CN102061146A - Nanometer negative ion solid-solid phase change energy storage material - Google Patents
Nanometer negative ion solid-solid phase change energy storage material Download PDFInfo
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- CN102061146A CN102061146A CN200910206490XA CN200910206490A CN102061146A CN 102061146 A CN102061146 A CN 102061146A CN 200910206490X A CN200910206490X A CN 200910206490XA CN 200910206490 A CN200910206490 A CN 200910206490A CN 102061146 A CN102061146 A CN 102061146A
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Abstract
The invention relates to a preparation method of a nanometer negative ion solid-solid phase change energy storage material. The invention is characterized in that the material comprises the following components in parts by weight: 50-90 parts of polyethylene glycol (PEG), 10-50 parts of isocyanate and hydroxy compound or polyol and 0.5-15 parts of nanometer negative ion additive. The energy storage material prepared by the method has obviously higher heat storage capacity, heat conductivity and heat stability compared with the traditional polyurethane solid-solid phase change energy storage material, has the functions of releasing negative ions, continuously resisting and killing bacteria, emitting far infrared rays and the like and is beneficial to human health. The material can be widely used in the fields such as building energy conservation, thermoregulation fabrics, electronic equipment, power peak regulation, medical care and modern agriculture and the like.
Description
Technical field
The present invention relates to a kind of preparation method of anion nanometer solid-solid phase-change energy-storage material.The anion nanometer solid-solid phase-change energy-storage material of this method preparation has tangible raising than traditional urethane solid-solid phase-change energy-storage material aspect heat storage capacity, thermal conductivity and the thermostability, and has the release negative ion, continue antibiotic and sterilizing, functions such as emission far infrared are of value to HUMAN HEALTH.
Background technology
The phase-changing energy storage material technology is hot in recent years field and the emerging research focus of field of new, and this technology has important use to be worth to energy-conservation, solution energy shortage, raising people's living standard.Phase-changing energy storage material is meant in its thing phase change process, can from environment, absorb heat (cold) amount or in environment, emit heat (cold) amount, thereby reach the purpose of the storage and the release of energy, compare with the sensible heat energy storage, phase-change accumulation energy has that energy storage density height, volume are small and exquisite, temperature control is constant, energy-saving effect significantly, the transformation temperature range of choice is wide, be easy to advantage such as control.
The polyurethane blocks solid-solid phase transition material has reached relevant scholar's attention, has obtained development fast.But still exist some problems to need to be resolved hurrily, and lower such as the phase transformation enthalpy, thermal conductivity is low, and function singleness, thermostability have much room for improvement etc.Therefore, improve heat storage capacity, improve thermal conductivity, improve thermostability, developing the multi-functional phase change material that also has other function except that having the phase-change accumulation energy function (but but as the phase change material of the phase change material of conduction phase change material microwave heating, waterproof phase change material sterilization and insect prevention moth, shape memory phase change material, negative ion phase change material etc.), will be emphasis of future research.
Summary of the invention
The present invention relates to a kind of preparation method of anion nanometer solid-solid phase-change energy-storage material.The anion nanometer solid-solid phase-change energy-storage material of this method preparation has tangible raising than traditional polyurethane blocks solid-solid phase-change energy-storage material aspect heat storage capacity and the thermostability, and has the release negative ion, continue antibiotic and sterilizing, functions such as emission far infrared are of value to HUMAN HEALTH.This material can be widely used in fields such as building energy conservation, temperature adjustment fabric, electronics, power peak regulation, health care and modern agriculture.
The present invention addresses the above problem and realizes that the method for above-mentioned purpose is with the solid-solid phase-change on the segmented polyurethane realization macroscopic view, be soft section with polyoxyethylene glycol and carry out energy storage, and the composite Nano anionic additive is to realize discharging negative ion in polyoxyethylene glycol, continue antibiotic and sterilizing, functions such as emission far infrared.
The preparation method of anion nanometer solid-solid phase-change energy-storage material follows these steps to carry out successively:
(1) after dry 24 hours, 30-60 ℃ of constant temperature is dissolved in proper amount of acetone to the preparation of prepolymer: PEG (molecular weight 1000-20000,50-90 part), adds nanometer anionic additive (0.5-15 part) and stirs, and makes acetone soln with silica-gel drier; Isocyanic ester (amount of substance of isocyano is 1～1.5 times of amount of substance of hydroxyl in PEG and oxy-compound (as polyether glycol) or the polyol) is dissolved in proper amount of acetone; under nitrogen protection, join the acetone soln of PEG; stir, reflux 2-3 hour, get prepolymer.
(2) as calculated the add-on of oxy-compound (as polyether glycol) or polyol.30-60 ℃ of constant temperature is got an amount of oxy-compound, makes acetone soln, adds in the pre-polymer solution.Under the nitrogen protection, stir reflux 2-3 hour.Steam part acetone,, get product 40-80 ℃ of oven dry of gained solution 24-48 hour.
Advantage of the present invention is to have tangible raising with the anion nanometer solid-solid phase-change energy-storage material of this method preparation aspect heat storage capacity, thermal conductivity and the thermostability than traditional polyurethane blocks solid-solid phase-change energy-storage material with positively effect, and has the release negative ion, continue antibiotic and sterilizing, functions such as emission far infrared are of value to HUMAN HEALTH.This material can be widely used in fields such as building energy conservation, temperature adjustment fabric, electronics, power peak regulation, health care and modern agriculture.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment 1
(1) after dry 24 hours, constant temperature is dissolved in proper amount of acetone for 40 ℃ to PEG (10000,89 parts of molecular weight), adds nanometer anionic additive (0.2 part) and stirs, and makes acetone soln with silica-gel drier; TDI (6 parts, the amount of substance of isocyano is 1.05 times of amount of substance of hydroxyl in PEG and the polyether glycol) is dissolved in proper amount of acetone, joins the acetone soln of PEG under nitrogen protection, stir, reflux 2 hours, prepolymer.
(2) as calculated the add-on of polyether glycol.Constant temperature is got an amount of polyether glycol for 40 ℃, makes acetone soln, adds in the pre-polymer solution.Under the nitrogen protection, stir reflux 2 hours.Steam part acetone,, get the anion nanometer solid-solid phase-change energy-storage material 70 ℃ of oven dry of gained solution 24 hours.
Embodiment 2:
Processing method step according to the foregoing description 1 is adjusted into MDI with TDI.
Embodiment 3:
Processing method step according to the foregoing description 1 is adjusted into tetramethylolmethane with polyether glycol.
Embodiment 4:
Processing method step according to the foregoing description 1 replaces with PEG6000 with PEG10000.
Claims (7)
1. the preparation method of anion nanometer solid-solid phase-change energy-storage material, it is characterized in that forming: polyoxyethylene glycol (PEG) 50-90 part (mass parts) by following prescription, isocyanic ester+oxy-compound or polyol 10-50 part, nano-negative ion additive 0.5-15 part; The anion nanometer solid-solid phase-change energy-storage material has tangible raising than traditional polyurethane blocks solid-solid phase-change energy-storage material aspect heat storage capacity, thermal conductivity and the thermostability, and has the release negative ion, continue antibiotic and sterilizing, functions such as emission far infrared.
2. anion nanometer solid-solid phase-change energy-storage material according to claim 1 is soft section of polyoxyethylene glycol (molecular weight 2000-20000) and segmented polyurethane block copolymerization, and adds the polymkeric substance of anion nanometer additive in right amount.
3. isocyanic ester according to claim 1 is tolylene diisocyanate (TDI), the ditan-4 that is used to prepare urethane, 4 '-vulcabond (MDI), connect (two) fennel vulcabond (DADI), hexamethylene diisocyanate (HDI), an xylylene diisocyanate (M-XDI), 1,5 '-naphthalene diisocyanate (NDI), polymethine polyphenyl polyisocyanate (PAPI) are a series of to have isocyanate groups (NC0) a kind of, two kinds or a two or more blended organic compound.
4. oxy-compound according to claim 1 or polyol are a kind of, two or more blended compounds of the dibasic alcohol, trivalent alcohol, polyvalent alcohol, polyethers, polyether glycol and a series of hydroxyls of polyester polyol that are used to prepare urethane.
5. nano-negative ion additive according to claim 1 be have natural crystal six ring stone, the tourmalinite of nanoporous or opal is a kind of or two, three kind broken through nano ultrafine powders, after the stage treatment, particle dia is at the powder of 200-10000nm.
6. the preparation method of anion nanometer solid-solid phase-change energy-storage material according to claim 1, follow these steps to successively carry out: the preparation of (1) prepolymer: PEG (molecular weight 1000-20000,50-90 part) use silica-gel drier after dry 24 hours, 30-60 ℃ of constant temperature is dissolved in proper amount of acetone, add nanometer anionic additive (0.5-15 part) and stir, make acetone soln; Isocyanic ester (amount of substance of isocyano is 1～1.5 times of amount of substance of hydroxyl in PEG and oxy-compound (as polyether glycol) or the polyol) is dissolved in proper amount of acetone; under nitrogen protection, join the acetone soln of PEG; stir, reflux 2-3 hour, get prepolymer.
(2) as calculated the add-on of oxy-compound (as polyether glycol) or polyol.Get an amount of oxy-compound for constant temperature 30-60 ℃, make acetone soln, add in the pre-polymer solution.Under the nitrogen protection, stir reflux 2-3 hour.Steam part acetone,, get product 40-80 ℃ of oven dry of gained solution 24-48 hour.
7. release negative ion according to claim 1 continues antibiotic and sterilizing, launches far function, and the anion number that it is characterized in that discharging is at 1000/cm
3More than, far emittance is of value to HUMAN HEALTH more than 0.8.The anion nanometer solid-solid phase-change energy-storage material can be widely used in fields such as building energy conservation, temperature adjustment fabric, electronics, power peak regulation, health care and modern agriculture.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131456A (en) * | 2014-07-01 | 2014-11-05 | 广德天运无纺有限公司 | Method for producing negative ion inner decoration material of automobile |
| CN104497317A (en) * | 2014-02-25 | 2015-04-08 | 秦皇岛出入境检验检疫局煤炭检测技术中心 | Agricultural negative ion phase change energy storage material sheet |
| CN108102613A (en) * | 2017-11-28 | 2018-06-01 | 大连理工大学 | A kind of anti-mildew organic composite shaping phase-change material and preparation method thereof |
| CN108624296A (en) * | 2018-07-11 | 2018-10-09 | 桂林电子科技大学 | A kind of composite solid-solid phase-change and preparation method thereof of boron nitride enhancing heat conduction |
| CN108865074A (en) * | 2018-06-07 | 2018-11-23 | 太仓萃励新能源科技有限公司 | A kind of nano-negative ion cold-storage material |
-
2009
- 2009-11-18 CN CN200910206490XA patent/CN102061146A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104497317A (en) * | 2014-02-25 | 2015-04-08 | 秦皇岛出入境检验检疫局煤炭检测技术中心 | Agricultural negative ion phase change energy storage material sheet |
| CN104131456A (en) * | 2014-07-01 | 2014-11-05 | 广德天运无纺有限公司 | Method for producing negative ion inner decoration material of automobile |
| CN104131456B (en) * | 2014-07-01 | 2016-03-02 | 广德天运新技术股份有限公司 | Negative ion automobile inner decoration material manufacturing method |
| CN108102613A (en) * | 2017-11-28 | 2018-06-01 | 大连理工大学 | A kind of anti-mildew organic composite shaping phase-change material and preparation method thereof |
| CN108865074A (en) * | 2018-06-07 | 2018-11-23 | 太仓萃励新能源科技有限公司 | A kind of nano-negative ion cold-storage material |
| CN108624296A (en) * | 2018-07-11 | 2018-10-09 | 桂林电子科技大学 | A kind of composite solid-solid phase-change and preparation method thereof of boron nitride enhancing heat conduction |
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Application publication date: 20110518 |