CN103274660B - Light building composite material and preparation method thereof - Google Patents
Light building composite material and preparation method thereof Download PDFInfo
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- CN103274660B CN103274660B CN201310235512.1A CN201310235512A CN103274660B CN 103274660 B CN103274660 B CN 103274660B CN 201310235512 A CN201310235512 A CN 201310235512A CN 103274660 B CN103274660 B CN 103274660B
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Abstract
The invention discloses a light building composite material which comprises the components in percentage by mass as follows: 20-35% of plaster, 20-35% of water-dilutable amino resin, 20-50% of water-dilutable polyester resin, 1-5% of glass fibers, 1-3% of nanosilicon dioxide, 1-9% of sodium bicarbonate, 1-5% of KH570 and 1-5% of oleic acid. The invention further discloses a preparation method of the light building composite material. The light building composite material is small in product unit weight, heat conductivity coefficient and density and high in strength. Specific indexes are as follows: the density is 250-358 kg/m<3>, the thermal conductivity is 0.030-0.080 w/m DEG C, and the compressive strength is 10-15 MPa.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of light-weight building matrix material and preparation method thereof.
Background technology
Gypsum is a class material of meeting water hardening, and in process of setting, because the restriction of material itself, common intensity is less, more crisp.Gypsum comprises sulfuric acid gypsum, phosphoric acid gypsum, citric acid gypsum, fluorgypsum, chromium gypsum, boron gypsum and titanium gypsum.Wherein, quite a few material is had to be industrial waste, the often abandoned of these materials, and be not fully utilized and exploitation, even if the material be utilized, mostly use as a kind of plasterboard, effect of heat insulation is poor, and be unfavorable for energy-conservation, relative density is large, intensity is little, can not use as a kind of light building material; Meanwhile, due to the problem in source, there is certain difference in its character, thus the unstable properties of product.The gypsum material of greater part is the rubbish of Industrial products, and accumulation is got up, and pollutes environment, reasonably uses the exploitation of these materials to environmental protection and refuse to have important value.
In these industrial raw material processes of use, it is found that, these material industries source is wide, performance has different, in the process utilized, performance is because provenance difference has certain fluctuation, and single employing gypsum uses as material of construction and also can use and be restricted because material difference, and how these being considered to industrial waste materials, to become that one do not affect by raw material be urgent problem.Therefore, utilize gypsum to meet water hardening, prepare a kind of heat insulation material.
In recent years, China's building field develop rapidly, also more and more higher to the requirement of material of construction, especially for some Code in Hazardous Special Locations, the material of construction of the ceilings such as such as drome, large-scale exhibition center, subway, subway and storage room, it not only requires to have certain intensity, and requires leakproof, heat insulating, fire prevention, light weight.At present, the resin-based materials of use, though density is little, proportion is little, lightweight, leakproof, but easily presence of fire, and poisonous organism can be volatilized along with the rising of temperature, the roof not therefore being suitable for large-scale public place uses.And the material that roof in traditional material of construction and materials for wall are mainly made up of cement, brick and timber etc., but because density is high, than great, intensity difference, not humidity and corrosion, so be not also suitable for the roof of large-scale public place.Important in a kind of New Building Materials is light building material.Light building material can be subdivided into plasterboard, plastering and similar light building material.Gypsum lath for main material with gypsum, adds Portland cement, pearlstone and the extrusion molding of middle alkali plastic-coated grid cloth and forms through natural curing.Gypsum is a kind of both ancient and modern material, and purposes is fairly widespread, has the characteristic of fire prevention, ventilative and moisture absorption.Gypsum base building materials have obvious energy-saving and environmental protection and are conducive to healthy characteristics of the times, and gypsum-based material is light, ventilative, fire line is good, beautiful decoration, and has certain temperature adjustment, damping effect, is the good selection of upholstery.Light building material, by the future development to environmental protection, energy-conservation, green, compound, blending technology, multifunction, is constantly met the need of market.The improving constantly and improving of light building material quality and function, the usage quantity of following light building material will significantly promote.
Summary of the invention
Goal of the invention: the object of the invention is to for gypsum material wide material sources, the problem of unstable properties, providing a kind of is that having of raw material is heat insulation, the light-weight building matrix material of high-intensity performance with gypsum, not by the impact in gypsum raw material source.
Another object of the present invention is to the preparation method that this light-weight building matrix material is provided.
Technical scheme: light-weight building matrix material of the present invention, is the material by organic materials and inorganic materials compound, comprises following component:
Gypsum 20 ~ 35%;
Water-compatible amino resin 20 ~ 35%;
Aqueous polyester resin 20 ~ 50%;
Glass fibre 1-5%;
Nano silicon 1-3%;
Sodium bicarbonate 1 ~ 9%;
KH570 1～5%；
Oleic acid 1 ~ 5%;
Below all by percentage to the quality.
In the present invention, described gypsum can comprise: any one or a few the mixture in sulfuric acid gypsum, phosphoric acid gypsum, citric acid gypsum, fluorgypsum, chromium gypsum, boron gypsum, titanium gypsum, the present invention preferably uses sulfuric acid gypsum.Component of the present invention is compared with conventional gelatinous material, adds aqueous high molecular material, and has introduced linking agent, this feature cause the shock resistance of material and heat retaining property better.
Described water-compatible amino resin is that being the product by amine or acid amides and formaldehyde reaction gained, can be methyl-etherified aminoresin, butylated amino resin or their mixture, preferred methyl-etherified aminoresin containing amino in molecular structure.In the present invention water-compatible amino resin and aqueous polyester resin with the use of, be use as the linking agent of aqueous polyester resin.
Described aqueous polyester resin refers to a kind of ion type copolyester introducing ionic structure unit in molecular chain, in the structure except containing except hydroxyl, containing carboxyl and polyethylene oxide block hydrophilic radical or segment, general selection water-based hydroxyl group containing polyester resin, its reason is that curing speed, the effect coordinated with gypsum gelatinous material are even more ideal.
Described glass fibre is the fiber of 1 ~ 2 micron.The present invention also can select trevira, PP fiber etc., preferred glass fibers in the present invention.
The preparation method of light-weight building matrix material of the present invention, comprises the steps:
(1) join in gypsum by water-compatible amino resin and aqueous polyester resin, mechanical stirring is to homogeneous state;
(2) be 25:1 in mass ratio by nano silicon and KH570, common distribution is in toluene, and wherein the mass ratio of silicon-dioxide, KH570 total amount and toluene is 1:1, ultrasonic disperse 15 minutes, reflux, reacts stopped reaction after 1 hour and cools, centrifugal; Precipitation absolute ethanol washing several, dry, obtain modified Nano SiO
2;
(3) the modified Nano SiO will obtained in glass fibre and step (2)
2joining in the mixture after step (1) process, is that 8000r/mi carries out high-speed stirring, supersound process with rotating speed;
(4) added by oleic acid in the mixture after step (3) process, mechanical stirring is to homogeneous state;
(5) added by sodium bicarbonate in the mixture after step (4) process, mechanical stirring is to homogeneous state;
(6) mixture step (5) obtained loads in mould, and vacuumize de-bubble, jolt ramming is shaping, ambient cure 10 minutes, and the demoulding is finally packaged to be described light-weight building matrix material.
Compared with prior art, its beneficial effect is: after tested in the present invention, and product unit weight of the present invention is little, and thermal conductivity is little, and density is little, and intensity is high, and specific targets are as follows: density is 250-358kg/m
3, thermal conductivity is 0.030-0.080w/m DEG C, ultimate compression strength 10-15MPa.
Embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
embodiment 1:light-weight building matrix material of the present invention, comprises following component (mass percent):
Sulfuric acid gypsum 20%;
Water-compatible amino resin 30%;
Aqueous polyester resin 26%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 9%;
KH570 2%；
Oleic acid 5%.
The preparation method of light-weight building matrix material of the present invention, comprises the steps:
(1) join in gypsum by water-compatible amino resin and aqueous polyester resin, mechanical stirring is to homogeneous state;
(2) be 25:1 by nano silicon and KH570 mass ratio, common distribution is in toluene, and wherein the mass ratio of silicon-dioxide, KH570 total amount and toluene is 1:1, ultrasonic disperse 15 minutes, reflux, reacts stopped reaction after 1 hour and cools, centrifugal; Precipitation absolute ethanol washing several, dry, obtain modified Nano SiO
2;
(3) the modified Nano SiO will obtained in glass fibre and step (2)
2joining in the mixture after step (1) process, is that 8000r/mi carries out high-speed stirring, supersound process with rotating speed;
(4) added by oleic acid in the mixture after step (3) process, mechanical stirring is to homogeneous state;
(5) added by sodium bicarbonate in the mixture after step (4) process, mechanical stirring is to homogeneous state;
(6) mixture step (5) obtained loads in mould, and vacuumize de-bubble, jolt ramming is shaping, ambient cure 10 minutes, and the demoulding is finally packaged to be described light-weight building matrix material.
After testing, the product density that the present embodiment is obtained is 250kg/cm
3, thermal conductivity is 0.030w/m DEG C, and ultimate compression strength is 10MPa.
embodiment 2:light-weight building matrix material of the present invention, comprises following component (mass percent):
Phosphoric acid gypsum 35%;
Water-compatible amino resin 22%;
Aqueous polyester resin 20%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 8%;
KH570 2%；
Oleic acid 5%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 358kg/cm
3, thermal conductivity is 0.080w/m DEG C, and ultimate compression strength is 15MPa.
embodiment 3:light-weight building matrix material of the present invention, comprises following component (mass percent):
Fluorgypsum 30%;
Water-compatible amino resin 27%;
Aqueous polyester resin 25%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 3%;
KH570 2%；
Oleic acid 5%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 332kg/cm
3, thermal conductivity is 0.059w/m DEG C, and ultimate compression strength is 13.4MPa.
embodiment 4:light-weight building matrix material of the present invention, comprises following component (mass percent):
Boron gypsum 25%;
Water-compatible amino resin 20%;
Aqueous polyester resin 39%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 1%;
KH570 2%；
Oleic acid 5%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 276kg/cm
3, thermal conductivity is 0.047w/m DEG C, and ultimate compression strength is 12.1MPa.
embodiment 5:light-weight building matrix material of the present invention, comprises following component (mass percent):
Citric acid gypsum 22%;
Water-compatible amino resin 29%;
Aqueous polyester resin 25%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 9%;
KH570 2%；
Oleic acid 5%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 282kg/cm
3, thermal conductivity is 0.0490w/m DEG C, and ultimate compression strength is 12.8MPa.
embodiment 6:light-weight building matrix material of the present invention, comprises following component (mass percent):
Fluorgypsum 20%;
Water-compatible amino resin 35%;
Aqueous polyester resin 25%;
Glass fibre 5%;
Nano silicon 3%;
Sodium bicarbonate 5%;
KH570 2%；
Oleic acid 5%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 338kg/cm
3, thermal conductivity is 0.061w/m DEG C, and ultimate compression strength is 13.3MPa.
embodiment 7:light-weight building matrix material of the present invention, comprises following component (mass percent):
Titanium gypsum 20%;
Water-compatible amino resin 20%;
Aqueous polyester resin 50%;
Glass fibre 5%;
Nano silicon 2%;
Sodium bicarbonate 1%;
KH570 1%；
Oleic acid 1%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 90kg/cm
3, thermal conductivity is 0.021w/m DEG C, and ultimate compression strength is 15.3MPa.
embodiment 8:light-weight building matrix material of the present invention, comprises following component (mass percent):
Chromium gypsum 20%;
Water-compatible amino resin 20%;
Aqueous polyester resin 50%;
Glass fibre 5%;
Nano silicon 2%;
Sodium bicarbonate 5%;
KH570 1%；
Oleic acid 1%.
Preparation method is with embodiment 1.
After testing, the product density that the present embodiment is obtained is 80kg/cm
3, thermal conductivity is 0.018w/m DEG C, and ultimate compression strength is 13.3MPa.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (7)
1. a light-weight building matrix material, is characterized in that comprising following component:
Below all by percentage to the quality
Wherein, described water-compatible amino resin is containing amino in molecular structure, is the product by amine or acid amides and formaldehyde reaction gained; Described aqueous polyester resin refers to a kind of ion type copolyester introducing ionic structure unit in molecular chain, in the structure except containing except hydroxyl, containing carboxyl and polyethylene oxide block hydrophilic radical or segment.
2. light-weight building matrix material according to claim 1, is characterized in that: described gypsum comprises: any one or a few in sulfuric acid gypsum, phosphoric acid gypsum, citric acid gypsum, fluorgypsum, chromium gypsum, boron gypsum or titanium gypsum.
3. light-weight building matrix material according to claim 1, is characterized in that: described gypsum is sulfuric acid gypsum.
4. light-weight building matrix material according to claim 1, is characterized in that: described glass fibre is the fiber of 1 ~ 2 micron.
5. light-weight building matrix material according to claim 1, is characterized in that: described water-compatible amino resin is methyl-etherified aminoresin.
6. light-weight building matrix material according to claim 1, is characterized in that: described aqueous polyester resin is water-based hydroxyl group containing polyester resin.
7. the preparation method of light-weight building matrix material according to claim 1, is characterized in that comprising the steps:
(1) join in gypsum by water-compatible amino resin and aqueous polyester resin, mechanical stirring is to homogeneous state;
(2) by nano silicon and KH570 according to mass ratio be 25:1 common distribution in toluene, wherein the mass ratio of nano silicon, KH570 total amount and toluene is 1:1; Ultrasonic disperse 15 minutes, reflux, reacts 1 hour stopped reaction and cools, centrifugal; Precipitation absolute ethanol washing several, dry, obtain modified manometer silicon dioxide;
(3) being joined by the modified manometer silicon dioxide obtained in glass fibre and step (2) in the mixture after step (1) process, is that 8000r/min carries out high-speed stirring, supersound process with rotating speed;
(4) added by oleic acid in the mixture after step (3) process, mechanical stirring is to homogeneous state;
(5) added by sodium bicarbonate in the mixture after step (4) process, mechanical stirring is to homogeneous state;
(6) mixture step (5) obtained loads in mould, and vacuumize de-bubble, jolt ramming is shaping, ambient cure 10 minutes, and the demoulding is finally packaged to be described light-weight building matrix material.
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| CN104230288B (en) * | 2014-08-29 | 2016-08-03 | 安徽徽明建设集团有限公司 | A kind of wall heat insulation material based on modified boron Gypsum Fibrosum and preparation method thereof |
| CN105198348A (en) * | 2015-10-14 | 2015-12-30 | 苏州法斯特信息科技有限公司 | Fiber-reinforced light-weight building composite material and preparation process |
| CN114044661B (en) * | 2021-12-03 | 2023-06-20 | 贵州国锐鑫节能科技有限公司 | Solar heat-absorbing and heat-releasing phosphogypsum insulation board and preparation method thereof |
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| CN1817976A (en) * | 2005-02-08 | 2006-08-16 | 庆东塞拉泰克有限公司 | Coating composition for fire retardant and sound absorption |
| CN102127275A (en) * | 2011-03-16 | 2011-07-20 | 上海元琦能源科技发展有限公司 | Composition for flame-retardant polyvinyl chloride (PVC) plastic foam board, product prepared from same, and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817976A (en) * | 2005-02-08 | 2006-08-16 | 庆东塞拉泰克有限公司 | Coating composition for fire retardant and sound absorption |
| CN102127275A (en) * | 2011-03-16 | 2011-07-20 | 上海元琦能源科技发展有限公司 | Composition for flame-retardant polyvinyl chloride (PVC) plastic foam board, product prepared from same, and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 纳米改性SiO2填料对光固化涂料耐腐蚀性的影响;李照磊等;《涂料工业》;20091130;第39卷(第1期);第20-22页 * |
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Effective date of registration: 20181024 Address after: 213131 Changzhou Xinbei District, Jiangsu province. Patentee after: Changzhou new Mstar Technology Ltd Address before: No. 2, Mengxi Road, Zhenjiang, Jiangsu Province, Jiangsu Patentee before: Jiangsu University of Science and Technology |