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Shape memory material and preparation method thereof

A technology for memory materials and raw materials, applied in the field of shape memory materials and their preparation, can solve the problems that shape memory materials are not produced in large quantities, not commercially available, expensive manufacturing and processing costs, etc., and achieve excellent stability, fast recovery rate, The effect of improving low temperature impact performance

Inactive Publication Date: 2020-04-10
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The copolymers used are typically based on polyurethanes, polyethers, and polyesters; however, the combinations of copolymerized blocks for shape memory polymers are endless, and a large number of shape memory materials are not produced in large quantities and / or are not available. commercially obtained, resulting in expensive manufacturing processing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A shape memory material, comprising the following raw materials in parts by weight:

[0034] 3 parts of trans-1,4-polyisoprene rubber, 2 parts of acrylate rubber, 3 parts of surfactant, 1 part of thermoreversible crosslinking agent, 2 parts of acetic acid, 0.9 parts of sodium stearate, polynorborneol 10 parts of alkene, 23 parts of styrene-butadiene block copolymer, 0.8 parts of dioctyl phthalate, 2 parts of tribasic lead sulfate, 8 parts of polyethylene wax, 40 parts of polyvinyl chloride, polylysine 3 parts of acid, 4 parts of silicon dioxide, 3 parts of silane coupling agent, 7 parts of silicon oxynitride, 0.7 parts of zinc oxide.

[0035] The thermally reversible crosslinking agent is sodium dicyclopentadiene dicarboxylate, which can react with active chlorine to make it crosslinked at low temperature, thereby improving the deformation recovery rate of the material relatively easily, and decrosslinking at high temperature, making the material Regain processing flui...

Embodiment 2

[0046] A shape memory material, comprising the following raw materials in parts by weight:

[0047]2 parts of trans-1,4-polyisoprene rubber, 3 parts of acrylate rubber, 1 part of surfactant, 2 parts of thermoreversible crosslinking agent, 1 part of acetic acid, 1.5 parts of sodium stearate, polynorborneol 5 parts of alkene, 30 parts of styrene-butadiene block copolymer, 0.5 parts of dioctyl phthalate, 3 parts of tribasic lead sulfate, 5 parts of polyethylene wax, 50 parts of polyvinyl chloride, polylysine 1 part of acid, 6 parts of silicon dioxide, 1 part of silane coupling agent, 10 parts of silicon oxynitride, 0.4 part of zinc oxide.

[0048] The thermally reversible crosslinking agent is potassium dicyclopentadiene dicarboxylate.

[0049] The model of polyvinyl chloride is SG-1.

[0050] The surfactant is cetyltrimethylammonium bromide.

[0051] The preparation method of the above-mentioned shape memory material comprises the following steps:

[0052] (1) heating and me...

Embodiment 3

[0058] A shape memory material, comprising the following raw materials in parts by weight:

[0059] 4 parts of trans-1,4-polyisoprene rubber, 1 part of acrylate rubber, 5 parts of surfactant, 0.5 part of thermoreversible crosslinking agent, 3 parts of acetic acid, 0.1 part of sodium stearate, polynorborneol 15 parts of vinylene, 15 parts of styrene-butadiene block copolymer, 1 part of dioctyl phthalate, 1 part of tribasic lead sulfate, 10 parts of polyethylene wax, 30 parts of polyvinyl chloride, polylysine 5 parts of acid, 3 parts of silicon dioxide, 5 parts of silane coupling agent, 4 parts of silicon oxynitride, and 1.0 part of zinc oxide.

[0060] The thermally reversible crosslinking agent is sodium dicyclopentadiene dicarboxylate.

[0061] The model of polyvinyl chloride is SG-5.

[0062] The surfactant is sodium laurylalanine.

[0063] The preparation method of the above-mentioned shape memory material comprises the following steps:

[0064] (1) heating and melting ...

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PUM

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Abstract

The invention discloses a shape memory material and a preparation method thereof, and belongs to the technical field of high polymer materials, wherein the material comprises the following raw materials: trans-1,4-polyisoprene rubber, acrylate rubber, a surfactant, a thermally reversible crosslinking agent, acetic acid, sodium stearate, polynorbornene, a styrene-butadiene block copolymer, dioctylphthalate, tribasic lead sulfate, polyethylene wax, polyvinyl chloride, polylysine, silicon dioxide, a silane coupling agent, silicon oxynitride and zinc oxide. The shape memory material provided by the invention is strong in self-repairing capability, high in recovery rate and excellent in stability, and along with the increase of recovery times, the shape memory capability of the product prepared by the invention is not changed and the product can be repeatedly utilized.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a shape memory material and a preparation method thereof. Background technique [0002] Shape memory materials are composite materials that assume at least two configurations, one configuration being a distinct permanent shape and the other configuration being a temporary or fixed shape. Temporary or fixed shapes form or attenuate the most common thermal transitions, such as glass transition or melting. The temporary shape is achieved by exposing the shape memory material to an external stimulus, most commonly heat, so that the components of the shape memory material exist above their transition temperature (rubbery or molten state). Deformation in the rubbery or molten state and subsequent cooling at the transition temperature under the applied stress fixes the temporary shape by vitrification or crystallization of the rubbery or molten shape memory material component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L53/02C08L9/00C08L33/04C08L45/00C08K13/02C08K3/36C08K3/22C08K5/12C08K3/34
CPCC08K2003/2296C08K2201/011C08L27/06C08L2201/08C08L2201/12C08L53/02C08L9/00C08L33/04C08L45/00C08K13/02C08K3/36C08K3/22C08K5/12C08K3/34
Inventor 张军瑞谢君史达吴俊峰何振威
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY