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CN108484859A - It is a kind of can self-heating polyurethane insole preparation method - Google Patents

It is a kind of can self-heating polyurethane insole preparation method Download PDF

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Publication number
CN108484859A
CN108484859A CN201810229049.2A CN201810229049A CN108484859A CN 108484859 A CN108484859 A CN 108484859A CN 201810229049 A CN201810229049 A CN 201810229049A CN 108484859 A CN108484859 A CN 108484859A
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CN
China
Prior art keywords
polyurethane
negative ion
mass parts
preparation
powder
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Pending
Application number
CN201810229049.2A
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Chinese (zh)
Inventor
陈清才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quanzhou Anshi Deng Shoes And Clothing Co Ltd
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Quanzhou Anshi Deng Shoes And Clothing Co Ltd
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Priority to CN201810229049.2A priority Critical patent/CN108484859A/en
Publication of CN108484859A publication Critical patent/CN108484859A/en
Pending legal-status Critical Current

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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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
    • C—CHEMISTRY; METALLURGY
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    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
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    • C08G18/6558—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/657—Compounds of group C08G18/63 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
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    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
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    • C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention discloses it is a kind of can self-heating polyurethane insole preparation method, include the following steps：One, negative ion powder and talcum powder are modified by the surface modifier surface of Amino End Group simultaneously；Two, the negative ion powder and talc mixture being modified by surface that step 1 obtains are added in polyether polyol, polyurethane A material is prepared under polymer polyatomic alcohol, crosslinking agent, catalyst, foam stabiliser, foaming agent effect；Three, the insole is prepared with isocyanate compound in the polyurethane A material that step 2 obtains.Preparation method of the present invention is simple, talcum powder modification synchronous with negative ion powder, and the viscosity for reducing the polyurethane A material containing negative ion powder ensure that negative ion powder is evenly dispersed in polyurethane insole；Modified obtained polyurethane insole is synchronized due to the introducing of talcum powder and there is good dimensional stability, insole is avoided because of being heated in use and leads to the problem of contraction.

Description

It is a kind of can self-heating polyurethane insole preparation method
Technical field
The present invention relates to a kind of preparation method of insole, especially it is a kind of can self-heating polyurethane insole preparation method
Background technology
Frigid zone country or frigid zone region, winter temperature is very low, for constitution it is weak or some need for a long time in outdoor For the personnel of work, how to ensure that providing warming measure tool to foot has very important significance.It is current it is most of be by add suede, It thickeies and reduces gas permeability to realize, this will greatly limit the portability and comfort of shoes.Chinese patent CN 106562514 A realize the electrical heating to insole by the way that control box and heating plate are added in insole.Chinese patent CN 107157008 A power to heating layer by battery, and use is safer, by a resistance of connecting with heating layer, realize in shoes Temperature tunes into the melt.105708045 A of Chinese patent CN are based on the spontaneous heat production of piezoelectric ceramics, and electric energy is converted by mechanical energy, Then the resistance wire for insole bottom achievees the purpose that spontaneous heating for electrical heating.However the complexity of this design that will increase shoes Property and safety, also add prodigious cost.
Ingredient in anion powder is the silicate material of aluminium characterized by boracic, sodium, iron, lithium cyclic structure, tool There are pyroelectricity and piezoelectricity, generates far infrared since polar ion therein is vibrated in equilbrium position, and then cause human body The molecular resonance of cell causes intermolecular friction to generate heat, and subcutaneous deep temperature is promoted to increase, additionally so that Marjoram Extract, adds Fast blood circulation all has improvement and preventive and therapeutic effect for a variety of diseases caused by blood circulation and microcirculation disorder.Containing negative The polyurethane insole of ion powder makes the polar ion in anion powder balance with the continuous bending in walking process Position vibrates and generates far infrared, and then promotes the temperature of foot, realizes self-heating.However it introduces poly- ammonia in negative ion powder During ester material, often significantly increase the viscosity of system, certain influence generated on the preparation process of polyurethane so that Dispersion of the negative ion powder in polyurethane is uneven and the problem of cause tearing strength to decline.
Therefore, those skilled in the art be dedicated to developing it is a kind of can self-heating polyurethane insole preparation method.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the present invention is to reduce negative ion powder introducing The viscosity occurred during polyurethane material increases and influences preparation process and cause asking for polyurethane insole tearing strength decline Topic.
To achieve the above object, the present invention provides it is a kind of can self-heating polyurethane insole preparation method, including with Lower step：
Step 1: negative ion powder is modified by the surface modifier surface of Amino End Group simultaneously with talcum powder；
Step 2: it is more that the negative ion powder and talc mixture being modified by surface that step 1 obtains are added to polyethers In first alcohol, polyurethane A material are prepared under polymer polyatomic alcohol, crosslinking agent, catalyst, foam stabiliser, foaming agent effect；
Step 3: the obtained polyurethane A material of step 2 and isocyanate compound be prepared can self-heating polyurethane Insole.
Further, step 1 is specially：Negative ion powder is uniformly mixed with talcum powder by mechanical agitation, and mixture is obtained One；The surface modifier of Amino End Group is added in mixture one, is stirred 30 to 90 minutes under room temperature.
Further, negative ion powder includes the mixture of tourmaline powder and rare earth element, and wherein tourmaline powder accounts for quality hundred The 20-22% of ratio, rare earth element is divided to account for the 60-65% of mass percent；The fineness of talcum powder be 500 mesh, 600 mesh, 800 mesh with And 1250 one kind in mesh；Silica accounts for the 55-60% of mass percent in talcum powder, and magnesia accounts for mass percent 30-40%.
Further, the surface modifier of Amino End Group is KH550 (gamma-aminopropyl-triethoxy-silane) and/or A-1170 (two (γ-trimethoxy-silylpropyl) amine).
Further, the mass ratio of the surface modifier of negative ion powder, talcum powder and Amino End Group is 100 in step 1： 25-50：1-5.
Further, step 2 is specially：100 mass parts polyether polyol stir 5-10 in 50-60 DEG C, 50-200rpm After second, the negative ion powder and talc mixture that are modified by surface that 10-40 mass parts step 1 obtains is added, stirs evenly Afterwards, 80-110 mass parts polymer polyatomic alcohol, 1-3 mass parts crosslinking agent, 1-3 mass parts of catalyst, 0.5-5 mass are sequentially added Part foam stabiliser, 2-10 mass parts foaming agents, continue stirring 30-60 minutes.
Further, the degree of functionality of polyether polyol is 3, number-average molecular weight 5000；Polymer polyatomic alcohol is styrene With the graft copolymer of acrylonitrile, degree of functionality 2, number-average molecular weight 4000.
Further, crosslinking agent is one kind in trimethylolpropane, glycerine, diethanol amine；Foam stabilizer is polysiloxanes- Oxyalkylene block copolymer；Foaming agent is HCFC-141B (a fluorine dichloroethanes).Further, catalyst is PC-8 (N, N- Dimethyl cyclohexyl amine).
Further, step 3 is specially：The polyurethane A material that step 2 obtains stir 10-60 under the stirring of 1000rpm After second, isocyanate compound is added, and after stir 5-10 seconds under the stirring of 1000rpm, pours into insole mold, foaming, And at 100 DEG C curing molding 1-2 hours, be prepared can self-heating polyurethane insole.
Further, the isocyanate compound in three be toluene di-isocyanate(TDI), it is methyl diphenylene diisocyanate, more One kind in polymethylene polyphenyl polyisocyanates；Polyurethane A material and the mass ratio of isocyanate compound are in step 3 100：40-100.
Compared with prior art, the present invention preparation method is simple, talcum powder modification synchronous with negative ion powder reduces The viscosity of polyurethane A material containing negative ion powder and ensure that negative ion powder is evenly dispersed in polyurethane insole, make it uniformly Ground generate far infrared, realize can self-heating effect.In addition, synchronizing modified obtained polyurethane insole due to talcum powder It introduces and there is good dimensional stability, avoid insole because of being heated in use and lead to the problem of contraction.
Specific implementation mode
The invention will be further described with reference to embodiments, but the scope of protection of present invention is not limited to The range that embodiment indicates.
Embodiment 1：
1) negative ion powder is modified by the surface modifier surface of Amino End Group simultaneously with talcum powder
The negative ion powder of 100 mass parts, 800 mesh is uniformly mixed with the talcum powder of 45 mass parts, 800 mesh by mechanical agitation；5 Mass parts KH550 is added in uniformly mixed mixture, and is stirred 60 minutes at normal temperatures.Wherein, negative ion powder is quality Rare earth element, the tourmaline powder of mass percent 20% and the mixture of other minerals of percentage 65%；In talcum powder Dioxide-containing silica account for the 58% of mass percent, magnesia accounts for the 40% of mass percent.
2) preparation of polyurethane A material
After 55 DEG C, 100rpm are stirred 5-10 seconds, 40 mass parts are modified negative 100 mass parts polyether polyol by surface Ion powder and talc mixture are added in two batches in above-mentioned polyether polyol, and after stirring evenly, it is poly- to sequentially add 90 mass parts Close object polyalcohol, 2 mass parts trimethylolpropanes, 2 mass parts PC-8,3 mass parts polysiloxanes-oxyalkylene block copolymerization Object, 9 mass parts HCFC-141B continue stirring 60 minutes, obtain polyurethane A material.Wherein, the degree of functionality of polyether polyol is 3, Number-average molecular weight is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, degree of functionality 2, the equal molecule of number Amount is 4000.It measures polyurethane A and expects that viscosity is 1662mPa.s at 25 DEG C.
3) can self-heating polyurethane insole preparation
Polyurethane A material prepared by 100 mass parts previous steps stir 30 seconds under the stirring of 1000rpm, and 60 mass parts are added Poly methylene poly phenyl poly isocyanate, and poured into insole mold after being stirred 10 seconds under the stirring of 1000rpm, foaming Afterwards, curing molding 1 hour at 100 DEG C.
After measured, insole is put into corresponding shoes, and ten minutes shoe temperatures of normal ambulation can reach 38 DEG C, measures it and tears Resistance to spalling is 12.5N.mm-1：Its shrinking percentage behind at 60 DEG C 24 hours is 0.05%.
Comparative example 1：
Under similarity condition, 1) negative ion powder of 100 mass parts, 800 mesh and 3.3 mass parts KH550 stir 60 at normal temperatures Minute.Wherein, negative ion powder be the rare earth element of mass percent 65%, 20% tourmaline powder and other minerals Mixture.2) after 55 DEG C, 100rpm are stirred 5-10 seconds, 27 mass parts are modified 100 mass parts polyether polyol by surface Negative ion powder is added in two batches in above-mentioned polyether polyol, after stirring evenly, sequentially adds 90 mass parts polymer polyatomic alcohols, 2 Mass parts trimethylolpropane, 2 mass parts PC-8,3 mass parts polysiloxanes-oxyalkylene block copolymer, 9 mass parts HCFC-141B continues stirring 60 minutes, obtains polyurethane A material -2.Wherein, the degree of functionality of polyether polyol is 3, the equal molecule of number Amount is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, degree of functionality 2, number-average molecular weight 4000. It is 1882mPa.s to measure the viscosity at 25 DEG C of polyurethane A material -2.3) polyurethane A material -2 prepared by 100 mass parts previous steps exist It is stirred 30 seconds under the stirring of 1000rpm, 60 mass parts poly methylene poly phenyl poly isocyanates, and stirring in 1000rpm is added It is poured into insole mold after mixing lower stirring 10 seconds, after foaming, curing molding 1 hour at 100 DEG C.
After measured, insole is put into corresponding shoes, and ten minutes shoe temperatures of normal ambulation can reach 38 DEG C, measure its tearing Intensity is 10.8N.mm-1：By 60 DEG C of shrinking percentages after 24 hours be 0.5%.Show：Negative ion powder is held simultaneously with talcum powder The surface modifier surface of amino is modified, and can individually be reached more by the surface modifier surface modification of Amino End Group than negative ion powder High tearing strength and lower shrinking percentage.
Embodiment 2：
1) negative ion powder is modified by the surface modifier surface of Amino End Group simultaneously with talcum powder
The negative ion powder of 100 mass parts, 800 mesh is uniformly mixed with the talcum powder of 25 mass parts, 1250 mesh by mechanical agitation； 1 mass parts KH550 is added in uniformly mixed mixture, and is stirred 30 minutes at normal temperatures.Wherein, negative ion powder is quality Rare earth element, the tourmaline powder of mass percent 22% and the mixture of other minerals of percentage 65%；In talcum powder Dioxide-containing silica account for the 60% of mass percent, magnesia accounts for the 30% of mass percent.
2) preparation of polyurethane A material
After 60 DEG C, 50rpm are stirred 5-10 seconds, 10 mass parts are modified negative 100 mass parts polyether polyol by surface Ion powder and talc mixture are added in two batches in above-mentioned polyether polyol, and after stirring evenly, it is poly- to sequentially add 80 mass parts Close object polyalcohol, 1 mass parts glycerine, 1 mass parts PC-8,0.5 mass parts polysiloxanes-oxyalkylene block copolymer, 2 mass Part HCFC-141B, continues stirring 30 minutes, obtains polyurethane A material.Wherein, the degree of functionality of polyether polyol is 3, the equal molecule of number Amount is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, degree of functionality 2, number-average molecular weight 4000. It measures polyurethane A and expects that viscosity is 1262mPa.s at 25 DEG C.
3) can self-heating polyurethane insole preparation
Polyurethane A material prepared by 100 mass parts previous steps stir 10 seconds under the stirring of 1000rpm, and 40 mass parts are added Toluene di-isocyanate(TDI), and poured into insole mold after being stirred 5 seconds under the stirring of 1000rpm, after foaming, at 100 DEG C Lower curing is molded 2 hours.
After measured, insole is put into corresponding shoes, and ten minutes shoe temperatures of normal ambulation can reach 38 DEG C, measure its tearing Intensity is 14.0N.mm-1：Its shrinking percentage behind at 60 DEG C 24 hours is 0.03%.
Comparative example 2：
Under similarity condition, 1) negative ion powder of 100 mass parts, 800 mesh and 1 mass parts KH550 stir 30 points at normal temperatures Clock.Wherein, negative ion powder be the rare earth element of mass percent 65%, mass percent 22% tourmaline powder and other The mixture of minerals.2) 100 mass parts polyether polyol are after 60 DEG C, 50rpm are stirred 5-10 seconds, and 8 mass parts are by surface Modified negative ion powder is added in two batches in above-mentioned polyether polyol, and after stirring evenly, it is more to sequentially add 80 mass parts polymer First alcohol, 1 mass parts glycerine, 1 mass parts PC-8,0.5 mass parts polysiloxanes-oxyalkylene block copolymer, 2 mass parts HCFC-141B continues stirring 30 minutes, obtains polyurethane A material -2.Wherein, the degree of functionality of polyether polyol is 3, the equal molecule of number Amount is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, degree of functionality 2, number-average molecular weight 4000. It is 1378mPa.s to measure the viscosity at 25 DEG C of polyurethane A material -2.3) polyurethane A material -2 prepared by 100 mass parts previous steps exist It is stirred 10 seconds under the stirring of 1000rpm, 40 mass parts toluene di-isocyanate(TDI)s is added, and stirred 5 seconds under the stirring of 1000rpm After pour into insole mold, after foaming, at 100 DEG C curing molding 2 hours.
After measured, insole is put into corresponding shoes, and 15 minutes shoe temperatures of normal ambulation can reach 38 DEG C, measures it and tears Resistance to spalling is 12.6N.mm-1：By 60 DEG C of shrinking percentages after 24 hours be 0.3%.Show：Negative ion powder and talcum powder simultaneously by The surface modifier surface of Amino End Group is modified, and can individually be reached by the surface modifier surface modification of Amino End Group than negative ion powder Higher tearing strength and lower shrinking percentage.
Embodiment 3：
1) negative ion powder is modified by the surface modifier surface of Amino End Group simultaneously with talcum powder
The negative ion powder of 100 mass parts, 800 mesh is uniformly mixed with the talcum powder of 50 mass parts, 500 mesh by mechanical agitation；1 Mass parts A-1170 is added in uniformly mixed mixture, and is stirred 90 minutes at normal temperatures.Wherein, negative ion powder is quality Rare earth element, the tourmaline powder of mass percent 20% and the mixture of other minerals of percentage 60%；In talcum powder Dioxide-containing silica account for the 55% of mass percent, magnesia accounts for the 30% of mass percent.
2) preparation of polyurethane A material
After 50 DEG C, 200rpm are stirred 5-10 seconds, 40 mass parts are modified negative 100 mass parts polyether polyol by surface Ion powder and talc mixture are added in two batches in above-mentioned polyether polyol, and after stirring evenly, it is poly- to sequentially add 110 mass parts Close object polyalcohol, 3 mass parts diethanol amine, 3 mass parts PC-8,5 mass parts polysiloxanes-oxyalkylene block copolymer, 10 Mass parts HCFC-141B continues stirring 30 minutes, obtains polyurethane A material.Wherein, the degree of functionality of polyether polyol is 3, and number is equal Molecular weight is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, and degree of functionality 2, number-average molecular weight is 4000.It measures polyurethane A and expects that viscosity is 1732mPa.s at 25 DEG C.
3) can self-heating polyurethane insole preparation
Polyurethane A material prepared by 100 mass parts previous steps stir 60 seconds under the stirring of 1000rpm, and 100 mass parts are added Methyl diphenylene diisocyanate, and poured into insole mold after being stirred 10 seconds under the stirring of 1000rpm, after foaming, Curing molding 1.5 hours at 100 DEG C.
After measured, insole is put into corresponding shoes, and ten minutes shoe temperatures of normal ambulation can reach 38 DEG C, measure its tearing Intensity is 12.8N.mm-1：Its shrinking percentage behind at 60 DEG C 24 hours is 0.05%.
Comparative example 3：
Under similarity condition, 1) negative ion powder of 100 mass parts, 800 mesh and 1 mass parts A-1170 stir 90 points at normal temperatures Clock.Wherein, negative ion powder be the rare earth element of mass percent 65%, mass percent 22% tourmaline powder and other The mixture of minerals.2) for 100 mass parts polyether polyol after 50 DEG C, 200rpm are stirred 5-10 seconds, 40 mass parts pass through table The negative ion powder that face is modified is added in two batches in above-mentioned polyether polyol, after stirring evenly, sequentially adds 110 mass parts polymer Polyalcohol, 3 mass parts diethanol amine, 3 mass parts PC-8,5 mass parts polysiloxanes-oxyalkylene block copolymer, 10 mass Part HCFC-141B, continues stirring 30 minutes, obtains polyurethane A material -2.Wherein, the degree of functionality of polyether polyol is 3, and number is divided equally Son amount is 5000；Polymer polyatomic alcohol is styrene and acrylonitrile graft copolymer, and degree of functionality 2, number-average molecular weight is 4000.It is 1882mPa.s to measure the viscosity at 25 DEG C of polyurethane A material -2.3) polyurethane A material-prepared by 100 mass parts previous steps 2 stir 60 seconds under the stirring of 1000rpm, and 100 mass parts methyl diphenylene diisocyanates, and stirring in 1000rpm is added It is poured into insole mold after mixing lower stirring 10 seconds, after foaming, curing molding 1.5 hours at 100 DEG C.
After measured, insole is put into corresponding shoes, and 15 minutes shoe temperatures of normal ambulation can reach 38 DEG C, measures it and tears Resistance to spalling is 11.2N.mm-1：By 60 DEG C of shrinking percentages after 24 hours be 0.5%.Show：Negative ion powder and talcum powder simultaneously by The surface modifier surface of Amino End Group is modified, and can individually be reached by the surface modifier surface modification of Amino End Group than negative ion powder Higher tearing strength and lower shrinking percentage.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical solution, all should be in the protection domain being defined in the patent claims.

Claims (10)

1. it is a kind of can self-heating polyurethane insole preparation method, which is characterized in that include the following steps：
Step 1: negative ion powder is modified by the surface modifier surface of Amino End Group simultaneously with talcum powder；
Step 2: it is more that the negative ion powder and talc mixture being modified by surface that the step 1 obtains are added to polyethers In first alcohol, polyurethane A material are prepared under polymer polyatomic alcohol, crosslinking agent, catalyst, foam stabiliser, foaming agent effect；
Step 3: the obtained polyurethane A material of the step 2 and isocyanate compound be prepared it is described can self-heating it is poly- Urethane insole.
2. preparation method as described in claim 1, which is characterized in that the step 1 is specially：Negative ion powder and talcum powder It is uniformly mixed by mechanical agitation, obtains mixture one；The surface modifier of Amino End Group is added in the mixture one, often The lower stirring of temperature 30 to 90 minutes.
3. preparation method as claimed in claim 2, which is characterized in that the negative ion powder includes tourmaline powder and rare earth element Mixture, wherein tourmaline powder accounts for the 20-22% of mass percent, and rare earth element accounts for the 60-65% of mass percent；It is described The fineness of talcum powder is one kind in 500 mesh, 600 mesh, 800 mesh and 1250 mesh；Silica accounts for quality in the talcum powder The 55-60% of percentage, magnesia account for the 30-40% of mass percent.
4. preparation method as claimed in claim 2, which is characterized in that the surface modifier of the Amino End Group be KH550 and/or A-1170。
5. preparation method as claimed in claim 2, which is characterized in that negative ion powder, talcum powder and end in the step 1 The mass ratio of the surface modifier of amino is 100：25-50：1-5.
6. preparation method as described in claim 1, which is characterized in that the step 2 is specially：100 mass parts polyether polyols After 50-60 DEG C, 50-200rpm are stirred 5-10 seconds, what step 1 obtained described in addition 10-40 mass parts is modified alcohol by surface Negative ion powder and talc mixture, after stirring evenly, sequentially add 80-110 mass parts polymer polyatomic alcohol, 1-3 mass Part crosslinking agent, 1-3 mass parts of catalyst, 0.5-5 mass parts foam stabiliser, 2-10 mass parts foaming agents continue to stir 30-60 Minute.
7. preparation method as claimed in claim 6, which is characterized in that the degree of functionality of the polyether polyol is 3, the equal molecule of number Amount is 5000；The polymer polyatomic alcohol is the graft copolymer of styrene and acrylonitrile, degree of functionality 2, number-average molecular weight It is 4000.
8. preparation method as claimed in claim 6, which is characterized in that the crosslinking agent is trimethylolpropane, glycerine, diethyl One kind in hydramine；The foam stabilizer is polysiloxanes-oxyalkylene block copolymer；The foaming agent is HCFC-141B.
9. preparation method as described in claim 1, which is characterized in that the step 3 is specially：What the step 2 obtained After polyurethane A material stir 10-60 seconds under the stirring of 1000rpm, isocyanate compound is added, and in the stirring of 1000rpm After lower stirring 5-10 seconds, pour into insole mold, foam, and at 100 DEG C curing molding 1-2 hour, be prepared described in can The polyurethane insole of self-heating.
10. such as claim 1-9 any one of them preparation methods, which is characterized in that the isocyanate compound in described three For one kind in toluene di-isocyanate(TDI), methyl diphenylene diisocyanate, poly methylene poly phenyl poly isocyanate；The step The mass ratio of polyurethane A material and isocyanate compound is 100 in rapid three：40-100.
CN201810229049.2A 2018-03-20 2018-03-20 It is a kind of can self-heating polyurethane insole preparation method Pending CN108484859A (en)

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