CN102773905B - Method for producing light wallboards by using rice hulls - Google Patents
Method for producing light wallboards by using rice hulls Download PDFInfo
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- CN102773905B CN102773905B CN201210277615.XA CN201210277615A CN102773905B CN 102773905 B CN102773905 B CN 102773905B CN 201210277615 A CN201210277615 A CN 201210277615A CN 102773905 B CN102773905 B CN 102773905B
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Abstract
The invention provides a method for producing light wallboards. Produced walls utilize rice hulls as raw materials. The method includes immersing the rice hulls into an ammonium polyphosphate aqueous solution with a concentration of 5%, subjecting the immersed rice hulls, silane coupling agents and polyethylene wax into a high-speed mixer to hot mix; performing cold mix till the temperature is reduced to 35 DEG C, adding antioxidants, antimony trioxide, foamers, cement and fly ash for continuous mix; adding plastic and molybdenum trioxide for secondary hot mix; cooling the generated mixture; performing granulation at a temperature between 100 DEG C and 105 DEG C; pushing a plane plate for extrusion molding and performing cooling to obtain the light wallboards. The wallboards produced by the method have the advantages of being light, high in strength, fire-retardant, little in smoke and the like and can be widely applied in room decoration.
Description
Technical field
The present invention relates to a kind of production method of wallboard.
Background technology
Rice husk is a kind of lignocellulosic material, approximately contains 20% lignin, and the cellulose of 40% left and right, the pentose polymer (being mainly hemicellulose) of 20% left and right in addition, approximately contain the organic compounds such as 20% ash content and a small amount of crude protein, crude fat.The silica that rice husk contains with network-like distribution wherein, plays skeleton function, and lignin, cellulose etc. is filled in network.The content of ashes of rice husk is very high, is mainly silica, and its content is about 20%, and from the exocuticle of rice husk to endosexine, silica is with certain structural arrangement, and its content successively decreases gradually.Silica makes rice husk have protection against the tide, mothproof, fire-retardant and thermal and insulating performance, has suitable industrial utilization and is worth.Rice husk is generally naturally concentrated in the time of processing paddy, and due to the needs of husk rice, rice husk itself is drying (moisture content is about 9%) simultaneously, and this application to rice husk is favourable.If the comprehensive utilization enterprise of rice husk just build near grain processing plant, can significantly reduce the transporting something containerized of raw material, reduce expense and the energy consumption of aspects such as storing, dry, therefore carry out the comprehensive utilization of rice husk, will obtain good benefit.
Summary of the invention
The invention provides a kind of method of Light trabs, it is raw material that the body of wall of producing adopts rice husk, make through steps such as overheated mixed, cold mixed, granulation, extrusion modlings, there is the features such as lightweight, high-strength, difficult combustion, cigarette are few, be one can be in house fitting widely used wallboard.
For achieving the above object, the present invention adopts following technical scheme:
1) rice husk being put into concentration is 5% APP aqueous solution soaking, soaks and pulls out and drain after 25-30 minute;
The APP aqueous solution is fire retardant, and through the rice husk soaking, combustibility greatly reduces, and can determine in the time that concentration is 5% flame retardant effect the best of APP solution through test of many times.
2) by weight, rice husk, the silane coupler of 3-4 part and the Tissuemat E of 1-2 part got after the immersion of 55-60 part are put into high-speed mixer, mixed 3 minutes of heat at 125 DEG C of temperature;
Tissuemat E is lubricant.
3) it is cold mixed that batch mixing step 2 being obtained is put into cold mixer, treats that temperature drops to 35 DEG C, by weight, adds the antioxidant of 0.3-0.5 part, the antimony oxide of 12 parts, the blowing agent of 1 part, the cement of 7 parts and the flyash of 8 parts to continue to mix 3 minutes;
Antimony oxide is fire retardant, adds after cement and flyash, can make the final strength of wallboard increase 20-25%.
4) in batch mixing step 3 being obtained, add the plastics of 15 parts and the molybdenum trioxide of 1 part, again put into high-speed mixer, mixed 10 minutes of heat at temperature 85-90 DEG C;
Molybdenum trioxide is smoke suppressant, adds after this material, and the cigarette amount generating when final wallboard burns can reduce 60%-70%.
5) batch mixing generating in step 4 is cooled to 35 DEG C;
6) cooling batch mixing is dropped in dual-screw pelletizer and carries out granulation, prilling temperature is 100-105 DEG C;
7) pellet step 6 being generated is by surface plate extrusion molding on extruder, and extrusion temperature is controlled at 160 DEG C.
8) the cooling Light trabs that obtains.
Another object of the present invention is to provide a kind of Light trabs, and this wallboard adopts said method to produce.
The invention has the beneficial effects as follows:
1, light-high-strength;
2, difficult combustion;
Even if the 3 cigarette amounts of burning, producing are little.
Detailed description of the invention
embodiment 1
Utilize rice husk to produce a method for Light trabs, comprise the steps:
1) rice husk being put into concentration is 5% APP aqueous solution soaking, soaks and pulls out and drain after 25-30 minute;
2) by weight, rice husk, the silane coupler of 3-4 part and the Tissuemat E of 1-2 part got after the immersion of 55-60 part are put into high-speed mixer, mixed 3 minutes of heat at 125 DEG C of temperature;
3) it is cold mixed that batch mixing step 2 being obtained is put into cold mixer, treats that temperature drops to 35 DEG C, by weight, adds the antioxidant of 0.3-0.5 part, the antimony oxide of 12 parts, the blowing agent of 1 part, the cement of 7 parts and the flyash of 8 parts to continue to mix 3 minutes;
4) in batch mixing step 3 being obtained, add the plastics of 15 parts and the molybdenum trioxide of 1 part, again put into high-speed mixer, mixed 10 minutes of heat at temperature 85-90 DEG C;
5) batch mixing generating in step 4 is cooled to 35 DEG C;
6) cooling batch mixing is dropped in dual-screw pelletizer and carries out granulation, prilling temperature is 100-105 DEG C;
7) pellet step 6 being generated is by surface plate extrusion molding on extruder, and extrusion temperature is controlled at 160 DEG C;
8) the cooling Light trabs that obtains.
The wallboard of production is tested:
| Project | Value | National standard |
| Moisture content (%) | 1.38 | ≤2 |
| Bending strength (MPa) | 28 | ≥16 |
| Shore hardness (HD) | 61 | ≥55 |
| Combustibility (level) | B1 | B1 |
| Smoke density (grade) | 41 | ≤50 |
| Flue gas toxity (mg/L) | 17.3 | ≥10 |
It will be recognized by those skilled in the art, do not departing under the prerequisite of protection scope of the present invention, can carry out various amendments, variation and combination to above-mentioned embodiment, and think that this amendment, variation and combination are within the scope of originality thought.
Claims (2)
1. utilize rice husk to produce a method for Light trabs, it is characterized in that comprising the steps:
1) rice husk being put into concentration is 5% APP aqueous solution soaking, soaks and pulls out and drain after 25-30 minute;
2) by weight, rice husk, the silane coupler of 3-4 part and the Tissuemat E of 1-2 part got after the immersion of 55-60 part are put into high-speed mixer, mixed 3 minutes of heat at 125 DEG C of temperature;
3) it is cold mixed that batch mixing step 2 being obtained is put into cold mixer, treats that temperature drops to 35 DEG C, by weight, adds the antioxidant of 0.3-0.5 part, the antimony oxide of 12 parts, the blowing agent of 1 part, the cement of 7 parts and the flyash of 8 parts to continue to mix 3 minutes;
4) in batch mixing step 3 being obtained, add the plastics of 15 parts and the molybdenum trioxide of 1 part, again put into high-speed mixer, mixed 10 minutes of heat at temperature 85-90 DEG C;
5) batch mixing generating in step 4 is cooled to 35 DEG C;
6) cooling batch mixing is dropped in dual-screw pelletizer and carries out granulation, prilling temperature is 100-105 DEG C;
7) pellet step 6 being generated is by surface plate extrusion molding on extruder, and extrusion temperature is controlled at 160 DEG C;
8) the cooling Light trabs that obtains.
2. a Light trabs, adopts rice husk to produce, and it is characterized in that, adopts method claimed in claim 1 to produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277615.XA CN102773905B (en) | 2012-08-07 | 2012-08-07 | Method for producing light wallboards by using rice hulls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277615.XA CN102773905B (en) | 2012-08-07 | 2012-08-07 | Method for producing light wallboards by using rice hulls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102773905A CN102773905A (en) | 2012-11-14 |
| CN102773905B true CN102773905B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210277615.XA Expired - Fee Related CN102773905B (en) | 2012-08-07 | 2012-08-07 | Method for producing light wallboards by using rice hulls |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305021B (en) * | 2013-07-09 | 2016-05-18 | 南京林业大学 | A kind of fire-retardant rough and initial composite and manufacture method thereof |
| CN105062111A (en) * | 2015-07-30 | 2015-11-18 | 重庆市泰日建材有限公司 | Light partition board and preparation method thereof |
| CN108487507B (en) * | 2018-04-02 | 2023-08-01 | 浙江省二建建设集团有限公司 | Combined heat insulation wall for power plant and construction method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100480314C (en) * | 2006-04-03 | 2009-04-22 | 北京印刷学院 | Degradable, difficult combustible, foamed damping packing material, and preparation method thereof |
| CN1872512A (en) * | 2006-06-29 | 2006-12-06 | 浙江大学 | Section material synthesized from rice hull, and preparation method |
| CN101049709A (en) * | 2007-03-01 | 2007-10-10 | 赵永生 | Nano composite woody material, and preparation method |
| CN101486542A (en) * | 2008-01-14 | 2009-07-22 | 王蕴生 | High strength self-heat preserving hollow wall board and method of manufacturing the same |
| CN101367977B (en) * | 2008-08-15 | 2011-05-18 | 黄山华塑新材料科技有限公司 | PVC fine foaming wood-plastic coiled material and method of preparing the same |
| CN102453290B (en) * | 2010-10-22 | 2013-09-04 | 中国石油化工股份有限公司 | Flame-retarding smoke-inhibiting PVC wood plastic composite foamed material and manufacturing method thereof |
| CN102002251A (en) * | 2010-11-24 | 2011-04-06 | 宁波维卡木业科技有限公司 | Wood plastic composite coiled material floor and preparation method thereof |
| CN102558716B (en) * | 2012-03-06 | 2013-11-06 | 李雪连 | Method for manufacturing plastic-wooden composite section bar |
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| CN102773905A (en) | 2012-11-14 |
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