CN101085911A - Dry powder thermal insulation material and preparation method thereof - Google Patents
Dry powder thermal insulation material and preparation method thereof Download PDFInfo
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- CN101085911A CN101085911A CN 200710042763 CN200710042763A CN101085911A CN 101085911 A CN101085911 A CN 101085911A CN 200710042763 CN200710042763 CN 200710042763 CN 200710042763 A CN200710042763 A CN 200710042763A CN 101085911 A CN101085911 A CN 101085911A
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Abstract
The invention relates to a method for preparing dry powder thermal insulating material by taking waste integrated electrical wiring board as main raw material, belonging to waste comprehensive utilization and chemical construction material preparation technique field. It is characterized in that the comprised components their proportion by weight are as follows: waste electrical wiring board powder 45- 55%, complex coagulation material 40- 52%, emulsion powder 1- 3%, waste polyphenylacetylene particle 1- 3%, thickening agent 0.2- 0.8%, anti- crack agent 0.05- 0.15%, water diversion reducing agent 0.005- 0.02%. The method comprises following steps: weighing said formulation, feeding raw materials into mixing machine, stirring, and getting dry thermal insulating material. The product is coated on exterior wall as thermal insulating material, which is characterized by low heat conductive coefficient, light weight, no crack and good thermal insulation effect.
Description
Technical field
The present invention relates to materials such as the electronic circuit board waste material of a kind of utilization through pulverizing, waste polystyrene particle, after treatment, prepare the method for dry powder thermal insulation material.Belong to electron wastes comprehensive utilization and chemical building material fabricating technology field.
Background technology
Wiring board is the basis of electronic industry, to electronic toy etc., wiring board is arranged all in nearly all electronic product from computer, televisor.40% of the whole world wiring board is all produced in China now.We have entered the superseded peak period of scrapping of household electrical appliances from 2003.The waste electronic circuit board quantity grows with each passing day, and has become new source of pollution of environment.The waste electronic wiring board is made up of galss fiber reinforced resin and multiple metal.More treatment process is that the waste electronic wiring board is pulverized both at home and abroad at present, behind the extraction precious metals, nonmetal residue or stacking or landfill, not only land occupation but also contaminate environment.What is more, and wiring board is taked to burn or strong acid dissolved original method, extracts metal, causes bigger pollution.Therefore, how the nonmetal residue behind the extraction metal is used, this is an environmental protection problem, is again a comprehensive utilization and an exploitative problem, makes the utilization of waste can create social benefit and economic benefit.
Summary of the invention
The objective of the invention is to propose a kind of is main raw material with the nonmetal residue of the waste electronic wiring board through pulverizing after extracting precious metals, is equipped with the method that other raw materials prepare dry powder thermal insulation material.
A kind of dry powder thermal insulation material of the present invention is characterized in that having following moiety and weight percent thereof:
Waste electronic wiring board powder 45～55%,
Composite gelled material 40～52%,
Latex powder 1～3%,
Waste polystyrene particle 1～3%,
Thickening material 0.2～0.8%,
Anticracking agent 0.05～0.15%,
Gas tracting subtractive agent 0.005～0.02%;
Wherein:
Described waste electronic wiring board powder is with electronic circuit board after crushed, and metal separation is wherein come out, and remaining is Resins, epoxy and glass fiber granules, and its fineness is 0.1～0.5mm; Described particle is carried out modification, be about to this impregnated with particles in organic glued material water solution, make particle surface apply the organic consolidating material of one deck, after the taking-up oven dry, as raw material for standby;
Described composite gelled material is made up of 42.5 ordinary Portland cements, calcium increasing agent, flyash, zeolite, and its weight percent is: ordinary Portland cement 40～60%, calcium increasing agent 25～45%, flyash 5～20%, zeolite 5～20%; Wherein calcium increasing agent is by CaO.Ca (OH)
2With a small amount of CaCO
3Form, fineness is 325 orders;
Described waste polystyrene particle is a particle of being pulverized the 1.5～3.0mm that forms by waste polystyrene foamed plastics; And this granules of polystyrene carried out modification, and be about to this impregnated with particles in organic glued material water solution, make the particle surface complete wetting, add an amount of cement again, fully stir, after treating that particle surface coats one deck grout, take out and carry out ageing, the oven dry back is stand-by;
Described emulsion powder is the acrylate redispersable latex powder, and fineness is 100 orders;
Described thickening material is an ether of cellulose;
Described anticracking agent is a polypropylene fibre, and diameter is 30～50 μ m, and length is 5～10mm;
Described gas tracting subtractive agent is a modified lignin mahogany sulfonate.
The preparation method of a kind of dry powder thermal insulation material of the present invention, it is characterized in that: weigh according to above-mentioned composition of raw materials, to give up respectively then electronic circuit board powder, composite gelled material, latex powder, granules of polystyrene, thickening material, anticracking agent, gas tracting subtractive agent is placed in the mixing machine, through fully stirring, it is mixed, finally promptly make dry powder thermal insulation material; After need adding a certain amount of moisture in use, stirring, ageing is 10 minutes again, can use.
The prepared dry powder thermal insulation material of the inventive method has following characteristics:
(1) dry powder thermal insulation material is a powdery solid, is convenient to transportation; During use, adding water can fully disperse, and can be coated on external wall effectively and make the heat-insulation and heat-preservation material.
(2) dry powder thermal insulation material that makes of the inventive method, its thermal conductivity is low, unit weight gently, do not ftracture, high insulating effect.
Embodiment
After now specific embodiments of the invention being described in.
Be example with preparation 100kg dry powder thermal insulation material in the actual example.
Embodiment 1
Take by weighing waste electronic wiring board powder 50kg, waste polystyrene particle 1.8kg, composite gelled material 45.785kg, redispersable latex powder 1.5kg, thickening material 0.8kg, anticracking agent 0.1kg, gas tracting subtractive agent 0.015kg respectively, be added in the mixing machine successively, through fully stirring, it is mixed, promptly make dry powder thermal insulation material.
Embodiment 2
Take by weighing waste electronic wiring board powder 55kg, waste polystyrene particle 1.5kg, composite gelled material 40.685kg, redispersable latex powder 2.0kg, thickening material 0.7kg, anticracking agent 0.1kg, gas tracting subtractive agent 0.015kg respectively, be added in the mixing machine successively, through fully stirring, it is mixed, promptly make dry powder thermal insulation material.
Embodiment 3
Take by weighing waste electronic wiring board powder 45kg, waste polystyrene particle 1.2kg, composite gelled material 51.29kg, redispersable latex powder 1.8kg, thickening material 0.6kg, anticracking agent 0.1kg, gas tracting subtractive agent 0.01kg respectively, be added in the mixing machine successively, through fully stirring, it is mixed, promptly make dry powder thermal insulation material.
The dry powder thermal insulation material that the various embodiments described above make adds a certain amount of moisture, and after stirring, ageing is 10 minutes again, can use.It can be covered with paint, lacquer, colour wash, etc. in skin and make the heat-insulation and heat-preservation material.After the sample sclerosis of the foregoing description, after testing, the technical feature after its sclerosis requires to meet the GB/T20473-2006 standard.The project of this standard and technical feature require as follows:
| Project | The technical feature requirement |
| Dry density (kg/m 3) | 301～400 |
| Ultimate compression strength (MPa) | ≥0.4 |
| Thermal conductivity (W/m ° of K) | ≤0.085 |
| Linear shrinkage ratio (%) | ≤0.30 |
| Pressure is cut cohesive strength (KPa) | ≥50 |
| The combustionproperty rank | Meet the A level requirement of GB8624 regulation |
Claims (2)
1. dry powder thermal insulation material is characterized in that having following moiety and weight percent thereof:
Waste electronic wiring board powder 45～55%, composite gelled material 40～52%,
Latex powder 1～3%, waste polystyrene particle 1～3%,
Thickening material 0.2～0.8%, anticracking agent 0.05～0.15%,
Gas tracting subtractive agent 0.005～0.02%;
Wherein:
Described waste electronic wiring board powder is with electronic circuit board after crushed, and metal separation is wherein come out, and remaining is Resins, epoxy and glass fiber granules, and its fineness is 0.1～0.5mm; Described particle is carried out modification, be about to this impregnated with particles in organic glued material water solution, make particle surface apply the organic consolidating material of one deck, after the taking-up oven dry, as raw material for standby;
Described composite gelled material is made up of 42.5 ordinary Portland cements, calcium increasing agent, flyash, zeolite, and its weight percent is: ordinary Portland cement 40～60%, calcium increasing agent 25～45%, flyash 5～20%, zeolite 5～20%; Wherein calcium increasing agent is by CaO.Ca (OH)
2With a small amount of CaCO
3Form, fineness is 325 orders;
Described waste polystyrene particle is a particle of being pulverized the 1.5～3.0mm that forms by waste polystyrene foamed plastics; And this granules of polystyrene carried out modification, be about to this impregnated with particles in organic glued material water solution, make the particle surface complete wetting, add an amount of cement again, fully stir, treat that particle surface coats one deck grout after, take out and carry out ageing, the oven dry back is stand-by;
Described emulsion powder is the acrylate redispersable latex powder, and fineness is 100 orders;
Described thickening material is an ether of cellulose;
Described anticracking agent is a polypropylene fibre, and diameter is 30～50 μ m, and length is 5～10mm;
Described gas tracting subtractive agent is a modified lignin mahogany sulfonate.
2. according to the preparation method of the dry powder thermal insulation material of claim 1, it is characterized in that: weigh according to above-mentioned composition of raw materials, to give up respectively then electronic circuit board powder, composite gelled material, latex powder, granules of polystyrene, thickening material, anticracking agent, gas tracting subtractive agent is placed in the mixing machine, through fully stirring, it is mixed, finally promptly make dry powder thermal insulation material; After need adding a certain amount of moisture in use, stirring, ageing is 10 minutes again, can use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100427632A CN100567443C (en) | 2007-06-26 | 2007-06-26 | Dry powder thermal insulation material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100427632A CN100567443C (en) | 2007-06-26 | 2007-06-26 | Dry powder thermal insulation material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101085911A true CN101085911A (en) | 2007-12-12 |
| CN100567443C CN100567443C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100427632A Expired - Fee Related CN100567443C (en) | 2007-06-26 | 2007-06-26 | Dry powder thermal insulation material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921091A (en) * | 2010-06-29 | 2010-12-22 | 上海大学 | Method for preparing thermal-insulation material for dry powder from waste polyurethane foamed plastics |
| CN102161856A (en) * | 2011-03-01 | 2011-08-24 | 陕西理工学院 | Preparation method of thermal insulation paint capable of replacing cement mortar |
| CN102407560A (en) * | 2011-07-29 | 2012-04-11 | 暨南大学 | Method for preparing composite light wallboard by using non-metal materials of waste electronic circuit boards |
| CN101585686B (en) * | 2009-04-30 | 2012-05-02 | 上海大学 | Method for preparing dry powder thermal insulation material by using nonmetal residues of waste electronic circuit boards |
| CN110183188A (en) * | 2019-06-28 | 2019-08-30 | 福州大学 | A kind of light thermal-insulation dregs standard brick and preparation method thereof |
| CN111635247A (en) * | 2020-05-07 | 2020-09-08 | 杨思国 | Preparation method of porous heat-insulating material with high closed porosity |
| CN113149565A (en) * | 2021-04-30 | 2021-07-23 | 安徽工业大学 | Fiber-reinforced EPS (expandable polystyrene) -ceramic sand composite thermal insulation mortar and production process thereof |
-
2007
- 2007-06-26 CN CNB2007100427632A patent/CN100567443C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585686B (en) * | 2009-04-30 | 2012-05-02 | 上海大学 | Method for preparing dry powder thermal insulation material by using nonmetal residues of waste electronic circuit boards |
| CN101921091A (en) * | 2010-06-29 | 2010-12-22 | 上海大学 | Method for preparing thermal-insulation material for dry powder from waste polyurethane foamed plastics |
| CN102161856A (en) * | 2011-03-01 | 2011-08-24 | 陕西理工学院 | Preparation method of thermal insulation paint capable of replacing cement mortar |
| CN102407560A (en) * | 2011-07-29 | 2012-04-11 | 暨南大学 | Method for preparing composite light wallboard by using non-metal materials of waste electronic circuit boards |
| CN110183188A (en) * | 2019-06-28 | 2019-08-30 | 福州大学 | A kind of light thermal-insulation dregs standard brick and preparation method thereof |
| CN111635247A (en) * | 2020-05-07 | 2020-09-08 | 杨思国 | Preparation method of porous heat-insulating material with high closed porosity |
| CN113149565A (en) * | 2021-04-30 | 2021-07-23 | 安徽工业大学 | Fiber-reinforced EPS (expandable polystyrene) -ceramic sand composite thermal insulation mortar and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100567443C (en) | 2009-12-09 |
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Granted publication date: 20091209 Termination date: 20130626 |