CN102825650B - A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED - Google Patents
A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED Download PDFInfo
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Abstract
A kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, comprise the following steps: after 1) siliceous raw material being mixed by Ca/Si ratio (mol ratio) 0.9 ~ 1.1 with calcareous raw material, inject dynamic response still, with 250 DEG C ~ 400 DEG C superheated steams, steam pressure carries out synthesis 3 ~ 8 hours at 2.0Mpa ~ 2.7MPa, obtain eakleite slurry, add fortifying fibre; 2) by step 1) the eakleite slurry that obtains removes unnecessary water, adds the inorganic glue (weight ratio by slip and inorganic glue) of 0.1 ~ 8%; 3) in step 2) add in the eakleite slurry that obtains 0.1 ~ 8% response type waterproofing agent of organosilicon, make it to form interface cohesion with slip; 4) by above-mentioned steps 3) eakleite for preparing slurry is through compression molding, after oven dry, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material, it is high that the fireproof heated board that the present invention produces has intensity, uniform in material, without steam bubble hole, the feature of the light and complete hydrophobic of unit weight.
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 air pipe in building exterior wall heat preserving fire prevention, steel construction insulated fire, anti-fire door core board and architectural engineering.
Background technology
The method of traditional production eakleite dynamics synthesize is in saturated vapor 180 DEG C ~ 210 DEG C temperature, pressure synthesizes at 1.8 ~ 2.2MPa, slip Ca/Si ratio (mol ratio) is 0.9 ~ 1.1, owing to being subject to the impact of siliceous raw material, calcareous raw material activity, be difficult to fully form eakleite, even if it is also abundant not to form its crystal of growing.
Before this invention, make hard silico-calcium formed body intensity flexibility higher, in Japan Patent, have the invention of addition polymerization compound dispersant and make eakleite type imitation wood, but Japan Patent invention adds organic cementing material, fire protecting performance can be caused to decline, the intensity simultaneously after its high temperature and normal temperature strength difference too large; After high temperature, organic gel is ineffective.
Make eakleite sheet material hydrophobic, traditional production method is at formed body external coating, just surface hydrophobic, and its prolonged property is poor.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the 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, it is high that the fireproof heated board adopting the present invention to produce has intensity, uniform in material, without steam bubble hole, the feature of the light and complete hydrophobic of unit weight.
To achieve these goals, the technical solution used in the present invention is: a kind of preparation method of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, comprises the following steps:
1) after siliceous raw material being mixed by Ca/Si ratio (mol ratio) 0.9 ~ 1.1 with calcareous raw material, inject dynamic response still, with 250 DEG C ~ 400 DEG C superheated steams, steam pressure carries out synthesis 3 ~ 8 hours at 2.0Mpa ~ 2.7MPa, obtain eakleite slurry, add fortifying fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, adds the inorganic glue (weight ratio by slip and inorganic glue) of 0.1 ~ 8%;
3) in step 2) add in the eakleite slurry that obtains 0.1 ~ 8% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) eakleite for preparing slurry through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Further improvement of the present invention is: in described step 1) add fortifying fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the inorganic glue waterproofing agent of organosilicon mixture giving and first preparing, soak time 1 minute ~ 240 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite 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 employing the present invention produces, intensity is high, uniform in material is light without steam bubble, unit weight, and density is at 160 ~ 550kg/m
3between, heat resisting temperature is between 850 ~ 1100 DEG C.Concrete feature of the present invention is:
1) utilization 250 DEG C of-400 DEG C of superheated steams are, steam pressure is greater than 2.2MPa-2.7MPa, carry out dynamics synthesize, synthesis slurry can be made to be fully formed eakleite, overcome the method for traditional static synthesis, when being only improved siliceous raw material and calcareous raw material activity, just eakleite can be fully formed.But improving its activity is be difficult in production control accomplish.Adopt its formed body of the present invention higher with density strength, thermal conductivity factor is also little, heat resisting temperature is also high, this is because eakleite crystal when other conditions are identical, its temperature is higher, pressure is larger, its crystal development is larger, even if because some are siliceous, calcareous raw material poor activity a bit can form hard silico-calcium crystal.Instant invention overcomes the impact of siliceous raw material and calcareous raw material poor activity, can fully form eakleite slurry under above synthesis condition.The formed body obtained by this process, homogeneous (because slurry drench water channel when shaping is unimpeded), higher with proportion intensity.Its rupture strength can reach 0.5-1.4MPa, and formed body also fullys meet the heat resisting temperature 1050 DEG C of eakleite;
2) before one-tenth base, add inorganic glue or soak after one-tenth base drying and add inorganic glue, make formed body intensity and flexibility higher, workability is better, little by loss of strength after high temperature, and has noninflammability.Change and add organic gel before making the present invention, fire protecting performance declines, and the shortcoming that after high temperature, intensity declines significantly improves intensity and the flexibility of sheet forming simultaneously.
3) waterproof method of traditional eakleite sheet material is: be coated with waterproofing agent on surface, be unfavorable, only have complete hydrophobic to be only reliably as the method is used in external wall fireproof heat insulating.The present invention accomplishes integral hydrophobic, overcomes the shortcoming that brushing only has surface hydrophobic.
The present invention makes the complete hydrophobic of hard eakleite formed body, its production technology removes water unnecessary in slurry before the forming, add by a certain percentage can with the waterproofing agent of slurry reaction, make it to form interface cohesion, reshaping is dried and obtains formed body, or the sheet material after shaping and drying is soaked in makes it interface in reaction shape waterproofing agent and fully cover, reach the effect of complete waterproof.
The present invention produces high-strength, lightweight, integral hydrophobic, fire resistant warming plate, for build exterior-wall heat insulation fire prevention, the fireproof heat insulating of steel construction, light thermal-insulation fire resistant door core, the fireproof heat insulating of building ventilation pipeline and the insulated fire of cable trough.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment one
A preparation method for high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, comprises the following steps:
1) after siliceous raw material being mixed by Ca/Si ratio (mol ratio) 0.9 with calcareous raw material, inject dynamic response still, with 250 DEG C of superheated steams, steam pressure carries out synthesis 3 hours at 2.0Mpa, obtain eakleite slurry, add fortifying fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, adds the inorganic glue (weight ratio by slurry and inorganic glue) of 0.1%;
3) in step 2) add in the eakleite slurry that obtains 0.1% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) eakleite for preparing slurry through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Further improvement of the present invention is: in described step 1) add fortifying fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the waterglass waterproofing agent of organosilicon mixture giving and first preparing, soak time 10 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Embodiment two
A preparation method for high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, comprises the following steps:
1) after siliceous raw material being mixed by Ca/Si ratio (mol ratio) 1.1 with calcareous raw material, inject dynamic response still, with 400 DEG C of superheated steams, steam pressure carries out synthesis 8 hours at 2.7MPa, obtain eakleite slurry, add fortifying fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, adds the inorganic glue (weight ratio by slurry and inorganic glue) of 8%;
3) in step 2) add in the eakleite slurry that obtains 8% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Further improvement of the present invention is: in described step 1) add fortifying fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the Ludox waterproofing agent of organosilicon mixture giving and first preparing, soak time 240 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Embodiment three
A preparation method for high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, comprises the following steps:
1), after being mixed by Ca/Si ratio (mol ratio) 1.0 with calcareous raw material by siliceous raw material, inject dynamic response still, with 320 DEG C of superheated steams, steam pressure carries out synthesis 5 hours at 2.4Mpa, obtains eakleite slurry, adds fortifying fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, adds the inorganic glue (weight ratio by slurry and inorganic glue) of 5%;
3) in step 2) add in the eakleite slurry that obtains 6% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Further improvement of the present invention is: in described step 1) add fortifying fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the inorganic glue waterproofing agent of organosilicon mixture giving and first preparing, soak time 120 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
Adopt the present invention and obtain sheet material desired value, see table 1 table 1
Existing national regulations index, see table 2 table 2
By comparing of above table 1 and table 2 data, illustrate that the present invention is to improving the bending and compressive strength flexibility of sheet material and processability is state-of-the-art technology.
Claims (5)
1. a preparation method for high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED, is characterized in that, comprise the following steps:
1) by siliceous raw material and calcareous raw material by Ca/Si mol ratio be 0.9 ~ 1.1 mix after, inject dynamic response still, with 250 DEG C ~ 400 DEG C superheated steams, steam pressure carries out synthesis 3 ~ 8 hours at 2.0Mpa ~ 2.7MPa, obtain eakleite slurry, add fortifying fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, and adding by the weight ratio of slurry and inorganic glue is the inorganic glue of 0.1 ~ 8%;
3) in step 2) add in the eakleite slurry that obtains 0.1 ~ 8% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
2. the preparation method of a kind of high-strength light integral hydrophobic hard rankinite insulation PLASTIC LAMINATED according to claim 1, it is characterized in that, in described step 1) add fortifying fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the inorganic glue waterproofing agent of organosilicon mixture prepared in advance, soak time 1 minute ~ 240 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite 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, comprise the following steps:
1) by siliceous raw material and calcareous raw material by Ca/Si mol ratio be 0.9 mix after, inject dynamic response still, with 250 DEG C of superheated steams, steam pressure carries out synthesis 3 hours at 2.0Mpa, obtains eakleite slurry, adds glass fibre;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, and adding by the weight ratio of slurry and inorganic glue is the inorganic glue of 0.1%;
3) in step 2) add in the eakleite slurry that obtains 0.1% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material;
Be improved to further: in described step 1) add glass fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the waterglass waterproofing agent of organosilicon mixture prepared in advance, soak time 10 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite 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, comprise the following steps:
1) by siliceous raw material and calcareous raw material by Ca/Si mol ratio be 1.1 mix after, inject dynamic response still, with 400 DEG C of superheated steams, steam pressure carries out synthesis 8 hours at 2.7MPa, obtains eakleite slurry, adds cotton fiber;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, and adding by the weight ratio of slurry and inorganic glue is the inorganic glue of 8%;
3) in step 2) add in the eakleite slurry that obtains 8% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material;
Be improved to further: in described step 1) add cotton fiber and glass fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the Ludox waterproofing agent of organosilicon mixture prepared in advance, soak time 240 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite 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, comprise the following steps:
1) by siliceous raw material and calcareous raw material by Ca/Si mol ratio be 1.0 mix after, inject dynamic response still, with 320 DEG C of superheated steams, steam pressure carries out synthesis 5 hours at 2.4Mpa, obtains eakleite slurry, adds paper fiber;
2) by step 1) the eakleite slurry that obtains removes unnecessary water, and adding by the weight ratio of slurry and inorganic glue is the inorganic glue of 5%;
3) in step 2) add in the eakleite slurry that obtains 6% response type waterproofing agent of organosilicon, make it to form interface cohesion with slurry;
4) by above-mentioned steps 3) the eakleite slurry for preparing through compression molding, after drying, obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material;
Be improved to further: in described step 1) add paper fiber and glass fibre in the eakleite slurry that obtains after, directly carry out compression molding, dry again, goods after oven dry are soaked in the waterglass waterproofing agent of organosilicon mixture prepared in advance, soak time 120 minutes, dry again, just obtain that uniform in material, intensity are high, lightweight complete hydrophobic type eakleite sheet material.
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| 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 |
| CN104743977B (en) * | 2015-03-12 | 2016-01-13 | 江苏科技大学 | A kind of fireproof heat insulating material for boats and ships bulkhead and its preparation method and application |
| 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 |
| CN117510175A (en) * | 2023-11-07 | 2024-02-06 | 上海荣势环保科技有限公司 | Novel heat insulation core material of passive fireproof system |
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