cyanate ester and cyanate ester prepolymer, which is applied in the field of shape memory polymer synthesis, can solve the problems of limiting the types of optional resins, the separation of glass transition peaks is not obvious, and the glass transition temperature range of resin is narrow. Triple shape memory performance, achieve selective shape recovery, achieve selective drive deformation effect
CN114806166AActive Publication Date: 2022-07-29HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2022-07-29

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Abstract

The invention provides triple shape memory cyanate ester and a preparation method thereof, and belongs to the technical field of shape memory polymer synthesis. The triple shape memory cyanate is prepared from the following components in parts by weight: 30 to 40 parts of cyanate prepolymer, 10 to 20 parts of epoxy resin, 10 to 20 parts of epoxy acrylate, 20 to 30 parts of acrylate and 2 to 5 parts of photoinitiator; the cyanate prepolymer and the epoxy resin are used for forming a thermal initiation polymerization network under thermal initiation, and the epoxy acrylate and the acrylate are used for forming a photo-initiation polymerization network under photo-initiation. According to the invention, an interpenetrating network structure is formed by using a thermal-initiated polymerization network structure and a photo-initiated polymerization network, and the reversible phases and the stationary phases of the two network structures are different and the distance between glass transition temperature peaks is far, so that mutual interference in multiple shape recovery processes is small, and excellent triple shape memory performance is ensured; and selective driving deformation and selective shape recovery can be realized.
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Description

technical field

[0001] The invention relates to the technical field of shape memory polymer synthesis, in particular to a triple shape memory cyanate ester and a preparation method thereof. Background technique

[0002] Shape memory polymers (SMPs) are a new class of smart materials with shape memory capabilities, that is, at the glass transition temperature, they are given a temporary shape, and the temporary shape is fixed by cooling, and can recover when subjected to external stimuli. to the initial shape, thus showing a memory function for the initial shape. Compared with shape memory alloys and shape memory ceramics, shape memory polymers have many advantages such as low density, large recoverable deformation, easy processing and forming, and adjustable deformation temperature, so they exist in flexible electronics, biomedicine, aerospace and other fields. Broad application prospects. The currently developed shape memory polymer materials are mainly dual shape memory ...

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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