CN105399383A - Lightweight antifreezing straw fiber thermal insulation wallboard and manufacturing method therefor - Google Patents
Lightweight antifreezing straw fiber thermal insulation wallboard and manufacturing method therefor Download PDFInfo
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- CN105399383A CN105399383A CN201510927894.3A CN201510927894A CN105399383A CN 105399383 A CN105399383 A CN 105399383A CN 201510927894 A CN201510927894 A CN 201510927894A CN 105399383 A CN105399383 A CN 105399383A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a lightweight antifreezing straw fiber thermal insulation wallboard and a manufacturing method therefor. On the one hand, straw fibers are subjected to high temperature steam pretreatment, then part of pectin is removed, acetic acid is added, acetylation treatment is carried out, free hydroxide radicals in cellulose are enclosed, the hydrophobic performance and the thermal stability of the material are raised, then a waterproof agent immersion method is employed for processing, the material water absorption is lowered, the alkali corrosion resistance of the material in a cement-based material is raised and the capability of resisting microorganisms from depolymerization is raised. On the other hand, wastes of fly ash, iron ore tailings, ceramic polishing residues and the like are modified, utilized, and blended with sulfonated ethylene propylene rubber, granulation is carried out, the intensity and the toughness of the product are raised, the product is not easy to fracture, the thermal insulation wallboard prepared according to the method is low in cost, the added modified straw fibers can absorb released energy when a cement-based material cracks, therefore extension of the crack in the cement-based material is stopped, namely, the toughness of the material is raised, the compression toughness index is raised, and the provided thermal insulation wallboard has advantages of antifreezing, ventilation and good warmth retention.
Description
Technical field
The present invention relates to building thermal insulation material technical field, particularly relate to freeze proof rice-straw fibre heat-insulation wall plate of a kind of lightweight and preparation method thereof.
Background technology
Current China exterior-wall heat insulation mainly adopts external wall outer insulation, compared with inside holding, is effectively reducing " heat bridge " of building structure, eliminates condensation, improve the comfort level of inhabitation while increasing the useful space of building.And outside wall heat preservation is not only applicable to newly-built Structural Engineering, be also applicable to old building transforming engineering, the scope of application is wider, and technology content is higher.Now use external-wall heat-insulation material EPS etc., its raw material is from oil, under the environment that petroleum products significantly appreciates, EPS/XPS must and then appreciate, cause lagging material price increase, in addition implement to force energy saving policy to building, lagging material EPS/XPS consumption increases, and existing production capacity cannot be met the need of market.Thus exploitation substitutes lagging material becomes inevitable, and China's vast Rural areas plant straw fibers rich content, for a long time because burning straw utilizes unreasonable also to the severe contamination that environment brings, thus develop vegetable fibre lagging material and just become inexorable trend.Vegetable fibre is used in heat-insulation wall plate, because of its open, loose construct, in body of wall, forms gassiness structure, there is heat insulation function, make body of wall have certain ventilation property simultaneously.Adding of it also makes wall quality greatly alleviate, and is only 10% of common brick.But also make it the disadvantage producing the moisture absorption and infiltration, and on the one hand because vegetable fibre can by microorganism depolymerization in Soaking environment, fibre tensile strength is declined, lixiviate of degrading in the alkaline environment of cement slurry on the other hand goes out a large amount of monose, oligose, lignin etc., serious delayed coagulation is caused to cement, therefore need existing vegetable fibre in addition water-repellent modified, improve the structure of wooden partition, when making it finished product, now sclerotin is continuous, the discontinuous structure of large portion pore, and then the soundness of guarantee body of wall, waterproof and ventilation property.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides freeze proof rice-straw fibre heat-insulation wall plate of a kind of lightweight and preparation method thereof.
The present invention is achieved by the following technical solutions:
The freeze proof rice-straw fibre heat-insulation wall plate of a kind of lightweight, is made up of the raw material of following weight part: ordinary Portland cement 15-17, adopting iron ore tailings 20-22, ceramic polished slag 25-27, flyash 22-24, light calcium carbonate 6-8, rice-straw fibre 35-37, dodecyl oxyethyl group sultaine 2-4, sulfonation ethylene-propylene rubber(EPR) 7-9, nanometer boron fibre 10-12, organosilicon crylic acid latex 12-14, nitrocalcite 1-2, water-resisting agent 40-43, acetic acid 45-47, described water-resisting agent is made up of following raw materials in part by weight: epoxy resin latex 25-27, vinyl acetate 18-20, isocyanic ester 26-28, CSA swelling agent grog 3-5, slag powders 4-6, dimethyl silicone oil 7-9, polyethylene wax 2-4, Repone K 0.2-0.4, sodium lignosulfonate 1.3-1.6, calcium stearate 0.9-1.2, gelatin emulsion 11-14, its preparation method is: by vinyl acetate, the dimethyl silicone oil ultrasonic disperse 20-30 minute that adds water adds sodium lignosulfonate, be warming up to 50-70 DEG C high-speed stirring 10-20 minute and be incubated 1-2 hour, add isocyanic ester, gelatin emulsion be warming up to 105-125 DEG C high-speed stirring 30-45 minute and be incubated 1-2 hour, be down to room temperature and regulate pH7-8, filter, finally add epoxy resin latex, CSA swelling agent grog, slag powders and other remaining components high-speed stirring 10-15 minute and get final product.
The making method of the freeze proof rice-straw fibre heat-insulation wall plate of described a kind of lightweight, comprises the following steps:
(1) rice-straw fibre steam pre-treatment 20-40 minute is crushed to particle diameter 4-6mm, put into retort to add acetic acid stirring and evenly mixing and leave standstill 3-5 hour, be heated to 100-130 DEG C of reaction 2-3 hour, filter and wash and dry to neutral, put into water-resisting agent again and flood 6-8 hour, dry obtained modified straw fiber;
(2) flyash, adopting iron ore tailings, ceramic polished slag are put into calcining furnace and at 800-850 DEG C, calcined 40-50 minute under nitrogen atmosphere, add nanometer boron fibre, organosilicon crylic acid latex grinding pulping, add sulfonation ethylene-propylene rubber(EPR) to drop in high-speed mixer with the blended 5-10min of the speed of 1000-1500r/min, send into granulation in tablets press, size controlling is at 3-5mm;
(3) ordinary Portland cement, step (2) reaction mass are put into mixing machine together and stirred maturation process 1-3 hour, add modified straw fiber and other remaining component stirring and evenly mixings, add water with water cement ratio 0.7 and stir into mixed slurry;
(4) finally above-mentioned obtained mixed slurry is put into mould, in 40-45 DEG C of solidification 20-30 minute, the briquet that solidification is taken out in the demoulding is placed in maintenance 25-30 days under natural condition, cuts and packs and get final product.
Advantage of the present invention is: the inventive method is simple to operation, pectin is divided on the one hand by removal unit after the pre-treatment of rice-straw fibre high-temperature steam, add acetic acid and carry out acetylize process, enclose hydroxyl free in Mierocrystalline cellulose, improve hydrophobic performance and the thermostability of material, adopt the process of water-resisting agent pickling process again, reduce material water-intake rate and improve its alkali attack in cement-based material and opposing microorganism to the ability of its depolymerization; Flyash, adopting iron ore tailings, the modification of ceramic polished slag the like waste are used by the present invention on the other hand, granulation blended with sulfonation ethylene-propylene rubber(EPR), improve intensity and the toughness of product, not easy fracture, heat-insulation wall plate cost obtained is in this way low, the energy of release when the modified straw Fibrillar absorbable cement matrix of interpolation ftractures, thus the expansion in crack in prevention cement matrix, namely increase the toughness of material, improve compressive Toughness Index, there is freeze proof, ventilative, that heat retention is good advantage.
Embodiment
The freeze proof rice-straw fibre heat-insulation wall plate of a kind of lightweight, is made up of the raw material of following weight part: ordinary Portland cement 15, adopting iron ore tailings 20, ceramic polished slag 25, flyash 22, light calcium carbonate 6, rice-straw fibre 35, dodecyl oxyethyl group sultaine 2, sulfonation ethylene-propylene rubber(EPR) 7, nanometer boron fibre 10, organosilicon crylic acid latex 12, nitrocalcite 1, water-resisting agent 40, acetic acid 45, described water-resisting agent is made up of following raw materials in part by weight: epoxy resin latex 25, vinyl acetate 18, isocyanic ester 26, CSA swelling agent grog 3, slag powders 4, dimethyl silicone oil 7, polyethylene wax 2, Repone K 0.2, sodium lignosulfonate 1.3, calcium stearate 0.9, gelatin emulsion 11, its preparation method is: by vinyl acetate, the dimethyl silicone oil ultrasonic disperse 20-30 minute that adds water adds sodium lignosulfonate, be warming up to 50-70 DEG C high-speed stirring 10-20 minute and be incubated 1-2 hour, add isocyanic ester, gelatin emulsion be warming up to 105-125 DEG C high-speed stirring 30-45 minute and be incubated 1-2 hour, be down to room temperature and regulate pH7-8, filter, finally add epoxy resin latex, CSA swelling agent grog, slag powders and other remaining components high-speed stirring 10-15 minute and get final product.
The making method of the freeze proof rice-straw fibre heat-insulation wall plate of described a kind of lightweight, comprises the following steps:
(1) rice-straw fibre steam pre-treatment 20-40 minute is crushed to particle diameter 4-6mm, put into retort to add acetic acid stirring and evenly mixing and leave standstill 3-5 hour, be heated to 100-130 DEG C of reaction 2-3 hour, filter and wash and dry to neutral, put into water-resisting agent again and flood 6-8 hour, dry obtained modified straw fiber;
(2) flyash, adopting iron ore tailings, ceramic polished slag are put into calcining furnace and at 800-850 DEG C, calcined 40-50 minute under nitrogen atmosphere, add nanometer boron fibre, organosilicon crylic acid latex grinding pulping, add sulfonation ethylene-propylene rubber(EPR) to drop in high-speed mixer with the blended 5-10min of the speed of 1000-1500r/min, send into granulation in tablets press, size controlling is at 3-5mm;
(3) ordinary Portland cement, step (2) reaction mass are put into mixing machine together and stirred maturation process 1-3 hour, add modified straw fiber and other remaining component stirring and evenly mixings, add water with water cement ratio 0.7 and stir into mixed slurry;
(4) finally above-mentioned obtained mixed slurry is put into mould, in 40-45 DEG C of solidification 20-30 minute, the briquet that solidification is taken out in the demoulding is placed in maintenance 25-30 days under natural condition, cuts and packs and get final product.
Compared to the prior art, the density 454kg/m of the heat-insulation wall plate utilizing the present invention to produce
3, water-intake rate 34.7%, 28d ultimate compression strength 1.4Mpa, tensile strength 142.7MPa.
Claims (2)
1. the freeze proof rice-straw fibre heat-insulation wall plate of lightweight, it is characterized in that, be made up of the raw material of following weight part: ordinary Portland cement 15-17, adopting iron ore tailings 20-22, ceramic polished slag 25-27, flyash 22-24, light calcium carbonate 6-8, rice-straw fibre 35-37, dodecyl oxyethyl group sultaine 2-4, sulfonation ethylene-propylene rubber(EPR) 7-9, nanometer boron fibre 10-12, organosilicon crylic acid latex 12-14, nitrocalcite 1-2, water-resisting agent 40-43, acetic acid 45-47, described water-resisting agent is made up of following raw materials in part by weight: epoxy resin latex 25-27, vinyl acetate 18-20, isocyanic ester 26-28, CSA swelling agent grog 3-5, slag powders 4-6, dimethyl silicone oil 7-9, polyethylene wax 2-4, Repone K 0.2-0.4, sodium lignosulfonate 1.3-1.6, calcium stearate 0.9-1.2, gelatin emulsion 11-14, its preparation method is: by vinyl acetate, the dimethyl silicone oil ultrasonic disperse 20-30 minute that adds water adds sodium lignosulfonate, be warming up to 50-70 DEG C high-speed stirring 10-20 minute and be incubated 1-2 hour, add isocyanic ester, gelatin emulsion be warming up to 105-125 DEG C high-speed stirring 30-45 minute and be incubated 1-2 hour, be down to room temperature and regulate pH7-8, filter, finally add epoxy resin latex, CSA swelling agent grog, slag powders and other remaining components high-speed stirring 10-15 minute and get final product.
2. the making method of the freeze proof rice-straw fibre heat-insulation wall plate of a kind of lightweight according to claim 1, is characterized in that comprising the following steps:
(1) rice-straw fibre steam pre-treatment 20-40 minute is crushed to particle diameter 4-6mm, put into retort to add acetic acid stirring and evenly mixing and leave standstill 3-5 hour, be heated to 100-130 DEG C of reaction 2-3 hour, filter and wash and dry to neutral, put into water-resisting agent again and flood 6-8 hour, dry obtained modified straw fiber;
(2) flyash, adopting iron ore tailings, ceramic polished slag are put into calcining furnace and at 800-850 DEG C, calcined 40-50 minute under nitrogen atmosphere, add nanometer boron fibre, organosilicon crylic acid latex grinding pulping, add sulfonation ethylene-propylene rubber(EPR) to drop in high-speed mixer with the blended 5-10min of the speed of 1000-1500r/min, send into granulation in tablets press, size controlling is at 3-5mm;
(3) ordinary Portland cement, step (2) reaction mass are put into mixing machine together and stirred maturation process 1-3 hour, add modified straw fiber and other remaining component stirring and evenly mixings, add water with water cement ratio 0.7 and stir into mixed slurry;
(4) finally above-mentioned obtained mixed slurry is put into mould, in 40-45 DEG C of solidification 20-30 minute, the briquet that solidification is taken out in the demoulding is placed in maintenance 25-30 days under natural condition, cuts and packs and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927894.3A CN105399383A (en) | 2015-12-15 | 2015-12-15 | Lightweight antifreezing straw fiber thermal insulation wallboard and manufacturing method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927894.3A CN105399383A (en) | 2015-12-15 | 2015-12-15 | Lightweight antifreezing straw fiber thermal insulation wallboard and manufacturing method therefor |
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| CN105399383A true CN105399383A (en) | 2016-03-16 |
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| CN201510927894.3A Pending CN105399383A (en) | 2015-12-15 | 2015-12-15 | Lightweight antifreezing straw fiber thermal insulation wallboard and manufacturing method therefor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162632A (en) * | 2017-06-14 | 2017-09-15 | 合肥市旺友门窗有限公司 | A kind of light cellular partition board and preparation method thereof |
| CN107298571A (en) * | 2017-07-05 | 2017-10-27 | 合肥市片叶装饰工程有限公司 | A kind of preparation method of fiber reinforcement type fire-proof plate |
| CN108439921A (en) * | 2018-06-07 | 2018-08-24 | 魏浩峰 | A kind of agricultural crop straw complex cement base insulating wall material and preparation method thereof |
| CN108484016A (en) * | 2018-06-07 | 2018-09-04 | 魏浩峰 | A kind of preparation method and insulating wall material of biomass enhancing cement base insulating wall material |
| WO2019000250A1 (en) * | 2017-06-27 | 2019-01-03 | 海门市彼维知识产权服务有限公司 | Lightweight composite exterior wall panel |
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| CN1765808A (en) * | 2005-09-01 | 2006-05-03 | 郭弋 | Straw fiber cement composite material |
| CN101781106A (en) * | 2009-01-15 | 2010-07-21 | 北新集团建材股份有限公司 | Light-weight fiber reinforced cement board and manufacturing method thereof |
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2015
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| CN101781106A (en) * | 2009-01-15 | 2010-07-21 | 北新集团建材股份有限公司 | Light-weight fiber reinforced cement board and manufacturing method thereof |
| CN102417330A (en) * | 2011-08-25 | 2012-04-18 | 暨南大学 | High performance phase change energy storage core material and sandwiched constructional wallboard prepared from same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162632A (en) * | 2017-06-14 | 2017-09-15 | 合肥市旺友门窗有限公司 | A kind of light cellular partition board and preparation method thereof |
| WO2019000250A1 (en) * | 2017-06-27 | 2019-01-03 | 海门市彼维知识产权服务有限公司 | Lightweight composite exterior wall panel |
| CN107298571A (en) * | 2017-07-05 | 2017-10-27 | 合肥市片叶装饰工程有限公司 | A kind of preparation method of fiber reinforcement type fire-proof plate |
| CN108439921A (en) * | 2018-06-07 | 2018-08-24 | 魏浩峰 | A kind of agricultural crop straw complex cement base insulating wall material and preparation method thereof |
| CN108484016A (en) * | 2018-06-07 | 2018-09-04 | 魏浩峰 | A kind of preparation method and insulating wall material of biomass enhancing cement base insulating wall material |
| CN108484016B (en) * | 2018-06-07 | 2020-09-18 | 刘树峰 | Preparation method of biomass reinforced cement-based heat-insulating wall material and heat-insulating wall material |
| CN108439921B (en) * | 2018-06-07 | 2021-02-12 | 深圳市中筑营造建设工程有限公司 | Crop straw composite cement-based heat-insulating wall material and preparation method thereof |
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Application publication date: 20160316 |
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