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Shape memory high polymer material with eucommia ulmoides rubber and preparation method of shape memory high polymer material

A technology of polymer materials and eucommia rubber, which is applied in the field of shape memory polymer materials containing eucommia rubber and its preparation, can solve the problems of complex preparation methods, high cost, and large environmental pollution, so as to expand the scope of application and enhance sports ability , Improve the effect of mechanical properties

Active Publication Date: 2019-12-20
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a shape-memory polymer material containing eucommia rubber and its preparation method, aiming to solve the problem of the prior art in which the shape-memory polymer material realizes shape recovery is single and the preparation method is complex, high in cost, and pollutes the environment. Problems that are large and difficult to achieve large-scale production

Method used

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  • Shape memory high polymer material with eucommia ulmoides rubber and preparation method of shape memory high polymer material
  • Shape memory high polymer material with eucommia ulmoides rubber and preparation method of shape memory high polymer material

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preparation example Construction

[0027] A preparation method of a shape-memory polymer material containing eucommia rubber of the present invention comprises the following steps:

[0028] Mixing process, in the double-roller mill, adjust the roller temperature to 90-130°C, add Eucommia rubber, wrap the roller; after it is completely wrapped evenly, add functional fillers, and mix; after mixing evenly, add Processing aid, thin pass 3-5 times left and right; add vulcanizing agent, thin pass 3-5 times left and right; adjust the roller distance to 1-3mm, and unload the film; park for 18-24h, re-melt, thin pass 3-5 times; The roller distance is adjusted to 1-3mm, and the film is lowered;

[0029] Vulcanization process, the vulcanization temperature is 150-160°C, and the vulcanization time is 20-30min to obtain polymer materials.

[0030] Preferably, in the mixing process, the wrapping time is 4-10 minutes.

[0031] Further, in the mixing process, the mixing time is 4-10 minutes.

[0032] Specifically, in the mi...

Embodiment 1

[0034] A preparation method of a shape-memory polymer material containing eucommia rubber of the present invention comprises the following steps:

[0035] 1) Weigh the following raw materials in parts by weight in turn: 100 parts of carboxy-modified Eucommia rubber (EUG-COOH), 30 parts of microcrystalline cellulose (MCC), 0.5 parts of vulcanizing agent DCP, 5 parts of processing aids, including 2 parts of antioxidant MB and 3 parts of compatibilizer;

[0036] 2) Mixing process. In the double-roller mill, adjust the roll temperature to 90°C, add EUG-COOH, and cover the rolls; after it is completely covered with rolls, add functional filler—MCC, and mix; After uniformity, add processing aids - compatibilizer polycyclooctene and anti-aging agent MB, thin pass 3 times left and right; add vulcanizing agent - dicumyl peroxide (DCP), thin pass 3 times left and right; adjust roller When the gap is 1.7mm, the next film is parked for 24 hours, re-smelting, thin pass 5 times; the roller...

Embodiment 2

[0039] A preparation method of a shape-memory polymer material containing eucommia rubber of the present invention comprises the following steps:

[0040] 1) Weigh the following raw materials in order by weight: 100 parts of carboxy-modified eucommia rubber (EUG-COOH), 10 parts of hydroxyethyl cellulose, 1.0 parts of vulcanizing agent-sulfur, 1 part of processing aid, including 1 part of anti-aging agent MB, the modification ratio of carboxyl-modified Eucommia rubber is 1%, that is, the carboxyl content in the carboxyl-modified Eucommia rubber is 1%;

[0041] 2) Mixing process. In the double-roller mill, adjust the roll temperature to 130°C, add carboxy-modified Eucommia rubber, wrap the roll, and wrap the roll for 4 minutes; after it is completely wrapped evenly, add functional fillers— -Hydroxyethyl cellulose, mixing, mixing time is 4min; after mixing evenly, add processing aid - anti-aging agent MB, and pass 5 times left and right; add vulcanizing agent - sulfur, pass 5 tim...

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Abstract

The invention discloses a shape memory high polymer material with eucommia ulmoides rubber and a preparation method of the shape memory high polymer material. The shape memory high polymer material comprises the following raw materials in parts by weight: 100 parts of eucommia ulmoides rubber, 10-30 parts of a functional filler, 0.5-3 parts of a vulcanizing agent and 0-5 parts of a processing aid,wherein the eucommia ulmoides rubber is carboxyl modified eucommia ulmoides rubber; and the functional filler is one or more of microcrystalline cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, starch, water-soluble chitin and gelatin. The invention further discloses the preparation method of the high polymer material. Through a hydroxyl reaction of functionalcarboxyl on the carboxyl modified eucommia ulmoides rubber with the surface of the functional filler, not only is a thermotropic shape memory property of a conventional base material retained, but also the high polymer material has a function of responding to water stimulation, the high polymer material has a property of synergetic response to dual stimulation of water and heat, mechanical properties can be improved, and the application range can be widened.

Description

technical field [0001] The invention belongs to the technical field of shape-memory polymer materials, in particular to a shape-memory polymer material containing eucommia rubber and a preparation method thereof. Background technique [0002] Shape memory material is a new type of intelligent material. When the initial shape obtained by one-time molding is processed into a temporary shape, it can "memorize" the original shape and restore the original shape under the action of external stimuli. Its shape memory function. Shape memory polymer (SMP) is an important branch of shape memory materials. There are many external stimuli that trigger the shape memory effect, such as light, electricity or chemical treatment. For example, azobenzene changes from a trans structure to a cis structure under ultraviolet light, causing the material to shrink, and then changes to a trans structure after the light is stopped. Compared with traditional shape memory materials, shape memory pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L13/00C08L1/04C08L45/00C08L1/28C08L89/00C08L3/02C08L5/08C08K13/02C08K3/06C08K3/22C08K5/14C08K5/37C08K5/09
CPCC08L13/00C08L2201/12C08L2205/03C08L2205/035C08K2003/2296C08L1/04C08L45/00C08K5/14C08K5/37C08L1/284C08K3/06C08L3/02C08L89/00C08K13/02C08K3/22C08K5/09C08L5/08
Inventor 夏琳邱桂学辛振祥
Owner QINGDAO UNIV OF SCI & TECH
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