CN105295740A - Aldehyde-free liquid glue and artificial board processing method - Google Patents
Aldehyde-free liquid glue and artificial board processing method Download PDFInfo
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- CN105295740A CN105295740A CN201510646389.1A CN201510646389A CN105295740A CN 105295740 A CN105295740 A CN 105295740A CN 201510646389 A CN201510646389 A CN 201510646389A CN 105295740 A CN105295740 A CN 105295740A
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Abstract
The invention relates to aldehyde-free liquid glue and an artificial board processing method. The liquid glue is prepared by mixing and blending an magnesium chloride aqueous solution and magnesium oxide powder, serving as inorganic materials, according to the ratio of 1: 1; the magnesium chloride aqueous solution is prepared from magnesium chloride powder or halogen pieces and water according to the ratio of 1: 1 to 1: 3, and the purity of the magnesium chloride powder or the halogen pieces is 45% to 99%. Therefore, the liquid glue does not contain formaldehyde, also has favorable gluing strength, is low in price and can also be directly applied to existing mechanical equipment to process artificial boards, without adding or transforming original mechanical equipment, and also without changing an operation mode of longtime habit. The liquid glue is easily accepted by artificial board manufacturers, high in market competitiveness and easily promoted and sold; in addition, when the liquid glue is used for manufacturing the artificial boards, the artificial boards can be directly subjected to hot pressing after coated with the aldehyde-free liquid glue, without undergoing cold pressing, so that the processing procedures are simplified, the production efficiency is high, and meanwhile, the hot pressing temperature is relatively low, the energy consumption is reduced and the production cost is lower.
Description
Technical field
The invention belongs to tackiness agent and man-made board technology field, particularly relate to a kind of liquid adhesive without aldehyde and wood-based plate working method.
Background technology
Along with the Economic development of the mankind and the new line of environmental consciousness, all over the world, especially developed country, developing country are for the regulation of the burst size of methanal of various wood-based plate (comprising glued board, shaving board, fiberboard and core-board) and requirement, more and more stricter, therefore, relevant expert, scholar also research and develop manufacture method and the relative adhesive of various low formaldehyde or zero formaldehyde wood-based plate by every means.
As everyone knows, manufacture the synthetic resin glue (as urea formaldehyde resins, melamine resin and resol) that the wood-based plates such as multiplying plywood, shaving board, fiberboard use recent decades, most formaldehyde containing toxic human body, through the upper appealing of green group of society and the effort of some related sciences man, some have been had not emerge containing the tackiness agent of formaldehyde successively, such as: amylan, bean gum, MDI series glue and the series of the polyethylene based on hot melt adhesive film like tackiness agent.These tackiness agent respectively have relative merits: bean gum low price, but bonding strength and water resistance poor; MDI series glue, bonding strength is good, but expensive, also more difficult operation during use; Poly glued membrane, its water resistance and bonding strength are all good, and price is also inexpensive, but, when producing in batches, up to the present still also could not form automatic production, so that efficiency is on the low side.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides one both formaldehydeless, bonding strength good, price is low, existing machinery apparatus processing wood-based plate can be directly applied to again, without the need to adding or transforming old mechanical means, also the operator scheme of long-term habits need not be changed, be easy to the liquid adhesive without aldehyde received by wood-based plate producer, and directly hot pressing can be carried out after coating is without the liquid adhesive of aldehyde, without the need to colding pressing, work flow simplifies, the wood-based plate working method that production cost is low.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Without a liquid adhesive for aldehyde, by magnesium chloride brine and the magnesium oxide powder of inorganic materials, form according to 1:1 ratio mixing preparation; Wherein, described magnesium chloride brine is by magnesium chloride powder or halogen sheet and water, be prepared from, and the purity of described magnesium chloride powder or halogen sheet is 45% ~ 99% according to 1:1 ~ 1:3 ratio.
Further, the degree Beaume of described magnesium chloride brine is 19 ° ~ 28 °, and the purity of described magnesium oxide powder is more than 85%.
Further, described liquid adhesive is also formed by properties-correcting agent and magnesium chloride brine and magnesium oxide powder mixing preparation, and wherein the weight percent of properties-correcting agent is 0.3 ~ 1%.
Further, described properties-correcting agent is the one in catalyzer, retardant.
A kind of wood-based plate working method, is the working method of glued board, comprises: first, be coated on wood single-plate, be combined into slab by above-mentioned liquid adhesive; Then, directly sent in thermocompressor by slab and carry out hot pressing, hot pressing temperature is 95 DEG C ± 5 DEG C, and hot pressing pressure is 10KG/cm
2~ 14KG/cm
2; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
A kind of wood-based plate working method, is the working method of shaving board, comprises: first, fully mixed by above-mentioned liquid adhesive and mat formation into the slab of multiple-layered wood chipboard with wood shavings; Then, directly sent in thermocompressor by slab and carry out hot pressing, hot pressing temperature is 95 DEG C ± 5 DEG C, and hot pressing pressure is 10KG/cm
2~ 14KG/cm
2; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
Further, when being combined into slab, needing to use aluminium sheet or steel plate as backing plate, carry out hot pressing together with slab.
A kind of wood-based plate working method, is the working method of fiberboard, comprises: first, by water ratio lower than 6% wood fibre and above-mentioned liquid adhesive stir, wherein the weight of liquid adhesive is 35% ~ 40% of fibre weight; And the fiber lay down of glue mixing is contained on teel pallet, form fibre mat; Then, fibre mat directly sent in thermocompressor and carry out hot pressing, hot pressing temperature is 120 DEG C, and leading portion hot pressing pressure is 20KG/cm
2, hot pressing time is set as 20 minutes, and back segment hot pressing pressure is 6KG/cm
2, hot pressing time is set as 10 minutes; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
The invention has the beneficial effects as follows:
The present invention passes through technique scheme, can obtain neither containing formaldehyde, there is again good bonding strength, and price is extremely low, also can directly apply to existing machinery apparatus processing wood-based plate, without the need to adding or transforming old mechanical means, also the operator scheme of long-term habits need not be changed, to be easy to receive by wood-based plate producer, the market competitiveness is strong, is easy to the liquid adhesive without aldehyde of sales promotion; And during for the manufacture of wood-based plate, directly can carry out hot pressing after coating is without the liquid adhesive of aldehyde, without the need to colding pressing, work flow simplifies, and production efficiency is higher, and hot pressing temperature is lower simultaneously, and energy consumption reduces, and production cost is lower.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of liquid adhesive without aldehyde of the present invention, by magnesium chloride brine and the magnesium oxide powder of inorganic materials, forms according to 1:1 ratio mixing preparation; Described magnesium chloride brine is that be prepared from according to 1:1 ~ 1:3 ratio, its degree Beaume is 19 ° ~ 28 ° by magnesium chloride powder or halogen sheet and water.Wherein, the purity of described magnesium chloride powder or halogen sheet is 45% ~ 99% (preferred purity is 99% magnesium chloride powder or halogen sheet), and the purity of described magnesium oxide powder is more than 85%.
In addition, in order to meet different work room temperature environments, operating time needs, the active phase needs of epoxy glue, the requirement of strength etc. of product, described liquid adhesive also can add appropriate properties-correcting agent, with magnesium chloride brine and magnesium oxide powder mixing preparation, wherein properties-correcting agent can be the one in catalyzer, retardant, and its weight percent is 0.3 ~ 1%.
Be below three embodiments of the liquid adhesive without aldehyde of the present invention, particular case is as follows.
Embodiment one:
The described liquid adhesive without aldehyde of the invention process row is liquid adhesive for the manufacture of glued board, is that the magnesium oxide powder of more than 85% 4000 grams and 24 grams of catalyzer allotments form by 4000 grams of magnesium chloride solutions, purity; Wherein, the degree Beaume of described magnesium chloride solution is about 21 °, and by the purity of 1000 grams, to be the magnesium chloride (or halogen sheet) of 99% with the water of 3000 grams be fully uniformly mixed forms; Catalyzer is poured in the mixed glue solution of magnesium chloride solution and magnesium oxide powder, stir, namely form the described liquid adhesive without aldehyde.
When using the liquid adhesive use manufacture glued board without aldehyde described in the present embodiment one, directly can be applied on existing machine for processing manmade board's equipment, specifically comprise following flow process:
(1) utilize drum-type spreadometer to be coated in by above-mentioned liquid adhesive on wood single-plate (middle plate), single spreading amount is about 150 grams/M
2~ 200 grams/M
2, be combined into slab; Now need to use aluminium sheet or steel plate as backing plate (being arranged on below slab), carry out hot pressing together with slab, slab can be avoided to produce loose and cause hot press operation to cause difficulty;
(2) directly sent into by slab in thermocompressor and carry out hot pressing (not needing through-precompressed of colding pressing), hot pressing temperature is 95 DEG C, and hot pressing pressure is 10KG/cm
2, hot pressing time is set as 40 minutes (making thickness is the glued board of 9mm);
(3) by the heating platen after hot pressing, neatly stack, utilize the remaining temperature waste heat on glued board, allow tackiness agent continue deferred reaction, after 24 hours, carry out the operations such as saw limit and sanding.
Embodiment two:
The described liquid adhesive without aldehyde of the invention process row is liquid adhesive for the manufacture of shaving board, is that the magnesium oxide powder of more than 85% 8000 grams and 80 grams of retardant allotments form by 8000 grams of magnesium chloride solutions, purity; Wherein, the degree Beaume of described magnesium chloride solution is about 21 °, and by the purity of 4000 grams, to be the magnesium chloride (or halogen sheet) of 45% with the water of 4000 grams be fully uniformly mixed forms; Retardant is poured in the mixed glue solution of magnesium chloride solution and magnesium oxide powder, stir, namely form the described liquid adhesive without aldehyde.
When manufacturing shaving board without the liquid adhesive use of aldehyde described in this use the present embodiment two, directly can be applied in equally on existing machine for processing manmade board's equipment, specifically comprise following flow process for the shaving board manufacturing three-decker:
(1) utilize glue mixer fully to be mixed with wood shavings by above-mentioned liquid adhesive and mat formation into the slab of ghreelayer particleboard (namely levels uses wood wool, intermediate core layer uses force plane flower), wherein the glue consumption of laminate is 30% ~ 35% of wood shavings weight up and down, intermediate core layer is then 20% ~ 25% of wood shavings weight, is combined into slab; Now need to use aluminium sheet or steel plate as backing plate (being arranged on below slab), carry out hot pressing together with slab, slab can be avoided equally to produce loose and cause hot press operation to cause difficulty;
(2) directly sent into by slab in thermocompressor and carry out hot pressing (not needing through colding pressing), hot pressing temperature is 95 DEG C, and hot pressing pressure is 14KG/cm
2, hot pressing time is set as 45 minutes (making thickness is the shaving board of 9mm); Certainly, before feeding hot pressing, first precompressed can be carried out;
(3) by the heating platen after hot pressing, neatly stack, utilize the remaining temperature waste heat on glued board, allow tackiness agent continue deferred reaction, after 24 hours, carry out the operations such as saw limit and sanding.
Embodiment three:
The described liquid adhesive without aldehyde of the invention process row is the liquid adhesive for the manufacture of fiberboard, is that the magnesium oxide powder allotment of more than 85% 10500 grams forms by 10500 grams of magnesium chloride solutions and purity; Wherein, the degree Beaume of described magnesium chloride solution is about 23 °, and by the purity of 3000 grams, to be the magnesium chloride (or halogen sheet) of 99% with the water of 7500 grams be fully uniformly mixed forms; Magnesium chloride solution and magnesium oxide powder are fully uniformly mixed, namely form the described liquid adhesive without aldehyde.
When manufacturing fiberboard without the liquid adhesive use of aldehyde described in this use the present embodiment three, directly can be applied on existing machine for processing manmade board's equipment equally, specifically comprise following flow process:
(1) utilize glue mixer by water ratio lower than 6% wood fibre and above-mentioned liquid adhesive stir, wherein the weight of liquid adhesive is 35% ~ 40% of fibre weight; And the fiber lay down of glue mixing is contained on teel pallet, form fibre mat;
(2) fibre mat directly sent in thermocompressor and carry out hot pressing (not needing through colding pressing), hot pressing temperature is 120 DEG C, and leading portion hot pressing pressure is 20KG/cm
2, hot pressing time is set as 20 minutes (making thickness is the shaving board of 9mm), and back segment hot pressing pressure is 6KG/cm
2, hot pressing time is set as 10 minutes (making thickness is the shaving board of 9mm); Certainly, before feeding hot pressing, first precompressed can be carried out;
(3) by the heating platen after hot pressing, neatly stack, utilize the remaining temperature waste heat on glued board, allow tackiness agent continue deferred reaction, after 24 hours, carry out the operations such as saw limit and sanding.
Learn from above-mentioned: the liquid adhesive without aldehyde that the present invention is prepared by magnesium chloride brine and the magnesium oxide powder of employing machine material, this liquid adhesive is neither containing formaldehyde, there is again good bonding strength (the bonding strength standard of I class glued board can be reached, namely use 100 DEG C of boiling water dip tests and do not come unglued.), price extremely low (cost can drop to 50% compared with existing common adhesives) simultaneously, also can directly apply to existing machinery apparatus processing wood-based plate, without the need to adding or transforming old mechanical means, also the operator scheme of long-term habits need not be changed, to be easy to receive by wood-based plate producer, the market competitiveness is strong; And during for the manufacture of wood-based plate, directly can carry out hot pressing after the liquid adhesive of this nothing of coating aldehyde, without the need to colding pressing, work flow simplifies, and production efficiency is higher, and hot pressing temperature is lower simultaneously, and energy consumption reduces, and production cost is lower.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. without a liquid adhesive for aldehyde, it is characterized in that, by magnesium chloride brine and the magnesium oxide powder of inorganic materials, form according to 1:1 ratio mixing preparation; Wherein, described magnesium chloride brine is by magnesium chloride powder or halogen sheet and water, be prepared from, and the purity of described magnesium chloride powder or halogen sheet is 45% ~ 99% according to 1:1 ~ 1:3 ratio.
2. the liquid adhesive without aldehyde according to claim 1, is characterized in that, the degree Beaume of described magnesium chloride brine is 19 ° ~ 28 °, and the purity of described magnesium oxide powder is more than 85%.
3. the liquid adhesive without aldehyde according to claim 1 and 2, is characterized in that, described liquid adhesive is also formed by properties-correcting agent and magnesium chloride brine and magnesium oxide powder mixing preparation, and wherein the weight percent of properties-correcting agent is 0.3 ~ 1%.
4. the liquid adhesive without aldehyde according to claim 3, is characterized in that, described properties-correcting agent is the one in catalyzer, retardant.
5. a wood-based plate working method, this working method is the working method of glued board, it is characterized in that, comprising: first, is coated on wood single-plate, is combined into slab by the liquid adhesive described in the claims 1 or 2 or 3; Then, directly sent in thermocompressor by slab and carry out hot pressing, hot pressing temperature is 95 DEG C ± 5 DEG C, and hot pressing pressure is 10KG/cm
2~ 14KG/cm
2; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
6. a wood-based plate working method, this working method is the working method of shaving board, it is characterized in that, comprising: first, is fully mixed by the liquid adhesive described in the claims 1 or 2 or 3 and mat formation into the slab of multiple-layered wood chipboard with wood shavings; Then, directly sent in thermocompressor by slab and carry out hot pressing, hot pressing temperature is 95 DEG C ± 5 DEG C, and hot pressing pressure is 10KG/cm
2~ 14KG/cm
2; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
7. the liquid adhesive without aldehyde according to claim 5 or 6, is characterized in that, when being combined into slab, needing to use aluminium sheet or steel plate as backing plate, carry out hot pressing together with slab.
8. a wood-based plate working method, this working method is the working method of fiberboard, it is characterized in that, comprise: first, by water ratio lower than 6% wood fibre and the claims 1 or 2 or 3 described in liquid adhesive stir, wherein the weight of liquid adhesive is 35% ~ 40% of fibre weight; And the fiber lay down of glue mixing is contained on teel pallet, form fibre mat; Then, fibre mat directly sent in thermocompressor and carry out hot pressing, hot pressing temperature is 120 DEG C, and leading portion hot pressing pressure is 20KG/cm
2, hot pressing time is set as 20 minutes, and back segment hot pressing pressure is 6KG/cm
2, hot pressing time is set as 10 minutes; Finally, by the heating platen after hot pressing, neatly stack, next day can carry out the operations such as saw limit and sanding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646389.1A CN105295740B (en) | 2015-09-30 | 2015-09-30 | The liquid adhesive and wood-based plate processing method of a kind of no aldehyde |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646389.1A CN105295740B (en) | 2015-09-30 | 2015-09-30 | The liquid adhesive and wood-based plate processing method of a kind of no aldehyde |
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| CN105295740A true CN105295740A (en) | 2016-02-03 |
| CN105295740B CN105295740B (en) | 2018-03-30 |
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Cited By (4)
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|---|---|---|---|---|
| CN108238778A (en) * | 2017-01-19 | 2018-07-03 | 浙江农林大学 | Chlorine oxygen magnesium-based particieboard and preparation method thereof |
| CN108301514A (en) * | 2018-03-21 | 2018-07-20 | 佛山市高明顺高木业有限公司 | A kind of fast-assembling log cabin |
| CN108818877A (en) * | 2018-07-16 | 2018-11-16 | 简瑞聪 | A kind of vegetable fibre board cold presswork method and system and cold pressing adhesive |
| CN114905597A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古农业大学 | A kind of method for rapidly preparing inorganic particle board |
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| CN1097205A (en) * | 1993-07-03 | 1995-01-11 | 崔风殿 | Composite adhesive |
| CN1667067A (en) * | 2004-12-20 | 2005-09-14 | 河北金赛博板业有限公司 | Shaving board bonding glue and its special glue making machine |
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| CN108238778A (en) * | 2017-01-19 | 2018-07-03 | 浙江农林大学 | Chlorine oxygen magnesium-based particieboard and preparation method thereof |
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| CN108818877A (en) * | 2018-07-16 | 2018-11-16 | 简瑞聪 | A kind of vegetable fibre board cold presswork method and system and cold pressing adhesive |
| CN114905597A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古农业大学 | A kind of method for rapidly preparing inorganic particle board |
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| CN105295740B (en) | 2018-03-30 |
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Effective date of registration: 20161212 Address after: 528500 Gaoming District, Guangdong City, Foshan Province, more than the mayor of the Gang Road, No. 37 Applicant after: FOSHAN GAOMING SHUNGAO WOOD INDUSTRY Co.,Ltd. Address before: 519000 Guangdong city of Zhuhai province Jida Road No. 16 Huajing Garden Building 2, Room 202 yuan Group Applicant before: Jian Ruicong |
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Effective date of registration: 20211214 Address after: 528500 No. 566, Gongye Avenue, Genghe Town, Gaoming District, Foshan City, Guangdong Province (wood production workshop 8) (residence declaration) Patentee after: Foshan Leju light steel house Co.,Ltd. Address before: 528500 No. 37, Changgang Road, Genghe Town, Gaoming District, Foshan City, Guangdong Province Patentee before: FOSHAN GAOMING SHUNGAO WOOD INDUSTRY Co.,Ltd. |
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Effective date of registration: 20231227 Address after: 528000, No. 2 Shenbu Water, Jiaotang Village, Pingtang Village Committee, Genghe Town, Gaoming District, Foshan City, Guangdong Province (Residence Declaration) Patentee after: FOSHAN GAOMING SHUNGAO WOOD INDUSTRY Co.,Ltd. Address before: 528500 No. 566, Gongye Avenue, Genghe Town, Gaoming District, Foshan City, Guangdong Province (wood production workshop 8) (residence declaration) Patentee before: Foshan Leju light steel house Co.,Ltd. |
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