CN102019699B - Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams - Google Patents
Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams Download PDFInfo
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- CN102019699B CN102019699B CN201010502094A CN201010502094A CN102019699B CN 102019699 B CN102019699 B CN 102019699B CN 201010502094 A CN201010502094 A CN 201010502094A CN 201010502094 A CN201010502094 A CN 201010502094A CN 102019699 B CN102019699 B CN 102019699B
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Abstract
The present invention discloses a method for preparing a lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams. The method comprises the followings steps: dropwise adding sodium hydroxide with certain concentration into a starch milk so as to obtain an alkali-gelatinized starch adhesive; then evenly mixing the obtained alkali-gelatinized starch adhesive with the waste plant fibers and the polystyrene foams, and putting the obtained mixture into a mold; carrying out forming and drying on the mixture so as to obtain the lightweight thermal-insulating board. The method disclosed by the present invention is simple in production process and easy to operate; and the lightweight thermal-insulating board prepared by using the method disclosed by the invention does not contain the harmful materials such as formaldehyde, therefore, the lightweight thermal-insulating board is an environmental-friendly lightweight thermal-insulating board.
Description
Technical field
The present invention relates to a kind of preparation method of light thermal-insulation sheet material, particularly relating to a kind of is the method that adhesive and discarded plant fiber and polystyrene foam prepare light heat preservation plate material with the alkali gelatinized starch.
Background technology
Existing insulation material mostly is the macromolecule insulation material as EPS plate, polyurethane sheet, extruded sheet etc., because the contraction of macromolecular material itself and aging body of wall and the insulation material of easily causing bond not firm, warming plate and plate exterior rendering layer bonding be not firm to make quality problems such as metope produces cracking, hollowing, peeling, comes off, infiltration, reduces or the forfeiture heat insulation effect.Existing decorative panel adopts plasterboard and wood composite board mostly, and wherein plasterboard intensity is low, and layering comes off easily, and this is heavier; Wood composite board contain harmful formaldehyde and thermal and insulating performance poor, yielding.Also there is shortcoming in existing freight transportation packaging plate, because it mostly is wooden greatly or corrugation is made of paper and polystyrene foam, so must consume great deal of raw materials.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of novel method for preparing light thermal-insulation sheet material, this preparation method is a primary raw material with discarded plant fiber, polystyrene foam, starch, NaOH, through reasonable proportioning, simply prepare route and obtain light thermal-insulation sheet material.
The technical problem to be solved in the present invention is solved by following scheme: with the alkali gelatinized starch is the method that adhesive and discarded plant fiber and polystyrene foam prepare light thermal-insulation sheet material, it is characterized in that: with dissolution of sodium hydroxide in running water, make mass concentration and be 40% sodium hydroxide solution, wherein the mass ratio of starch and NaOH is 1: 0.052-0.182; Starch and running water are mixed, make starch milk, wherein starch is 1 with the mass ratio of the running water that disperses starch: 4-8; Under room temperature and the stirring condition, the sodium hydroxide solution that makes is added drop-wise in the starch milk, makes the alkali pasting starch adhesive; Discarded plant fiber, polystyrene foam after making the alkali pasting starch adhesive afterwards and pulverizing mix, wherein the mass ratio of starch and discarded plant fiber, polystyrene foam is 1: 1.0-6.0: 0.01-0.10, the mixture of mixing is put into mould, behind shaping and drying, promptly make light thermal-insulation sheet material.
Technique scheme is described, and the discarded plant fiber mainly refers to the discarded plant fiber in straw, the domestic waste, the discarded plant fiber after the industrial production; Straw mainly comprises maize straw, wheat stalk, rice straw, cotton stalk etc., discarded plant fiber in the domestic waste mainly comprises useless corrugated case, leaf etc., and the discarded plant fiber in the industrial production mainly comprises the potato slag that produces when making starch, the wood chip that the house ornamentation industry produces etc.
Technique scheme is described, and starch can be farina, cornstarch, tapioca during preparation alkali pasting starch adhesive.
Advantage of the present invention is: with discarded plant fiber and polystyrene foam is that raw material and alkali gelatinized starch prepare building decoration, freight transportation packing and building heat preservation sheet material, with building decorative plates in the past as timber, stone material, plastic cement and composite plate and freight transportation packaging plate are as wooden case, corrugated case, XPS and building heat preservation sheet material are as the EPS plate, polyurethane sheet, extruded sheets etc. are compared has remarkable advantages, at first, the present invention is raw material and the comparatively practical sheet material of alkali gelatinized starch preparation with discarded plant fiber and polystyrene foam, cost is lower, raw material sources are wide, and existing building decoration, the freight transportation packing, building heat preservation sheet material is that feedstock production forms mostly with the natural resources, the natural resources of consume valuable not only, and use difficult later the processing, natural environment is done great damage; Secondly, be that raw material has good heat-insulating property with the sheet material that the alkali gelatinized starch prepares with discarded plant fiber and polystyrene foam, and do not contain harmful material such as formaldehyde; Once more, sheet material preparation technology involved in the present invention is simple, equipment needed thereby is simple and easy, accomplishes scale production easily; At last, with discarded plant fiber and polystyrene foam is that the sheet material of raw material and alkali gelatinized starch preparation not only has considerable economic, and the method for more in the past handling discarded plant fiber and polystyrene foam need take a large amount of land resources as: landfill and causes body of groundwater, air to be subjected to severe contamination or burn not only consumption of natural resource but also discharge a large amount of flue dust, pernicious gas, suspended particulate and compare in air and have immeasurable social benefit.
The specific embodiment
Embodiment 1: the 10g dissolution of sodium hydroxide in running water, is made mass concentration and be 40% sodium hydroxide solution; 110g farina and 600ml running water are mixed, make the farina breast, under room temperature and the stirring condition, the sodium hydroxide solution that makes is added drop-wise to the farina Ruzhong, make alkali pasting potato amylum adhesive; Corrugated case, 6g polystyrene foam after alkali pasting potato amylum adhesive and 230g pulverize are mixed, the mixture of mixing is put into mould, behind shaping and drying, promptly make light thermal-insulation sheet material.The assay of the prepared light thermal-insulation sheet material of present embodiment is as shown in the table.
Example 2: experiment condition is with embodiment 1, and different is that 130g farina and 700ml running water are mixed, and makes the farina breast.
Embodiment 3: experiment condition is with embodiment 1, and different is that corrugated case, 5g polystyrene foam after alkali pasting potato amylum adhesive and 300g pulverize are mixed.
Claims (2)
1. be the method that adhesive and discarded plant fiber and polystyrene foam prepare light thermal-insulation sheet material with the alkali gelatinized starch, it is characterized in that: with dissolution of sodium hydroxide in running water, make mass concentration and be 40% sodium hydroxide solution, wherein the mass ratio of starch and NaOH is 1: 0.052-0.182; Starch and running water are mixed, make starch milk, wherein starch is 1 with the mass ratio of the running water that disperses starch: 4-8; Under room temperature and the stirring condition, the sodium hydroxide solution that makes is added drop-wise in the starch milk, makes the alkali pasting starch adhesive; Discarded plant fiber, polystyrene foam after making the alkali pasting starch adhesive afterwards and pulverizing mix, the mass ratio of starch and discarded plant fiber, polystyrene foam is 1: 1.0-6.0: 0.01-0.10, the mixture of mixing is put into mould, behind shaping and drying, promptly make light thermal-insulation sheet material.
2. according to claim 1 is the method that adhesive and discarded plant fiber and polystyrene foam prepare light thermal-insulation sheet material with the alkali gelatinized starch, it is characterized in that: the used starch of preparation alkali pasting starch adhesive is farina, cornstarch, tapioca.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502094A CN102019699B (en) | 2010-10-11 | 2010-10-11 | Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502094A CN102019699B (en) | 2010-10-11 | 2010-10-11 | Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102019699A CN102019699A (en) | 2011-04-20 |
| CN102019699B true CN102019699B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010502094A Expired - Fee Related CN102019699B (en) | 2010-10-11 | 2010-10-11 | Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103288386A (en) * | 2013-07-03 | 2013-09-11 | 内蒙古大学 | Method for preparing water-proof plate material by using kaoline as raw material |
| CN103938743A (en) * | 2013-07-10 | 2014-07-23 | 王彦强 | Novel household garbage recycling method |
| CN104494091A (en) * | 2014-10-24 | 2015-04-08 | 叶香雄 | Method for recovering fast food container to producing exterior wall warming plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583655A (en) * | 2004-06-11 | 2005-02-23 | 张忠和 | Decorative boards |
| CN101704894A (en) * | 2009-12-08 | 2010-05-12 | 湖南省铸万有实业有限公司 | Corn starch pasting method |
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2010
- 2010-10-11 CN CN201010502094A patent/CN102019699B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583655A (en) * | 2004-06-11 | 2005-02-23 | 张忠和 | Decorative boards |
| CN101704894A (en) * | 2009-12-08 | 2010-05-12 | 湖南省铸万有实业有限公司 | Corn starch pasting method |
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| CN102019699A (en) | 2011-04-20 |
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Application publication date: 20110420 Assignee: Jiangxi Nantian Color Printing Packing Co., Ltd. Assignor: Inner Mongolia University Contract record no.: 2015360000096 Denomination of invention: Method for preparing lightweight thermal-insulating board from alkali-gelatinized starches used as adhesive, waste plant fibers and polystyrene foams Granted publication date: 20111130 License type: Exclusive License Record date: 20150623 |
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Effective date of registration: 20160804 Address after: 344000 Lichuan County Industrial Park, Jiangxi, Fuzhou Patentee after: Jiangxi Nantian Color Printing Packing Co., Ltd. Address before: 010021 Hohhot West Road, the Inner Mongolia Autonomous Region, No. 235 Patentee before: Inner Mongolia University |
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Granted publication date: 20111130 Termination date: 20161011 |
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