CN101949070B - Heat-storage and thermo-regulated fiber - Google Patents
Heat-storage and thermo-regulated fiber Download PDFInfo
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Abstract
The invention discloses a heat-storage and thermo-regulated fiber. A comb-shaped polymer phase change material is used as the component A and a fiber-forming polymer is used as the component B to prepare the heat-storage and thermo-regulated fiber by the composite melt spinning method, wherein the comb-shaped polymer phase change material is the homopolymer of poly(3-alkylthiophene), the copolymer of two kinds of 3-alkylthiophenes in the molar ratio of 20:80-80:20, or the mixture of two kinds of poly(3-alkylthiophene) homopolymers in a mixing weight ratio of 20:80-80:20; the fiber-forming polymer contains at least one of copolyacrylonitrile, copolyester, copolyamide, polypropylene and polyamide; and the weight percentages of the component A and the component B in the fiber are separately 20-60% and 80-40%. The fiber has not only good heat-storage and thermo-regulated performance, but also the characteristics of antistatic property, low leakage, good thermal stability and the like.
Description
Technical field
The present invention relates to the functional fiber technology, is a kind of heat-storage thermoregulation fiber with antistatic, heat absorption, storage and release function specifically.
Background technology
Through phase-change material being implanted or being coated in fiber surface, obtain having heat absorption, the fiber of memory function is called heat-storage thermoregulation (function) fiber.Generally, mostly phase-change material is low molecular compound, like hydrated inorganic salt, n-alkane, higher aliphatic, higher fatty acids or senior fatty ester etc.When these materials are in liquid state, be very easy to flow, not only conformality is poor; And cause damage easily or contaminated environment; It must be sealed up for safekeeping in container, or mix, obtain to use after the relatively-stationary shape with other absorption backing materials; For example, Europatent EP0306202 discloses a kind of microballoon that will contain phase-change material or plastic crystal material and is blended in and processes the technology with reversible thermal storage performance fiber in the polymer.It is complicated that the microballoon of this technology prepares process, and diameter of micro ball, heat-resistant stability, anti-solvent stability etc. all influence the preparation and the performance of fiber, causes properties of product unstable, is difficult to industrial applications.
At present known polymer phase-change material is less, mainly is aliphatic polyether, like polyethylene glycol and polytetramethylene glycol etc.; Aliphatic polyester, like polyethylene glycol adipate, gather glutaric acid hexylene glycol ester etc., and polyester ether; Like poly terephthalic acid ethylene glycol-polyethylene glycol, polybutylene terephthalate-polyethylene glycol etc.; The aliphatic polyether melt temperature difference that molecular weight is different, the melt temperature of forming different aliphatic polyesters and polyester ether is also different, can satisfy the part instructions for use.But decompose easily the back because aliphatic polyester and polyester ether are heated, thereby the scope of application also is restricted.For example; The applicant is at " India's fiber and textile research journal (Indian Journal of Fibre & Textile Research; 2003; 28 (3): 265-269) having reported with normal alkane and mix the back with polyethylene and second third glue as the core composition of fiber, is the skin composition of fiber with the polypropylene, and melt composite spinning prepares the technology of heat-storage thermoregulation fiber.But because normal alkane (structural formula: n-C
nH
2n+2, n=14～40) and belong to micromolecular compound, it is present in the fibre core composition with blend, moves easily in the use; For another example; Applicant's Chinese invention patent application CN1165877A discloses a kind of principal component that adopts polymer such as aliphatic polyether, aliphatic polyester, polyester ether as the core or the island component of fiber; With the fibre-forming polymer is skin composition or sea component, produces the method with heat-storage thermoregulation functional fibre through melt composite spinning; This method not only greatly reduces technology difficulty, and makes and produce the heat-storage thermoregulation fiber expeditiously and become possibility.But because the fusion and the crystallization process of the interconvertibility energy auto polymerization owner chain of aliphatic polyether, aliphatic polyester and polyester ether; Also flow when being in molten condition; And the heat content of polyethers and aliphatic polyester and polyester ether is less, heat-resistant stability is relatively poor; Kind is less, is difficult to make the heat-storage thermoregulation fiber of function admirable.In the known public technology in applicant's range of search, the heat-storage thermoregulation fiber only has temp regulating function, and owing to use low molecular organic phase-change material; Hydrophobicity is very strong; Cause the static of fiber bigger, do not have antistatic behaviour, the result of use and the scope of fiber are restricted.
Summary of the invention
For overcoming the deficiency that prior art exists; The technical problem that quasi-solution of the present invention is determined is; A kind of heat-storage thermoregulation fiber is provided; This fiber also have characteristics such as antistatic, low seepage, Heat stability is good, and this fiber preparation method is applicable to industrializing implementation except that having good heat-storage thermoregulation performance.
The technical scheme that the present invention solve the technical problem is: design a kind of heat-storage thermoregulation fiber, this fiber is the A composition with the comb polymer phase-change material, is the B composition with the fibre-forming polymer, processes through the melt composite spinning method; Described comb polymer phase-change material is for gathering the copolymer of the homopolymers of (3-alkylthrophene) or two kinds of 3-alkylthrophenes that mol ratio is 20: 80～80: 20 or two kinds of blends that gather (3-alkylthrophene) homopolymers that the mixing quality ratio is 20: 80～80: 20; Described fibre-forming polymer comprises at least a in copolymerized acrylonitrile, copolyesters, copolyamide, polypropylene and the polyamide; The quality percentage composition of said A composition in fiber is 20～60%, and the quality percentage composition of said B composition in fiber is 80～40%.
Compared with prior art; There are following two characteristics in heat-storage thermoregulation fiber of the present invention: the heat-storage thermoregulation fiber of (1) the present invention design, because gathering the positive alkyl of side chain of (3-alkylthrophene), said comb polymer as n-alkane solid-liquid and liquid-solid phase transformation can take place, and absorb or exothermic function thereby have; The main chain polythiophene is in solid-state in the process and positive alkyl undergoes phase transition; Main chain is fixed positive alkyl, it can not be flowed, in other words as the micromolecule phase-change material; Even the main chain of said comb polymer has guaranteed crystallizable positive alkyl side chain and has been in molten condition; Also be unlikely to migration or seepage take place, the positive alkyl that covalent bond will have the energy storage effect is fixed on the polythiophene strand, makes said comb polymer phase-change material can or seldom can or not show effusion from fibrous inside; Therefore can guarantee that the seepage of product heat-storage thermoregulation fiber is lower, heat endurance is better; (2) after the main chain of said comb polymer mixes; Has excellent conducting performance; With its heat-storage thermoregulation fiber of processing as a kind of fibrous composition, when having good heat-storage thermoregulation performance, have excellent conducting performance, improved and enlarged the functional of product.More than two characteristics make in heat-storage thermoregulation fiber of the present invention and the prior art difference that the temperature-regulating fiber for preparing after conventional polymer and the blend of micromolecule phase-change material is had essence.
Description of drawings
Fig. 1 gathers (3-alkylthrophene) structural formula sketch map for heat-storage thermoregulation fiber A composition comb polymer phase-change material of the present invention;
Fig. 2 is the cross-sectional structure sketch map of heat-storage thermoregulation fiber of the present invention.Wherein, Fig. 2 (1) is the heat-storage thermoregulation fiber sketch map of circular concentric structure for cross section; Fig. 2 (2) is the heat-storage thermoregulation fiber sketch map of eccentric circular configuration for cross section; Fig. 2 (3) is the heat-storage thermoregulation fiber sketch map of circular configuration arranged side by side for cross section.
The specific embodiment
Further narrate the present invention below in conjunction with embodiment:
The heat-storage thermoregulation fiber (abbreviation fiber) of the present invention's design is the A composition with the comb polymer phase-change material, is the B composition with the fibre-forming polymer, processes through the melt composite spinning method; Described comb polymer phase-change material comprises: the copolymer or the two kinds of blends that gather (3-alkylthrophene) homopolymers that the mixing quality ratio is 20: 80～80: 20 that gather (3-alkylthrophene) homopolymers or mol ratio and be two kinds of 3-alkylthrophenes of 20: 80～80: 20.Said two kinds of 3-alkylthrophenes are meant the 3-alkylthrophene that the alkyl carbon atoms number is different; Said comb polymer phase-change material is fixed on the main chain of this polymer with covalent bond has the energy storage effect taking place solid-liquid, liquid-solid phase to change positive alkyl.The fibre-forming polymer of described B composition comprises at least a in copolymerized acrylonitrile, copolyesters, copolyamide, polypropylene and the polyamide.The quality percentage composition of said A composition in fiber is 20～60%, and the quality percentage composition of said B composition in fiber is 80～40%.
The structural formula that gathers (3-alkylthrophene) of fiber of the present invention is as shown in Figure 1, n=12～40.Research shows, the homopolymers of according to the invention gathering (3-alkylthrophene) or the copolymer of two kinds of 3-alkylthrophenes, or the blend of said homopolymers in carbon number n=12～40 o'clock of alkyl, the functional effect of the fiber of processing is more satisfactory.Crystallization can not take place in the alkyl that gathers in (3-alkylthrophene) of carbon number n＜12 in the positive alkyl, is difficult to bring into play the phase-change accumulation energy effect; On the contrary, for gather (the 3-alkylthrophene) of carbon number n＞40 in the positive alkyl, its phase transition temperature is higher, is difficult to realize the phase-change accumulation energy effect of the object of the invention equally.Several kinds of melting behaviour such as the tables 1 that gather (3-alkylthrophene) show.
Several kinds of melting behaviour tables that gather (3-alkylthrophene) of table 1
| Polymer | Abbreviation | Fusing point I (℃) | Heat content (J/g) |
| Gather (3-dodecyl thiophene | P3DDT | 33.5 | 6 |
| Gather (3-cetyl thiophene) | P3HDT | 49.4 | 83 |
| Gather (3-octadecyl thiophene) | P3ODT | 54.9 | 86 |
The quality percentage composition of the A composition of fiber of the present invention in fiber is 20～60%, and the quality percentage composition of B composition in fiber is 80～40%, and the quality percentage composition sum of A composition and B composition is 100%.The quality percentage composition of said A composition in fiber is lower than at 20% o'clock, and spinning process realizes easily, but the fiber quantity of heat storage of processing is lower; The heat-storage thermoregulation effect is relatively poor; And the quality percentage composition of A composition is higher than at 60% o'clock, because the fibre-forming performance of A composition is difficult to stably realize spinning process not as the B composition; And finally influence the serviceability of fiber, do not advise that therefore ca adopts.
The polymer phase-change material that described A composition uses can be the homopolymers of a kind of gathering (3-alkylthrophene), can be the copolymer of two kinds of 3-alkylthrophenes also, but the molar content of any one 3-alkylthrophene should not be lower than 20% in the copolymer; Test shows that in the copolymer of said two kinds of 3-alkylthrophenes, the mol ratio of two kinds of 3-alkylthrophenes is at 20: 80～80: 20 o'clock, and the heat accumulation and the anti-static function of product are better.
Can also be two kinds and gather the blend of (3-alkylthrophene) homopolymers; The mixing quality ratio is 20: 80～80: 20; Also be that any one quality percentage composition that gathers (3-alkylthrophene) all is not less than 20% in the mixture, and all quality percentage composition sums of gathering (3-alkylthrophene) are 100%.At the blend of selecting two kinds for use and gather (3-alkylthrophene) homopolymers during as the A composition of fiber; The endothermic temperature that should also be noted that the exothermic temperature that makes a kind of comb polymer phase-change material and another kind of comb polymer phase-change material is not overlapping or inconsistent; In order to avoid make the heat accumulation defunctionalization, or heat absorption, exothermic temperature change.
Selecting mol ratio for use is two kinds of 3-alkylthrophene copolymerization comb polymer phase-change materials of 20: 80～80: 20; Can prepare a series of comb polymer phase-change materials of phase transition temperature continually varying; Solve homopolymers phase transition temperature relative fixed simultaneously, be difficult to satisfy the problem of instructions for use sometimes.Research shows that the molar content of a certain monomer in the copolymer is lower than at 20% o'clock, and the homopolymers difference of the another kind of monomer that resulting performance of copolymer and molar content are high is little, loses the meaning of modification by copolymerization, does not therefore generally advise adopting.
Said comb polymer adopts the copolymer of the 3-alkylthrophene more than three kinds; Though also can be used for preparing fiber of the present invention, because the degree of crystallinity of 3-alkylthrophene copolymer is generally lower more than three kinds, the heat enthalpy value of copolymer is less; Influence result of use, therefore generally also do not advise adopting.
The present invention is as the homopolymers of the 3-alkylthrophene of fiber A composition or copolymer, or the mixture of said homopolymers, and its average degree of polymerization (number of repeat unit on polymer or the copolymer molecule chain) generally is controlled between 5～500.Average degree of polymerization is lower than at 5 o'clock, and the character of homopolymers or copolymer is similar with monomer, at the side chain of homopolymers or copolymer-when positive alkyl is in liquid state, move easily, causes the leakage of polymer phase-change material; Otherwise average degree of polymerization then caused homopolymers or copolymer viscosity excessive greater than 500 o'clock easily, made the spinning melt difficulty of transportation, was difficult to prepare smoothly fiber.
The fibre-forming polymer of fiber B composition of the present invention comprises at least a in copolymerized acrylonitrile, copolyesters, copolyamide, polypropylene and the polyamide etc.The reason of making such selection be the melt temperature of these polymer below 250 ℃, even, make spinning process be able under relatively low temperature, carry out below 230 ℃, can be not too high because of spinning temperature, cause said polymer phase-change material to decompose.
Fiber of the present invention is distinguished according to the shape of cross section of fiber, can have circular concentric, eccentric circular and circular side by side three kinds (referring to Fig. 2; 1-A composition among the figure, the 2-B composition).The performance that the fiber of three kinds of shape of cross sections has is not quite similar: circular concentric (referring to Fig. 2 (1)) can be coated on fibrous inside to the comb polymer phase-change material as the A composition well; Thereby prevented seepage or the leakage in use of comb polymer phase-change material effectively; Improved the stability of product function, but its antistatic behaviour is relatively poor.The A composition of eccentric circular fiber (referring to Fig. 2 (2)) also is in the core of fiber, but does not occupy the center of fiber, and its certain part is exposed or near fiber surface, the antistatic behaviour of this fiber is better, and anti-leakage property is also better.The A composition and the B composition of circular fiber (referring to Fig. 2 (3)) are arranged in parallel side by side, and the electric conductivity of this fiber is good, and anti-leakage property is also better.
Fiber preparation method of the present invention has adopted the melt composite spinning method, is same as prior art basically, according to the constituent of fiber according to the invention, mainly comprises following step:
(1) employing knows that altogether technology will be synthesized voluntarily or homopolymers, the copolymer of the comb polymer phase-change material 3-alkylthrophene of the said A composition that market is bought; Or mass ratio is 20～80: 80～20 homopolymer blend thing; Through dry, remove moisture wherein, make moisture content reach 50～150ppm;
(2) be transported in the A composition measuring pump of fiber after homopolymers, copolymer or the fusion of homopolymer blend thing of employing known technology with said gathering (3-alkylthrophene), the quality percentage composition of the A composition of controlling fiber is 20～60%;
(3) adopt the fibre-forming polymer of known technology, remove moisture, make moisture content reach 50～150ppm through drying with said B composition;
(4) adopt known technology with the fusion of B composition fibre-forming polymer after, be transported in the B composition measuring pump of fiber, the quality percentage composition of the B composition of fiber is 80～40%;
(5) A composition and B composition are extruded through core-skin type composite spinneret or parallel type composite spinneret, formed dynamic analysis of spinning;
(6) adopt known technology to the dynamic analysis of spinning that forms cool off, drawing-off, twist, add bullet, oil, finalize the design, curl, PROCESS FOR TREATMENT such as cut-out, process the heat-storage thermoregulation fiber staple fibre or the long filament of different size.
The homopolymers of according to the invention gathering (3-alkylthrophene) or the copolymer of two kinds of 3-alkylthrophenes can adopt multiple catalyst to prepare, and catalyst commonly used has iron chloride (FeCl
3), a kind of in potassium peroxydisulfate, ammonium persulfate, sodium chlorate and clorox etc.
In order to guarantee the uniformity of polymerization process, polymerisation is generally carried out in organic solvent.Described organic solvent is meant the good dissolving 3-alkylthrophene of ability, gathers the solvent of (3-alkylthrophene) and two kinds of 3-alkylthrophene copolymers, like chloroform, 1, and 2-dichloroethanes, toluene etc.After reaction finishes, in the copolymer solution of the homopolymers that gathers (3-alkylthrophene) or two kinds of 3-alkylthrophenes, add conventional precipitating agent, make homopolymers or copolymer deposition, described precipitating agent is methyl alcohol, ethanol etc.Sediment promptly obtains preparing the raw material of heat-storage thermoregulation fiber of the present invention through washing, filtration, drying.
The sign of heat-storage thermoregulation fibre property of the present invention; Except that indicating especially; Equipment and method below all using: adopt NETZSCH DSC 200F3, under the nitrogen protection, the DSC scanning curve of 10 ℃/min of test temperature-rise period; Test the DSC scanning curve of-10 ℃/min temperature-fall period, obtain suction, exothermicity and suction, the thermal discharge of fiber; Adopt NETZSCH STA409PC/PG TG-DTA to heat up and record the aerial heat decomposition temperature of fiber with 10 ℃/min; The 3478A of Hewlett-Packard type digital measuring apparatus is adopted in conductance measurement; The anti-leakage performance test: with the cyclohexane is extraction medium, adopts apparatus,Soxhlet's after 2 hours, to be dried to constant weight 80 ℃ of following extractings, tests the variation of extracting front and back fibre weight then.Through detecting, the suction exothermic temperature of heat-storage thermoregulation fiber of the present invention is at 25～60 ℃, quantity of heat storage>=19J/g, heat-resistant stability>=245 ℃, surface ratio resistance＜10
4Ω .cm, quality of fiber loss late＜6% after the extracting.
With fiber of the present invention, adopt conventional or unconventional technology, be processed into the heat-storage thermoregulation fabric separately or with natural fabric or chemical fibre blending, can be used for clothes, bedding, sock, socks and heat preserving and insulating material etc.When this heat-storage thermoregulation fabric is higher than the melt temperature of blend of the homopolymers that gathers (3-alkylthrophene) in the fiber A composition or copolymer or homopolymers in environment temperature, absorb heat, solid-liquid takes place change mutually, thereby it is constant basically to keep the fabric temperature; On the contrary; When environment temperature is reduced to the crystallization temperature of the blend that is lower than the homopolymers that gathers (3-alkylthrophene) in the fiber A composition or copolymer or homopolymers; The generation liquid-solid phase changes; Emit heat, thereby it is constant basically to keep the fabric temperature, thereby can significantly improves the wearing comfort of fabric.
The present invention does not address part and is applicable to prior art.
Providing specific embodiment of the present invention: embodiment below only is in order to be described in further detail this explanation, not limit the claim of application of the present invention.
Embodiment 1
The random copolymer (average degree of polymerization 21) of 3-cetyl thiophene and 3-octadecyl thiophene that with mol ratio is 20: 80 is as the A composition of fiber; Polycaprolactam (inherent viscosity 0.75) is the B composition of fiber; After two kinds of compositions all are dried to moisture and are lower than 100ppm; Control A, B mass ratio are 40: 60, and 250 ℃ of following fusion circular concentric core-skin composite spinning silks are processed spun filament, further are processed into elastic filament.
Through check, the fiber number of this finished fiber is 132dtex/78f, tensile break strength 3.4cN/dtex, elongation at break 35%; The endothermic temperature of this fiber is 34 ℃, caloric receptivity 25J/g, and exothermic temperature is 27 ℃, thermal discharge is 29J/g; 5% thermal weight loss temperature is 295 ℃; The surface ratio resistance of fiber is 3200 Ω/cm; After adopting cyclohexane to be extracting of solvent apparatus,Soxhlet's or processing, the loss in weight of fiber is 4%.
Embodiment 2
The random copolymer (average degree of polymerization 92) of 3-cetyl thiophene and 3-octadecyl thiophene that with mol ratio is 80: 20 is as the A composition of fiber; Polypropylene (melt index 35g/10min) is the B composition of fiber; After two kinds of compositions all were dried to moisture and are lower than 100ppm, control A, B mass ratio were 40: 60, and 230 ℃ of following fusion composite spinnings arranged side by side are processed spun filament; Further boundling, drawing-off, curl, dryness finalization, cut-out, process staple fibre.
Through check, the fiber number of this finished fiber is 2.4dtex, tensile break strength 2.9cN/dtex, elongation at break 34%; The endothermic temperature of this fiber is 28 ℃, caloric receptivity 34J/g, and exothermic temperature is 21 ℃, thermal discharge is 19J/g; 5% thermal weight loss temperature is 247 ℃; The surface ratio resistance of fiber is 1.2/cm; After adopting cyclohexane to be the extracting of solvent apparatus,Soxhlet's, the loss in weight of fiber is 6%.
Embodiment 3
To gather (3-octadecyl thiophene) (average degree of polymerization 308) A composition as fiber; Mole consists of acrylonitrile-methyl acrylate random copolymer (number-average molecular weight 125000 of 85: 15; 178 ℃ of fusing points) be the B composition of fiber, after two kinds of compositions all were dried to moisture and are lower than 50ppm, control A, B weight ratio were 50: 50; 200 ℃ of melt composite spinnings are processed eccentric circular spun filament, further are processed into elastic filament.
The fiber number of this finished fiber is 113dtex/48f, tensile break strength 3.1cN/dtex, elongation at break 35%; The endothermic temperature of fiber is 55 ℃, caloric receptivity 38J/g, and exothermic temperature is 48 ℃, thermal discharge is 37J/g; 5% thermal weight loss temperature is 253 ℃; The surface ratio resistance of fiber is 206 Ω/cm; After adopting cyclohexane to be the extracting of solvent apparatus,Soxhlet's, the loss in weight of fiber is 4%.
Embodiment 4
To gather (3-octadecyl thiophene) (average degree of polymerization 308) A composition as fiber; Mole consists of acrylonitrile-methyl acrylate random copolymer (number-average molecular weight 125000 of 85: 15; 178 ℃ of fusing points) be the B composition of fiber, after two kinds of compositions all were dried to moisture and are lower than 50ppm, control A, B weight ratio were 20: 80; 200 ℃ of melt composite spinnings are processed eccentric circular spun filament, further are processed as staple fibre.
The fiber number of this finished fiber is 3.4dtex, tensile break strength 3.1cN/dtex, elongation at break 35%; The endothermic temperature of fiber is 56 ℃, caloric receptivity 18J/g, and exothermic temperature is 49 ℃, thermal discharge is 19J/g; 5% thermal weight loss temperature is 275 ℃; The surface ratio resistance of fiber is 1300 Ω/cm; After adopting cyclohexane to be the extracting of solvent apparatus,Soxhlet's, the loss in weight of fiber is 3%.
Embodiment 5
To gather (3-octadecyl thiophene) (average degree of polymerization 308) A composition as fiber; Mole consists of acrylonitrile-methyl acrylate random copolymer (number-average molecular weight 125000 of 85: 15; 178 ℃ of fusing points) be the B composition of fiber, after two kinds of compositions all were dried to moisture and are lower than 50ppm, control A, B weight ratio were 60: 40; 200 ℃ of melt composite spinnings are processed eccentric circular spun filament, further are processed into staple fibre.
The fiber number of this finished fiber is 2.3dtex, tensile break strength 2.7cN/dtex, elongation at break 38%; The endothermic temperature of fiber is 54 ℃, caloric receptivity 39J/g, and exothermic temperature is 48 ℃, thermal discharge is 41J/g; 5% thermal weight loss temperature is 265 ℃; The surface ratio resistance of fiber is 34 Ω/cm; After adopting cyclohexane to be the extracting of solvent apparatus,Soxhlet's, the loss in weight of fiber is 6%.
Comparative example 1
With the n-eicosane is the A composition of fiber, is the B composition of fiber with isotactic polypropylene (Kingsoft petrochemical industry 3700C type), and A, B weight ratio are 40: 60; 250 ℃ of melt composite spinnings; N-eicosane is vaporized in spinning process, and from fiber, seriously leaks, and as-spun fibre is difficult to reel.
Comparative example 2
Mix back A composition as fiber with n-eicosane with 20: 80 weight ratio with high density polyethylene (HDPE) (Fushun petrochemical industry 2911H type); Isotactic polypropylene (Kingsoft petrochemical industry 3700C type) is the B composition of fiber; A, B weight ratio are 50: 50; 200 ℃ of melt composite spinnings are processed spun filament, further are processed into staple fibre.
This filamentary fiber number is 2.8dtex, tensile break strength 2.8cN/dtex, elongation at break 47%; The endothermic temperature of fiber is 38 ℃, caloric receptivity 43J/g, and exothermic temperature is 31 ℃, thermal discharge is 45J/g.5% thermal weight loss temperature is 195 ℃; The surface ratio resistance of fiber is 1.8x10
15Ω/cm; After being the extracting of solvent apparatus,Soxhlet's with the cyclohexane, the loss in weight of fiber is 25%, and the stability in use of fiber is relatively poor.
Claims (2)
1. heat-storage thermoregulation fiber, this fiber is the A composition with the comb polymer phase-change material, is the B composition with the fibre-forming polymer, processes through the melt composite spinning method; Described comb polymer phase-change material is for gathering the copolymer of the homopolymers of (3-alkylthrophene) or two kinds of 3-alkylthrophenes that mol ratio is 20: 80～80: 20 or two kinds of blends that gather (3-alkylthrophene) homopolymers that the mixing quality ratio is 20: 80～80: 20; Described fibre-forming polymer comprises at least a in copolymerized acrylonitrile, copolyesters, copolyamide, polypropylene and the polyamide; The quality percentage composition of said A composition in fiber is 20～60%, and the quality percentage composition of said B composition in fiber is 80～40%; The homopolymers of said gathering (3-alkylthrophene) or the copolymer of said two kinds of 3-alkylthrophenes, or said two kinds of blends that gather (3-alkylthrophene) homopolymers in the carbon number n=12-40 of alkyl, and its average degree of polymerization is 5-500; The blend of selecting two kinds for use and gather (3-alkylthrophene) homopolymers is during as the A composition of fiber, makes a kind of endothermic temperature of exothermic temperature and another kind of comb polymer phase-change material of comb polymer phase-change material not overlapping.
2. heat-storage thermoregulation fiber according to claim 1, the suction exothermic temperature that it is characterized in that described heat-storage thermoregulation fiber be at 25～60 ℃, quantity of heat storage>=19J/g, heat-resistant stability＞245 ℃, surface ratio resistance＜10
4Ω .cm, quality of fiber loss late＜6% after the extracting.
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| CN102154737B (en) * | 2011-03-22 | 2012-11-21 | 天津工业大学 | Heat-accumulation temperature-regulation fiber and preparation method thereof |
| CN102443878B (en) * | 2011-09-23 | 2014-01-15 | 大连工业大学 | Multifunctional comfort fiber with functions of phase transition temperature regulation, moisture absorption and moisture wicking |
| CN102443879B (en) * | 2011-09-23 | 2013-10-23 | 大连工业大学 | Intelligent temperature regulating fibers and preparation method thereof |
| CN108456948B (en) * | 2018-02-02 | 2020-05-12 | 天津工业大学 | Heat-storage temperature-regulating fiber and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871615A (en) * | 1984-07-02 | 1989-10-03 | The United States Of America As Represented By The Secretary Of Agriculture | Temperature-adaptable textile fibers and method of preparing same |
| US5885475A (en) * | 1995-06-06 | 1999-03-23 | The University Of Dayton | Phase change materials incorporated throughout the structure of polymer fibers |
| CN1317602A (en) * | 2000-04-10 | 2001-10-17 | 天津纺织工学院 | Autoamtic temp-regulating fibre and its products |
| KR20090130223A (en) * | 2009-11-27 | 2009-12-21 | 코오롱글로텍주식회사 | Method for fabricating heating fabric |
| CN101845683A (en) * | 2010-05-07 | 2010-09-29 | 盈保纤维科技(仁化)有限公司 | Fibers capable of heat storage and temperature adjustment |
Non-Patent Citations (1)
| Title |
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| Martin Pomerantz, ect.al.Processable polymers and copolymers of 3-alkylthiophenes and their blends.《Synthetic Metals》.1991,第41卷(第3期),第829页. * |
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| Publication number | Publication date |
|---|---|
| CN101949070A (en) | 2011-01-19 |
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