CN1098976A - A kind of flame-retardant plywood and production method thereof - Google Patents
A kind of flame-retardant plywood and production method thereof Download PDFInfo
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- CN1098976A CN1098976A CN 93109780 CN93109780A CN1098976A CN 1098976 A CN1098976 A CN 1098976A CN 93109780 CN93109780 CN 93109780 CN 93109780 A CN93109780 A CN 93109780A CN 1098976 A CN1098976 A CN 1098976A
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Abstract
The present invention is a kind of flame-retardant plywood, and this glued board is made up of veneer, refractory adhesive and fire retardant.The present invention is owing to adopted special refractory adhesive, and veneer needn't carry out flame treatment before hot pressing, simultaneously because central layer and in the plate surface refractory adhesive is arranged, the fire retardant that face ply sucked some under normal pressure when finished product was handled gets final product.
Production technology of the present invention is simple, and the flame treatment expense is low, and the fire resistance of product meets the requirement of B1 level construction material, in addition, also has performances such as anticorrosion, insect protected.This product not only can be widely used in the interior decoration of building, vehicle and boats and ships, and can be used for the manufacturing of fire-proof wooden door, fire-retardant furniture and pelmet and indoor partition etc.
Description
The present invention relates to a kind of glued board particularly flame-retardant plywood and production method thereof.
According to the requirement of " code for fire prevention design of interior decoration of buildings ", its combustibility of material that is used for the building interior finishing should be the B1 level, is not less than the B2 level when the fireproof alarming system is arranged.As the main material-glued board of building interior finishing, its combustibility is the B3 level.Make inflammable glued board when being used to build interior decoration, can preserve the decorative effect of timber native texture, and combustibility meet the requirement of fire codes, must carry out flame treatment to inflammable glued board.
About the flame-proof treatment method of glued board, existing both at home and abroad many reports, for example wherein a kind of is after rounding becomes veneer, the veneer that will wet soaks certain hour in retardant solution, dry afterwards, presses the technological process of normal plywood and produces flame-retardant plywood.Because the lumen of wet veneer is filled up by water, and is limited by the fire retardant that timber absorbs, with the flame-retardant plywood that this method is produced, its combustibility can only reach the B2 level.Simultaneously, cut at veneer in the process such as limit, a large amount of fire retardants lose with veneer strip.And for example, another kind is that dried veneer is carried out flame treatment, and is dry more afterwards, presses general technology and produces flame-retardant plywood.Big with this method fire retardant uptake, easily obtain flame retardant effect preferably.But dried veneer is in flame treatment and destroy in the dry run seriously again, and the load of the dry drying machine that not only has been multiplied has again also increased energy consumption, flame treatment expense height.In addition, in veneer dry run again, high temperature reacts fire retardant and timber, and the color of product is obviously deepened, and has influenced the decorative effect of natural timber.Also having a kind of is that the finished product glued board is carried out flame treatment, the one, under normal pressure, glued board is soaked certain hour in retardant solution; The 2nd, adopt the vacuum high-pressure method that glued board is carried out flame treatment.Because the glue-line in the glued board has good partition, fire retardant can only infiltrate in the face ply, does not have fire retardant in central layer and the middle plate.With the flame-retardant plywood that this method is handled, its combustibility can only reach the B2 level usually.And adopt vacuum high-pressure method equipment investment height.
The method that the object of the present invention is to provide a kind of novel flame-retardant glued board and produce this glued board, to overcome the deficiency of above-mentioned flame-proof treatment method, the combustibility of product meets the requirement of B1 level construction material simultaneously.
Flame-retardant plywood of the present invention comprises veneer, refractory adhesive and fire retardant.Refractory adhesive contains MD glue, MN glue and fire retardant A, and the weight ratio of three parts is:
MD: MN: A=50-150: 0-200: 15-150, MD glue is made by following chemical substance, urea U, formaldehyde F, dicyandiamide D, melamine M; MN glue is urea-formaldehyde resin adhesive; Fire retardant A comprises phosphorus-compound nitrogen series, phosphoric acid and ammonium halide, and the weight ratio of phosphorus-compound nitrogen series, phosphoric acid, ammonium halide is: 50-150: 5-30: 2-20, and the mol ratio of urea U, formaldehyde F, two cyanogen ammonium D, each component of melamine M is in the MD glue:
U∶D∶M∶F=1.5-3.6∶0.2-1.0∶0.2-1.5∶4.0-12.0。
The production method of flame-retardant plywood of the present invention may further comprise the steps: rounding, veneer drying, shear, repair plate, allotment refractory adhesive, central layer gluing, assembly, precompressed, hot pressing, clipping edge, sanding, immersion treatment, drying, finished product.Solid in the employed retardant solution of immersion treatment is the mixture of ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, borax, ammonium halide, the mol ratio of each component is: 0.6-1.4: 0.5-1.5: 0.05-0.4: 0.05-0.3, solids content in the retardant solution is 15-50%, soaking temperature is 15-100 ℃, and the time that plate soaks in retardant solution is 5 minutes to 12 hours.Product fire retardant uptake is 100-500g/m
2
The fire retardant mechanism of employed refractory adhesive of flame-retardant plywood of the present invention and fire retardant is, at the fire initial stage, when temperature is lower than 300 ℃, ammonium dihydrogen phosphate (ADP) in the face ply, diammonium hydrogen phosphate and borax endothermic decomposition, emit non-flammable gases such as ammonia and water vapour, reduced the outer field heat of flame-retardant plywood on the one hand, the concentration that the while non-flammable gases has diluted imflammable gas has been disturbed combustion chain reaction; Continuation increase along with ambient temperature, the phosphoric acid that decomposites is in a liquid state and covers the surface of timber, combustible timber and oxidant are separated, and the condensation of phosphoric acid heat absorption simultaneously forms polyphosphoric acid, impels cellulose dehydration carbonization, reduced the burst size of imflammable gas (CO), stoped the combustion reaction of timber self, carbon non-activated covers the surface simultaneously, has cut off the supply of oxidant, hindered the transmission of heat, thereby reached flame retardant effect to glued board inside.The purpose that adds borax and ammonium halide is that the borax endothermic decomposition emits water vapour, cover material surface after the fusion, play heat insulation effect, most importantly boride and halogen element react, impel the timber dewatering carbonization to form carbon non-activated, catch active extremely strong OH and H that the timber thermal decomposition goes out, disturb combustion chain reaction.Sandwich layer veneer and middle plate are in above-mentioned combustion process, MD glue and fire retardant generation chemical reaction, cover the surface of central layer and middle plate after the expansion, the heat and the oxidant in central layer and the middle plate and the external world are separated, make it be difficult to burning, the phosphoric acid that reaction simultaneously generates impels the timber dewatering carbonization to form carbon non-activated.Owing to can add the fire retardant of q.s in the MD glue, the flame-retardant system from the top layer to the internal layer that forms makes the combustibility of sheet material reach the requirement of B1 level.
Advantage of the present invention is that production technology is simple, and flame treatment is taken low, and fire resistance meets the requirement of B1 level construction material, has performances such as anticorrosion, insect protected in addition.Flame-retardant plywood of the present invention not only can be widely used in building, the interior decoration of vehicle and boats and ships, and can be used for the manufacturing of wooden fireproof door, fire-retardant furniture and pelmet and indoor partition etc.
Several embodiments of the present invention are provided below.
Embodiment 1:
(1) preparation MD glue: get urea U, formaldehyde F, each component mol ratio of dicyandiamide D, melamine M is: U: D: M: F=1.5: 0.3: 1.5: 8.0.
(2) solids content of preparation MN glue (urea-formaldehyde resin adhesive) resin is 50%.
(3) preparation fire retardant A gets 50 parts of phosphorus-compound nitrogen series, 6 parts of phosphoric acid, 20 parts of ammonium chlorides, each component and mixes by above-mentioned weight ratio.
(4) preparation refractory adhesive, the weight ratio of MD glue, MN glue and each component of fire retardant A is: MD: MN: A=50: 198: 25.
(5) refractory adhesive for preparing is coated in the veneer surface, the veneer glue-spread is 320g/m
2After assembly, precompressed, hot pressing, cutting edge, sanding, carry out the fire retardant immersion treatment, solids content in the retardant solution is 15%, and the solid in the retardant solution is ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, borax, ammonium chloride mixt, the mol ratio of each component is: 0.6: 0.8: 0.3: 0.1, the immersion treatment temperature is controlled at 85 ℃, and plate soaked in retardant solution 10 minutes, and survey and product surface fire retardant uptake are 110g/m
2
Embodiment 2:
(1) preparation MD glue: get urea U, formaldehyde F, each component mol ratio of dicyandiamide D, melamine M is: U: D: M: F=3.4: 0.09: 0.3: 6.0.
(2) preparation MN glue, the solids content of urea-formaldehyde resin adhesive is 65%.
(3) preparation fire retardant A, 3 parts of 30 parts of 145 parts of phosphorus-compound nitrogen series, phosphoric acid, ammonium bromides, each component of getting among the embodiment 1 are mixed by above-mentioned weight ratio.
(4) preparation refractory adhesive, the weight ratio of MD glue, MN glue and each component of fire retardant A is: MD: MN: A=150: 10: 80.
(5) press the method for embodiment 1, the veneer glue-spread is 300g/m
2, the solids content in the retardant solution is 50%, ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, borax, ammonium bromide mixture, the mol ratio of each component is: 1.4: 1.3: 0.06: 0.07, soaking temperature is controlled at 20 ℃, soak time is 10 hours, and survey and product surface fire retardant uptake are 180g/m
2
Embodiment 3:
(1) preparation MD glue: get urea U, formaldehyde F, each component mol ratio of dicyandiamide D, melamine M is: U: D: M: F=2.4: 0.5: 1.1: 7.2.
(2) preparation MN glue, the solids content of urea-formaldehyde resin adhesive is 59%.
(3) preparation fire retardant A mixes 10 parts of 80 parts of phosphorus-compound nitrogen series, 20 parts of phosphoric acid, ammonium chloride with weight ratio.
(4) MD glue, MN glue and each component of fire retardant A of preparing are mixed by following weight ratio: MD: MN: A=100: 75: 150.
(5) press the method for embodiment 1, veneer gluing 450g/m
2, the solids content during immersion in the retardant solution is 48%, ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, the mol ratio of borax, each component of ammonium chloride is: 0.9: 1.1: 0.09: 0.1, soaking temperature is 50 ℃, and soak time is 5 hours, and recording product surface fire retardant uptake is 350g/m
2
Claims (4)
1, a kind of flame-retardant plywood comprises veneer, refractory adhesive and fire retardant, it is characterized in that:
(1) refractory adhesive contains MD glue, MN glue and fire retardant A, and its weight ratio is: MD: MN: A=50-150: 0-200: 15-150
(2) MD glue is made by following chemical substance, urea U, formaldehyde F, dicyandiamide D, melamine M; MN glue is urea-formaldehyde resin adhesive;
(3) fire retardant A comprises phosphorus-compound nitrogen series, phosphoric acid and ammonium halide, and its weight ratio is:
Phosphorus-compound nitrogen series: phosphoric acid: ammonium halide=50-150: 5-30: 2-20
2, flame-retardant plywood according to claim 1 is characterized in that the mol ratio of urea U in the MD glue, formaldehyde F, dicyandiamide D, melamine M is:
U∶F∶D∶M=1.5-3.6∶0.2-1.0∶0.2-1.5∶4.0-12.0。
3, a kind of production method of flame-retardant plywood, may further comprise the steps, rounding, veneer drying, shear, repair plate, allotment refractory adhesive, central layer gluing, assembly, precompressed, hot pressing, clipping edge, sanding, immersion treatment, drying, finished product, the solids content that it is characterized in that the retardant solution that immersion treatment is used is 15-50%, soaking temperature is 15-100 ℃, and plate soak time in retardant solution is 5 minutes to 12 hours.
4, the production method of flame-retardant plywood according to claim 3 is characterized in that containing ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, borax, ammonium halide in the solid of the employed retardant solution of immersion treatment, and the mol ratio of each component is:
0.6-1.4∶0.5-1.5∶0.05-0.4∶0.05-0.3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93109780A CN1045266C (en) | 1993-08-17 | 1993-08-17 | Fire resistant plywood and its prodn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93109780A CN1045266C (en) | 1993-08-17 | 1993-08-17 | Fire resistant plywood and its prodn. method |
Publications (2)
| Publication Number | Publication Date |
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| CN1098976A true CN1098976A (en) | 1995-02-22 |
| CN1045266C CN1045266C (en) | 1999-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93109780A Expired - Fee Related CN1045266C (en) | 1993-08-17 | 1993-08-17 | Fire resistant plywood and its prodn. method |
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| CN (1) | CN1045266C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147299A1 (en) * | 2006-06-15 | 2007-12-27 | Qicheng Zhuang | A method for making fire retardant reconstituted decorative lumber |
| CN101780683B (en) * | 2009-01-19 | 2012-08-22 | 永港伟方（北京）科技股份有限公司 | Composition for modifying wood, preparation method and application thereof |
| CN103612292A (en) * | 2013-12-16 | 2014-03-05 | 北京林业大学 | Manufacturing method of flame-retardant plywood |
| CN103624844A (en) * | 2013-12-13 | 2014-03-12 | 北京林业大学 | Preparation method of flame-retardant veneer |
| CN103624843A (en) * | 2013-12-13 | 2014-03-12 | 北京林业大学 | Production method of flame-retardant veneer |
| CN103692504A (en) * | 2013-12-16 | 2014-04-02 | 北京林业大学 | Inflaming retarding plywood and manufacturing method thereof |
| CN105082268A (en) * | 2015-07-31 | 2015-11-25 | 张家港市盛一包装有限公司 | Fireproof mothproof plywood |
| CN105885348A (en) * | 2016-06-13 | 2016-08-24 | 韶关盈田环保材料有限公司 | Novel flame-retardant plastic additive and production process thereof |
| CN105907231A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Preparation method of wood structure flame-retardant transparent coating |
| CN105907232A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Wood structure flame-retardant transparent paint |
| CN107088944A (en) * | 2017-05-03 | 2017-08-25 | 贵港市鑫宏木业有限公司 | A kind of preparation method of flame-retardant plywood |
| CN109397438A (en) * | 2017-08-18 | 2019-03-01 | 四川承美科技有限责任公司 | A kind of fire-retardant bamboo wood and preparation method thereof |
| CN109605500A (en) * | 2018-11-23 | 2019-04-12 | 广州市盈尔安防火材料有限公司 | Fire retardant anticorrosion multi-layer coreboard and its manufacturing method |
| CN108908535B (en) * | 2018-07-26 | 2020-12-04 | 沭阳县金森源木业有限公司 | Production method of flame-retardant plate |
| CN113510805A (en) * | 2021-04-19 | 2021-10-19 | 徐州盛和木业有限公司 | Intelligent fireproof plywood and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053386A (en) * | 1991-03-07 | 1991-07-31 | 中国林业科学研究院木材工业研究所 | Fire-resistant-chipboard |
| CN2107497U (en) * | 1991-12-12 | 1992-06-17 | 应明川 | Bamboo weaving decorative ceiling |
-
1993
- 1993-08-17 CN CN93109780A patent/CN1045266C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147299A1 (en) * | 2006-06-15 | 2007-12-27 | Qicheng Zhuang | A method for making fire retardant reconstituted decorative lumber |
| CN101780683B (en) * | 2009-01-19 | 2012-08-22 | 永港伟方（北京）科技股份有限公司 | Composition for modifying wood, preparation method and application thereof |
| CN103624844A (en) * | 2013-12-13 | 2014-03-12 | 北京林业大学 | Preparation method of flame-retardant veneer |
| CN103624843A (en) * | 2013-12-13 | 2014-03-12 | 北京林业大学 | Production method of flame-retardant veneer |
| CN103612292A (en) * | 2013-12-16 | 2014-03-05 | 北京林业大学 | Manufacturing method of flame-retardant plywood |
| CN103692504A (en) * | 2013-12-16 | 2014-04-02 | 北京林业大学 | Inflaming retarding plywood and manufacturing method thereof |
| CN105082268A (en) * | 2015-07-31 | 2015-11-25 | 张家港市盛一包装有限公司 | Fireproof mothproof plywood |
| CN105907231A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Preparation method of wood structure flame-retardant transparent coating |
| CN105907232A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Wood structure flame-retardant transparent paint |
| CN105885348A (en) * | 2016-06-13 | 2016-08-24 | 韶关盈田环保材料有限公司 | Novel flame-retardant plastic additive and production process thereof |
| CN107088944A (en) * | 2017-05-03 | 2017-08-25 | 贵港市鑫宏木业有限公司 | A kind of preparation method of flame-retardant plywood |
| CN109397438A (en) * | 2017-08-18 | 2019-03-01 | 四川承美科技有限责任公司 | A kind of fire-retardant bamboo wood and preparation method thereof |
| CN108908535B (en) * | 2018-07-26 | 2020-12-04 | 沭阳县金森源木业有限公司 | Production method of flame-retardant plate |
| CN109605500A (en) * | 2018-11-23 | 2019-04-12 | 广州市盈尔安防火材料有限公司 | Fire retardant anticorrosion multi-layer coreboard and its manufacturing method |
| CN113510805A (en) * | 2021-04-19 | 2021-10-19 | 徐州盛和木业有限公司 | Intelligent fireproof plywood and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045266C (en) | 1999-09-29 |
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