CN1077676A - Wood-based plate - Google Patents
Wood-based plate Download PDFInfo
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- CN1077676A CN1077676A CN 92106472 CN92106472A CN1077676A CN 1077676 A CN1077676 A CN 1077676A CN 92106472 CN92106472 CN 92106472 CN 92106472 A CN92106472 A CN 92106472A CN 1077676 A CN1077676 A CN 1077676A
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- based plate
- fire retardant
- wood
- adhesive
- anticorrisive agent
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Abstract
The invention discloses a kind of new wood-based plate, it is characterized in that with hand hay cutter or be cut into granularity mixing urea formaldehyde resin adhesive, the latex anticorrisive agent less than 15 millimeters agricultural crop straw particle or segment; fire retardant; condition of cure is 50-110 ℃, pressure 0.05-2MPa, 0.25-24 hours time.Promptly can be made into the wood-based plate of various different-thickness.Wood-based plate of the present invention is particularly suitable for as Door for building central layer, ceiling, ceiling, lining and decorates central layer etc.
Description
The invention belongs to artificial composite board, is to be base-material with crops industrial crops straw furtherly, the combined artificial board material of making.
The wood-based plate of prior art is used widely, the fiberboard of various density for example, and particieboard, still, density, the unit weight of these sheet materials are bigger, and the cost height is restricted on using, and wheat straw, straw generally use with full straw, and tension and impact are relatively poor.For improving the deficiency of above-mentioned sheet material, Chinese patent application 90105397X had once proposed a kind of artificial honeycomb plates, and the main material of this plate is with the crop straw of pulverizing (flakey, silk is cotton-shaped), after screening, make artificial honeycomb plates through the comparatively complicated technical process of a cover again.Its weak point is to pulverize, and the screening power consumption is bigger, complex technical process.And No. 86209421 patents of Chinese patent are to form closely the ring-type tack coat and form the light body plate of straw with the evenly distributed back of standing grain class bar of being cut into long section and removing epidermis and surface plate, its weak point is that the straw utilization rate is low, the periphery of erectting the bar section of arranging is non-caked, and has space, tension and rupture strength lower.
The objective of the invention is the weak point at the said goods, it is main body that a kind of crop stalk is provided, novel wood-based plate.
The object of the present invention is achieved like this, and with crops, particularly the straw of long-stalked crop is with hay cutter or chaffcutter hand hay cutter or be cut into granularity less than 15 millimeters particle or segment, and through the 3-5 mesh sieve dust screened out.The straw of crops comprises corn stalk, sorghum straw, paddy straw, waste of flax, tobacco straw, reed, cotton straw etc., in addition, can also use wheat straw, and herbaceous stem straws such as straw mix to mix and use.The straw of above-mentioned crop is with air dry (or force drying), moisture should be less than 10%, the crop stalk particle and the adhesive of segment will be cut into, anticorrisive agent, fire retardant stirs in mixing plant such as rotary beater, evenly stand cloth through hot pressing, the curing of certain hour, promptly becomes wood-based plate of the present invention in mould.Employed adhesive urea formaldehyde resin adhesive preferably in the wood-based plate of the present invention, anticorrisive agent are butyl latexes or/and polychloroprene latex, and fire retardant is that APP is or/and polychloroprene latex.
The concrete component content of wood-based plate of the present invention is: the 1 cubic metre of crop stalk particle piled up naturally and the urea formaldehyde resin adhesive of 3-50kg and the latex anticorrisive agent of 0-4kg also have the fire retardant blend of 0-3kg even.
The latex anticorrisive agent that uses in the wood-based plate of the present invention uses separately with butyl latex and polychloroprene latex or waits component to mix and use, and perhaps the two mixes use with arbitrary proportion and all can.In addition, NBR latex also can be used, and can obtain satisfied effect.What need explanation a bit is, if the use amount of latex anticorrisive agent greater than 0 o'clock, should be not less than 0.4kg, otherwise with result of use is unsuitable.
The fire retardant that uses among the present invention is an APP, or polychloroprene latex, is fire retardant with APP with making after polychloroprene latex mixes with arbitrary proportion perhaps.The same with anticorrisive agent, if the use amount of fire retardant greater than 0 o'clock, should be no less than 0.3kg, otherwise, with result of use is not basic identical.
Be exactly more in addition, the component of adhesive, anticorrisive agent, fire retardant provides with the optimal proportion component, if addition is higher than the numerical value in prostatitis, effect is identical, but production cost has risen.
The manufacture method of the artificial plate of the present invention is with by above-mentioned crop stalk particle, adhesive, anticorrisive agent, fire retardant, even mixed compound, evenly be arranged in the mould, heating-up temperature is 50-110 ℃, and pressure is under the condition of 0.05-2MPa, solidifies 0.25-24 hour.
In addition, the material that mixes can be divided on template, and then be solidified under these conditions.
The advantage of wood-based plate of the present invention is, the straw of crop can all utilize, sliced particles is behind cure under pressure, in conjunction with firm, good integrity, thereby tensile strength is also higher, anti-folding, tensile strength can improve 10-50% than the light body plate of straw, be particularly suitable for doing interior wall dividing plate, packaging boxboard, ceiling and as the panel for construction door, plate fitment etc. have the central layer of thick china.
Below provide specific embodiments of the invention.
In following embodiment, crop straw is meant crop straws such as corn stalk, sorghum straw, paddy straw, waste of flax, reed, tobacco bar, cotton straw, wheat straw, straw, sunflower pole, castor-oil plant straw.And the straw particle of crops is meant that above-mentioned crop straw process hay cutter or shredding machine (as hob type chaff cutter, flywheel cutter) cut up with a hay cutter or be cut into the granular substance after length is sifted out dust less than 15 millimeters segment particle and through 3-5 purpose sieve, and raw material is piled up naturally.It is that cost is low owing to its low price that adhesive is selected catalure for use.In addition, can also use phenolic resin glue, multiple organic bond such as epoxy glue.
Latex can also increase the bonding degree of adhesive simultaneously as anticorrisive agent.
The fire retardant mechanism of ammonium polyphosphate flame retardant is: meet thermal decomposition and become polyphosphoric acid and ammonium, topped fiber surface and fire-retardant.Generally be the aqueous solution with the 15%-25% of APP.
Embodiment 1:
This example is the example of Eco-power wood-based plate of the present invention, get 1 cubic metre of crop stalk particle, 3 kilograms of urea formaldehyde resin adhesives, the two evenly mixes, spread out cloth in mould, condition of cure: temperature 50-55 ℃, pressure 0.6-0.8MPa, time 10-12 hour, can be made into about 18 square metres of the central layer of 35 millimeters thick.Be particularly suitable for doing ceiling, the material of ceiling.
Embodiment 2:
Get 1 cubic metre of the straw particle of crops, 35 kilograms of urea formaldehyde resin adhesives fully mix stand, back cloth in mould, condition of cure, temperature are controlled at 55-80 ℃, and pressure is 1.5-2.0MPa, time 3-4 hour, can be made into about 10 square metres of the interior wall dividing plate of 50 millimeters thickness.
Embodiment 3:
Get 1 cubic metre of the straw particle of crops, 15 kilograms of urea formaldehyde resin adhesives, 0.5 kilogram of butyl latex, 0.3 kilogram of APP.First with Lauxite, butyl latex, APP mixes, again with after the crop stalk uniform particles is mixed, stand cloth in mould, condition of cure: temperature 90-100 ℃, pressure 0.5-1.0MPa time 8-9 hour, can be made into about 17 square metres of the central layer of 38 millimeters thickness.
Embodiment 4:
Get 1 cubic metre of the straw particle of crops, 50 kilograms of urea formaldehyde resin adhesives, 3.5 kilograms of polychloroprene latexs, 0.5 kilogram of APP, earlier with Lauxite, polychloroprene latex, APP fully mix, and mix with the crop stalk uniform particles again, and stand cloth is in mould, condition of cure: temperature 100-110 ℃, pressure 0.05-0.2MPa time 20-24 hour, can be made into about 16 square metres of the central layer of 40 millimeters thick.
Embodiment 5:
Get 1 cubic metre of crop stalk, 50 kilograms of urea formaldehyde resin adhesives, 2 kilograms of polychloroprene latexs, 2 kilograms of butyl latexes, 3 kilograms of APPs, after fully mixing, spread out cloth in mould, condition of cure: temperature 100-110 ℃, pressure 1.8-2.0MPa, 0.25 hour time, can be made into about 18 square metres of the packaging boxboard of 35 millimeters thick.
Embodiment 6,
Get 1 cubic metre of crop stalk, 25 kilograms of urea formaldehyde resin adhesives, 3 kilograms of polychloroprene latexs, 2 kilograms of butyl latexes, after fully mixing, spread out cloth in mould, condition of cure: temperature 70-80 ℃, pressure 0.10-0.30MPa can be made into about 16 square metres of central layer after 40 millimeters in time 18-20 hour.
Embodiment 7,
Get 1 cubic metre of crop stalk, 7 kilograms of urea formaldehyde resin adhesives, 6 kilograms of polychloroprene latexs, earlier Lauxite is fully mixed with polychloroprene latex, mix with the straw uniform particles of crops, stand cloth is in mould, condition of cure: temperature 70-80 ℃, pressure 0.05-0.10MPa time 12-15 hour, can be made into about 40 square metres of the inner wall decoration central layer of 15 millimeters thick.(polychloroprene latex in this example again as fire retardant, if polychloroprene latex is kept to 3 kilograms, increases then better effects if of 3 kilograms of APPs promptly as anticorrisive agent).
Embodiment 8,
Get 1 cubic metre of crop stalk, 45 kilograms of urea formaldehyde resin adhesives, 4 kilograms of NBR latexes, 3 kilograms of APPs fully mix Lauxite with NBR latex and APP earlier again and evenly mix with crop stalk, and stand cloth is in mould, condition of cure: temperature 95-105 ℃, pressure 0.8-1.0MPa time 2-3 hour, can be made into about 18 square metres of the central layer of 35 millimeters thick.
The kind of catalure is more, generally can use Shanghai coatings for furniture factory, 531 urea-formaldehyde resin adhesives of new east station of Guangzhou weathering plant produced, the F-5011 sex change urea-formaldehyde glue that Jinan resin processing plant produces.Or the urea-formaldehyde glue powder aqueous solution of adhensive factory, the Kunlun, Zibo City production.Recommend to use the urea-formaldehyde resin adhesive of Jinan resin processing plant production.In addition, adhesive can also use the acetate copolymer emulsion that Tianjin Organic Chemical Experiment Factory produces.
In force, adhesive consumption is if surpassed the upper limit, and more than the 50kg among the embodiment 5, the sheet material of making still has effect preferably.Similarly, anticorrisive agent also is identical reason with fire retardant.The composition range that provides among the present invention is most economical, the low scope that can ensure the quality of products again of cost, if desired, can also improve the component content of adhesive, anticorrisive agent and fire retardant, and this is conspicuous
Wood-based plate of the present invention, the straw particle is random arrangement, and through certain pressure compacting, contact area is very big between the straw particle, have the curing of adhesive bonding again, with its firm being bonded into one, tension, anti-folding and other indexs are higher, production process is simple, does not almost have the complicated arrangement and the operating process of layering.Crop stalk can complete utilization.And the energy consumption of cutting up with a hay cutter or cutting is little more than pulverizing.Use or mix use after can also utilizing the leftover bits and pieces chopping of making the light body plate of straw.And the thickness of plate can be produced arbitrarily.Can produce tens of wood-based plate cores to hundreds of millimeters thick.
Claims (3)
1, a kind of crop stalk is a main body, contain adhesive, anticorrisive agent, fire retardant through heating, pressurize, solidify the wood-based plate that forms, the straw that it is characterized in that crops is through cutting or/and cut up with a hay cutter the particle that is broken to less than 15 millimeters, adhesive is a urea formaldehyde resin adhesive, anticorrisive agent is a butyl latex or/and polychloroprene latex, and fire retardant is that APP is or/and polychloroprene latex.
2,, it is characterized in that said crop stalk particle, adhesive, anticorrisive agent, fire retardant mix by following component according to the described wood-based plate of claim 1:
1 cubic metre of crop stalk particle
Adhesive 3-50 kilogram
Anticorrisive agent 0-4 kilogram
Fire retardant 0-3 kilogram
3, the manufacture method of the described wood-based plate of a kind of claim 1 is characterized in that crop stalk particle, urea formaldehyde resin adhesive, after anticorrisive agent, fire retardant fully mix, evenly spread out cloth in mould, 50-110 ℃ temperature, pressure is to solidify 0.25-24 hour under the 0.05-2MPa condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106472 CN1077676A (en) | 1992-04-16 | 1992-04-16 | Wood-based plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106472 CN1077676A (en) | 1992-04-16 | 1992-04-16 | Wood-based plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1077676A true CN1077676A (en) | 1993-10-27 |
Family
ID=4942143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106472 Pending CN1077676A (en) | 1992-04-16 | 1992-04-16 | Wood-based plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1077676A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344841C (en) * | 2003-06-06 | 2007-10-24 | 杨英达 | Metal-face wall material and wall panel, manufacturing method thereof |
| CN100417500C (en) * | 1998-06-17 | 2008-09-10 | 尼勒纤维纸浆和纸公司 | Arundo donax pulp, paper product and flakeboard |
| CN1839037B (en) * | 2003-09-26 | 2010-08-18 | 禾逊专业化学公司 | Time released curing system |
| CN102094567A (en) * | 2010-06-01 | 2011-06-15 | 汉寿县洞庭木业有限责任公司 | Door sheet produced by using straw, husk and sawdust |
| CN103433993A (en) * | 2013-08-28 | 2013-12-11 | 陆美玲 | Production method of damp-proof ceiling decorative sheet |
| CN104231648A (en) * | 2014-09-12 | 2014-12-24 | 南京信息工程大学 | Environment-friendly reed board and preparation method thereof |
| CN104760111A (en) * | 2015-03-30 | 2015-07-08 | 广西宾阳县荣良新材料科技有限公司 | Anti-flaming chipboard and production method thereof |
| CN110539542A (en) * | 2019-08-12 | 2019-12-06 | 朱玉南 | Moisture-proof and mildew-proof composite flame-retardant plate and preparation method thereof |
-
1992
- 1992-04-16 CN CN 92106472 patent/CN1077676A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417500C (en) * | 1998-06-17 | 2008-09-10 | 尼勒纤维纸浆和纸公司 | Arundo donax pulp, paper product and flakeboard |
| CN100344841C (en) * | 2003-06-06 | 2007-10-24 | 杨英达 | Metal-face wall material and wall panel, manufacturing method thereof |
| CN1839037B (en) * | 2003-09-26 | 2010-08-18 | 禾逊专业化学公司 | Time released curing system |
| CN102094567A (en) * | 2010-06-01 | 2011-06-15 | 汉寿县洞庭木业有限责任公司 | Door sheet produced by using straw, husk and sawdust |
| CN102094567B (en) * | 2010-06-01 | 2012-09-26 | 汉寿县洞庭木业有限责任公司 | Door sheet produced by using straw, husk and sawdust |
| CN103433993A (en) * | 2013-08-28 | 2013-12-11 | 陆美玲 | Production method of damp-proof ceiling decorative sheet |
| CN105479583A (en) * | 2013-08-28 | 2016-04-13 | 钱秀英 | Production method for producing damp-proof ceiling decorative density board from mulberry branch powder |
| CN104231648A (en) * | 2014-09-12 | 2014-12-24 | 南京信息工程大学 | Environment-friendly reed board and preparation method thereof |
| CN104231648B (en) * | 2014-09-12 | 2016-08-24 | 南京信息工程大学 | A kind of reed rod environment-friendly sheet and preparation method thereof |
| CN104760111A (en) * | 2015-03-30 | 2015-07-08 | 广西宾阳县荣良新材料科技有限公司 | Anti-flaming chipboard and production method thereof |
| CN110539542A (en) * | 2019-08-12 | 2019-12-06 | 朱玉南 | Moisture-proof and mildew-proof composite flame-retardant plate and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |