CN102659332A - Preparation method of chemical vitrified perlite - Google Patents
Preparation method of chemical vitrified perlite Download PDFInfo
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- CN102659332A CN102659332A CN201210088648XA CN201210088648A CN102659332A CN 102659332 A CN102659332 A CN 102659332A CN 201210088648X A CN201210088648X A CN 201210088648XA CN 201210088648 A CN201210088648 A CN 201210088648A CN 102659332 A CN102659332 A CN 102659332A
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Abstract
The invention discloses a preparation method of chemical vitrified perlite. The preparation method aims at solving the problems that common expanded perlite has the defects of low strength, a high water absorption rate and frangibility and electric furnace-vitrified perlite has the defects of high process complexity, high energy consumption and high cost. The preparation method comprises the following steps of a, adding 2 to 5kg of calcium stearate into each cubic meter of perlite, mixing uniformly, adding 5kg of a curing agent into the mixture, and mixing uniformly, b, based on each cubic meter of perlite, injecting 20 to 60g of a mixed emulsion of sodium silicate and a waterproofing agent into the mixture obtained by the step a, wherein a weight ratio of sodium silicate and the waterproofing agent is 10: (0.5 to 1), mixing uniformly, and carrying out drying dehydration to obtain vitrified beads with vitreous crystal shells of which the surfaces are coated with waterproofing layers.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of preparation method of lagging material, particularly a kind of preparation method of chemical vitreous pearlite.
Background technology
Glass bead; Claiming vitreous pearlite again, is a kind of acid vitreous lava mineral substance (pitchstone ore in sand form), is processed to form the vitreous sealing of the Duo Kong ﹑ of Nei portion surface through special technology processing and production technique; Being the thin footpath of spherule particle, is a kind of high performance novel inorganic light heat-insulating material that has.Because surperficial vitreous forms certain granule strength, physicochemical property is very stable, and ageing-resistant weathering resistance is strong, has excellent Jue Re ﹑ Fang Huo ﹑ sound absorption qualities, is fit to make lightweight filler aggregate and Jue Re ﹑ Fang Huo ﹑ Xi Yin ﹑ lagging material in the numerous areas.Existing vitreous pearlite is chemical method and makes, and makes through electric furnace (vitrification furnace) high temperature, and complex process and energy consumption are high, have defect of high cost.
Like application number is the preparation method that the Chinese invention patent of 200910155078.X provides a kind of glass bead, and it comprises following process step: and the surface is softening → heart is softening → and crystal water gasification → not broken shell expansion → surperficial vitreous closed pore → surperficial closed pore strengthen → strengthens → obtains finished product again.This method remains and adopts the vitrification furnace pyroprocessing, and complex process, makes product cost improve greatly.
Summary of the invention
Shortcomings such as it is low to the present invention is directed to normal expanded perlite intensity, and water-intake rate is big, and is frangible, and electric furnace vitreous pearlite complex process energy consumption is high, defectives such as cost height provide a kind of preparation method of chemical vitreous pearlite.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of preparation method of chemical vitreous pearlite is characterized in that comprising the steps:
A, every cubic metre of perlite add the 2-5kg calcium stearate, add the 5kg solidifying agent after mixing again, mixing,
B, in every cubic metre of perlite; The mixed emulsion of 20-60kg water glass and water-resisting agent is sprayed into the mixture that step a obtains; Wherein the weight ratio of water glass and water-resisting agent is 10:0.5-1; Mix the after drying dehydration, obtain the glass bead that the surface forms the vitreous crystallization shell of waterproof layer.
As preferably, it is that microwave frequency is 2450 ± 50MHz, or 100-150 ℃ is heated to the glass bead drying through microwave heating 1-3min that described drying and dehydrating is handled.
As preferably, described solidifying agent is phosphoric acid silicon or Sodium Silicofluoride 98min, and described water-resisting agent is that fluorine is a water-resisting agent.The fluorine that the present invention adopts is that water-resisting agent is a kind of fluoropolymer emulsion that is used for the textile water proof oil resistant finish, generally is used for textile field, through contriver's test of many times; Find that this water-resisting agent has played waterproof action preferably in the preparation of glass bead; Can with the present invention's organic assembling of filling a prescription, make the finished product waterproof rate lower, good moldability; Can reach stable water-repellent oil-repellent effect, not influence other performance of product simultaneously.
As preferably, the modulus of said water glass is 2.8～3.0.
As preferably, the particle diameter of described glass bead is 0.5-1.2mm.
Calcium stearate has hydrophobicity, and is Powdered, and the surface with being wrapped in perlite particle after perlite mixes can't get into perlite particle inside.The auxiliary agents such as water-resisting agent that can prevent follow-up adding get into perlite particle inside, avoid increasing the unit weight of product.Thereby the water-intake rate that makes product is reduced, realized that chemical process prepares vitreous pearlite.Perlite is earlier with after calcium stearate mixes, mixes with water-resisting agent etc. again, and this moment, water-resisting agent and sizing agent (water glass) were bonded at the perlite surface uniformly, obtained the glass bead of the vitreous crystallization shell of uniform particles and surperficial formation waterproof layer after the curing.The vitreous pearlite performance that the inventive method is produced is suitable with electric furnace vitreous pearlite performance.
The vitreous pearlite performance that the inventive method is produced is suitable with electric furnace vitreous pearlite performance, but cost is low by 20%, and energy consumption reduces by 90%.
Embodiment
Through specific embodiment, technical scheme of the present invention is further specified below.Should be appreciated that enforcement of the present invention is not limited to following embodiment, all will fall into protection domain of the present invention any pro forma accommodation and/or the change that the present invention made.
In the present invention, if not refer in particular to, all part, per-cents are weight unit, and all equipment and raw material etc. all can be buied from market or the industry is commonly used.The water glass of indication of the present invention is sodium silicate solution, is the building field common used material.Fluorine is a water-resisting agent, Xiamen peace Kodak chemical industry.
Embodiment 1-8:
Press the prescription in the table 1, get perlite and calcium stearate (Powdered) and carried out premix 2-5 minute, make the calcium stearate powder be uniformly coated on perlitic surface; (embodiment 1-5 is a phosphoric acid silicon to add solidifying agent after mixing again; Embodiment 6-8 is a Sodium Silicofluoride 98min), mix, in the material that mixes, spraying into by water glass (modulus of water glass is 2.8～3.0) and fluorine then is the mixed solution that water-resisting agent is formed; Wherein the weight ratio of water glass and water-resisting agent is 10:0.5-1; Carry out drying and dehydrating through microwave heating 1-3min after mixing, microwave frequency is 2450 ± 50MHz, obtains the glass bead that the surface forms the vitreous crystallization shell of waterproof layer.
Microwave drying in the present embodiment can be heated to the glass bead drying process by 100-150 ℃ and replace, but microwave drying makes the product that obtains not yielding, not easy to crack, and refractoriness raising 8%, and cylindrical compress strength has improved 17%.The particle diameter of the glass bead that this law makes is 0.5-1.2mm.
Through test, the performance index of the chemical vitreous pearlite that the present invention makes are seen table 2.
Can be known that by above data chemical vitreous pearlite of the present invention has lower water-intake rate, other parameters are suitable with existing electric furnace vitreous pearlite performance, but it is lower more than 20% than prior art cost to produce glass bead by this law, and energy consumption reduces more than 90%.Energy-conserving and environment-protective, the product that makes has price advantage, in the application of building field, has more advantage.
Above-described embodiment is a kind of preferable scheme of the present invention, is not that the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (9)
1. the preparation method of a chemical vitreous pearlite is characterized in that comprising the steps:
A, every cubic metre of perlite add the 2-5kg calcium stearate, add the 5kg solidifying agent after mixing again, mixing,
B, in every cubic metre of perlite; The mixed emulsion of 20-60kg water glass and water-resisting agent is sprayed into the mixture that step a obtains; Wherein the weight ratio of water glass and water-resisting agent is 10:0.5-1; Mix the after drying dehydration, obtain the glass bead that the surface forms the vitreous crystallization shell of waterproof layer.
2. the preparation method of chemical vitreous pearlite according to claim 1 is characterized in that: it is that microwave frequency is 2450 ± 50MHz, or 100-150 ℃ is heated to the glass bead drying through microwave heating 1-3min that described drying and dehydrating is handled.
3. the preparation method of chemical vitreous pearlite according to claim 1 and 2, it is characterized in that: described solidifying agent is phosphoric acid silicon or Sodium Silicofluoride 98min, described water-resisting agent is that fluorine is a water-resisting agent.
4. the preparation method of chemical vitreous pearlite according to claim 1 and 2, it is characterized in that: the modulus of said water glass is 2.8～3.0.
5. the preparation method of chemical vitreous pearlite according to claim 3, it is characterized in that: the modulus of said water glass is 2.8～3.0.
6. the preparation method of chemical vitreous pearlite according to claim 1 and 2, it is characterized in that: the particle diameter of described glass bead is 0.5-1.2mm.
7. the preparation method of chemical vitreous pearlite according to claim 3, it is characterized in that: the particle diameter of described glass bead is 0.5-1.2mm.
8. the preparation method of chemical vitreous pearlite according to claim 4, it is characterized in that: the particle diameter of described glass bead is 0.5-1.2mm.
9. the preparation method of chemical vitreous pearlite according to claim 5, it is characterized in that: the particle diameter of described glass bead is 0.5-1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210088648 CN102659332B (en) | 2012-03-30 | 2012-03-30 | Preparation method of chemical vitrified perlite |
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| CN 201210088648 CN102659332B (en) | 2012-03-30 | 2012-03-30 | Preparation method of chemical vitrified perlite |
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| CN102659332B CN102659332B (en) | 2013-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810586A (en) * | 2019-01-18 | 2019-05-28 | 刘慧生 | A kind of thermal insulation coatings and preparation method thereof and heat insulation coating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060645A (en) * | 1990-10-16 | 1992-04-29 | 孙琦茂 | A kind of preparation method of waterproof insulating pearlite product |
| CN1579985A (en) * | 2004-05-20 | 2005-02-16 | 上海宝能轻质材料有限公司 | Hydrophobic expanded pearlite for low temperature and its preparing method |
| CN101186475A (en) * | 2007-11-30 | 2008-05-28 | 华南理工大学 | Modified vitrification micro-bead thermal insulation mortar and preparation method thereof |
-
2012
- 2012-03-30 CN CN 201210088648 patent/CN102659332B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060645A (en) * | 1990-10-16 | 1992-04-29 | 孙琦茂 | A kind of preparation method of waterproof insulating pearlite product |
| CN1579985A (en) * | 2004-05-20 | 2005-02-16 | 上海宝能轻质材料有限公司 | Hydrophobic expanded pearlite for low temperature and its preparing method |
| CN101186475A (en) * | 2007-11-30 | 2008-05-28 | 华南理工大学 | Modified vitrification micro-bead thermal insulation mortar and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810586A (en) * | 2019-01-18 | 2019-05-28 | 刘慧生 | A kind of thermal insulation coatings and preparation method thereof and heat insulation coating |
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| CN102659332B (en) | 2013-10-02 |
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Effective date of registration: 20220621 Address after: 321000 No. 699, West Linjiang Road, bailongqiao Town, Wucheng District, Jinhua City, Zhejiang Province (self declaration) Patentee after: Zhejiang Yihe New Material Co.,Ltd. Address before: 465150 Fanfang group, Chunhe village, taolinpu Town, Huangchuan County, Xinyang City, Henan Province Patentee before: Chen Xianjin |