CN1084202A - hydrophobic powder and production method thereof - Google Patents
hydrophobic powder and production method thereof Download PDFInfo
- Publication number
- CN1084202A CN1084202A CN 92110778 CN92110778A CN1084202A CN 1084202 A CN1084202 A CN 1084202A CN 92110778 CN92110778 CN 92110778 CN 92110778 A CN92110778 A CN 92110778A CN 1084202 A CN1084202 A CN 1084202A
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- CN
- China
- Prior art keywords
- powder
- hydrophobic
- pitch
- production method
- bitumen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1044—Bituminous materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Hydrophobic powder and production method thereof is characterized in that the solution with pitch, bitumen emulsion or pitch and organic solvent is hydrophobic substance, and lime powder is a base-material, heats mixing in thermal treatment unit or heating tool.By the physical and chemical adsorption process of pitch and lime powder, make lime powder surface hydrophobisation and the hydrophobic powder.Hydrophobic powder of the present invention is with low cost, excellent property, and manufacture method is simple, and facility investment is few, and is with short production cycle; The hydrophobic powder can be used for waterproof, the protection against the tide of engineerings such as house, road.
Description
The invention belongs to construction engineering waterproof material and production method thereof, particularly hydrophobic powder and production method thereof.
The water-proof material kind of existing building engineering is a lot, mainly contain waterproof paint, waterproofing unction, waterproof roll, drainage takes place in the influence that these water-proof material ubiquities because of being subjected to basic unit's strain crack, China uses to such an extent that be two felts, three oil or three floors of tarred felt and four floors of tar the most widely at present, the disadvantage of this water-proof material is the multilayer heat construction, and construction complexity, contaminate environment, labor condition are poor.
The wetting ability water-proofing powder of being made up of aluminum stearate, calcium hydroxide, terra alba etc. is to mix with certain proportion to make cement admixture in mortar or the concrete, strengthens mortar or concrete impermeability.The hydrophobic powder then is different from this water-proofing powder, but forms waterproof layer (body) by the hydrophobic powder is independent with particle dispersion, relies on anti-capillary pressure to carry out waterproof, protection against the tide.
The free-running property water-proof material has overcome many defectives of conventional waterproof material, thereby becomes a kind of waterproof material of excellent property and accepted by people very soon.
Invention disclosed patent: 1., the CN87101009A hydrophobic powder for building and the production method thereof that propose, be to be hydrophobic material, by lipid acid and C with the high lipid acid of price
a(OH)
2Chemical reaction make lime particulate hydrophobisation, its production process cycle is long, makes this hydrophobe cost very high; 2., the heat insulation town pigment that propose of CN1056513A are hydrophober with the stearic acid, the base material that this technology is used is to form through the stone material of fixing prescription, needs calcination, digestion, carburizing reagent during production, complex process, facility investment is big.3., the modified fat acid of using that proposes of CN1060863A is hydrophobic substance, lipid acid is still main hydrophobic composition, its used organic solvent amount is big, and needs the distillation cooling to reclaim solvent, therefore makes product cost higher.
The objective of the invention is to overcome the deficiency of existing water-proofing powder and production method, use cheap starting material and easy production technique to produce low, the well behaved hydrophobic powder of cost, thereby a kind of hydrophobic powder and production method thereof are provided.
Task of the present invention is finished like this:
1, the bituminous material of using-system densification carries out compound with hydrophilic lime powder under thermal treatment.Pitch and alkaline powder mainly produce following interaction and interfacial effect: pitch and powder Surface Physical absorption under the hot conditions; Pitch is to the diffusion of powder; The acid fat glue of bituminous is with the surface chemical reaction of self polar group and alkaline powder.The alkalescence of powder has determined the reaction power of pitch and powder, thereby has also determined the adhesion strength of pitch on the powder surface.After being adsorbed by powder, pitch can form the polar molecule of one deck orientation, since the effect of air, the inboard free energy minimizing of the adsorption layer of pitch and powder, and the outside forms aligning of non-polar molecule, has strengthened the hydrophobic nature of powder.Therefore pitch and the compound of lime powder are not the simple coatings of hydrophobic material and powder.Principle of the present invention that Here it is.
2, production method of the present invention is: earlier pitch class material is heated to melted state or boiling, lime powder is preheating to 100～240 ℃, under fully stirring the two is mixed, with pulverize, fine mill will lump or the coarse particles refinement, under 100～240 ℃ of temperature, heat-treat again and promptly get the hydrophobic powder.To different types of bituminous material, heat treated temperature also changes thereupon.
3, the weight ratio of material prescription of the present invention is, lime powder: pitch class hydrophobic substance=100: 2～15.
The used pitch class hydrophobic substance of the present invention is the petroleum pitch of various labels or the solution of coal-tar pitch, bitumen emulsion, pitch and organic solvent.Can select wherein a kind of or several during production, wherein use the protobitumen cost the cheapest.
The used dry hydrate of the present invention can replace with the alkaline powder of other PH＞10.
4, Fig. 1 is Production Flow Chart of the present invention.
Processing → hydrophobic powder finished product again under 100～240 ℃ of temperature.
Embodiment 1: with 5K
g200
#Petroleum pitch preheats 140 ℃, 100K
gDry hydrate is preheating to 180 ℃, makes the two thorough mixing, stirred under 180 ℃ of temperature 10 minutes, behind the dispersion and fining, under 180 ℃ of temperature, continue to stir 20 minutes the hydrophobic powder.
Embodiment 2, with 7K
g140 ℃ of pitch ointment preheatings, 100K
gDry hydrate is preheating to 180 ℃, makes the two thorough mixing, stirred under 180 ℃ of temperature 10 minutes, behind the dispersion and fining, under 180 ℃ of temperature, continue to stir 20 minutes the hydrophobic powder.
Hydrophobic powder of the present invention and production method thereof have following characteristics:
(1), make hydrophobic material and lime powder is made hydrophobic powder base material, cost of material is cheap, and production cost is 1/10～1/5 of a commercial like product cost with bitumen.
(2), production technique is simple, with short production cycle, whole process only needs more than the dozens of minutes to hour, the production efficiency height.Can use specific equipment to produce small instruments and tools productions such as also available frying pan, roller, less investment in batches.
(3), owing to carried out physics, chemical reaction simultaneously, good, the sound construction of hydrophobic mealiness energy of production.
(4), the hydrophobic powder is fines, main component is an inorganic powder, unit weight is light, possesses over-all propertieies such as heat insulation, insulation, insulation, fire-retardant, waterproof, waterproof.Can be applied independently in roofing, waterproof such as vault, warehouse, moistureproof position.
Claims (4)
1, a kind of hydrophobic powder and production method thereof is characterized in that lime powder is a base-material, and bitumen is a hydrophobic substance, lime powder and pitch class hydrophobic substance proportioning weight=100: 2～15.
2, hydrophobic powder according to claim 1 and production method thereof is characterized in that can using other alkaline powder of PH＞10 to replace as the lime powder of base material.
3, hydrophobic powder according to claim 1 and production method thereof is characterized in that, bitumen is a kind of of following material or several:
(1), petroleum pitch;
(2), coal-tar pitch;
(3), emulsified bitumen;
(4), the solution of pitch and organic solvent.
4, according to described hydrophobic powder of claim 1-3 and production method thereof, it is characterized in that:
(1), bitumen is heated to fusing or boiling, preheating lime powder;
(2), with bitumen and stone flour thorough mixing under 100～240 ℃ of temperature, pulverize caking, thinning processing;
(3), under 100～240 ℃ of temperature, heat-treat again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110778 CN1084202A (en) | 1992-09-11 | 1992-09-11 | hydrophobic powder and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110778 CN1084202A (en) | 1992-09-11 | 1992-09-11 | hydrophobic powder and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1084202A true CN1084202A (en) | 1994-03-23 |
Family
ID=4944977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110778 Pending CN1084202A (en) | 1992-09-11 | 1992-09-11 | hydrophobic powder and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1084202A (en) |
-
1992
- 1992-09-11 CN CN 92110778 patent/CN1084202A/en active Pending
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