CN104877304A - Preparation method for bamboo liquefaction phenolic resin end-capped perlite-loaded phase change material - Google Patents
Preparation method for bamboo liquefaction phenolic resin end-capped perlite-loaded phase change material Download PDFInfo
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Abstract
The invention discloses a preparation method for a bamboo liquefaction phenolic resin end-capped perlite-loaded phase change material. The preparation method comprises the following steps: mixing phenol, polyethylene glycol-400, 37% hydrochloric acid and crushed bamboo processing remainders according to a proportion, liquefying the bamboo processing reminders, and then adding 40% NaOH and formaldehyde to obtain bamboo debris liquefaction phenolic resin; after the phase change material is molten, adding perlite having the particle size being larger than 550-1500 micrometers, and carrying out vacuumizing adsorption; adding the obtained bamboo debris liquefaction phenolic resin to the perlite loaded with the phase change material, and carrying out vacuumizing absorption for 1 hour; carrying out acid washing on the obtained mixture, soaking for 10min, then carrying out suction filtering and carrying out vacuumizing adsorption for 1h; carrying out vacuum drying on the obtained mixture to obtain a finished product. According to the preparation method disclosed by the invention, the problem of leakage of the perlite-loaded phase change material is solved by sufficiently utilizing the characteristic of the bamboo liquefaction phenolic resin, and the thermal stability of the phase change material is ensured.
Description
Technical field
The present invention relates to biomass energy-storage composite material field, be specifically related to a kind of preparation method of bamboo liquefied resol end-blocking perlite load phase change material.
Background technology
China's bamboo resource is very abundant, and bamboo grove area accounts for the world 1/4.Accumulation and the bamboo wood annual production Jun Zhan world 1/3, bamboo wood have growth fast, become a useful person early, one of the important fast-growing of China and renewable forest reserves are become, common bamboo processing utilization rate is lower than 40%, major part bamboo wood can produce bamboo particle in the course of processing, these bamboo particle parts are for processing bamboo fibreboard, and major part goes out of use burning, and recycling added value is lower.
Bamboo particle is utilized to make bamboo liquefied resol, be one of effective means of bamboo wood chemical conversion utilization, this resin not only has the characteristic of resol, also containing the macromole nanoparticles after bamboo liquefied, it is uniformly dispersed, and has certain expandability and tackiness.
Perlite is the silicate melt of multicomponent system, its inside is cellular structures, be characterized in that unit weight is light, adiabatic and attracting performance is good, there is stronger adsorptive power, abundant raw material source, cheap, therefore in phase change material makes, perlite generally can be adopted as carrier, but in making processes, often there is the situation that phase change material is revealed.
Summary of the invention
For solving the problem, the invention provides a kind of preparation method of bamboo liquefied resol end-blocking perlite load phase change material, by bamboo particle is chemically converted into fluent meterial, utilize the distinctive characteristic of bamboo liquefied resol, under certain temperature and acid number condition, bamboo liquefied resin filling perlite micropore can be made, decrease the leakage of phase change material in phase transition process.
For achieving the above object, the technical scheme that the present invention takes is:
A preparation method for bamboo liquefied resol end-blocking perlite load phase change material, comprises the steps:
S1, the bamboo surplus material of processing example 1: 1 in mass ratio that phenol, PEG-4000,37% hydrochloric acid and the particle diameter after pulverizing are less than 380 microns:: after 1: 1.5 mixing, to bamboo surplus material of processing liquefaction 30-60min under 120-140 DEG C of temperature condition, then, add the formaldehyde solution of the 40%NaOH aqueous solution of 2.34 times amount of phenol usage and 2.37 times amount of phenol usage, under 80-100 DEG C of condition, heating 45-75min, obtains bamboo particle liquefied phenol urea formaldehyde;
S2, get the melting of 20-70g phase change material after, add the perlite that 10-15g particle diameter is greater than 550-1500 μm, mix, vacuumizing and adsorbing;
S3, the resin getting 10-30g step S1 gained join in the perlite of load phase change material of step S2 gained, under 30-50 DEG C of condition, and vacuumizing and adsorbing 1 hour;
S4, use phosphoric acid carry out pickling to the mixture of step S3 gained, after soaking 10min, and suction filtration, vacuumizing and adsorbing 1 hour under 30-50 DEG C of condition;
S5, the mixture of step S4 gained is carried out vacuum-drying, dry 10-16 hour, obtains finished product.
Wherein, described phase change material is organic paraffin class, organic fatty alcohol.
Wherein, described organic paraffin class is the one in paraffin, Octadecane.
Wherein, described organic fatty alcohol is the one in hexadecanol, tetradecyl alcohol.
This is specifically implemented bamboo crushed aggregates through liquefaction and resinifying, be made into bamboo liquefied resol, this resin has and is uniformly dispersed, and not only has the characteristic of resol, also containing the macromole nanoparticles after bamboo liquefied, perlite surface can be attached to preferably, under certain temperature and acid number condition, through negative pressure of vacuum process, perlite micropore can be filled, good coated perlite, prevents the leakage of the phase change material of perlite load.
The present invention has following beneficial effect:
Make full use of the characteristic of bamboo liquefied resol, solve the problem that perlite load phase change material is revealed, ensure that the thermostability of phase change material.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In following examples, phase change material is organic paraffin class, organic fatty alcohol; Organic paraffin class is the one in paraffin, Octadecane; Organic fatty alcohol is the one in hexadecanol, tetradecyl alcohol
Embodiment 1.
S1, the bamboo surplus material of processing example 1: 1 in mass ratio that phenol, PEG-4000,37% hydrochloric acid and the particle diameter after pulverizing are less than 380 microns:: after 1: 1.5 mixing, to bamboo surplus material of processing liquefaction 30min under 120 DEG C of temperature condition, then, add the formaldehyde solution of the 40%NaOH aqueous solution of 2.34 times amount of phenol usage and 2.37 times amount of phenol usage, under 80 DEG C of conditions, heating 75min, obtains bamboo particle liquefied phenol urea formaldehyde;
S2, get the melting of 20g phase change material after, add the perlite that 10g particle diameter is greater than 550 μm, mix, vacuumizing and adsorbing;
S3, the resin getting 10g step S1 gained join in the perlite of load phase change material of step S2 gained, under 30 DEG C of conditions, and vacuumizing and adsorbing 1 hour;
S4, use phosphoric acid carry out pickling to the mixture of step S3 gained, after soaking 10min, and suction filtration, vacuumizing and adsorbing 1 hour under 30 DEG C of conditions;
S5, the mixture of step S4 gained is carried out vacuum-drying, dry 10 hours, obtain finished product.
Embodiment 2
S1, the bamboo surplus material of processing example 1: 1 in mass ratio that phenol, PEG-4000,37% hydrochloric acid and the particle diameter after pulverizing are less than 380 microns:: after 1: 1.5 mixing, to bamboo surplus material of processing liquefaction 30-60min under 140 DEG C of temperature condition, then, add the formaldehyde solution of the 40%NaOH aqueous solution of 2.34 times amount of phenol usage and 2.37 times amount of phenol usage, under 100 DEG C of conditions, heating 45min, obtains bamboo particle liquefied phenol urea formaldehyde;
S2, get the melting of 70g phase change material after, add the perlite that 15g particle diameter is greater than 1500 μm, mix, vacuumizing and adsorbing;
S3, the resin getting 10-30g step S1 gained join in the perlite of load phase change material of step S2 gained, under 50 DEG C of conditions, and vacuumizing and adsorbing 1 hour;
S4, use phosphoric acid carry out pickling to the mixture of step S3 gained, after soaking 10min, and suction filtration, vacuumizing and adsorbing 1 hour under 50 DEG C of conditions;
S5, the mixture of step S4 gained is carried out vacuum-drying, dry 16 hours, obtain finished product.
Embodiment 3
S1, the bamboo surplus material of processing example 1: 1 in mass ratio that phenol, PEG-4000,37% hydrochloric acid and the particle diameter after pulverizing are less than 380 microns:: after 1: 1.5 mixing, to bamboo surplus material of processing liquefaction 45min under 130 DEG C of temperature condition, then, add the formaldehyde solution of the 40%NaOH aqueous solution of 2.34 times amount of phenol usage and 2.37 times amount of phenol usage, under 90 DEG C of conditions, heating 60min, obtains bamboo particle liquefied phenol urea formaldehyde;
S2, get the melting of 45g phase change material after, add the perlite that 12.5g particle diameter is greater than 1025 μm, mix, vacuumizing and adsorbing;
S3, the resin getting 20g step S1 gained join in the perlite of load phase change material of step S2 gained, under 40 DEG C of conditions, and vacuumizing and adsorbing 1 hour;
S4, use phosphoric acid carry out pickling to the mixture of step S3 gained, after soaking 10min, and suction filtration, vacuumizing and adsorbing 1 hour under 40 DEG C of conditions;
S5, the mixture of step S4 gained is carried out vacuum-drying, dry 13 hours, obtain finished product
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a preparation method for bamboo liquefied resol end-blocking perlite load phase change material, is characterized in that, comprise the steps:
S1, the bamboo surplus material of processing example 1: 1 in mass ratio that phenol, PEG-4000,37% hydrochloric acid and the particle diameter after pulverizing are less than 380 microns:: after 1: 1.5 mixing, to bamboo surplus material of processing liquefaction 30-60min under 120-140 DEG C of temperature condition, then, add the formaldehyde solution of the 40%NaOH aqueous solution of 2.34 times amount of phenol usage and 2.37 times amount of phenol usage, under 80-100 DEG C of condition, heating 45-75min, obtains bamboo particle liquefied phenol urea formaldehyde;
S2, get the melting of 20-70g phase change material after, add the perlite that 10-15g particle diameter is greater than 550-1500 μm, mix, vacuumizing and adsorbing;
S3, the resin getting 10-30g step S1 gained join in the perlite of load phase change material of step S2 gained, under 30-50 DEG C of condition, and vacuumizing and adsorbing 1 hour;
S4, use phosphoric acid carry out pickling to the mixture of step S3 gained, after soaking 10min, and suction filtration, vacuumizing and adsorbing 1 hour under 30-50 DEG C of condition;
S5, the mixture of step S4 gained is carried out vacuum-drying, dry 10-16 hour, obtains finished product.
2. the preparation method of a kind of bamboo liquefied resol end-blocking perlite load phase change material according to claim 1, it is characterized in that, described phase change material is organic paraffin class, organic fatty alcohol.
3. the preparation method of a kind of bamboo liquefied resol end-blocking perlite load phase change material according to claim 1, it is characterized in that, described organic paraffin class is the one in paraffin, Octadecane.
4. the preparation method of a kind of bamboo liquefied resol end-blocking perlite load phase change material according to claim 1, it is characterized in that, described organic fatty alcohol is the one in hexadecanol, tetradecyl alcohol.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906257A (en) * | 2016-04-03 | 2016-08-31 | 黄河水利职业技术学院 | Building material |
| CN108130046A (en) * | 2017-11-29 | 2018-06-08 | 贵州省材料产业技术研究院 | Paraffin/Heat Conduction Material/polymer hollow fiber membrane composite phase-change material and preparation method thereof can be woven |
| CN113084393A (en) * | 2021-04-21 | 2021-07-09 | 兰州理工大学 | Antioxidant soldering flux for welding metal materials |
| CN114950503A (en) * | 2021-12-21 | 2022-08-30 | 常州市金坛区维格生物科技有限公司 | Preparation method and application of regenerated acid catalyst |
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| CN101096298A (en) * | 2006-06-28 | 2008-01-02 | 宁波荣山新型材料有限公司 | Organic phase-change composite expanding perlite and preparation method thereof |
| CN101139181A (en) * | 2007-07-25 | 2008-03-12 | 宁波荣山新型材料有限公司 | Process for preparing organic phase-change material composite expanded perlite by emulsification method |
| CN101348708A (en) * | 2008-09-17 | 2009-01-21 | 中国建筑材料科学研究总院 | Preparation of organic inorganic composite phase-change material |
| CN104387720A (en) * | 2014-10-16 | 2015-03-04 | 浙江省林业科学研究院 | Perlite added bamboo wood foamed composite material and preparation method thereof |
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2015
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Patent Citations (4)
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| CN101096298A (en) * | 2006-06-28 | 2008-01-02 | 宁波荣山新型材料有限公司 | Organic phase-change composite expanding perlite and preparation method thereof |
| CN101139181A (en) * | 2007-07-25 | 2008-03-12 | 宁波荣山新型材料有限公司 | Process for preparing organic phase-change material composite expanded perlite by emulsification method |
| CN101348708A (en) * | 2008-09-17 | 2009-01-21 | 中国建筑材料科学研究总院 | Preparation of organic inorganic composite phase-change material |
| CN104387720A (en) * | 2014-10-16 | 2015-03-04 | 浙江省林业科学研究院 | Perlite added bamboo wood foamed composite material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906257A (en) * | 2016-04-03 | 2016-08-31 | 黄河水利职业技术学院 | Building material |
| CN108130046A (en) * | 2017-11-29 | 2018-06-08 | 贵州省材料产业技术研究院 | Paraffin/Heat Conduction Material/polymer hollow fiber membrane composite phase-change material and preparation method thereof can be woven |
| CN113084393A (en) * | 2021-04-21 | 2021-07-09 | 兰州理工大学 | Antioxidant soldering flux for welding metal materials |
| CN113084393B (en) * | 2021-04-21 | 2022-06-17 | 兰州理工大学 | Antioxidant soldering flux for welding metal materials |
| CN114950503A (en) * | 2021-12-21 | 2022-08-30 | 常州市金坛区维格生物科技有限公司 | Preparation method and application of regenerated acid catalyst |
| CN114950503B (en) * | 2021-12-21 | 2023-08-18 | 常州市金坛区维格生物科技有限公司 | Preparation method and application of regenerated acid catalyst |
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