CN100475862C - Method for preparing foaming polymer base inorganic nano-composite material - Google Patents
Method for preparing foaming polymer base inorganic nano-composite material Download PDFInfo
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- CN100475862C CN100475862C CNB2006100323696A CN200610032369A CN100475862C CN 100475862 C CN100475862 C CN 100475862C CN B2006100323696 A CNB2006100323696 A CN B2006100323696A CN 200610032369 A CN200610032369 A CN 200610032369A CN 100475862 C CN100475862 C CN 100475862C
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- inorganic nano
- composite material
- polymer base
- base inorganic
- foaming polymer
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Abstract
This invention provides a foamable polymer based inorganic nanometer composite and its preparation. Inorganic nanoparticles and azo initiators are added in polymer matrix directly, conducting dispersion polymerization by supersonic wave. This foamable polymer based inorganic nanometer composites has many functions and can be used as neotype building materials, catalyst support, sound absorbing material and so on.
Description
Technical field
The present invention relates to a kind of foaming polymer base inorganic nano-composite material and preparation method.
Background technology
Polymer base inorganic nano-composite material can combine rigidity, dimensional stability and the thermostability of inorganics with toughness, workability and the erosion resistance of polymkeric substance, have the mechanics, the thermal property that are better than the same composition conventional polymer.In addition, its processing is based on the technical renovation on the traditional technology basis, does not need new high facility investment, and technology is simple, and is easy to operate, realizes industrialization easily.Current polymer base inorganic nano-composite material has nylon 6/SiO
2Matrix material, PI/SiO
2Matrix material, PMMA/SiO
2Matrix material etc.Foamable polymer is a kind of polymers of excellent properties/gas recombination material, and it has light weight, heat insulation, sound insulation, specific tenacity advantages of higher, in packing business, industrial or agricultural, transportation, war industry, space industry and daily necessities field extensive application.Main foamable polymer has foaming PP, foam PS, foaming PE, foaming PUR, foaming PMMA etc.Because foamable polymer generally needs to add whipping agent in polymerization process, operation is more, and in forming process the abscess coalescence takes place easily, makes the cell size inequality.Can improve cell morphology if in foamable polymer, add inorganic nano-particle, improve the stability of abscess, the mechanical property of foamable polymer is improved, and may give foamable polymer new function.
Summary of the invention
The purpose of this invention is to provide a kind of preparation method who in foamable polymer, adds the foaming polymer base inorganic nano-composite material of inorganic nano-particle
The objective of the invention is to realize in the following way: a kind of preparation method of foaming polymer base inorganic nano-composite material:
With azo-initiator and weight percent 1～20% TiO
2, SiO
2, Al
2O
3, Fe
3O
4, Co
3O
4, CaCO
3It is in 80～99% the methyl methacrylate that nanoparticle adds weight percent, use earlier magnetic stirrer, use ultrasonic dispersing again, heating in water bath to 40～70 ℃ polymerization simultaneously, polymerization is 2～6 hours under this temperature, obtains heavy-gravity liquid, then this thick liquid is changed in the template, be elevated to 60～120 ℃ of polymerizations, obtain foaming polymer base inorganic nano-composite material.
At first polymer monomer is carried out pre-treatment, to polymer monomer, fully shake and treat NaOH separating solution layer after the complete layering, use distilled water wash again, add anhydrous sodium sulfate drying after separating distilled water with the NaOH solution washing.
Azo-initiator comprises Diisopropyl azodicarboxylate and 2,2'-Azobis(2,4-dimethylvaleronitrile).
The present invention has following beneficial effect: 1, technical process is simple, and the reaction times is short, and cost is low; 2, inorganic nano-particle need not to carry out surface treatment, and nanoparticle is uniformly dispersed in macromolecule matrix, and both interfaces are in conjunction with firm; 3, inorganic nano-particle need not to carry out surface treatment, and nanoparticle is uniformly dispersed in macromolecule matrix, and both interfaces are in conjunction with firm; 4, control the porosity that the consumption of initiator can be regulated matrix material within the specific limits, very little to the distribution influence of the polymerization degree, nanoparticle; The color of 5 matrix materials can be regulated by adding different inorganic nano-particles, can be used as finishing material; 6, matrix material has sound absorbing capabilities, can be used as sound-absorbing material; 7, matrix material has excellent mechanical property, can be used as the engineering construction material; 8, matrix material can be used as the excellent carrier of catalyzer.
Description of drawings
Fig. 1 is foamable polymer monomer/SiO of the present invention
2The infrared spectrum of inorganic nano composite material;
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1
1, the pre-treatment of methyl methacrylate monomer.Methyl methacrylate 300ml with the NaOH solution washing of 100ml 5%, fully shakes and treats NaOH separating solution layer after the complete layering, and the stopper para benzoquinone in the methyl methacrylate is removed in repetitive operation three times.Use distilled water wash again three times, each consumption 100ml.Add the 20g anhydrous sodium sulfate drying after separating distilled water, standby.
2, accurately take by weighing the nanometer SiO of Diisopropyl azodicarboxylate 0.25g and 2.25
2, add in the 22.5g methyl methacrylate, with magnetic stirrer 5 minutes, use ultrasonic dispersing more earlier, heating in water bath to 40～50 ℃ simultaneously, polyase 13 hour under this temperature obtains heavy-gravity liquid.Then this thick liquid is changed in the template, elevated temperature to 60～65 ℃ polymerization obtains the PMMA/SiO that foams
2Inorganic nano composite material.
3, to foaming PMMA/SiO
2The porosity of inorganic nano composite material, mechanical property and sound absorbing capabilities are measured, and Fig. 1 is foamable polymer monomer/SiO
2The infrared spectrum of inorganic nano composite material.
Embodiment 2-3: step and method, technology controlling and process, respective detection experiment, performance test change the consumption of initiator and the consumption and the kind of nanoparticle and have synthesized multiple matrix material (seeing table 1 for details) with embodiment 1.
Claims (3)
1, a kind of preparation method of foaming polymer base inorganic nano-composite material is characterized in that: be 1～20% TiO with azo-initiator and weight percent
2, SiO
2, Al
2O
3, Fe
3O
4, Co
3O
4Or CaCO
3It is in 80～99% the methyl methacrylate that nanoparticle adds weight percent, use earlier magnetic stirrer, use ultrasonic dispersing again, heating in water bath to 40～70 ℃ polymerization simultaneously, polymerization is 2～6 hours under this temperature, obtains heavy-gravity liquid, then this thick liquid is changed in the template, be elevated to 60～120 ℃ of polymerizations, obtain foaming polymer base inorganic nano-composite material.
2, the preparation method of foaming polymer base inorganic nano-composite material according to claim 1: it is characterized in that: at first methyl methacrylate is carried out pre-treatment, with NaOH solution washing methyl methacrylate, fully shake and treat NaOH separating solution layer after the complete layering, use distilled water wash again, add anhydrous sodium sulfate drying behind the separation distilled water.
3, the preparation method of foaming polymer base inorganic nano-composite material according to claim 1: it is characterized in that: azo-initiator is Diisopropyl azodicarboxylate or 2,2'-Azobis(2,4-dimethylvaleronitrile).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100323696A CN100475862C (en) | 2006-09-28 | 2006-09-28 | Method for preparing foaming polymer base inorganic nano-composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100323696A CN100475862C (en) | 2006-09-28 | 2006-09-28 | Method for preparing foaming polymer base inorganic nano-composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948387A CN1948387A (en) | 2007-04-18 |
| CN100475862C true CN100475862C (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100323696A Expired - Fee Related CN100475862C (en) | 2006-09-28 | 2006-09-28 | Method for preparing foaming polymer base inorganic nano-composite material |
Country Status (1)
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|---|---|
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188380B (en) * | 2016-08-03 | 2018-04-17 | 台州艾斐建材有限公司 | A kind of tap of composite material clad surface |
| CN114409835B (en) * | 2022-01-11 | 2023-07-18 | 滁州杰事杰新材料有限公司 | Polymethyl methacrylate composite material and preparation method thereof |
-
2006
- 2006-09-28 CN CNB2006100323696A patent/CN100475862C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 在位分散聚合聚甲基丙烯酸甲酯/二氧化硅纳米复合材料研究. 欧玉春等.高分子学报，第2期. 1997 |
| 在位分散聚合聚甲基丙烯酸甲酯/二氧化硅纳米复合材料研究. 欧玉春等.高分子学报，第2期. 1997 * |
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|---|---|
| CN1948387A (en) | 2007-04-18 |
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Granted publication date: 20090408 Termination date: 20160928 |