A shape memory polymer material containing eucommia rubber and its preparation method

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 complicated preparation methods, large environmental pollution, and high cost, so as to expand the scope of application, improve mechanical properties, The effect of enhancing exercise capacity

Active Publication Date: 2021-12-14
QINGDAO UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • 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

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A shape memory polymer material containing eucommia rubber and its preparation method
  • A shape memory polymer material containing eucommia rubber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

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...

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
Login to view more

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
tear strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to view more

Abstract

The invention discloses a shape memory polymer material containing eucommia rubber and a preparation method thereof. The invention comprises the following raw materials in parts by weight: 100 parts of Eucommia rubber, 10-30 parts of functional filler, 0.5-3 parts of vulcanizing agent, and 0-5 parts of processing aid; Eucommia rubber is carboxyl-modified Eucommia rubber, and the functional filler is Any one or more of microcrystalline cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, starch, water-soluble chitin, and gelatin. The present invention also provides the preparation method of the above polymer material. In the present invention, the functional carboxyl group on the carboxyl-modified eucommia rubber reacts with the hydroxyl group on the surface of the functional filler, which not only can retain the thermally induced shape memory performance of the original matrix material, but also endows the polymer material with a strong resistance to water stimulation. Responsive function, so that the polymer material has the performance of synergistic response to dual stimuli of water and heat, which improves the mechanical properties and expands the scope of application.

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

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap