CN104099058A - Silicone sealant for thermal-insulation integrated plate and preparation method thereof - Google Patents
Silicone sealant for thermal-insulation integrated plate and preparation method thereof Download PDFInfo
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- CN104099058A CN104099058A CN201310114833.6A CN201310114833A CN104099058A CN 104099058 A CN104099058 A CN 104099058A CN 201310114833 A CN201310114833 A CN 201310114833A CN 104099058 A CN104099058 A CN 104099058A
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Abstract
The invention relates to a silicone sealant for a thermal-insulation integrated plate and a preparation method thereof. The preparation method comprises the following steps of 1, adding 100 parts by weight of hydroxyl-terminated polydimethylsiloxane, 1-8 parts by weight of hydrophobic silica and 40-100 parts by weight of hydrophobic calcium carbonate into a mixer, carrying out blending dehydration at a temperature of 110-140 DEG C at a vacuum degree of 0.06-0.1MPa for 30-360min, carrying out cooling, and carrying out re-grinding dispersion by a three-roller machine to obtain a base material, and 2, orderly adding 5-10 parts by weight of a cross-linking agent, 0.1-1 part by weight of a catalyst, 0.5-3 parts by weight of a coupling agent and 5-15 parts by weight of methyl silicone oil into a high-speed dispersion machine and mixing the materials and the base material at a room temperature at a vacuum degree of 0.06-0.1MPa at a rotation rate of 600rpm for 30-120min to obtain the silicone sealant. The hydrophobic filling material is used, through use of hydrophobicity of the methyl silicone oil and the compatibility of the main resin, the filling material and the main resin can be fully and mutually dissolved so that excellent mechanical properties and good water resistance are obtained.
Description
Technical field
The present invention relates to silicone sealant for integrated plate for heat insulation and preparation method thereof.
Background technology
Silicone weather resistant seal gum refers to the silicone sealant for joint seal between building curtain wall plate, it is with the difference of general silicone sealant: after the sulfuration of silicone weather resistant seal gum, have the weathering resistance of good anti-uv-ray, displacement capacity, elastic recovery capability and good cohesiveness, water-fast cohesiveness, brilliance etc., silicone weather resistant seal gum has become the sealing material of building curtain wall first-selection for this reason.
But along with the development of curtain wall industry, the material of curtain wall starts to diversified future development, as integrated plate for heat insulation.Integrated plate for heat insulation is by the organic composition of three layer function mechanisms: finish coat (being also ornament layer), fire prevention carrier layer, fireproof thermal-insulation layer.Surface decoration layer can be selected fluorocarbon coating, polyester, emulsion paint etc., and rich color kind more than 2800, can make multiple simulated decorative effect.Carrier layer has the materials such as inorganic clad plate, aluminium-plastic panel, aluminium sheet; Lagging material can be selected the materials such as rock wool, phenolic aldehyde, inorganic heat insulation mortar.Integrated plate for heat insulation is widely used in the fields such as exterior wall, indoor, subway, tunnel, laboratory table top, hospital's partition, furniture.
At present, for the silicone sealant of integrated plate for heat insulation, be subject to for a long time the erosion of rainwater and the sun, need to there is good weathering resistance.In prior art, in order to reduce costs, using calcium carbonate as filler, use stearic acid to carry out modification to calcium carbonate, to increase the consistency between filler and silicone resin main body simultaneously.But be used for silicone sealant with stearic acid modified calcium carbonate, although silicone sealant has strengthened mechanical property, also to a certain degree promoted adhesive property, but the water resistance of silicone sealant is very poor, under the erosion of water, the performance of silicone sealant declines rapidly, cannot realize the object of bonding, this phenomenon is especially outstanding in integrated plate for heat insulation.
Summary of the invention
The object of this invention is to provide the silicone sealant for integrated plate for heat insulation, there is the silicone sealant can also after soaked with good adhesive property.
For achieving the above object, a kind of silicone sealant for integrated plate for heat insulation, in weight part, comprises following component
Hydroxyl-terminated injecting two methyl siloxane 100
Water drain silica 1-8
Hydrophobic calcium carbonate 40-100
Linking agent 5-10
Coupling agent 0.5-3
Catalyzer 0.1-1
Methyl-silicone oil 5-15
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 30000mPas-70000mPas.
Described linking agent is four Diacetylmonoxime base silanes.
Described coupling agent is aminopropyl trimethoxysilane.
Described catalyzer is the one in dibutyl tin dilaurate, sad lithium, zinc octoate or sad strontium.
Described hydrophobic calcium carbonate is methyl-silicone oil modified calcium carbonate.
Described water drain silica is methyl-silicone oil improved silica.
Silicone sealant for integrated plate for heat insulation can also comprise promotor tripolyphosphate or four polyphosphoric acids or octyl group tripolyphosphate, promotor can be also above-mentioned three kinds of sour ester classes, it can also be their mixture, the consumption of promotor, taking hydroxyl-terminated injecting two methyl siloxane 100 weight parts as benchmark, between 0.01-10 weight part, acid promotor can also be served as the micromolecular absorption agent of alcohols, makes the micromolecular travelling speed of alcohols slack-off.Promotor contributes to improve the efficiency of catalyzer, improves the degree of crosslinking of film forming, to a certain degree can improve the water resistance of seal gum.In the time manufacturing seal gum, also can effectively remove alcohol micromolecular or the free hydroxyl group in seal gum.
The modification of filler:
In reactor, the methyl-silicone oil of 15 weight parts, the calcium carbonate of 100 parts or stearic acid modified calcium carbonate powder or silicon-dioxide are added to the toluene of 1000 weight parts, then disperse 30 minutes, centrifugation, adopt aqueous ethanolic solution washing 4 times, centrifugation, Air drying 10 hours in vacuum drying oven, hydrophobic calcium carbonate or water drain silica.
Be used for the preparation method of the silicone sealant of integrated plate for heat insulation:
1) 100 weight part hydroxyl-terminated injecting two methyl siloxanes, 1-8 weight part water drain silica, the hydrophobic calcium carbonate of 40-100 weight part are joined in kneader, and mixing dehydration 30～360 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) methyl-silicone oil of 5-10 weight part linking agent, 0.1-1 weight part catalyzer, 0.01-10 weight part promotor, 0.5-3 weight part coupling agent, 5-15 weight part is joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 30～120 minutes.
Beneficial effect of the present invention:
The present invention, by using dewatering filling, utilizes the hydrophobicity of methyl-silicone oil and the consistency with matrix resin, makes between filler and matrix resin fully compatiblely, when obtaining excellent mechanical property, also has good water tolerance.
Embodiment
Embodiment 1
For a silicone sealant for integrated plate for heat insulation, in weight part, comprise following component:
Hydroxyl-terminated injecting two methyl siloxane 100
Methyl-silicone oil improved silica 4
Methyl-silicone oil modified calcium carbonate 40
Four Diacetylmonoxime base silanes 10
Aminopropyl trimethoxysilane 3
Sad strontium 1
Methyl-silicone oil 5
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 70000mPas.
1) hydroxyl-terminated injecting two methyl siloxane, water drain silica, hydrophobic calcium carbonate are joined in kneader, and mixing dehydration 360 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) linking agent, catalyzer, coupling agent, methyl-silicone oil are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 120 minutes.
Embodiment 2
For a silicone sealant for integrated plate for heat insulation, in weight part, comprise following component:
Hydroxyl-terminated injecting two methyl siloxane 100
Methyl-silicone oil improved silica 8
Methyl-silicone oil modified calcium carbonate 100
Four Diacetylmonoxime base silanes 5
Aminopropyl trimethoxysilane 2
Zinc octoate 0.5
Methyl-silicone oil 10
Tripolyphosphate 1
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 60000mPas.
1) hydroxyl-terminated injecting two methyl siloxane, water drain silica, hydrophobic calcium carbonate are joined in kneader, and mixing dehydration 120 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) linking agent, catalyzer, coupling agent, methyl-silicone oil, promotor are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 90 minutes.
Embodiment 3
For a silicone sealant for integrated plate for heat insulation, in weight part, comprise following component:
Hydroxyl-terminated injecting two methyl siloxane 100
Methyl-silicone oil improved silica 5
Methyl-silicone oil modified calcium carbonate 80
Four Diacetylmonoxime base silanes 8
Aminopropyl trimethoxysilane 1
Sad lithium 1
Methyl-silicone oil 15
Tripolyphosphate 0.05
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 4000mPas.
1) hydroxyl-terminated injecting two methyl siloxane, water drain silica, hydrophobic calcium carbonate are joined in kneader, and mixing dehydration 30 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) linking agent, catalyzer, coupling agent, methyl-silicone oil, promotor are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 120 minutes.
Embodiment 4
For a silicone sealant for integrated plate for heat insulation, in weight part, comprise following component:
Hydroxyl-terminated injecting two methyl siloxane 100
Methyl-silicone oil improved silica 1
Methyl-silicone oil modified calcium carbonate 60
Four Diacetylmonoxime base silanes 10
Aminopropyl trimethoxysilane 0.5
Sad strontium 0.1
Methyl-silicone oil 15
Tripolyphosphate 6
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 30000mPas.
1) hydroxyl-terminated injecting two methyl siloxane, water drain silica, hydrophobic calcium carbonate are joined in kneader, and mixing dehydration 360 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) linking agent, catalyzer, coupling agent, methyl-silicone oil, promotor are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 30 minutes.
Comparative example
For a silicone sealant for integrated plate for heat insulation, in weight part, comprise following component:
Hydroxyl-terminated injecting two methyl siloxane 100
Silica 1
Calcium carbonate 60
Four Diacetylmonoxime base silanes 10
Aminopropyl trimethoxysilane 0.5
Dibutyl tin dilaurate 0.1
Methyl-silicone oil 15
The viscosity of described hydroxyl-terminated injecting two methyl siloxane is 30000mPas.
1) hydroxyl-terminated injecting two methyl siloxane, silicon-dioxide, calcium carbonate are joined in kneader, and mixing dehydration 360 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) linking agent, catalyzer, coupling agent, methyl-silicone oil are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 30 minutes.
Also find by contrast, promotor can effectively make the curing speed of seal gum accelerate simultaneously.
Embodiment of the present invention silicone sealant, for integrated plate for heat insulation, detects according to GBl6776, and its performance index are as shown in the table:
Claims (9)
1. for the silicone sealant of integrated plate for heat insulation, in weight part, it is characterized in that, comprise following component
Hydroxyl-terminated injecting two methyl siloxane 100
Water drain silica 1-8
Hydrophobic calcium carbonate 40-100
Linking agent 5-10
Coupling agent 0.5-3
Catalyzer 0.1-1
Methyl-silicone oil 5-15.
2. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, the viscosity of described hydroxyl-terminated injecting two methyl siloxane is 30000mPas-70000mPas.
3. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described linking agent is four Diacetylmonoxime base silanes.
4. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described coupling agent is aminopropyl trimethoxysilane.
5. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described catalyzer is dibutyl tin dilaurate.
6. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described hydrophobic calcium carbonate is methyl-silicone oil modified calcium carbonate.
7. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described water drain silica is methyl-silicone oil improved silica.
8. the silicone sealant for integrated plate for heat insulation according to claim 1, is characterized in that, described silicone sealant also comprises tripolyphosphate or four polyphosphoric acids or the octyl group tripolyphosphate of 0.01-10 weight part.
9. according to the silicone sealant for integrated plate for heat insulation described in claim 1 or 8, it is characterized in that, for the preparation method of the silicone sealant of integrated plate for heat insulation be:
1) 100 weight part hydroxyl-terminated injecting two methyl siloxanes, 1-8 weight part water drain silica, the hydrophobic calcium carbonate of 40-100 weight part are joined in kneader, and mixing dehydration 30～360 minutes under 110～140 DEG C, vacuum tightness 0.06～0.1MPa, cooling; By three-roller grinding distribution again, obtain base-material;
2) 5-10 weight part linking agent, 0.1-1 weight part catalyzer, 0.5-3 weight part coupling agent, the methyl-silicone oil of 5-15 weight part or the tripolyphosphate of 0.01-10 weight part or four polyphosphoric acids or octyl group tripolyphosphate are joined in powerful dispersion machine successively, mix with above-mentioned base-material, under room temperature, vacuum tightness is 0.06～0.1MPa, and rotating speed 600rpm mixing obtains silicone sealant for 30～120 minutes.
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| CN201310114833.6A CN104099058B (en) | 2013-04-03 | 2013-04-03 | For the silicone sealant and preparation method thereof of integrated plate for heat insulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111925748A (en) * | 2020-08-21 | 2020-11-13 | 成都硅宝科技股份有限公司 | Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate |
| CN113493674A (en) * | 2020-03-19 | 2021-10-12 | 佛山市顺德区天采有机硅有限公司 | Strong structural adhesive and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113493674A (en) * | 2020-03-19 | 2021-10-12 | 佛山市顺德区天采有机硅有限公司 | Strong structural adhesive and preparation method thereof |
| CN111925748A (en) * | 2020-08-21 | 2020-11-13 | 成都硅宝科技股份有限公司 | Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate |
| CN111925748B (en) * | 2020-08-21 | 2021-10-26 | 成都硅宝科技股份有限公司 | Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate |
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Effective date of registration: 20180815 Address after: 224100 Jiangsu province Dafeng District Bai Ju Industrial Park Patentee after: Jiangsu Hua Si new Mstar Technology Ltd Address before: 201706 No. 1358, Zhao heavy road, Qingpu District, Shanghai Patentee before: SHANGHAI HUAGUI SPECIAL CHEMICALS CO., LTD. |
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Denomination of invention: Silicone sealant for thermal-insulation integrated plate and preparation method thereof Effective date of registration: 20200703 Granted publication date: 20160120 Pledgee: Yancheng SME Financing Guarantee Co.,Ltd. Pledgor: Jiangsu Hua Si new Mstar Technology Ltd. Registration number: Y2020980003791 |
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Date of cancellation: 20210624 Granted publication date: 20160120 Pledgee: Yancheng SME Financing Guarantee Co.,Ltd. Pledgor: Jiangsu Hua Si new Mstar Technology Ltd. Registration number: Y2020980003791 |
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