CN104805699B - Preparation method of PU (polyurethane) coating material with far infrared emission function - Google Patents
Preparation method of PU (polyurethane) coating material with far infrared emission function Download PDFInfo
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- CN104805699B CN104805699B CN201510086149.0A CN201510086149A CN104805699B CN 104805699 B CN104805699 B CN 104805699B CN 201510086149 A CN201510086149 A CN 201510086149A CN 104805699 B CN104805699 B CN 104805699B
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Abstract
The invention provides a preparation method of a PU (polyurethane) coating material with a far infrared emission function. Firstly, polyisocyanate-grafted negative-ion powder is prepared, then 100 parts of polyol, 0.1-5 parts of poly silanediol and 8-10 parts of a chain extender are mixed and heated to the temperature of 70 DEG C, 150-300 parts of a solvent by weight are added after solids are completely molten, after the system is uniformly dispersed, 3-10 parts of the polyisocyanate-grafted negative-ion powder prepared in Step 1) are added, the mixture reacts at the temperature of 70-75 DEG C for 0.5 h, 40-50 parts of isocyanate are added, the mixture reacts at the temperature of 75-80 DEG C for 2-3 h until the viscosity of the system ranges from 70,000 cps/25 DEG C to 90,000 cps/25 DEG C, the NCO value of the system is calculated, a calculated amount of monohydric alcohol is added to terminate the system, and finally, the PU coating material is obtained. The prepared PU coating material can permanently release far infrared rays which can be easily absorbed by human bodies, and the emissivity is up to 90%.
Description
Technical field
The invention belongs to textile material field is and in particular to a kind of polyurethane coating material with far-infrared transmitting function
Preparation method.
Background technology
With the raising of people's living standard, people propose higher requirement it is desirable to be worn to the textile being worn
Textile there are various excellent einnehmen functions.
In recent years, anion powder is paid close attention to by people as a kind of new inorganic material with specific function, ion
Composition in powder body be characterized with boracic aluminum, sodium, ferrum, the silicate material of lithium circulus, isomorph is developed, because of it
Pyroelectricity and piezoelectricity are so as to polar ion vibrates in equilbrium position and causes dipole moment change to produce the electromagnetism of far infrared band
Radiation, if be added in product (such as fiber) by a certain percentage so as to by the free ion of itself, impurity ion and from
Sub- property material, impurity and two, three phonon sympathetic responses produce radiation, affect the organic ionic bond polarity interlinking with inorganic molecule vibration,
Define stronger radiation broadband, be more than 90% according to testing anion powder to far emissivity.Anion powder
Far infrared performance mainly has the following aspects to the health care of human body and other effect: 1. far infrared can accelerate moisture movement,
Make light water become activated water, so that the penetration of water, extension, dissolving power, metabolism power strengthen, and produce water conservation film.
2. far infrared, for blood circulation, can play expansion blood capillary, strengthen blood circulation, enhance metabolism, and strengthen lymph and follow
The effect of ring.3. far infrared, for cell tissue, can make cell activation, make old dead cell excretion or give regeneration capacity, can increase
Strong cellular energy, strengthens the effect such as function and vigor of cell.Therefore, anion powder is applied in weaving face fabric, such as specially
Profit 201110407892.3 discloses a kind of textile with negative ion far-infrared effect, is prepared by following steps:
Prepare anion coating agent, the aqueous solution of Deca cross-linking agent and anionic additive in polyacrylate binding agent, stirring
Uniformly, obtain final product；The aqueous solution of described cross-linking agent and anionic additive account for the weight percent score of polyacrylate binding agent
Wei 1～5% and 0.25～4%；The weight proportion that described anionic additive includes 2000～8000 mesh is 5: 1: 1～12: 1
: 1 tourmaline powder, serpentine powder body and hornblend powder body；Painting work, in base fabric, rapidly and evenly blade coating prepares
Anion coating agent, repeats to scratch to anion coating agent the hole that base fabric is completely covered；It is subsequently placed at 90～120 DEG C and dry 3
～10min, obtain final product described in there is the textile of negative ion far-infrared effect.Compared with prior art, the textile of the present invention exists
Ensure properties of textile to have while good uniformity and there is good anion releasability and far-infrared.
Polyurethane coating material is the important component part of weaving face fabric, and anion powder only organically combines polyurethane
In strand, the weaving face fabric with permanent far-infrared transmitting function could be obtained, key technology among these is how will
Anion powder organically combines in polyurethane molecular chain,
Due to the hydrophilic on anion breeze surface, the poor compatibility with polymer, so preparation has far infrared transmission
The key of the polyurethane coating material of function be add surface modifier carry out modified negative-ion breeze, with improve anion breeze with
The compatibility of polyurethane material.Disclose " a kind of in similar patent 201310481942 Jing Rong Science and Technology Ltd. of Suzhou City
Anionic polyurethane sole material ", is that just anion powder, coupling agent, antibacterial, by formula ratio, are mixed with high speed agitator
Close, obtain that anion is material modified, coupling agent wherein used be silane coupler, titanate coupling agent, aluminate coupling agent,
Aluminum titanium coupling agent and its two or more mixture, that is, so-called surface modifier.The Chinese section of patent 201110121344
Institute Hefei material science academy discloses " a kind of anion function, the preparation method of conductive polyurethane complex ", is
Put into ball grinder, ball milling after polytetrahydrofuran diol and tourmaline powder are mixed in proportion, then tourmaline powder exists
Place 7.5-8.5 hour in 220-230 DEG C of environment, obtain the tourmaline powder of surface modification, improve tourmaline powder and poly- ammonia
The compatibility of ester, thus form anion conductive polyurethane complex.
Above patent be mainly by surface modifier, anion breeze is modified reaching improve anion breeze and
The purpose of the polyurethane compatibility, but anion breeze is simply filled in polyurethane, is by intermolecular force between the two
In conjunction with formation organic whole, not have impact on the mechanical property of material to a certain extent.
In order to anion breeze be formed organic whole with polyurethane it is ensured that polyurethane applies when filling anion breeze
The mechanical property of layer keeps constant, and we utilize the hydroxyl on anion breeze surface, are allowed to the primary raw material with polyurethane material
Isocyanates react, thus defining isocyano on anion breeze surface grafting, improve anion breeze and polyurethane
The compatibility, forms organic whole.
Content of the invention
In order to solve the deficiencies in the prior art, it is an object of the invention to provide one kind has far-infrared transmitting function
Polyurethane coating material preparation method, simple to operate, economically feasible.
The technical scheme that technical scheme is taken is as follows:
1) polyisocyanates is grafted the preparation of anion powder
By 100 parts of anion powder after 100-120 DEG C of drying and processing 30-120min, add the many benzene of 1-5 part polymethylene
Based isocyanate (papi), continues high-speed stirred 30-180min at 100-120 DEG C, and cooling obtains polyisocyanates grafting
Anion powder；
2) preparation of polyurethane coating material
After the chain extender of 100 parts of polyhydric alcohol (weight portion, similarly hereinafter), the poly- silicon diol of 0.1-5 part and 8-10 part is mixed,
Intensification is heated to 70 DEG C, adds the solvent of 150-300 part after solid melts completely, and system adds 3-10 part step after being uniformly dispersed
The anion powder of polyisocyanates prepared by rapid 1) grafting, after reaction 0.5h at 70 ~ 75 DEG C, adds the Carbimide. of 40-50 part
Ester reacts 2-3h at 75 ~ 80 DEG C and is 7 ~ 90,000 cps/25 DEG C to system viscosity, the nco value of counting system, and the one of addition amount of calculation
System is blocked by first alcohol, finally gives polyurethane coating material.
3) performance test: after tested, the far-infrared transmitting function of the present invention is can launch wavelength being easy to for 2 ~ 18 microns
The far infrared being absorbed by the body, its emissivity is up to 90%；
Anion breeze of the present invention is tourmaline powder, and its mesh number is 1000-3000 mesh, and anion burst size is
10000/cm3；
Polyhydric alcohol of the present invention refers to PEPA；
Isocyanates of the present invention refer to toluene di-isocyanate(TDI) (tdi), methyl diphenylene diisocyanate
(mdi), polymethylene multi-phenenyl isocyanate (papi), isophorone diisocyanate (ipdi), 1,6- di-isocyanate
(hdi), XDI (xdi), PPDI (ppdi), naphthalene -1,5- diisocyanate (ndi)
One or more；
Chain extender of the present invention refers to hexanediol and BDO, and their weight is than for 1:1；
Solvent of the present invention refer to butanone, dmf one or more；
Monohydric alcohol of the present invention refer to methanol, ethanol, isopropanol one or more；
Present invention has the advantage that
Anion breeze organically combines in polyurethane molecular chain, and the polyurethane coating material of preparation can permanently discharge easily
In the far infrared being absorbed by the body, emissivity is up to 90%.
Specific embodiment
The following is several specific embodiments of the present invention, further illustrate the present invention, but the present invention is not limited only to this.
Embodiment 1
By 100 parts of anion powder after 110 DEG C of drying and processing 100min, add 3 parts of polymethylene polyphenyl Carbimide .s
Ester (papi), continues high-speed stirred 180min at 110 DEG C, and cooling obtains the anion powder of polyisocyanates grafting；
BDO by 100 parts of polyhydric alcohol (weight portion, similarly hereinafter), 3 parts of poly- silicon diol, 4 parts of hexanediol and 4 parts
After mixing, heat up and be heated to 70 DEG C, add 200 parts of dmf and butanone mixed solvent after solid melts completely, system dispersion is all
Add the anion powder of the polyisocyanates grafting of 5 parts of above-mentioned steps preparation after even, after reaction 0.5h at 70 ~ 75 DEG C, add
45 parts of tdi reacts 2-3h at 75 ~ 80 DEG C and is 7 ~ 90,000 cps/25 DEG C to system viscosity, and the nco value of counting system adds and counts
System is blocked by the ethanol of calculation amount, finally gives polyurethane coating material.
Embodiment 2
By 100 parts of anion powder after 120 DEG C of drying and processing 50min, add 5 parts of polymethylene multi-phenenyl isocyanates
(papi), continue high-speed stirred 30min at 120 DEG C, cooling obtains the anion powder of polyisocyanates grafting.
By the Isosorbide-5-Nitrae of 100 parts of PEPAs (weight portion, similarly hereinafter), 0.1 part of poly- silicon diol, 5 parts of hexanediol and 5 parts-
After butanediol mixing, heat up and be heated to 70 DEG C, add 300 parts of dmf solvent after solid melts completely, after system is uniformly dispersed
Add the anion powder of the polyisocyanates grafting of 10 parts of above-mentioned preparations, after reaction 0.5h at 70 ~ 75 DEG C, add 50 parts
Mdi reacts 2-3h at 75 ~ 80 DEG C and is 7 ~ 90,000 cps/25 DEG C to system viscosity, the nco value of counting system, addition amount of calculation
System is blocked by methanol, finally gives polyurethane coating material.
Claims (7)
1. a kind of preparation method of the polyurethane coating material with far-infrared transmitting function is it is characterised in that comprise the concrete steps that:
1) polyisocyanates is grafted the preparation of anion powder
By 100 parts of anion powder after 100-120 DEG C of drying and processing 30-120min, add 1-5 part polymethylene polyphenyl different
Cyanate (papi), continue at 100-120 DEG C high-speed stirred 30-180min, cooling obtain polyisocyanates grafting bear from
Sub- powder；
2) preparation of polyurethane coating material
After the chain extender of 100 parts of polyhydric alcohol, the poly- silicon diol of 0.1-5 part and 8-10 part is mixed, heat up and be heated to 70 DEG C, treat
Solid adds the solvent of 150-300 part after melting completely, system adds many isocyanides of 3-10 part step 1) preparation after being uniformly dispersed
The anion powder of acid esters grafting, after reaction 0.5h at 70 ~ 75 DEG C, adds the isocyanates of 40-50 part to react at 75 ~ 80 DEG C
2-3h is 7 ~ 90,000 cps/25 DEG C to system viscosity, the nco value of counting system, and system is blocked, by the monohydric alcohol of addition amount of calculation
Obtain polyurethane coating material eventually.
2. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The anion powder being characterised by described is tourmaline powder, and its mesh number is 1000-3000 mesh, anion burst size is 10000/
cm3.
3. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The polyhydric alcohol being characterised by described refers to PEPA.
4. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The isocyanates being characterised by described refer to toluene di-isocyanate(TDI) (tdi), methyl diphenylene diisocyanate (mdi), how sub-
The many phenyl isocyanate of methyl (papi), isophorone diisocyanate (ipdi), 1,6- di-isocyanate (hdi), benzene two
Methylene diisocyanate (xdi), PPDI (ppdi), naphthalene -1, one kind or several of 5- diisocyanate (ndi)
Kind.
5. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The chain extender being characterised by described refers to hexanediol and BDO, and their weight ratio is for 1:1.
6. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The solvent being characterised by described refer to butanone, dmf one or more.
7. the preparation method of a kind of polyurethane coating material with far-infrared transmitting function according to claim 1, its
The monohydric alcohol being characterised by described refer to methanol, ethanol, isopropanol one or more.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107227136A (en) * | 2017-06-29 | 2017-10-03 | 东莞市伟欣高分子材料有限公司 | A kind of glue formula of negative oxygen ion function fabric and preparation method thereof |
| CN108484859A (en) * | 2018-03-20 | 2018-09-04 | 泉州市安仕登鞋服有限公司 | It is a kind of can self-heating polyurethane insole preparation method |
| CN109403055A (en) * | 2018-09-29 | 2019-03-01 | 中国第汽车股份有限公司 | The preparation method of automotive seat negative oxygen ion corium mask and micro fiber leather mask |
| CN109371707A (en) * | 2018-09-29 | 2019-02-22 | 中国第汽车股份有限公司 | A kind of preparation method of antifouling negative ion fabric mask |
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| CN102517902B (en) * | 2011-12-09 | 2013-06-12 | 水经(上海)生物科技有限公司 | Textile having negative ion and far-infrared functions |
| CN103305114A (en) * | 2012-03-07 | 2013-09-18 | 尚会立 | Negative-ion far-infrared waterborne polyurethane coating |
| CN103360657A (en) * | 2012-03-31 | 2013-10-23 | 中国科学院合肥物质科学研究院 | Composite material with negative ion releasing function and preparation method thereof |
| CN104262941A (en) * | 2014-08-28 | 2015-01-07 | 王晓伟 | Carbon nanotube/anion powder-modified polymer material |
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