CN114656637A - Carbon fiber filament/liquid metal liquid crystal elastomer composite material and preparation method thereof - Google Patents
Carbon fiber filament/liquid metal liquid crystal elastomer composite material and preparation method thereof Download PDFInfo
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- CN114656637A CN114656637A CN202210258280.0A CN202210258280A CN114656637A CN 114656637 A CN114656637 A CN 114656637A CN 202210258280 A CN202210258280 A CN 202210258280A CN 114656637 A CN114656637 A CN 114656637A
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- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 112
- 239000004997 Liquid crystal elastomers (LCEs) Substances 0.000 title claims abstract description 108
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 70
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 70
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000002131 composite material Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 56
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000004970 Chain extender Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 4
- 239000000178 monomer Substances 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 17
- 238000009210 therapy by ultrasound Methods 0.000 claims description 14
- HCZMHWVFVZAHCR-UHFFFAOYSA-N 2-[2-(2-sulfanylethoxy)ethoxy]ethanethiol Chemical compound SCCOCCOCCS HCZMHWVFVZAHCR-UHFFFAOYSA-N 0.000 claims description 9
- JOBBTVPTPXRUBP-UHFFFAOYSA-N [3-(3-sulfanylpropanoyloxy)-2,2-bis(3-sulfanylpropanoyloxymethyl)propyl] 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS JOBBTVPTPXRUBP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 7
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000005457 ice water Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- ISSYGWIDLYOJEN-UHFFFAOYSA-N [3-methyl-4-[4-(3-prop-2-enoyloxypropoxy)benzoyl]oxyphenyl] 4-(3-prop-2-enoyloxypropoxy)benzoate Chemical compound C=1C=C(OC(=O)C=2C=CC(OCCCOC(=O)C=C)=CC=2)C(C)=CC=1OC(=O)C1=CC=C(OCCCOC(=O)C=C)C=C1 ISSYGWIDLYOJEN-UHFFFAOYSA-N 0.000 claims description 5
- GYBSEXROTUAXFH-UHFFFAOYSA-N C(C=C)(=O)OCCCC1=CC=C(C(=O)OC2=C(C=C(C=C2)OC(C2=CC=C(C=C2)CCCOC(C=C)=O)=O)C)C=C1 Chemical compound C(C=C)(=O)OCCCC1=CC=C(C(=O)OC2=C(C=C(C=C2)OC(C2=CC=C(C=C2)CCCOC(C=C)=O)=O)C)C=C1 GYBSEXROTUAXFH-UHFFFAOYSA-N 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 4
- 238000013329 compounding Methods 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 abstract description 3
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/04—Polythioethers from mercapto compounds or metallic derivatives thereof
- C08G75/045—Polythioethers from mercapto compounds or metallic derivatives thereof from mercapto compounds and unsaturated compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a carbon fiber filament/liquid metal liquid crystal elastomer composite material and a preparation method thereof, wherein the liquid crystal elastomer composite material has a sandwich structure; the preparation method comprises the steps of dissolving an acrylate liquid crystal monomer, a cross-linking agent, a chain extender and liquid metal in a dichloromethane solution, adding a catalyst, obtaining a liquid metal liquid crystal elastomer material under a thermal initiation condition, and embedding carbon fiber yarns in a multi-layer material compounding mode to obtain the carbon fiber yarn/liquid metal liquid crystal elastomer composite material with a sandwich structure. The carbon fiber filament/liquid metal liquid crystal elastomer composite material prepared by the method has excellent mechanical properties, the tensile breaking strength of the composite material reaches 10.6MPa, the tensile elastic modulus of the composite material reaches 199.2MPa, and the composite material has great application value in practice and can be applied to the fields of soft brakes, micro-robots, artificial muscles and the like. The preparation method is simple and convenient, low in cost and easy to form and process.
Description
Technical Field
The invention relates to a liquid crystal elastomer composite material and a preparation method thereof, in particular to a carbon fiber filament/liquid metal liquid crystal elastomer composite material and a preparation method thereof.
Background
The Liquid Crystal Elastomer (LCE) is a novel intelligent material, has the elasticity of an elastomer material and the flowability and the orderliness of a liquid crystal material, and is a material with two-way shape memory. When being stimulated by external conditions, the liquid crystal elements change from the uniaxial-arranged anisotropic phase state to the disordered-arranged isotropic phase state, so that the material can generate reversible macroscopic deformation, and the material has wide application value in the fields of soft drivers and the like.
The carbon fiber yarn is a special fiber, has the characteristics of high temperature resistance, wear resistance, electric conduction, heat conduction, high tensile strength and the like, and can be used in the fields of industry, aerospace, textile and the like. Because the carbon fiber yarn has high strength and modulus, the carbon fiber yarn material can gradually replace most metal materials and is widely applied to the fields of national defense and military industry, high technology and the like.
The Liquid Metal (LM) is an indefinite-form and liquid-flowable metal material, has the properties of fluid and metal conductors, has the advantages of high electrical conductivity, thermal conductivity, good biocompatibility, unlimited deformability and the like, can be added into a high polymer material as a novel functional fluid filler to form a liquid metal high polymer material, and is widely applied to the fields of soft drivers, artificial muscles, intelligent wearable equipment and the like.
The reported liquid crystal elastomer composite materials have poor mechanical properties and are easy to damage. In addition, the preparation process is complicated, the complexity and the process cost of the preparation process are increased, the application of the liquid crystal elastomer material is limited, and the requirements of application in the fields of intelligent wearable equipment and the like cannot be met.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a carbon fiber wire/liquid metal liquid crystal elastomer composite material with a sandwich structure, which has light weight and excellent mechanical property; the invention also aims to provide a preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material, which has the advantages of mild reaction conditions, convenient operation and easy molding and processing.
The technical scheme is as follows: the carbon fiber wire/liquid metal liquid crystal elastomer composite material has a sandwich structure, wherein the middle layer is the carbon fiber wire, and the outer layer is the liquid metal liquid crystal elastomer material; the liquid metal liquid crystal elastomer material is a composite of liquid metal and a liquid crystal elastomer, and the structural formula of the liquid crystal elastomer is as follows:
formula I.
The preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) dissolving acrylate liquid crystal monomer 1, 4-bis- [4- (3-acryloyloxypropoxy) benzoyloxy ] -2-methylbenzene, cross-linking agent pentaerythritol tetrakis (3-mercaptopropionate), chain extender 3, 6-dioxa-1, 8-octane dithiol and liquid metal into dichloromethane solution, and uniformly mixing;
(2) adding a catalyst dipropylamine into the mixed solution, and performing ultrasonic treatment under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven for drying;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, and stretching to 2.3-2.6 times of the original length;
(7) flatly paving the carbon fiber yarns on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (3) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber wire in the step (7) at a parallel angle, and putting the carbon fiber wire/liquid metal liquid crystal elastomer composite material into a vacuum oven for drying to obtain the carbon fiber wire/liquid metal liquid crystal elastomer composite material with the sandwich structure.
Preferably, the molar ratio of pentaerythritol tetrakis (3-mercaptopropionate), 3, 6-dioxa-1, 8-octane dithiol and 1, 4-bis- [4- (3-acryloyloxypropoxy) benzoyloxy ] -2-methylbenzene in step (1) is 1:20 (21.8-22).
Preferably, the liquid metal component in step (1) is galliumw=71% indiumw=15%, tinw=13%, zincw= 1%; the liquid metal content is 1-25%.
Preferably, the sonication time in step (2) is 1 to 1.2 hours.
Preferably, the drying temperature in the step (4) is 38-42 ℃ and the drying time is 1.5-2 hours.
Preferably, the drying temperature in the step (8) is 38-42 ℃ and the drying time is 12-16 hours.
According to the carbon fiber filament/liquid metal liquid crystal elastomer composite material, the liquid metal is introduced, so that the liquid metal is liquid at normal temperature and has fluidity and biocompatibility, the liquid metal liquid crystal elastomer material is favorably prepared, and the mechanical property of the composite material can be remarkably improved.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: (1) the liquid crystal elastomer composite material prepared by the invention is characterized in that liquid metal is introduced in a physical doping mode to obtain a liquid metal liquid crystal elastomer material, and then carbon fiber wires are embedded in a multi-layer material compounding mode to obtain a carbon fiber wire/liquid metal liquid crystal elastomer composite material with a sandwich structure; the composite material solves the problems of poor mechanical properties and the like of the traditional liquid crystal elastomer composite material in practical application, the tensile breaking strength of the composite material reaches 10.6MPa, the tensile elastic modulus reaches 199.2MPa, and the composite material shows extremely excellent mechanical properties; meanwhile, the problems of other high process requirements and complicated process are avoided; (2) the preparation method has the advantages that the reaction conditions are mild, the preparation process is simple, the liquid crystal elastomer composite material is obtained by adopting a multi-layer material compounding mode, the operation is convenient, the cost is low, and the forming and processing are easy; (3) the liquid crystal elastomer composite material prepared by the invention has light weight (the weight is about 0.5 g) and simultaneously keeps excellent mechanical property.
Drawings
FIG. 1 is a schematic structural diagram of a carbon fiber filament/liquid metal liquid crystal elastomer composite;
FIG. 2 shows the structure of the compound used in the carbon fiber filament/liquid metal liquid crystal elastomer composite;
FIG. 3 is a graph showing the relationship between stress and strain of a carbon fiber filament/liquid metal liquid crystal elastomer composite.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The carbon fiber wire/liquid metal liquid crystal elastomer composite material has a sandwich structure, wherein the middle layer is the carbon fiber wire, and the outer layer is the liquid metal liquid crystal elastomer material; the liquid metal liquid crystal elastomer material is a composite of liquid metal and a liquid crystal elastomer, and the structural formula of the liquid crystal elastomer is shown as the formula I.
Example 1
The preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) 0.3788g of 1, 4-bis- [4- (3-acryloyloxypropoxy) benzoyloxy ] -2-methylbenzene, 0.0144g of pentaerythritol tetrakis (3-mercaptopropionate), 0.1075g of 3, 6-dioxa-1, 8-octane dithiol and 0.0051g of liquid metal were dissolved in a dichloromethane solution and mixed uniformly;
(2) adding 6.0 mu L of dipropylamine into the mixed solution, and carrying out ultrasonic treatment for 1 hour under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven, and drying for 2 hours at 39 ℃;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, stretching the long strips to be 2.5 times of the original length, putting the long strips into a 39 ℃ vacuum oven for 16 hours to obtain the liquid metal liquid crystal elastomer material, and measuring the tensile breaking strength to be 4.85 MPa;
(7) spreading the carbon fiber filaments on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (3) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber filaments in the step (7) at a parallel angle, and putting the carbon fiber filaments/liquid metal liquid crystal elastomer composite material into a 39-DEG C vacuum oven for 16 hours to obtain the carbon fiber filaments/liquid metal liquid crystal elastomer composite material with the sandwich structure.
Example 2
The preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) 0.3788g of 1, 4-bis- [4- (3-acryloyloxypropoxy) benzoyloxy ] -2-methylbenzene, 0.0144g of pentaerythritol tetrakis (3-mercaptopropionate), 0.1075g of 3, 6-dioxa-1, 8-octane dithiol and 0.0264g of liquid metal were dissolved in a dichloromethane solution and mixed uniformly;
(2) adding 6.0 mu L of dipropylamine into the mixed solution, and carrying out ultrasonic treatment for 1 hour under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven, and drying for 2 hours at 39 ℃;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, stretching the long strips to be 2.5 times of the original length, putting the long strips into a 39 ℃ vacuum oven for 16 hours to obtain the liquid metal liquid crystal elastomer material, and measuring the tensile breaking strength to be 8.02 MPa;
(7) spreading the carbon fiber filaments on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (5) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber filaments in the step (7) at a parallel angle, and putting the carbon fiber filaments/liquid metal liquid crystal elastomer composite material in a vacuum oven at 39 ℃ for 16 hours to obtain the carbon fiber filaments/liquid metal liquid crystal elastomer composite material with the sandwich structure.
Example 3
The preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) 0.3788g of 1, 4-bis- [4- (3-acryloyloxypropyl) benzoyloxy ] -2-methylbenzene, 0.0144g of pentaerythritol tetrakis (3-mercaptopropionate), 0.1075g of 3, 6-dioxa-1, 8-octane dithiol and 0.0556g of liquid metal were dissolved in a dichloromethane solution and mixed uniformly;
(2) adding 6.0 mu L of dipropylamine into the mixed solution, and carrying out ultrasonic treatment for 1 hour under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven, and drying for 1.5 hours at 40 ℃;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, stretching the long strips to be 2.5 times of the original length, putting the long strips into a vacuum oven at 40 ℃ for 14 hours to obtain the liquid metal liquid crystal elastomer material, and measuring the tensile breaking strength to be 5.31 MPa;
(7) flatly paving the carbon fiber yarns on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (3) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber filaments in the step (7) at a parallel angle, and putting the carbon fiber filaments/liquid metal liquid crystal elastomer composite material into a vacuum oven at 40 ℃ for 14 hours to obtain the carbon fiber filaments/liquid metal liquid crystal elastomer composite material with the sandwich structure.
Example 4
The preparation method of the carbon fiber filament/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) 0.3788g of 1, 4-bis- [4- (3-acryloyloxypropyl) benzoyloxy ] -2-methylbenzene, 0.0144g of pentaerythritol tetrakis (3-mercaptopropionate), 0.1075g of 3, 6-dioxa-1, 8-octane dithiol and 0.0884g of liquid metal were dissolved in a dichloromethane solution and mixed uniformly;
(2) adding 6.0 mu L of dipropylamine into the mixed solution, and carrying out ultrasonic treatment for 1 hour under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven, and drying for 1.5 hours at 40 ℃;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, stretching the long strips to be 2.5 times of the original length, putting the long strips into a vacuum oven at 40 ℃ for 14 hours to obtain the liquid metal liquid crystal elastomer material, and measuring the tensile breaking strength to be 6.73 MPa;
(7) spreading the carbon fiber filaments on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (5) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber filaments in the step (7) at a parallel angle, and putting the carbon fiber filaments/liquid metal liquid crystal elastomer composite material in a vacuum oven at 40 ℃ for 14 hours to obtain the carbon fiber filaments/liquid metal liquid crystal elastomer composite material with the sandwich structure.
Example 5
The preparation method of the carbon fiber yarn/liquid metal liquid crystal elastomer composite material comprises the following steps:
(1) 0.3788g of 1, 4-bis- [4- (3-acryloyloxypropyl) benzoyloxy ] -2-methylbenzene, 0.0144g of pentaerythritol tetrakis (3-mercaptopropionate), 0.1075g of 3, 6-dioxa-1, 8-octane dithiol and 0.1669g of liquid metal were dissolved in a dichloromethane solution and mixed uniformly;
(2) adding 6.0 mu L of dipropylamine into the mixed solution, and carrying out ultrasonic treatment for 1 hour under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven, and drying for 1.5 hours at 40 ℃;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, stretching the long strips to 2.5 times of the original length, putting the long strips into a vacuum oven at 40 ℃ for 14 hours to obtain the liquid metal liquid crystal elastomer material, and measuring the tensile breaking strength to be 4.87 MPa;
(7) flatly paving the carbon fiber yarns on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (3) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber filaments in the step (7) at a parallel angle, and putting the carbon fiber filaments/liquid metal liquid crystal elastomer composite material into a vacuum oven at 40 ℃ for 14 hours to obtain the carbon fiber filaments/liquid metal liquid crystal elastomer composite material with the sandwich structure.
As shown in fig. 1, a sandwich structure diagram of the carbon fiber filament/liquid metal liquid crystal elastomer composite material can be seen, wherein the upper layer and the lower layer are made of liquid metal liquid crystal elastomer materials, and the middle layer is made of carbon fiber filaments.
As shown in fig. 2, the structural formula of the acrylate liquid crystal monomer, the cross-linking agent, the chain extender and the catalyst used for preparing the carbon fiber filament/liquid metal liquid crystal elastomer composite material is shown.
As shown in fig. 3, the stress-strain curve diagram of the carbon fiber filament/liquid metal liquid crystal elastomer composite material with the liquid metal content of 5% shows that the tensile breaking strength of the composite material reaches 10.6MPa, the tensile elastic modulus reaches 199.2MPa, and the composite material has extremely excellent mechanical properties, and the liquid crystal elastomer composite material has light weight (about 0.5 g) and can also maintain excellent mechanical properties, which indicates that the introduction of the liquid metal and the embedding of the carbon fiber filament into the liquid crystal elastomer material can greatly enhance the mechanical properties of the material, so that the composite material has great practical application value, and can meet the application requirements in the fields of soft brakes, micro-robots, artificial muscles, and the like.
Claims (8)
1. The carbon fiber filament/liquid metal liquid crystal elastomer composite material is characterized in that the liquid crystal elastomer composite material is of a sandwich structure, wherein the middle layer is a carbon fiber filament, and the outer layer is a liquid metal liquid crystal elastomer material; the liquid metal liquid crystal elastomer material is a composite of liquid metal and a liquid crystal elastomer, and the structural formula of the liquid crystal elastomer is as follows:
2. a method for preparing the carbon fiber filament/liquid metal liquid crystal elastomer composite material according to claim 1, which comprises the following steps:
(1) dissolving acrylate liquid crystal monomer 1, 4-bis- [4- (3-acryloyloxypropyl) benzoyloxy ] -2-methylbenzene, cross-linking agent pentaerythritol tetra (3-mercaptopropionate), chain extender 3, 6-dioxa-1, 8-octane dithiol and liquid metal into dichloromethane solution, and uniformly mixing;
(2) adding a catalyst dipropylamine into the mixed solution, and performing ultrasonic treatment under the condition of ice-water mixing to obtain a uniformly mixed solution;
(3) pouring the mixed solution after ultrasonic treatment into a polytetrafluoroethylene groove, and removing a small amount of bubbles in the mixed solution;
(4) putting the groove into a vacuum oven for drying;
(5) taking out the groove to obtain a non-oriented liquid metal liquid crystal elastomer material;
(6) cutting the unoriented liquid metal liquid crystal elastomer material into long strips, and stretching to 2.3-2.6 times of the original length;
(7) spreading the carbon fiber filaments on the pre-crosslinked liquid metal liquid crystal elastomer material stretched in the step (6);
(8) and (3) finally, covering the stretched pre-crosslinked liquid metal liquid crystal elastomer material which is the same as that in the step (6) on the carbon fiber wire in the step (7) at a parallel angle, and putting the carbon fiber wire/liquid metal liquid crystal elastomer composite material into a vacuum oven for drying to obtain the carbon fiber wire/liquid metal liquid crystal elastomer composite material with the sandwich structure.
3. The method for preparing a carbon fiber filament/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the molar ratio of pentaerythritol tetrakis (3-mercaptopropionate), 3, 6-dioxa-1, 8-octane dithiol and 1, 4-bis- [4- (3-acryloyloxypropoxy) benzoyloxy ] -2-methylbenzene in step (1) is 1:20 (21.8-22).
4. The method for preparing a carbon fiber yarn/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the liquid metal in the step (1) comprises, by weight, 71% of gallium, 15% of indium, 13% of tin and 1% of zinc.
5. The method for preparing the carbon fiber yarn/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the content of the liquid metal in the step (1) is 1-25%.
6. The method for preparing a carbon fiber filament/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the ultrasonic time in the step (2) is 1 to 1.2 hours.
7. The method for preparing a carbon fiber filament/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the drying temperature in the step (4) is 38 to 42 ℃ and the drying time is 1.5 to 2 hours.
8. The method for preparing a carbon fiber filament/liquid metal liquid crystal elastomer composite material according to claim 2, wherein the drying temperature in the step (8) is 38-42 ℃ and the drying time is 12-16 hours.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142267A (en) * | 2022-07-22 | 2022-10-04 | 中国科学院苏州纳米技术与纳米仿生研究所 | High-power bidirectional-driven bionic muscle fiber, and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974347A (en) * | 2009-04-27 | 2015-10-14 | 株式会社普利司通 | Energy-ray-curable elastomer composition, material for gasket, gasket, and hard disk device |
| CN110799558A (en) * | 2017-06-26 | 2020-02-14 | 昭和电工株式会社 | Radical polymerizable resin composition and structure repair material |
| CN111607086A (en) * | 2020-05-27 | 2020-09-01 | 南雄中科院孵化器运营有限公司 | High-thermal-conductivity remoldable liquid crystal elastomer composite material and preparation method and application thereof |
| CN113527687A (en) * | 2021-07-01 | 2021-10-22 | 清华大学 | Liquid crystal elastomer, preparation method thereof and liquid crystal driving element |
| CN113527686A (en) * | 2021-07-01 | 2021-10-22 | 清华大学 | Preparation method of liquid crystal elastomer and liquid crystal driving element |
| CN113698518A (en) * | 2021-08-24 | 2021-11-26 | 东南大学 | Liquid crystal elastomer material based on liquid metal nano droplets |
-
2022
- 2022-03-16 CN CN202210258280.0A patent/CN114656637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104974347A (en) * | 2009-04-27 | 2015-10-14 | 株式会社普利司通 | Energy-ray-curable elastomer composition, material for gasket, gasket, and hard disk device |
| CN110799558A (en) * | 2017-06-26 | 2020-02-14 | 昭和电工株式会社 | Radical polymerizable resin composition and structure repair material |
| CN111607086A (en) * | 2020-05-27 | 2020-09-01 | 南雄中科院孵化器运营有限公司 | High-thermal-conductivity remoldable liquid crystal elastomer composite material and preparation method and application thereof |
| CN113527687A (en) * | 2021-07-01 | 2021-10-22 | 清华大学 | Liquid crystal elastomer, preparation method thereof and liquid crystal driving element |
| CN113527686A (en) * | 2021-07-01 | 2021-10-22 | 清华大学 | Preparation method of liquid crystal elastomer and liquid crystal driving element |
| CN113698518A (en) * | 2021-08-24 | 2021-11-26 | 东南大学 | Liquid crystal elastomer material based on liquid metal nano droplets |
Non-Patent Citations (1)
| Title |
|---|
| 侯燚: "碳纳米管／液晶弹性体复合材料的力学性能", 液晶与显示, vol. 37, no. 2, pages 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142267A (en) * | 2022-07-22 | 2022-10-04 | 中国科学院苏州纳米技术与纳米仿生研究所 | High-power bidirectional-driven bionic muscle fiber, and preparation method and application thereof |
| CN115142267B (en) * | 2022-07-22 | 2024-03-22 | 中国科学院苏州纳米技术与纳米仿生研究所 | High-power bi-directional driving bionic muscle fiber, and preparation method and application thereof |
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