CN102825650A - Making method of high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board - Google Patents
Making method of high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board Download PDFInfo
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- CN102825650A CN102825650A CN2012102516928A CN201210251692A CN102825650A CN 102825650 A CN102825650 A CN 102825650A CN 2012102516928 A CN2012102516928 A CN 2012102516928A CN 201210251692 A CN201210251692 A CN 201210251692A CN 102825650 A CN102825650 A CN 102825650A
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Abstract
The invention discloses a making method of a high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board, comprising the following steps of: (1) mixing silicon raw materials and calcium raw materials according to a Ca/Si mole ratio of 0.9-1.1, then, injecting the mixed raw materials into a dynamic reaction kettle, synthesizing by using superheated steam of 250-400 DEG C at the steam pressure of 2.0-2.7MPa for 3-8hours to obtain xonotlite slurry, and adding reinforced fibers; (2) removing redundant water in the xonotlite slurry obtained in the step (1) and adding 0.1-8% of inorganic glue (according to the weight ratio of the slurry to the inorganic glue); (3) adding 0.1-8% of reaction type organic silicon waterproof agent in the xonotlite slurry obtained in the step (2) to enable the reaction type organic silicon waterproof agent and the slurry to form interface combination; and (4) carrying out compression molding on the xonotlite slurry prepared in the step (3), and drying to obtain the material-uniform high-strength light-weight complete-hydrophobic xonotlite board. The fireproof insulation board produced by the invention has the characteristics of high strength, uniform material, no bubble hole, light weight and complete hydrophobicity.
Description
Technical field
The present invention relates to a kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, be mainly used in the flue airduct in building exterior wall heat preserving fire prevention, steel construction insulated fire, anti-fire door core board and the architectural engineering.
Background technology
The dynamically synthetic method of traditional production eakleite is in 180 ℃～210 ℃ temperature of saturated vapor; Pressure synthesizes at 1.8～2.2MPa; Slip Ca/Si is 0.9～1.1 than (mol ratio); Owing to receive siliceous raw material, the active influence of calcareous raw material, be difficult to fully form eakleite, even it is also abundant inadequately to form the crystal of its growth.
Before this invention; Make hard silico-calcium formed body intensity flexibility higher; In Japan Patent, have the invention of addition polymerization compound dispersant and process eakleite type imitation wood; But the Japan Patent invention is to add organic cementing material, can cause fire protecting performance to descend, and intensity and the normal temperature strength difference behind its high temperature is too big simultaneously; Organic gel is ineffective behind the high temperature.
Make eakleite sheet material hydrophobic, traditional production method is at the formed body external coating, is surperficial hydrophobic, and its prolonged property is poor.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art; The object of the present invention is to provide a kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED; The inventive method is simple, and the fireproof heated board that adopts the present invention to produce has the intensity height, and material is even; No steam bubble hole, the characteristics of the light and complete hydrophobic of unit weight.
To achieve these goals, the technical scheme of the present invention's employing is: a kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 0.9～1.1 by Ca/Si; Inject the dynamic response still, with 250 ℃～400 ℃ superheated steams, steam pressure synthesized 3～8 hours at 2.0Mpa～2.7MPa; Obtain the eakleite slurry, add fortifying fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 0.1～8% inorganic glue (pressing the weight ratio of slip and inorganic glue);
3) in step 2) add 0.1～8% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) eakleite for preparing slurry is through compression molding, after drying, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding fortifying fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the inorganic glue waterproofing agent of organosilicon amalgam for preparing earlier soak time 1 minute～240 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Described fortifying fibre is glass fibre, cotton fiber or paper fiber.
Described inorganic glue is waterglass or Ludox.
The invention has the beneficial effects as follows:
The fireproof heated board that adopts the present invention to produce, intensity is high, material does not evenly have steam bubble, unit weight is light, and density is at 160～550kg/m
3Between, heat resisting temperature is between 850～1100 ℃.Concrete characteristics of the present invention are:
1) is to use 250 ℃ of-400 ℃ of superheated steams; Steam pressure is greater than 2.2MPa-2.7MPa; Carry out dynamically synthesizing, can make synthetic slurry be completed into eakleite, overcome the synthetic method of traditional static; Have only under the situation that improves siliceous raw material and calcareous raw material activity, just can be completed into eakleite.But improve its activity is to be difficult in the production control accomplish.Adopt its formed body of the present invention higher with density intensity; Thermal conductivity factor is also little; Heat resisting temperature is also high; This is that its temperature is higher when other conditions are identical, pressure is bigger because of the eakleite crystal, and its crystal development is bigger, even because some are siliceous, the calcareous raw material poor activity a bit can form hard silico-calcium crystal.The present invention has overcome the influence of siliceous raw material and calcareous raw material poor activity, under above synthesis condition, can fully form the eakleite slurry.The formed body that obtains with this process, quality evenly (because of slurry drench water channel when the moulding unimpeded), higher with proportion intensity.Its rupture strength can reach 0.5-1.4MPa, and formed body has also reached 1050 ℃ of the heat resisting temperatures of eakleite fully;
2) before becoming base, add inorganic glue or after becoming the base drying, soak and add inorganic glue, make formed body intensity and flexibility higher, workability is better, receive high temperature after loss of strength little, and have noninflammability.Changed and add organic gel before the present invention, fire protecting performance descends, and the shortcoming that intensity descends behind the high temperature has significantly improved the intensity and the flexibility of sheet forming simultaneously.
3) waterproof method of traditional eakleite sheet material is: at the surfaces coated waterproofing agent, it is unfavorable being used in the external wall fireproof heat insulating like the method, has only complete hydrophobic to be only reliably.The present invention accomplishes integral hydrophobic, has overcome to brush the shortcoming of having only surperficial hydrophobic.
The present invention makes the complete hydrophobic of hard eakleite formed body; Its production technology is before moulding, to remove water unnecessary in the slurry; Add by a certain percentage can with the waterproofing agent of slurry reaction, make it to form the interface and combine, reshaping oven dry and obtain formed body; Or the sheet material behind the shaping and drying is soaked in makes it the interface in the reaction shape waterproofing agent and fully cover, reach complete good waterproof effect.
That the present invention produces is high-strength, lightweight, integral hydrophobic, fire resistant warming plate, fireproof heat insulating, light thermal-insulation fire resistant door core, the fireproof heat insulating of building ventilation pipeline and the insulated fire of cable trough of the exterior-wall heat insulation that is used to build fire prevention, steel construction.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further explain.
Embodiment one
A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 0.9 by Ca/Si, inject the dynamic response still, with 250 ℃ of superheated steams, steam pressure synthesized 3 hours at 2.0Mpa, obtained the eakleite slurry, the adding fortifying fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 0.1% inorganic glue (pressing the weight ratio of slurry and inorganic glue);
3) in step 2) add 0.1% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) eakleite for preparing slurry is through compression molding, after drying, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding fortifying fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the waterglass waterproofing agent of organosilicon amalgam for preparing earlier soak time 10 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Embodiment two
A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 1.1 by Ca/Si, inject the dynamic response still, with 400 ℃ of superheated steams, steam pressure synthesized 8 hours at 2.7MPa, obtained the eakleite slurry, the adding fortifying fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 8% inorganic glue (pressing the weight ratio of slurry and inorganic glue);
3) in step 2) add 8% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) the eakleite slurry for preparing is through compression molding, after oven dry, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding fortifying fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the Ludox waterproofing agent of organosilicon amalgam for preparing earlier soak time 240 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Embodiment three
A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 1.0 by Ca/Si, inject the dynamic response still, with 320 ℃ of superheated steams, steam pressure synthesized 5 hours at 2.4Mpa, obtained the eakleite slurry, the adding fortifying fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 5% inorganic glue (pressing the weight ratio of slurry and inorganic glue);
3) in step 2) add 6% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) the eakleite slurry for preparing is through compression molding, after oven dry, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding fortifying fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the inorganic glue waterproofing agent of organosilicon amalgam for preparing earlier soak time 120 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
Adopt the present invention and obtain the sheet material desired value, referring to table 1 table 1
Existing GB set quota is referring to table 2 table 2
Through of the comparison of above table 1, explain that the present invention is state-of-the-art technology to bending and compressive strength flexibility and the processability that improves sheet material with table 2 data.
Claims (5)
1. the preparation method of a high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED is characterized in that, may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 0.9～1.1 by Ca/Si; Inject the dynamic response still, with 250 ℃～400 ℃ superheated steams, steam pressure synthesized 3～8 hours at 2.0Mpa～2.7MPa; Obtain the eakleite slurry, add fortifying fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 0.1～8% inorganic glue (pressing the weight ratio of slurry and inorganic glue);
3) in step 2) add 0.1～8% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) the eakleite slurry for preparing is through compression molding, after oven dry, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
2. the preparation method of a kind of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED according to claim 1 is characterized in that, in the eakleite slurry that said step 1) obtains, add fortifying fibre after; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the inorganic glue waterproofing agent of organosilicon amalgam for preparing earlier soak time 1 minute～240 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
3. the preparation method of a kind of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED according to claim 1 is characterized in that, may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 0.9 by Ca/Si, inject the dynamic response still, with 250 ℃ of superheated steams, steam pressure synthesized 3 hours at 2.0Mpa, obtained the eakleite slurry, the adding glass fibre;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 0.1% inorganic glue (pressing the weight ratio of slurry and inorganic glue);
3) in step 2) add 0.1% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) the eakleite slurry for preparing is through compression molding, after oven dry, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material;
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding glass fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the waterglass waterproofing agent of organosilicon amalgam for preparing earlier soak time 10 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
4. the preparation method of a kind of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED according to claim 1 is characterized in that, may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 1.1 by Ca/Si, inject the dynamic response still, with 400 ℃ of superheated steams, steam pressure synthesized 8 hours at 2.7MPa, obtained the eakleite slurry, the adding cotton fiber;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 8% inorganic glue (pressing the weight ratio of slip and inorganic glue);
3) in step 2) add 8% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slip;
4) with above-mentioned steps 3) eakleite for preparing slurry is through compression molding, after drying, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material;
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding cotton fiber and glass fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the Ludox waterproofing agent of organosilicon amalgam for preparing earlier soak time 240 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
5. the preparation method of a kind of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED according to claim 1 is characterized in that, may further comprise the steps:
1) with siliceous raw material with after calcareous raw material mixes than (mol ratio) 1.0 by Ca/Si, inject the dynamic response still, with 320 ℃ of superheated steams, steam pressure synthesized 5 hours at 2.4Mpa, obtained the eakleite slurry, adding paper fiber;
2) the eakleite slurry that step 1) is obtained removes unnecessary water, adds 5% inorganic glue (pressing the weight ratio of slip and inorganic glue);
3) in step 2) add 6% response type waterproofing agent of organosilicon in the resulting eakleite slurry, make it to form the interface and combine with slurry;
4) with above-mentioned steps 3) eakleite for preparing slurry is through compression molding, after drying, obtains that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material;
Of the present inventionly further be improved to: after in the eakleite slurry that said step 1) obtains, adding paper fiber and glass fibre; Directly carry out compression molding; Dry, the goods after the oven dry are soaked in and give in the waterglass waterproofing agent of organosilicon amalgam for preparing earlier soak time 120 minutes again; Dry again, obtain just that material is even, intensity is high, the complete hydrophobic type eakleite of lightweight sheet material.
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Cited By (9)
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| CN103539138A (en) * | 2013-11-11 | 2014-01-29 | 内蒙古大唐国际再生资源开发有限公司 | Method for preparing xonotlite by utilizing desiliconized alkali liquor |
| CN104003668A (en) * | 2014-06-13 | 2014-08-27 | 田树 | Hydrophobic fiber-reinforced calcium silicate board and manufacturing method thereof |
| CN104446601A (en) * | 2014-11-04 | 2015-03-25 | 王民艳 | Method for manufacturing high-strength low-heat conduction coefficient xonotlite heat-insulating material |
| CN104743977A (en) * | 2015-03-12 | 2015-07-01 | 江苏科技大学 | Fireproof thermal insulation material used for ship bulkhead as well as preparation method and application thereof |
| CN104926248A (en) * | 2015-06-12 | 2015-09-23 | 赤峰金辉科技有限公司 | Method for producing light calcium silicate boards through high-silicon coal ash |
| CN104709914B (en) * | 2013-12-12 | 2017-02-15 | 神华集团有限责任公司 | Xonotlite material and xonotlite thermal-insulation material and their preparation methods |
| CN106673597A (en) * | 2016-11-19 | 2017-05-17 | 朱兰珍 | Preparation method of silicon calcium thermal insulation material |
| CN114014630A (en) * | 2021-11-25 | 2022-02-08 | 内蒙古中建亚太建材科技有限公司 | Method for preparing tobermorite type fireproof material |
| CN114751707A (en) * | 2022-05-18 | 2022-07-15 | 莱州明光隔热材料有限公司 | Internal and external hydrophobic xonotlite calcium silicate plate and manufacturing method and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539138A (en) * | 2013-11-11 | 2014-01-29 | 内蒙古大唐国际再生资源开发有限公司 | Method for preparing xonotlite by utilizing desiliconized alkali liquor |
| CN103539138B (en) * | 2013-11-11 | 2015-11-25 | 内蒙古大唐国际再生资源开发有限公司 | A kind of method utilizing desiliconization alkali lye to prepare xonotlite |
| CN104709914B (en) * | 2013-12-12 | 2017-02-15 | 神华集团有限责任公司 | Xonotlite material and xonotlite thermal-insulation material and their preparation methods |
| CN104003668A (en) * | 2014-06-13 | 2014-08-27 | 田树 | Hydrophobic fiber-reinforced calcium silicate board and manufacturing method thereof |
| CN104446601A (en) * | 2014-11-04 | 2015-03-25 | 王民艳 | Method for manufacturing high-strength low-heat conduction coefficient xonotlite heat-insulating material |
| CN104743977A (en) * | 2015-03-12 | 2015-07-01 | 江苏科技大学 | Fireproof thermal insulation material used for ship bulkhead as well as preparation method and application thereof |
| CN104926248A (en) * | 2015-06-12 | 2015-09-23 | 赤峰金辉科技有限公司 | Method for producing light calcium silicate boards through high-silicon coal ash |
| CN106673597A (en) * | 2016-11-19 | 2017-05-17 | 朱兰珍 | Preparation method of silicon calcium thermal insulation material |
| CN114014630A (en) * | 2021-11-25 | 2022-02-08 | 内蒙古中建亚太建材科技有限公司 | Method for preparing tobermorite type fireproof material |
| CN114751707A (en) * | 2022-05-18 | 2022-07-15 | 莱州明光隔热材料有限公司 | Internal and external hydrophobic xonotlite calcium silicate plate and manufacturing method and application thereof |
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