CN104531145A - Method for preparing bamboo strip/strontium aluminate fluorescent powder composite material - Google Patents
Method for preparing bamboo strip/strontium aluminate fluorescent powder composite material Download PDFInfo
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- CN104531145A CN104531145A CN201410831551.2A CN201410831551A CN104531145A CN 104531145 A CN104531145 A CN 104531145A CN 201410831551 A CN201410831551 A CN 201410831551A CN 104531145 A CN104531145 A CN 104531145A
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Abstract
The invention relates to a method for preparing a bamboo strip/strontium aluminate fluorescent powder composite material. The method for preparing the bamboo strip/strontium aluminate fluorescent powder composite material comprises the following steps: 1, pre-treating bamboo strips; 2, pre-treating strontium aluminate phosphor powder; and 3, compounding the bamboo strips and strontium aluminate phosphor powder: mixing, reacting and drying the bamboo strips and strontium aluminate phosphor powder to obtain the bamboo strip/strontium aluminate fluorescent powder composite micro-light-source material. According to the method, by adopting moso bamboo strips as base materials, such paths as vessels, screen pipes and pits and physical and chemical methods, strontium aluminate phosphor powder and moso bamboo strips are compounded so as to achieve a good micro-light-source material with the bamboo material as a light source carrier, potential safety hazards to the environment and human cannot be caused and the composite material has long service life and the method is energy-saving and environment-friendly and has better practical application value and promotional value.
Description
Technical field
The invention belongs to technical field of composite materials, the preparation method of particularly a kind of bamboo chip/strontium aluminate fluorescent material matrix material.
Background technology
Light is inseparable with the life of the mankind, but from the angle of save energy, some specific occasion does not need too bright lamplight, as the plank road, the lobby in park, the view of quiet place etc. of river bank, if be aided with fluorescence under similar environment, not only may be used for instruction at night, while energy-conserving and environment-protective, also possess higher sight.
Fluorescent material is as the important light-light conversion material of a class, and its luminosity and time of persistence etc., performance all reached actual operation requirements, and as strontium aluminate fluorescent material, its twilight sunset, for up to 8 hours, has good energy storage effect.
Adopt commercially available fluorescent paint and bamboo wood to combine for physically in prior art, although easy to use, but there is following problem: 1, work-ing life is shorter; 2, inevitably there is various organic solvent in fluorescent paint, can have potential potential safety hazard to environment and the mankind.In addition, at present in technical field of composite materials, there is not yet the relevant report about bamboo chip/strontium aluminate fluorescent material matrix material.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect how overcoming prior art, provides the preparation method of a kind of bamboo chip/strontium aluminate fluorescent material matrix material; By with mao bamboon bamboo chip for base material, by paths such as its conduit, screen casing and pits, and by physical chemistry method by strontium aluminate fluorescent material and mao bamboon bamboo chip compound, realize the good low-light source material of bamboo wood as light source carrier.
In addition, this invention also solves the hydrolytic action of strontium aluminate fluorescent material after the strontium aluminate fluorescent material skewness problem on bamboo chip surface existing for preparation a kind of bamboo chip/strontium aluminate fluorescent material matrix material, the shorter problem of strontium aluminate fluorescent material sunset glow duration and the coated process of moisture effects on surface and the bamboo chip of the coated even compound of strontium aluminate fluorescent material to occur to ftracture in drying process and the problem such as warpage.
Technical scheme of the present invention is as follows:
The preparation method of this kind of bamboo chip/strontium aluminate fluorescent material matrix material, comprises the following steps:
1, bamboo chip pre-treatment:
1.1, flood: mao bamboon bamboo chip is flooded in water to its water ratio and reach 35-50%;
1.2, microwave explosion: the mao bamboon bamboo chip of dip treating is carried out microwave explosion treatment, obtains pre-treatment bamboo chip;
2, strontium aluminate fluorescent material pre-treatment:
Surface coating process: adopt the process of inorganic oxide cladding process, obtain coated strontium aluminate fluorescent material product;
3, bamboo chip and strontium aluminate fluorescent material compound:
3.1, mix: get the pre-treatment bamboo chip that mass ratio is 10-30:1:60-140, coated strontium aluminate fluorescent material and ethanolic soln, by above-mentioned mass ratio, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, in ultrasonic wave, ultrasonic 5-10 minute makes coated strontium aluminate fluorescent material be uniformly dispersed, add the pre-treatment bamboo chip of above-mentioned mass ratio again, obtain mixture;
3.2, react: gained mixture in step 3.1 is moved to initial action 30-90 minute in magnetic stirring apparatus, refills in stainless steel pressurized tank, after regulating pressure to 0.6MPa by air compressor, room temperature constant voltage reacts 85-100 minute again;
3.3, dry: to take out the bamboo chip dry 8-15 hour in radio-frequency drying case with the coated even compound of strontium aluminate fluorescent material in step 3.2, drying process is divided into two stages, first stage adopts high temperature method fast, and Heating temperature is 80 ± 2 DEG C, and the time is 4 hours; Subordinate phase adopts low temperature method at a slow speed, and Heating temperature is 60 ± 2 DEG C, and the time is 4 ~ 11 hours, obtains bamboo chip/strontium aluminate fluorescent material compound low-light source material.
As optimization, described step 1 1.2 in the output rating of microwave explosion treatment be 8-11kW, the treatment time is 120-210s.
As optimization, described step 2 2.1 in the inorganic oxide cladding process that adopts be coated with silica modification method, the concrete steps of described coated with silica modification method are:
A, hydrolysis: get tetraethoxy, water, ethanol that mass ratio is 1:28-32:28-32, by above-mentioned mass ratio, second alcohol and water is mixed, obtain aqueous ethanolic solution, the tetraethoxy getting above-mentioned mass ratio is dissolved in aqueous ethanolic solution, then nitric acid adjust ph to 1 ~ 2 are dripped, then drip ammoniacal liquor adjust ph to neutral, obtain mixed liquor A;
B, coated: strontium aluminate fluorescent material, urea and water that mass ratio is 1-2:1:13 will to be added in mixed liquor A, and obtain mixed liquid B, stir 1 hour under mixed liquid B being placed in 95 ± 2 DEG C of isoperibols, be cooled to room temperature afterwards;
C, suction filtration are separated: mixed liquid B washed 10-15 time respectively with distilled water and ethanolic soln, obtain mixed solution C;
D, drying: by mixed solution C dry 10-15 hour at 80 ± 2 DEG C, finally obtain coated strontium aluminate fluorescent material product.
As optimization, described step 3 3.1 in pre-treatment bamboo chip, coated strontium aluminate fluorescent material, ethanolic soln mass ratio be 12-20:1:80-120.
As optimization, the water ratio of the 3.3 gained bamboo chips/strontium aluminate fluorescent material compound low-light source material of described step 3 is 10-15%.
The beneficial effect of the preparation method of a kind of bamboo chip of the present invention/strontium aluminate fluorescent material matrix material is:
First, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, supersound process makes coated strontium aluminate fluorescent material be uniformly dispersed, add pre-treatment bamboo chip again, be convenient to obtain uniform mixture, thus finally obtain the equally distributed bamboo chip of coated strontium aluminate fluorescent material/strontium aluminate fluorescent material matrix material; Secondly, moved to by mixture in magnetic stirring apparatus and carry out initial reaction, mixture carries out uniform stirring at magnetic stirring apparatus, the strontium aluminate fluorescent material on bamboo chip surface is distributed comparatively even; Air pressurized method is adopted to make the strontium aluminate fluorescent material distribution uniform again on bamboo chip surface; In addition, the above-mentioned mass ratio of the present invention and the processing parameter in reaction times can increase strontium aluminate fluorescent material sunset glow duration; In addition, adopt the method for radio-frequency drying that bamboo chip is heated more even, and moisture is spread by bamboo chip interior, coordinate the high temperature fast method of first stage, most moisture can be removed within the regular hour, thus the efficient moisture that reduces is to the hydrolytic action of strontium aluminate fluorescent material, and the low temperature slow method of subordinate phase is that the major defects such as cracking and warpage occur in drying process in order to avoid bamboo chip; Finally, the present invention passes through with mao bamboon bamboo chip as base material, by paths such as its conduit, screen casing and pits, and by physical chemistry method by strontium aluminate fluorescent material and mao bamboon bamboo chip compound, realize the good low-light source material of bamboo wood as light source carrier, can not cause potential safety hazard to environment and the mankind, and work-ing life is longer, energy-conserving and environment-protective; There is good actual application value and promotional value.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, the present invention is described in more detail below.
embodiment 1:
The preparation method of this kind of bamboo chip/strontium aluminate fluorescent material matrix material, comprises the following steps:
1, bamboo chip pre-treatment:
1.1, mao bamboon bamboo chip is flooded 6 hours in water, reach 35 ± 2% to its water ratio;
1.2, the mao bamboon bamboo chip of dip treating is carried out microwave explosion treatment, the output rating of microwave explosion treatment is 11kW, and the treatment time is 210s, obtains pre-treatment bamboo chip;
2, strontium aluminate fluorescent material pre-treatment:
Adopt the coated process of inorganic oxide cladding process, obtain coated strontium aluminate fluorescent material product, the inorganic oxide cladding process adopted is coated with silica modification method, and the concrete steps of described coated with silica modification method are:
A: get tetraethoxy, water, ethanol that mass ratio is 1:28:28, by above-mentioned mass ratio, second alcohol and water is mixed, obtain aqueous ethanolic solution, the tetraethoxy getting above-mentioned mass ratio is dissolved in aqueous ethanolic solution, then nitric acid adjust ph to 1 is dripped, then drip ammoniacal liquor adjust ph to neutral, obtain mixed liquor A;
B: will add strontium aluminate fluorescent material, urea and water that mass ratio is 1.3:1:13 in mixed liquor A, and obtain mixed liquid B, stirs 1 hour under mixed liquid B being placed in 95 ± 2 DEG C of isoperibols, is cooled to room temperature afterwards;
C: suction filtration is separated: respectively mixed liquid B is washed 10 times with distilled water and ethanolic soln, obtain mixed solution C;
D: dry: by mixed solution C at 80 ± 2 DEG C dry 10 hours, finally obtain coated strontium aluminate fluorescent material product;
3, bamboo chip and strontium aluminate fluorescent material compound:
3.1, mix: get the pre-treatment bamboo chip that mass ratio is 16:1:100, coated strontium aluminate fluorescent material and ethanolic soln, by above-mentioned mass ratio, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, coated strontium aluminate fluorescent material was uniformly dispersed in ultrasonic 5 minutes in ultrasonic wave, add the pre-treatment bamboo chip of above-mentioned mass ratio again, obtain mixture;
3.2, react: gained mixture in step 3.1 to be moved in magnetic stirring apparatus initial action 30 minutes, refill in stainless steel pressurized tank, after regulating pressure to 0.6MPa by air compressor, room temperature constant voltage reacts 85 minutes again;
3.3, dry: to take out in step 3.2 with the bamboo chip of the coated even compound of strontium aluminate fluorescent material in radio-frequency drying case dry 8 hours, drying process is divided into two stages, first stage adopts high temperature method fast, and Heating temperature is 80 ± 2 DEG C, and the time is 4 hours; Subordinate phase adopts low temperature method at a slow speed, and Heating temperature is 60 ± 2 DEG C, and the time is 4 hours, obtains bamboo chip/strontium aluminate fluorescent material compound low-light source material, and controlling water ratio is 10 ± 2%, and its performance index are listed in table 1.
embodiment 2:
The preparation method of this kind of bamboo chip/strontium aluminate fluorescent material matrix material, comprises the following steps:
1, bamboo chip pre-treatment:
1.1, mao bamboon bamboo chip is flooded 8 hours in water, reach 45 ± 2% to its water ratio;
1.2, the mao bamboon bamboo chip of dip treating is carried out microwave explosion treatment, the output rating of microwave explosion treatment is 9kW, and the treatment time is 180s, obtains pre-treatment bamboo chip;
2, strontium aluminate fluorescent material pre-treatment:
Adopt the coated process of inorganic oxide cladding process, obtain coated strontium aluminate fluorescent material product, concrete steps are as follows:
A: get tetraethoxy, water, ethanol that mass ratio is 1:30:30, by above-mentioned mass ratio, second alcohol and water is mixed, obtain aqueous ethanolic solution, the tetraethoxy getting above-mentioned mass ratio is dissolved in aqueous ethanolic solution, then nitric acid adjust ph to 2 is dripped, then drip ammoniacal liquor adjust ph to neutral, obtain mixed liquor A;
B: will add strontium aluminate fluorescent material, urea and water that mass ratio is 1:1:13 in mixed liquor A, and obtain mixed liquid B, stirs 1 hour under mixed liquid B being placed in 95 ± 2 DEG C of isoperibols, is cooled to room temperature afterwards;
C: suction filtration is separated: respectively mixed liquid B is washed 12 times with distilled water and ethanolic soln, obtain mixed solution C;
D: dry: by mixed solution C at 80 ± 2 DEG C dry 13 hours, finally obtain coated strontium aluminate fluorescent material product;
3, bamboo chip and strontium aluminate fluorescent material compound:
3.1, mix: get the pre-treatment bamboo chip that mass ratio is 20:1:80, coated strontium aluminate fluorescent material and ethanolic soln, by above-mentioned mass ratio, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, coated strontium aluminate fluorescent material was uniformly dispersed in ultrasonic 8 minutes in ultrasonic wave, add the pre-treatment bamboo chip of above-mentioned mass ratio again, obtain mixture;
3.2, react: gained mixture in step 3.1 to be moved in magnetic stirring apparatus initial action 60 minutes, refill in stainless steel pressurized tank, after regulating pressure to 0.6MPa by air compressor, room temperature constant voltage reacts 95 minutes again;
3.3, dry: to take out in step 3.2 with the bamboo chip of the coated even compound of strontium aluminate fluorescent material in radio-frequency drying case dry 13.5 hours, drying process is divided into two stages, first stage adopts high temperature method fast, and Heating temperature is 80 ± 2 DEG C, and the time is 4 hours; Subordinate phase adopts low temperature method at a slow speed, and Heating temperature is 60 ± 2 DEG C, and the time is 9.5 hours, obtains bamboo chip/strontium aluminate fluorescent material compound low-light source material, and controlling water ratio is 13 ± 2%, and its performance index are listed in table 1.
embodiment 3:
The preparation method of this kind of bamboo chip/strontium aluminate fluorescent material matrix material, comprises the following steps:
1, bamboo chip pre-treatment:
1.1, mao bamboon bamboo chip is flooded 10 hours in water, reach 50 ± 2% to its water ratio;
1.2, the mao bamboon bamboo chip of dip treating is carried out microwave explosion treatment, the output rating of microwave explosion treatment is 8kW, and the treatment time is 120s, obtains pre-treatment bamboo chip;
2, strontium aluminate fluorescent material pre-treatment:
Adopt the coated process of inorganic oxide cladding process, obtain coated strontium aluminate fluorescent material product, concrete steps are as follows:
A: get tetraethoxy, water, ethanol that mass ratio is 1:32:32, by above-mentioned mass ratio, second alcohol and water is mixed, obtain aqueous ethanolic solution, the tetraethoxy getting above-mentioned mass ratio is dissolved in aqueous ethanolic solution, then nitric acid adjust ph to 1 is dripped, then drip ammoniacal liquor adjust ph to neutral, obtain mixed liquor A;
B: will add strontium aluminate fluorescent material, urea and water that mass ratio is 2:1:13 in mixed liquor A, and obtain mixed liquid B, stirs 1 hour under mixed liquid B being placed in 95 ± 2 DEG C of isoperibols, is cooled to room temperature afterwards;
C: suction filtration is separated: respectively mixed liquid B is washed 13 times with distilled water and ethanolic soln, obtain mixed solution C;
D: dry: by mixed solution C at 80 ± 2 DEG C dry 15 hours, finally obtain coated strontium aluminate fluorescent material product;
3, bamboo chip and strontium aluminate fluorescent material compound:
3.1, mix: get the pre-treatment bamboo chip that mass ratio is 12:1:120, coated strontium aluminate fluorescent material and ethanolic soln, by above-mentioned mass ratio, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, coated strontium aluminate fluorescent material was uniformly dispersed in ultrasonic 10 minutes in ultrasonic wave, add the pre-treatment bamboo chip of above-mentioned mass ratio again, obtain mixture;
3.2, react: gained mixture in step 3.1 to be moved in magnetic stirring apparatus initial action 90 minutes, refill in stainless steel pressurized tank, after regulating pressure to 0.6MPa by air compressor, room temperature constant voltage reacts 100 minutes again;
3.3, dry: to take out in step 3.2 with the bamboo chip of the coated even compound of strontium aluminate fluorescent material in radio-frequency drying case dry 15 hours, drying process is divided into two stages, first stage adopts high temperature method fast, and Heating temperature is 80 ± 2 DEG C, and the time is 4 hours; Subordinate phase adopts low temperature method at a slow speed, and Heating temperature is 60 ± 2 DEG C, and the time is 11 hours, obtains bamboo chip/strontium aluminate fluorescent material compound low-light source material, and controlling water ratio is 15 ± 2%, and its performance index are listed in table 1.
comparative example 1:adopt Commercial optical paint to cover with paint, lacquer, colour wash, etc. in bamboo material surface for physically in conjunction with the energy-saving luminous material of gained equivalent weight part, its performance index are listed in table 1, compare with embodiment 1-3, and it adopts Commercial optical paint to cover with paint, lacquer, colour wash, etc. and combines for physically in bamboo material surface.
Carried out comparative analysis and Data Detection to above-described embodiment 1-3 and comparative example 1, result is as following table 1:
Can be found by table 1, energy-saving luminous material prepared by Commercial optical paint compared by bamboo chip strontium aluminate fluorescent material matrix material prepared by the present invention, possesses longer work-ing life, in preparation process, organic solvent-free adds, and present the texture wood color of bamboo wood self, but preparation technology parameter has certain influence to sunset glow duration, and the sunset glow duration of example 1,2 and 3 is all lower than comparison example 1, but reach 10.6 hours during the sunset glow of example 1, be enough to meet user demand.
The present invention passes through with mao bamboon bamboo chip as base material, by paths such as its conduit, screen casing and pits, and by physical chemistry method by strontium aluminate fluorescent material and mao bamboon bamboo chip compound, realize the good low-light source material of bamboo wood as light source carrier, can not cause potential safety hazard to environment and the mankind, and work-ing life is longer, energy-conserving and environment-protective.
Above-mentioned embodiment is only concrete case of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But every content not departing from technical solution of the present invention, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, all should fall into scope of patent protection of the present invention.
Claims (5)
1. a preparation method for bamboo chip/strontium aluminate fluorescent material matrix material, is characterized in that, comprise the following steps:
1, bamboo chip pre-treatment:
1.1, flood: mao bamboon bamboo chip is flooded in water to its water ratio and reach 35-50%;
1.2, microwave explosion: the mao bamboon bamboo chip of dip treating is carried out microwave explosion treatment, obtains pre-treatment bamboo chip;
2, strontium aluminate fluorescent material pre-treatment:
Surface coating process: adopt the process of inorganic oxide cladding process, obtain coated strontium aluminate fluorescent material product;
3, bamboo chip and strontium aluminate fluorescent material compound:
3.1, mix: get the pre-treatment bamboo chip that mass ratio is 10-30:1:60-140, coated strontium aluminate fluorescent material and ethanolic soln, by above-mentioned mass ratio, coated strontium aluminate fluorescent material is dispersed in ethanolic soln, in ultrasonic wave, ultrasonic 5-10 minute makes coated strontium aluminate fluorescent material be uniformly dispersed, add the pre-treatment bamboo chip of above-mentioned mass ratio again, obtain mixture;
3.2, react: gained mixture in step 3.1 is moved to initial action 30-90 minute in magnetic stirring apparatus, refills in stainless steel pressurized tank, after regulating pressure to 0.6MPa by air compressor, room temperature constant voltage reacts 85-100 minute again;
3.3, dry: to take out the bamboo chip dry 8-15 hour in radio-frequency drying case with the coated even compound of strontium aluminate fluorescent material in step 3.2, drying process is divided into two stages, first stage adopts high temperature method fast, and Heating temperature is 80 ± 2 DEG C, and the time is 4 hours; Subordinate phase adopts low temperature method at a slow speed, and Heating temperature is 60 ± 2 DEG C, and the time is 4 ~ 11 hours, obtains bamboo chip/strontium aluminate fluorescent material compound low-light source material.
2. the preparation method of a kind of bamboo chip as claimed in claim 1/strontium aluminate fluorescent material matrix material, is characterized in that: described step 1 1.2 in the output rating of microwave explosion treatment be 8-11kW, the treatment time is 120-210s.
3. the preparation method of a kind of bamboo chip as claimed in claim 1/strontium aluminate fluorescent material matrix material, it is characterized in that: described step 2 2.1 in the inorganic oxide cladding process that adopts be coated with silica modification method, the concrete steps of described coated with silica modification method are:
A, hydrolysis: get tetraethoxy, water, ethanol that mass ratio is 1:28-32:28-32, by above-mentioned mass ratio, second alcohol and water is mixed, obtain aqueous ethanolic solution, the tetraethoxy getting above-mentioned mass ratio is dissolved in aqueous ethanolic solution, then nitric acid adjust ph to 1 ~ 2 are dripped, then drip ammoniacal liquor adjust ph to neutral, obtain mixed liquor A;
B, coated: strontium aluminate fluorescent material, urea and water that mass ratio is 1-2:1:13 will to be added in mixed liquor A, and obtain mixed liquid B, stir 1 hour under mixed liquid B being placed in 95 ± 2 DEG C of isoperibols, be cooled to room temperature afterwards;
C, suction filtration are separated: mixed liquid B washed 10-15 time respectively with distilled water and ethanolic soln, obtain mixed solution C;
D, drying: by mixed solution C dry 10-15 hour at 80 ± 2 DEG C, finally obtain coated strontium aluminate fluorescent material product.
4. the preparation method of a kind of bamboo chip as claimed in claim 1/strontium aluminate fluorescent material matrix material, is characterized in that: described step 3 3.1 in pre-treatment bamboo chip, coated strontium aluminate fluorescent material, ethanolic soln mass ratio be 12-20:1:80-120.
5. the preparation method of a kind of bamboo chip/strontium aluminate fluorescent material matrix material stated as claim 4, is characterized in that: the water ratio of the 3.3 gained bamboo chips/strontium aluminate fluorescent material compound low-light source material of described step 3 is 10-15%.
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| CN108724384A (en) * | 2018-07-25 | 2018-11-02 | 东北林业大学 | A kind of preparation method of self-luminous timber that is while storing thermal energy and luminous energy |
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| CN104531145B (en) | 2016-08-17 |
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