CN106832940A - The moulding shape-memory material of room temperature - Google Patents
The moulding shape-memory material of room temperature Download PDFInfo
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- CN106832940A CN106832940A CN201710060064.4A CN201710060064A CN106832940A CN 106832940 A CN106832940 A CN 106832940A CN 201710060064 A CN201710060064 A CN 201710060064A CN 106832940 A CN106832940 A CN 106832940A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/12—Shape memory
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- C—CHEMISTRY; METALLURGY
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Abstract
The present invention relates to a kind of moulding shape-memory material of room temperature.The material is prepared from by elastomeric polymer materials and transformation gathering compound material, and the blending of addO-on therapy material;The elastic polymer material can make the material after blending possess elasticity, the transformation gathering compound can make the material after blending have a thermal drivers shape memory characteristic, and the elastic performance and material softening that the addO-on therapy material can adjust material after blending are cooled to the crystallization rate after transition temperature again;The transition temperature of the material after blending is 50 90 DEG C, and the moulding firm time at 5 DEG C 60 DEG C is 0 30 min, elastic modelling quantity 0.05 100 MPa of the material in 30 100 DEG C of temperature ranges.Material of the invention has the shape memory characteristic of thermal drivers, at ambient temperature can be with moulding fixed temporary shapes after transition temperature above and below all has excellent resilience, and heated softening.
Description
Technical field
The present invention relates to a kind of composition of shape-memory material, and in particular to a kind of moulding shape-memory material of room temperature.
Background technology
Shape-memory polymer as a class intellectual material, with being returned from temporary shapes in the presence of certain environmental stimuli
The function of its original-shape is arrived again.This environmental stimuli is including heat, light, electricity, magnetic, solvent etc., wherein being gathered with thermal shape memory
The research of compound and it is most widely used.Shape-memory polymer typically has two parts in structure:A part is elasticity
Phase;A part is can anti-phase.
In the preparation process of thermal shape memory, usually first polymer be heated to its can anti-phase transformation temperature
Degree (Ttrans) more than make material softening, and applying external force deforms it;Then maintain to be cooled to transition temperature under external force effect
TtransBelow (usually room temperature), so maintenance is appointed in deformation after external force is removed, and shape now is referred to as temporary shapes.When temperature again
It is secondary to be increased to TtransMore than, material is returned to original-shape again.It is noted that when fixed temporary shapes, generally requiring liter
Height arrives reversible phase transition temperature TtransApplying external force above deforms it.But this transition temperature TtransGenerally all it is above
The suitable temperature range of human body (20-60 DEG C), this is just for the application of material brings limitation.If material is cooled to room after the heating
Warm left and right can also apply external force to be deformed it and fixes temporary shapes, i.e., with the moulding function of room temperature, this can just expand material
Range of application, is particularly properly applied to human body, such as wearable material.
Simultaneously it was noted that most thermal shape memory polymer, (temperature is higher than transformation phase temperature T at high temperaturetrans)
There is good elasticity, but in low temperature, (temperature is less than transformation phase temperature Ttrans) under material it is harder or easily it is cataclasm, if make
It is wearable material, its comfort type can not meet human body requirements.In order to solve the problems, such as wearing comfort, there is a class low resilience to remember
The material (CN101298490A, CN103030782A, CN103937199A, CN104193954A) of sponge, this kind of material is main
Be directed to general sponge moment it is least improved, natural resilience produces buffer stage under human body temperature, will not be right
Human body produces reaction force.But its in use temporary shapes can not maintain, original-shape can be gradually returned to.
Patent document CN101985518A describes a kind of shape-memory polymer with rubber-like elasticity, and it is in height
All there is good elasticity under temperature, but it does not have the moulding function of room temperature.Therefore it is a kind of that there is room temperature plasticity, and make
The rubber-like elasticity shape-memory material of shape can be maintained during as a kind of application demand of people.
The content of the invention
Can make the material in the moulding shape-memory material of room temperature it is an object of the invention to provide after a kind of heating and softening
In transition temperature (Ttrans) above and below all has excellent resilience, and the shape memory characteristic with thermal drivers, and pass through
At ambient temperature can be with moulding fixed temporary shapes after heating and softening.
First kind scheme of the invention is:The moulding shape-memory material of the room temperature, is polymerized by the elastomer of 10-90 weight portions
The transformation gathering compound material of thing material and 10-90 weight portions, and 0-80 weight portions addO-on therapy material blending (including height
Warm melt blending, solution blending volatilizees again and molten/liquation permeates etc.) be prepared from;The elastic polymer material can make altogether
Material after mixed possesses elasticity, and the transformation gathering compound can make the material after blending have thermal drivers shape memory characteristic,
The elastic performance and material softening that the addO-on therapy material can adjust material after being blended are cooled to the knot after transition temperature again
Brilliant speed;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 0-30min,
Elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.05-100MPa.
The elastomer polymer, is that (its type includes one pack system and double-component silicon to organic silica gel, and curing mode includes
Heat cure, water/humidity cure and photocuring etc.), one or more in ionomer (such as Nafion) of combination.
The transformation gathering compound is in polycaprolactone, PLA, thermoplastic or heat-curable urethane these polymer
Plant or various combinations.
The addO-on therapy can be one or more combination in following material:Polypropylene, polyethylene, polyvinyl acetate
Ester, ethylene-vinyl acetate copolymer, sodium succinate, Sodium glutarate, sodium n-caproate, Sodium Benzoate, p t butylbenzoic acid aluminium, mountain
Pears 01 derivatives, organic phosphate, paraffin, talcum powder, carbon black, kaolin, calcium carbonate, silica, titanium dioxide.
Preferably, the elastomer polymer is organic double-component silicon of weight portion 40-80, and transformation gathering compound is attached most importance to
The polycaprolactone of amount part 10-50, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending is 50-90
DEG C, the moulding firm time at -5 DEG C -60 DEG C is 1-20min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is
0.1-25MPa。
Preferably, the elastomer polymer is organic double-component silicon of weight portion 40-80, and transformation gathering compound is attached most importance to
The polyurethane of amount part 10-50, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending is 50-90 DEG C,
Moulding firm time at -5 DEG C -60 DEG C is 1-20min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is
0.1-25MPa。
Preferably, the elastomer polymer is organic double-component silicon of weight portion 40-80, and transformation gathering compound is attached most importance to
The PLA of amount part 10-50, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending is 50-90 DEG C,
Moulding firm time at -5 DEG C -60 DEG C is 1-20min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is
0.1-25MPa。
Preferably, the elastomer polymer is organic one pack system silica gel of weight portion 40-80, and transformation gathering compound is attached most importance to
The polyurethane of amount part 10-50, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending is 50-90 DEG C,
Moulding firm time at -5 DEG C -60 DEG C is 1-30min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is
0.1-50MPa。
Preferably, the elastomer polymer is the Nafion of weight portion 40-80, the transformation gathering compound amount of attaching most importance to part 10-
50 polyurethane, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending be 50-90 DEG C, -5 DEG C -
Moulding firm time at 60 DEG C is 1-30min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.05-
30MPa。
Equations of The Second Kind scheme of the invention is:The moulding shape-memory material of the room temperature, by a kind of single of 50-100 weight portions
The addO-on therapy of polymer and 0-50 weight portions is combined and obtains;The structure of wherein single polymers is by the bullet of 10-90 weight portions
Property segment and 10-90 weight portions reversible segment composition, the elastomeric segments and reversible segment are anti-by the chemistry each having
Functional group is answered to be combined by free radical initiation or light initiating polymerizing reaction;The reversible segment can make the material have thermal drivers
Shape memory characteristic, even if the temporary shapes of material can with after heated softening in -5 DEG C of -60 DEG C of moulding hardening;The elasticity
Segment can make material possess elasticity;The addO-on therapy material can adjust the elastic performance of material and at -5 DEG C -60 DEG C
Moulding setting rate;The transition temperature of material is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-30min, material
Expect that the elastic modelling quantity in -30-100 DEG C of temperature range is 0.05-100MPa.
The structure of the elastomeric segments is the combination of a kind of block or various blocks in following structure:Silastic structure chain
Section, natural rubber segment, polyurethane segment, propene-1-butene block, s-B-S block.
The structure of the reversible segment is the combination of a kind of block or various blocks in following structure:Polycaprolactone chain
It is section, polylactic acid chain segment, polyethylene segment, vinyl chloride segment, polyethylene glycol segment, polyoxyethylene segment, polyvinyl alcohol segments, poly-
Tetrahydrofuran segment, poly- bornylene segment, polyurethane segment.
The addO-on therapy can be one or more combination in following material:Polypropylene, polyethylene, polyvinyl acetate
Ester, ethylene-vinyl acetate copolymer, sodium succinate, Sodium glutarate, sodium n-caproate, Sodium Benzoate, p t butylbenzoic acid aluminium, mountain
Pears 01 derivatives, organic phosphate, paraffin, talcum powder, carbon black, kaolin, calcium carbonate, silica, titanium dioxide.
Preferably, the structure of the elastomeric segments is weight portion 40-80 silicon rubber segments, and reversible segment is weight portion 10-
50 polycaprolactone segment, the addO-on therapy parts by weight are 0-40;The transition temperature of the material after blending is 50-90 DEG C,
Moulding firm time at -5 DEG C -60 DEG C is 1-30min, and elastic modelling quantity of the material in -30-100 DEG C of temperature range is
0.1-25MPa。
Advantages of the present invention is with effect:
1st, the moulding shape memory rubber body of this room temperature, it all has rubber equally excellent in the range of -30-100 DEG C
Elastic performance, it is ensured that the comfortableness demand of human body during materials application.
2nd, the moulding shape memory rubber body of this room temperature has a good shape memory, and with room temperature it is moulding the characteristics of,
Both after heating and softening, room temperature can be cooled to and applies the fixed temporary shapes of constraint, complete hardening, it is to avoid general shape memory polymers
Need to fix temporary shapes, the defect of the excessive temperature (>=60 DEG C) suitable more than human body in higher temperatures.
Specific embodiment
Technical scheme is further explained with reference to the room temperature of specific embodiment moulding shape-memory material
State.
Embodiment 1
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 80;Transformation gathering compound is selected and gathered in oneself
Ester, parts by weight are 15;AddO-on therapy selects polyethylene, and parts by weight are 3.5, and talcum powder, parts by weight are 1.5.
Preparation method is:(1) by the liquid-state silicon gel part of the bi-component thermosetting silica gel of corresponding parts by weight, polycaprolactone,
Three kinds of materials of polyethylene, are heated to 120 DEG C and melt completely;(2) it is sufficiently stirred for being well mixed it, milky is presented;(3) cool down
To room temperature (20-25 DEG C);(4) cross-linker moiety of bi-component thermosetting silica gel is added, is well mixed, and pour into mould;(5) true
Under empty condition, the gas in removing mixture;(6) 100 DEG C of heating 1h make mixture solidification obtain elastomeric material.
Up to 75%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
2.99MPa。
Embodiment 2
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 80;Transformation gathering compound is selected and gathered in oneself
Ester, parts by weight are 20;No added component.
Preparation method is repeated no more with reality embodiment 1.
Up to 70%, response rate reaches 90% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.26MPa。
Embodiment 3
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 70;Transformation gathering compound is selected and gathered in oneself
Ester, parts by weight are 30;No added component.
Preparation method is repeated no more with reality embodiment 1.
Up to 80%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.18MPa。
Embodiment 4
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 70;Transformation gathering compound is selected and gathered in oneself
Ester, parts by weight are 29;AddO-on therapy glutaric acid, parts by weight 1.
Preparation method is repeated no more with reality embodiment 1.
Up to 80%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.21MPa。
Embodiment 5
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 35;AddO-on therapy polyvinyl acetate, parts by weight 3, sodium n-caproate, parts by weight 2.
Preparation method is repeated no more with reality embodiment 1.
Up to 80%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.22MPa。
Embodiment 6
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 10;AddO-on therapy selects polyethylene, and parts by weight are 30.
Preparation method is repeated no more with reality embodiment 1.
Up to 70%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.34MPa。
Embodiment 7
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 20;AddO-on therapy selects ethylene-vinyl acetate copolymer, and parts by weight are 20.
Preparation method is repeated no more with reality embodiment 1.
Up to 70%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.28MPa。
Embodiment 8
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 30;AddO-on therapy selects polypropylene, and parts by weight are 10.
Preparation method is repeated no more with reality embodiment 1.
Up to 70%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.42MPa。
Embodiment 9
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 40;No added component.
Preparation method is repeated no more with reality embodiment 1.
Up to 90%, response rate reaches 98% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
6.08MPa。
Embodiment 10
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 55;Transformation gathering compound selects PLA,
Parts by weight are 10;AddO-on therapy selects polypropylene, and parts by weight are 35.
Preparation method is repeated no more with reality embodiment 1.
Up to 60%, response rate reaches 90% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.23MPa。
Embodiment 11
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 50;Transformation gathering compound selects PLA,
Parts by weight are 20;AddO-on therapy selects polyethylene, and parts by weight are 30.
Preparation method is repeated no more with reality embodiment 1.
Up to 70%, response rate reaches 90% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
0.62MPa。
Embodiment 12
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 45;Transformation gathering compound selects PLA,
Parts by weight are 30;AddO-on therapy selects polyvinyl acetate, and parts by weight are 25.
Preparation method is repeated no more with reality embodiment 1.
Up to 85%, response rate reaches more than 98%, elastic modelling quantity to the shape fixed rate of the present embodiment gained elastomeric material
It is 0.71MPa.
Embodiment 13
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 40;Transformation gathering compound selects polyurethane,
Parts by weight are 40;AddO-on therapy selects ethylene-vinyl acetate copolymer, and parts by weight are 20.
Preparation method is repeated no more with embodiment 1.The shape fixed rate of the present embodiment gained elastomeric material reaches
85%, response rate reaches more than 98%, and elastic modelling quantity is 0.47MPa.
Embodiment 14
Elastomer polymer selects two part heat cured silica gel, and parts by weight are 60;Transformation gathering compound selects polyurethane,
Parts by weight are 40;No added component.
Preparation method:(1) thermoplastic polyurethane of corresponding parts by weight is dissolved in acetone;(2) by corresponding parts by weight
Thermosetting silica gel liquid-state silicon gel part and cross-linker moiety add (1) acetone soln in, be well mixed, pour into mould;(3)
Room temperature volatilization acetone, and solidify more than 24 hours, obtain elastomeric material.
Up to 90%, response rate reaches 98% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
5.02MPa
Embodiment 15
Elastomeric material selects single component liquid silica gel, and parts by weight are 70;Transformation gathering compound selects polyurethane, weight
Number is 30;No added component.
Preparation method:(1) thermoplastic polyurethane of corresponding parts by weight is dissolved in acetone;(2) by corresponding parts by weight
Single component liquid silica gel add the acetone soln of (1), it is quick well mixed, pour into mould;(3) room temperature volatilization acetone, and
Solidification more than 24 hours, obtains elastomeric material.
Up to 90%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity exists
3.0-5.5MPa
Embodiment 16
Elastomer polymer selects two part heat cured silica gel;Transformation gathering compound selects polyurethane;No added component.
Preparation method:(1) by the liquid-state silicon gel part of the bi-component thermosetting silica gel of corresponding parts by weight and cross-linker moiety,
It is well mixed, and mould is poured into, solidification obtains Bio-sil material, and aperture is between 0.001mm-2mm;(2) it is polyurethane is molten
In acetone soln, mass fraction is between 5-30% for solution;(3) (1) gained Bio-sil material is immersed in the solution of (2)
In, time 1-24h, in polyurethane solutions infiltration immersion silica gel;(4) Bio-sil material is taken out, volatilize acetone, obtains silica gel
With weight polyurethane ratio in 50-70:The compounded rubber body material of 50-30.
Up to more than 75%, response rate reaches more than 95%, elasticity to the shape fixed rate of the present embodiment gained elastomeric material
Modulus is in 0.4-5MPa.
Embodiment 17
Elastomer polymer selects ionomer Nafion;Transformation gathering compound selects polyurethane;No added component.
Preparation method:(1) Nafion is prepared into material of the aperture in 0.001-0.5mm;(2) polyurethane is dissolved in third
In ketone solution, mass fraction is between 5-30%;(3) Nafion prepared by (1) is immersed in the solution of (2), time 1-
24h, makes polyurethane solutions permeate in immersion Nafion;(3) volatilize acetone, obtains Nafion with weight polyurethane ratio in 50-70:
The compounded rubber body material of 50-30.
Up to more than 65%, response rate reaches more than 90%, elasticity to the shape fixed rate of the present embodiment gained elastomeric material
Modulus is in 0.1-5MPa.
Embodiment 18
Elastomer polymer selects ionomer Nafion, and parts by weight are 80;Transformation gathering compound selects polyurethane;
Parts by weight are 20;No added component.
Preparation method:(1) thermoplastic polyurethane of corresponding parts by weight is dissolved in acetone;(2) corresponding weight will be contained
The Nafion solution (the nafion solution of the 5% of the Du Pont of commercialization) of number is added in the acetone soln of (1), is well mixed,
Pour into mould;(3) 120 DEG C of solvent flashings, and solidify more than 24 hours, obtain rubber bodies membrane material.
Up to more than 75%, response rate reaches more than 90%, elasticity to the shape fixed rate of the present embodiment gained elastomeric material
Modulus is in 0.1-5MPa.
Embodiment 19
Elastomer chain segments are from polysiloxanes gum stock (containing 1.0% methylvinyl-polysiloxane), parts by weight 50;
Reversible transition segment selects oligomeric (6-caprolactone) tetramethyl acrylate, weight fraction 50;AddO-on therapy without.
Preparation method is:(1) by the above-mentioned material of corresponding parts by weight, 120 DEG C are heated to and are melted completely, be sufficiently stirred for making
Its well mixed (2) are added thermodynamics radical initiator (AIBN, BPO) and are well mixed, and pour into mould;(3) 120 DEG C of heating
30min reactions obtain elastomeric material.
Up to 75%, response rate reaches 98% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
2.40MPa.
Embodiment 20
Elastomer chain segments are from polysiloxanes gum stock (containing 1.0% methylvinyl-polysiloxane), parts by weight 50;
Reversible transition segment selects oligomeric (6-caprolactone) tetramethyl acrylate, weight fraction 40;AddO-on therapy selects ethyl vinyl acetate
Vinyl acetate, parts by weight 10.
Preparation method is repeated no more with reality embodiment 16.
Up to 75%, response rate reaches 95% to the shape fixed rate of the present embodiment gained elastomeric material, and elastic modelling quantity is
1.10MPa。
Claims (14)
1. the moulding shape-memory material of a kind of room temperature, it is characterized in that:By the elastomeric polymer materials and 10- of 10-90 weight portions
The transformation gathering compound material of 90 weight portions, and 0-80 weight portions addO-on therapy material blending (including high-temperature fusion blending,
Solution blending volatilizees again and molten/liquation permeates etc.) it is prepared from;The elastic polymer material can have the material after blending
Standby elasticity, the transformation gathering compound can make the material after blending have thermal drivers shape memory characteristic, the addO-on therapy
The elastic performance and material softening that material can adjust material after being blended are cooled to the crystallization rate after transition temperature again;After blending
The transition temperature of material be 50-90 DEG C, moulding firm time at -5 DEG C -60 DEG C is 0-30min, and material is in -30-100
Elastic modelling quantity in DEG C temperature range is 0.05-100MPa.
2. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer, to have
One or more in machine silica gel, ionomer of combination.
3. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:Transformation gathering compound is to gather in oneself
One or more in ester, PLA, thermoplastic or heat-curable urethane these polymer of combination.
4. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The addO-on therapy can be following
One or more combination in material:Polypropylene, polyethylene, polyvinyl acetate, ethylene-vinyl acetate copolymer, amber
Sour sodium, Sodium glutarate, sodium n-caproate, Sodium Benzoate, p t butylbenzoic acid aluminium, glucitol derivative, organic phosphate, paraffin,
Talcum powder, carbon black, kaolin, calcium carbonate, silica, titanium dioxide.
5. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer is weight
Organic double-component silicon of part 40-80, the polycaprolactone of the transformation gathering compound amount of attaching most importance to part 10-50, the addO-on therapy weight
Number is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-
20min, elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.1-25MPa.
6. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer is weight
Organic double-component silicon of part 40-80, the polyurethane of the transformation gathering compound amount of attaching most importance to part 10-50, the addO-on therapy weight portion
Number is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-
20min, elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.1-25MPa.
7. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer is weight
Organic double-component silicon of part 40-80, the PLA of the transformation gathering compound amount of attaching most importance to part 10-50, the addO-on therapy weight portion
Number is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-
20min, elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.1-25MPa.
8. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer is weight
Organic one pack system silica gel of part 40-80, the polyurethane of the transformation gathering compound amount of attaching most importance to part 10-50, the addO-on therapy weight portion
Number is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-
30min, elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.1-50MPa.
9. the moulding shape-memory material of room temperature according to claim 1, it is characterized in that:The elastomer polymer is weight
The Nafion of part 40-80, the thermoplastic polyurethane of the transformation gathering compound amount of attaching most importance to part 10-50, the addO-on therapy parts by weight
It is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-30min,
Elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.05-30MPa.
10. the moulding shape-memory material of a kind of room temperature, it is characterized in that:By a kind of single polymers and 0-50 of 50-100 weight portions
The addO-on therapy of weight portion is combined and obtains;The structure of wherein single polymers is by the elastomeric segments and 10-90 of 10-90 weight portions
The reversible segment composition of weight portion, the elastomeric segments and reversible segment are by the chemical reaction functional group each having by certainly
Triggered by base or light initiating polymerizing reaction is combined;The reversible segment can make the material have the shape memory of thermal drivers special
Property, though the temporary shapes of material can with after heated softening in -5 DEG C of -60 DEG C of moulding hardening;The elastomeric segments can make material
Material possesses elasticity;The addO-on therapy material can adjust the elastic performance of material and in -5 DEG C -60 DEG C of moulding setting rate;
The transition temperature of material is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-30min, and material is at -30-100 DEG C
Elastic modelling quantity in temperature range is 0.05-100MPa.
The 11. moulding shape-memory materials of room temperature according to claim 10, it is characterized in that:The structure of the elastomeric segments is
The combination of a kind of block or various blocks in following structure:Silastic structure segment, natural rubber segment, polyurethane segment,
Propene-1-butene block, s-B-S block.
The 12. moulding shape-memory materials of room temperature according to claim 10, it is characterized in that:The structure of the reversible segment is
The combination of a kind of block or various blocks in following structure:Polycaprolactone segment, polylactic acid chain segment, polyethylene segment, chloroethene
It is alkene segment, polyethylene glycol segment, polyoxyethylene segment, polyvinyl alcohol segments, PolyTHF segment, poly- bornylene segment, poly-
Urethane segment.
The 13. moulding shape-memory materials of room temperature according to claim 10, it is characterized in that:The addO-on therapy can be with
One or more combination in lower material:Polypropylene, polyethylene, polyvinyl acetate, ethylene-vinyl acetate copolymer, amber
Meticortene Solu-Delta-cortef, Sodium glutarate, sodium n-caproate, Sodium Benzoate, p t butylbenzoic acid aluminium, glucitol derivative, organic phosphate, stone
Wax, talcum powder, carbon black, kaolin, calcium carbonate, silica, titanium dioxide.
The 14. moulding shape-memory materials of room temperature according to claim 10, it is characterized in that:The structure of the elastomeric segments is
Weight portion 40-80 silicon rubber segments, reversible segment is the polycaprolactone segment of weight portion 10-50, the addO-on therapy weight portion
Number is 0-40;The transition temperature of the material after blending is 50-90 DEG C, and the moulding firm time at -5 DEG C -60 DEG C is 1-
30min, elastic modelling quantity of the material in -30-100 DEG C of temperature range is 0.1-25MPa.
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CN114213848A (en) * | 2021-12-28 | 2022-03-22 | 南京航空航天大学 | Shape memory porous material capable of being shaped at body temperature/room temperature and preparation method thereof |
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