CN101391878A - Graphite base heatproof and heat insulating material and production technique thereof - Google Patents

Graphite base heatproof and heat insulating material and production technique thereof Download PDF

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Publication number
CN101391878A
CN101391878A CNA2007101326662A CN200710132666A CN101391878A CN 101391878 A CN101391878 A CN 101391878A CN A2007101326662 A CNA2007101326662 A CN A2007101326662A CN 200710132666 A CN200710132666 A CN 200710132666A CN 101391878 A CN101391878 A CN 101391878A
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CN
China
Prior art keywords
heat
heatproof
graphite
insulation
mix
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Pending
Application number
CNA2007101326662A
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Chinese (zh)
Inventor
王学刚
潘月秋
杨金凤
杨圣闯
张鑫
耿世达
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ROCKWELL (QINGDAO) ADVANCED MATERIALS CO Ltd
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ROCKWELL (QINGDAO) ADVANCED MATERIALS CO Ltd
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Priority to CNA2007101326662A priority Critical patent/CN101391878A/en
Publication of CN101391878A publication Critical patent/CN101391878A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/022Carbon
    • C04B14/024Graphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00439Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0087Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density

Abstract

The invention discloses a graphite-based temperature-resistant thermal insulation material and a production technology thereof. The material comprises the following components: 15-30wt percent of graphite powder, 18-28wt percent of sepiolite, 8-15wt percent of inorganic foaming agent, 5-20wt percent of inorganic adhesive, 6.4-32wt percent of high-quality cement, and other auxiliary agents as the rest; and the insulation material is obtained by stirring and mixing, molding, and curing. The invention also provides the production technology of the graphite-based temperature-resistant thermal insulation material, one is that after stirring, mixing and molding, the raw materials are naturally dried or dried and cured by using a drying oven; and the other is that after stirring, mixing and molding, the raw materials are sintered and cured. The invention has easily obtained raw materials with low price, simple production technology, convenient operation, good high-temperature resistant and thermal insulating performance of products, light weight, large mechanical strength and low thermal conductivity coefficient, and can be widely used in the fields of construction, petrochemical industry, metallurgy, and the like.

Description

A kind of graphite base heatproof heat-insulation and heat-preservation material and production technique thereof
Technical field
The present invention relates to heatproof heat-insulation and heat-preservation material of a kind of graphitiferous powder and preparation method thereof, especially a kind of lagging material and production technique thereof that is used for the construction wall insulation.
Background technology
The material category that is applied to building heat preservation at present is various, and each is different for proportioning raw materials, and its performance gap is bigger.Rock wool is the material that is applied to building heat preservation at first, easily suction in use, not anti-naked light, natural weathering be serious,, work-ing life big to the pungency of skin weak point, difficult secondary decoration etc., the material replacement is appearred later on gradually; The good heat-insulation and heat-preservation material of a class light weight, heat-insulating property that glass wool and goods thereof occur after rock wool mainly contains product forms such as plate, felt, shell, decorative ceiling, and its product softening temperature is about 500 ℃, is incubated 300 ℃; Aluminum silicate fiber also is refractory fibre, and mainly as the kiln lagging material, kind is more, and the domestic market mainly contains common aluminum silicate fiber, high-purity aluminum silicate fiber, high aluminum fiber and contains aluminum fiber etc., in being, low grade products; High-grade products such as polycrystalline mullite fibre, polycrystalline alumina fiber and polycrystal zirconia fiber, its price is higher relatively; Porous plastics is that make on the basis with synthetic resins, inside has the plastics of countless apertures, it is low that it has a thermal conductivity, advantages such as easy machine-shaping, also bring into use architectural, main products is polystyrene foamed plastics and urethane foam, but use to exist at building field be difficult to be combined into one with body of wall, problems such as perk, heatproof degree are low, difficult secondary decoration, along with Building Fire Protection to the material requirements strictness, the large-scale application of such building thermal insulation material has been subjected to certain limitation.
Summary of the invention
The objective of the invention is to overcome the shortcoming that existing wall heat insulation material exists, a kind of light specific gravity, not only high temperature resistant but also heat insulation, ultimate compression strength is big, cost is low graphite base heatproof lagging material and production technique thereof are provided.
For achieving the above object, graphite base heatproof heat-insulation and heat-preservation material of the present invention has adopted following technical proposals.
Graphite base heatproof heat-insulation and heat-preservation material of the present invention comprises following starting material, and formulated with the following ranges weight percent:
Graphite Powder 99 15-30wt%
Sepiolite 18-28wt%
Inorganic foaming agent 8-15wt%
Inorganic adhesive 6-20wt%
High grade cement 6.4-32wt%
The auxiliary agent surplus.
In the above-mentioned starting material, Graphite Powder 99 has the particle diameter that is lower than 160 μ m; Sepiolite is processed into powdery through ore dressing pretreatment; Inorganic foaming agent is that sodium bicarbonate or bicarbonate of ammonia or sodium bicarbonate and bicarbonate of ammonia are compound; High grade cement is selected high quality silicon acid salt cement or fine aluminum acid salt cement for use; Auxiliary agent is methylcellulose gum or carboxymethyl cellulose or cationic cellulose or Natvosol or Vltra tears or hydroxypropylcellulose or hydroxyethylmethyl-cellulose.The tap density of the graphite base heatproof heat-insulation and heat-preservation material that above-mentioned starting material are made is 0.52-0.86g/cm 3, powdered graphite disperses wherein.
One of graphite base heatproof lagging material production technique of the present invention, promptly adopt natural air drying to solidify or with the production technique of loft drier dry solidification, this production technique may further comprise the steps and condition:
(1) batching: Graphite Powder 99 15-30wt%, sepiolite 18-28wt%, high quality silicon acid salt cement 6.4-32wt%, inorganic foaming agent 8-15wt%, inorganic adhesive 5-20wt%, auxiliary agent surplus; In the above-mentioned raw materials, Graphite Powder 99 has the particle diameter that is lower than 160 μ m, sepiolite, and to be processed into powdery, inorganic foaming agent through ore dressing pretreatment be sodium bicarbonate or bicarbonate of ammonia or sodium bicarbonate and bicarbonate of ammonia is compound, high quality silicon acid salt cement or aluminate cement; Auxiliary agent is methylcellulose gum or carboxymethyl cellulose or cationic cellulose or Natvosol or Vltra tears or hydroxypropylcellulose or hydroxyethylmethyl-cellulose.
(2) mix: according to step (1) proportioning, add Graphite Powder 99, sepiolite, high quality silicon acid salt cement, inorganic foaming agent, inorganic adhesive and auxiliary agent, mix in the adding mixing machine, add water 30-42wt% (in the weight of mixture), mix discharging in 3-5 minute;
(3) moulding: with mould the slurry that mixes is made the base material or directly the slurry that mixes is applied directly to the foundation wall layer, thickness is at 15-30mm;
(4) drying: become the parison material at natural air drying or place loft drier dry, the good heatproof thermofin that is applied directly to the foundation wall formable layer is coated natural air drying after the sand-cement slurry;
(5) maintenance: the curing time of natural air drying is that 2-4 days or electricity consumption hot-blast formula loft drier got product 30 ℃ of dryings in 12 hours under the room temperature.
The present invention also provides two of graphite base heatproof lagging material production technique, promptly adopts the production technique of sintering curing, and this production technique may further comprise the steps and condition:
(1) batching: Graphite Powder 99 15-30wt%, sepiolite 18-28wt%, fine aluminum acid salt cement 6.4-32wt%, inorganic foaming agent 8-15wt%, inorganic adhesive 5-20wt%, auxiliary agent surplus;
(2) mix: Graphite Powder 99, sepiolite, high quality silicon acid salt cement, inorganic foaming agent, inorganic adhesive and auxiliary agent according to step (1) proportioning are added in the forced mixer, mix, again in mixture weight, add water 30-42wt%, mix 3-5min, and then make up water 4-6wt%, mixing 3-5min, discharging is stand-by when treating to mix fully;
(3) moulding: specification as requested, make the base material of different shape;
(4) drying: the base material after the moulding carries out seasoning on drying plate, and residual moisture is put into the blowing-type baking oven and carried out drying during less than 5wt%, treats to place when moisture is less than 3wt% groom's stove;
(5) sintering: sintering temperature took time 3 hours altogether for being no more than 300 ℃;
(6) cooling: soaking time control naturally cooled to normal temperature after 3 hours.
The Graphite Powder 99 preferable particle size of this heatproof lagging material is below 160 μ m; Content is 15-30wt%, 18-24wt% the best (according to raw material total amount meter), and lower aq can not fully reduce thermal conductivity, and the content height will reduce the intensity of material; Moisture controlled was 30-42wt% when material added the water mixing; It is compound that inorganic foaming agent can be chosen one or both of sodium bicarbonate, bicarbonate of ammonia; Inorganic adhesive can be chosen a kind of in magnesium chloride, water glass, the alum liquor.
The tap density of this heatproof lagging material is 0.52-0.86g/cm 3, and powdered graphite is scattered in wherein uniformly.
The beneficial effect of graphite base heatproof lagging material of the present invention is: overcome traditional lagging material difficult compound in Application in Building, problems such as difficult secondary decoration; And the heatproof good heat-insulation effect of this material, cold crushing strength height, tap density are little, and technology is simple, easy to operate.The thermal conductivity of this material is low, the cold crushing strength height, volume density is little, still has good mechanical intensity being higher than under 1200 ℃ of temperature, it both can be applied directly to the occasion of anti-naked light or be coated on wall insulating layer, also can sintering make vary in size, different goods.Heatproof heat-insulation and heat-preservation material of the present invention can be widely used in the construction of seamless place, anti-naked light place, has improved anti-naked light temperature, has satisfied the requirement of fire-retardant material.Be with a wide range of applications in industries such as building, petrochemical complex, metallurgy.
Description of drawings
Fig. 1 is the structural representation that the present invention is applied to the heat insulation combined wall of heatproof.
Among Fig. 1, the 1st, foundation wall layer, the 2nd, graphite base heatproof thermofin, the 3rd, sand-cement slurry protective layer, the 4th, architectural surface.
Embodiment
The present invention is described in more detail below in conjunction with embodiment:
Embodiment one: graphite base heatproof heat-insulation and heat-preservation material sintering prepares example.
(1) batching: Graphite Powder 99 22wt%, sepiolite 20wt%, sodium bicarbonate 10wt%, magnesium chloride 14wt%, fine aluminum acid salt cement 30wt%, auxiliary agent methylcellulose gum 4%;
(2) mix: with stirring in the above-mentioned material adding forced mixer,, add water 30wt%, mixed 3 minutes in the gross weight of above-mentioned material, and then make up water 4wt%, to mix 5 minutes, discharging is stand-by when treating to mix fully;
(3) moulding: specification as requested, the adobe of making different shape;
(4) drying: formed green brick is carried out seasoning on drying plate, when residual moisture is lower than 5wt%, puts into the blowing-type baking oven and carries out drying, treats to pour into when moisture is less than 3wt% in groom's stove;
(5) burn till: the control Heating temperature is 280 ℃;
(6) cooling: soaking time control naturally cooled to normal temperature after 3 hours.
Embodiment two: the example that graphite base heatproof heat-insulation and heat-preservation material is applied to the heat insulation combined wall of heatproof.
In Fig. 1, provided graphite base heatproof heat-insulation and heat-preservation material has been applied to wall body structure behind the heat insulation combined wall of heatproof.Be followed successively by foundation wall layer 1 from inside to outside, novel graphite Ji Naiwen lagging material 2, sand-cement slurry protective layer 3, architectural surface 4.
Concrete steps are as follows:
(1) batching: Graphite Powder 99 28wt%, sepiolite 24wt%, magnesium chloride 15wt%, high quality silicon acid salt cement 28wt%, auxiliary agent Natvosol 5%;
(2) mix: mixing in the raw material adding mixing machine, add water 35wt% (in the weight of mixture), mixed 3 minutes, and then make up water 5% mixes the back discharging;
(3) coating: the slurry that mixes is applied directly to the foundation wall layer, and thickness is at 15~30mm;
(4) drying: the heatproof thermofin of forming is coated after the sand-cement slurry natural air drying under the room temperature.
In the embodiment shown in fig. 1, graphite base heatproof lagging material 2 is applied directly to foundation wall layer 1, and architectural surface 4 is architectural surfaces of flexible waterproof putty material or other coating.
Salient features and existing heat-insulation and heat-preservation material salient features that above-mentioned two embodiment obtain heatproof heat-insulation and heat-preservation material (directly overlay material, be fired into the heatproof lagging material) are compared as follows shown in the table:
By the table in as can be seen, material of the present invention has been compared following advantage with existing heat-insulation and heat-preservation material: volume density is little, mechanics of materials intensity is big, thermal conductivity is low, anti-naked light temperature height, and its over-all properties is better.
Heatproof heat-insulation and heat-preservation material of the present invention can be widely used in the construction of seamless place, anti-naked light place, has improved anti-naked light temperature, has satisfied the requirement of fire-retardant material.Be with a wide range of applications in industries such as building, petrochemical complex, metallurgy.

Claims (9)

1. graphite base heatproof heat-insulation and heat-preservation material, it is characterized in that, adopting Graphite Powder 99 15-30wt%, sepiolite 18-28wt%, high grade cement 6.4-32wt%, inorganic foaming agent 8-15wt%, inorganic adhesive 5-20wt% and other auxiliary agents (surplus) is raw material, through mix, moulding, curing form; This material tap density is 0.52-0.86g/cm 3, and powdered graphite disperses wherein.
2. graphite base heatproof heat-insulation and heat-preservation material according to claim 1 is characterized in that described Graphite Powder 99 has the particle diameter that is lower than 160 μ m.
3. graphite base heatproof heat-insulation and heat-preservation material according to claim 1 is characterized in that described sepiolite is processed into powdery through ore dressing pretreatment.
4. graphite base heatproof heat-insulation and heat-preservation material according to claim 1 is characterized in that, described inorganic foaming agent is that sodium bicarbonate or bicarbonate of ammonia or sodium bicarbonate and bicarbonate of ammonia are compound.
5. graphite base heatproof heat-insulation and heat-preservation material according to claim 1 is characterized in that, described inorganic adhesive is magnesium chloride or water glass or alum liquor.
6. graphite base heatproof heat-insulation and heat-preservation material according to claim 1 is characterized in that, described high grade cement is high quality silicon acid salt cement or fine aluminum acid salt cement.
7. graphite base heatproof heat-insulation and heat-preservation material according to claim 1, it is characterized in that described auxiliary agent is wherein a kind of of methylcellulose gum, carboxymethyl cellulose, cationic cellulose, Natvosol, Vltra tears, hydroxypropylcellulose and hydroxyethylmethyl-cellulose.
8. graphite base heatproof heat-insulation and heat-preservation material produce technology is characterized in that this production technique may further comprise the steps and condition:
(1) batching: Graphite Powder 99 15-30wt%, sepiolite 18-28wt%, fine aluminum acid salt cement 6.4-32wt%, whipping agent 8-15wt%, inorganic adhesive 5-20wt%, auxiliary agent surplus;
(2) mix: Graphite Powder 99, sepiolite, high quality silicon acid salt cement, inorganic foaming agent, inorganic adhesive and auxiliary agent according to step (1) proportioning are joined in the mixing machine, mix, again in mixture weight, add water 30-42wt%, mixed 3-5 minute, restock water 4-6wt% mixes the back discharging;
(3) moulding: with mould the slurry that mixes is made the base material or directly the slurry that mixes is applied directly to the foundation wall layer, thickness is at 15-30mm;
(4) drying: become the parison material at natural air drying or place loft drier dry, the good heatproof thermofin that is applied directly to the foundation wall formable layer is coated natural air drying after the sand-cement slurry;
(5) maintenance: the curing time of natural air drying is 2-4 days under the room temperature, gets product; Perhaps electricity consumption hot-blast formula loft drier gets product 30 ℃ of dryings 12 hours;
9. graphite base heatproof heat-insulation and heat-preservation material produce technology is characterized in that this production technique may further comprise the steps and condition:
(1) batching: Graphite Powder 99 15-30wt%, sepiolite 18-28wt%, high quality silicon acid salt cement 6.4-32wt%, inorganic foaming agent 8-15wt%, inorganic adhesive 5-20wt%, auxiliary agent surplus;
(2) mix: Graphite Powder 99, sepiolite, high quality silicon acid salt cement, inorganic foaming agent, inorganic adhesive and auxiliary agent according to step (1) proportioning are added in the forced mixer, mix, again in mixture weight, add water 30-42wt%, mix 3-5min, and then make up water 4-6wt%, mixing 3-5min, discharging is stand-by when treating to mix fully;
(3) moulding: specification as requested, make the base material of different shape;
(4) drying: the base material after the moulding carries out seasoning on drying plate, when residual moisture is less than 5wt%, puts into the blowing-type baking oven and carries out drying, treats to place when moisture is less than 3wt% groom's stove;
(5) sintering: sintering temperature took time 3 hours altogether for being no more than 300 ℃;
(6) cooling: soaking time control naturally cooled to normal temperature after 3 hours.
CNA2007101326662A 2007-09-18 2007-09-18 Graphite base heatproof and heat insulating material and production technique thereof Pending CN101391878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101326662A CN101391878A (en) 2007-09-18 2007-09-18 Graphite base heatproof and heat insulating material and production technique thereof

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Application Number Priority Date Filing Date Title
CNA2007101326662A CN101391878A (en) 2007-09-18 2007-09-18 Graphite base heatproof and heat insulating material and production technique thereof

Publications (1)

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CN101391878A true CN101391878A (en) 2009-03-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515649A (en) * 2011-12-26 2012-06-27 李金峰 Perlite external wall insulation board and processing method thereof
CN102718546A (en) * 2012-06-07 2012-10-10 南通市海顺化工有限公司 Manufacturing method of heat-resistant building plate
WO2014135154A1 (en) * 2013-03-08 2014-09-12 ReflectoTec KG Building material additive, building material and use thereof
EP3406581A1 (en) * 2017-05-26 2018-11-28 kipan GmbH Dry mixture with graphite particles, method for producing a shaped article from this dry mixture and shaped article made by this method
CN109641798A (en) * 2016-07-20 2019-04-16 西索斯公司 Modified geo-polymer and modified geopolymer composite material and its production technology

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515649A (en) * 2011-12-26 2012-06-27 李金峰 Perlite external wall insulation board and processing method thereof
CN102718546A (en) * 2012-06-07 2012-10-10 南通市海顺化工有限公司 Manufacturing method of heat-resistant building plate
WO2014135154A1 (en) * 2013-03-08 2014-09-12 ReflectoTec KG Building material additive, building material and use thereof
CN109641798A (en) * 2016-07-20 2019-04-16 西索斯公司 Modified geo-polymer and modified geopolymer composite material and its production technology
EP3406581A1 (en) * 2017-05-26 2018-11-28 kipan GmbH Dry mixture with graphite particles, method for producing a shaped article from this dry mixture and shaped article made by this method
WO2018215168A1 (en) * 2017-05-26 2018-11-29 kipan GmbH Process for producing a molding from a dry mixture comprising graphite particles and molding thus produced

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Open date: 20090325