CN1478842A - Special multifunction filler for wood production and its blending process - Google Patents
Special multifunction filler for wood production and its blending process Download PDFInfo
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- CN1478842A CN1478842A CNA021367035A CN02136703A CN1478842A CN 1478842 A CN1478842 A CN 1478842A CN A021367035 A CNA021367035 A CN A021367035A CN 02136703 A CN02136703 A CN 02136703A CN 1478842 A CN1478842 A CN 1478842A
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Abstract
A multifunctional filler dedicated for woodworking industry is prepared from Ca-base bentone, sodium carbonate, wood powder or strew-stalk powder, melamine, adipic acid, urea and oxalic acid through mixing 60-80% of Ca-base bentone with sodium carbonate, grinding, laying aside for at least 3 days, drying, grinding by 120 meshes, and mixing with others by high-speed shearing and stirring. Its advantages are high quality of plywood and low cost.
Description
One, technical field:
The present invention relates to a kind of binder matrix, particularly disclose a kind of special multifunction filler for wood production, be applied to the manufacturing tackiness agent of wood-based plate---in the urea-formaldehyde resin adhesive, as the functional stopping composition of a new generation.
Two, background technology:
Urea-formaldehyde resin adhesive is the thermosetting polymer jointing material that is widely used in the TPR plywood production, but it is subjected to the restriction of synthesis condition and manufacturing glue storage stability, commercially available this resin adhesive liquid is very rare, and water content is about about in the of 50%, and directly using has big difficulty.Home and abroad glued board industry is since the sixties in last century, urea-formaldehyde resin adhesive came out, continue to use the flour adding glue that the agricultural-food wheat processing becomes always, increase denseness and tack as stopping composition, to reduce the infiltration of glue to sheet material, to improving the bonding strength of wood-based plate, certain help (for example, Jilin Forestry college's journal 2000.16 (4): discussed in the paper " the flour amount of filling is to the influence of urea-formaldehyde resin glued board bonding strength " of 192～193 pages of Zhang Shicheng etc.) is arranged.But with the glued board that traditional stopping composition flour is made, suppleness, water-repellancy, physicals such as anti-aging are poor, and flour is in glue, and role is single.The inside and outside industry in native land, play development and the discussion of just paying close attention to the flour substitute as far back as the seventies in 20th century, make filler as wilkinite or artificial modification's wilkinite,, and fail so far to apply eventually because of the filler cost of synthetic is higher than unstable on flour or the performance.(for example: notification number is in 1058979 the patent of invention " a kind of Resin adhesive weighting agent ", attempts to replace with simple bentonite origin powder flour etc.).The domestic much less of ratio of external relevant document record.
In recent years, as the wood-based plate of main decorative building material, " green " nuisanceless cry day is high, and at the end of last year, country has formally issued " indoor decorating material limits of harmful substances " standard, plays compulsory execution July 1 this year.So this respect must have breakthrough technically,, also require the glue filler that this is made contributions, and the flour function singleness does not possess the aldehyde of falling function except urea-formaldehyde resin adhesive itself will significantly reduce the free formaldehyde content.
Again because of in recent years, many big-and-middle-sized making sheet enterprise upgrades in a large number or imports advanced equipment, so that large scale continuous prod operation, the precompressed novel process more and more widely adopts (the pre-adhesion technique of colding pressing of promptly not heating), and with flour or only make filler with artificial natridization's wilkinite etc., the precompressed performance can not satisfy the requirement of pre-pressing process.
Also have, the precompressed of low content of free formaldehyde urea-formaldehyde resin adhesive itself poorer (compare and do not fall aldehyde glue before), press for the filler that adds in the glue and assist and remedy, squeeze time is shortened and the anti-machinery collision of prefabricating plate, and flour and common fillers are difficult to accomplish something in this respect.
Three, summary of the invention:
Patent of the present invention technical problem to be solved:
Compare with traditional stopping composition flour, filler of the present invention will solve:
A, to reducing the residual free formaldehyde content of glue, play auxiliary sorption, than the burst size that obviously reduces sheet material obnoxious flavour formaldehyde with flour.
B, obviously improve the precompressed performance of glued board, solve the synchronous problem of instant viscosity change curve with glue, the machinery that the precompressed bond strength is enough to overcome in the automatic continuous production collides.
C, in the plywood hot-pressing process, this filler will meet the control requirement of mask-making technology to temperature, pressure and time three elements.
D, compare with the flour function singleness, the function of this filler can be regulated, and can expand.As: make the bonding strength, water tolerance of sheet material, anti-aging, suppleness etc. all be better than using flour.More excellent cost performance is arranged again, and cost is lower than flour, and the face this respect also will increase technical difficulty.
The technical scheme that overcomes the above problems:
In order to solve the problems of the technologies described above comprehensively, overcome and alternative flour function simply, the defective that can not regulate and control again, the present invention has adopted following technical scheme:
A kind of special multifunction filler for wood production is characterized in that: its prescription and proportioning (weight percent %) are: A. calcium-base bentonite 55～65; B. yellow soda ash 2～4; C. wood powder or straw powder 16～32; D. trimeric cyanamide 1～3; E. hexanodioic acid 1～1.5; F. the urea element 4～5; G. oxalic acid 4.5～6.
The effect of material is in the prescription:
(1), calcium-base bentonite raw material, itself has mothproof, water-fast anti-aging, fire-retardant, absorb function such as formaldehyde, can improve water-absorbent through sodium modification, after levigate, significantly improve colloid index, mix with an amount of natural calcium base soil again, reach than natural ore deposit soil or the simple better bonding strength of artificial natridization's soil;
(2), the absorption speed of wood powder or plant stalk powder raw material control filler, improve the affinity with timber, reach and inorganic mineral aggregate complementary action, the viscosity change curve improves the precompressed performance when improving gummed; Simultaneously, for remedying the negative impact of wood powder, add trimeric cyanamide, and add the glue performance of linking agent such as hexanodioic acid by hydroxy esterification, crosslinked raising main raw material as strengthening agent to intensity;
(3), add an amount of urea element as formaldehyde-trapping agent, as replenishing of mineral aggregate absorption formaldehyde;
(4), with oxalic acid as acidity regulator, the solidification process of control urea glue improves precompressed and hot pressing performance.
Above raw material is made a kind of Multifunction filler through effects such as chemical modification, grinding are composite, combines the advantage of plurality of raw materials, has better suction, thickening, reduction formaldehyde, improves the precompressed performance, improves multiple function such as sheet material bonding strength.
The blending process of product of the present invention is:
60-80% in i, the A material mixes with whole B material, and grinding about half an hour, is deposited more than 3 days approximately naturally, fully carries out the ion-exchange sodium, and dry then levigate, fineness is more than 120 orders.
Ii, with all the other A of levigated material and C-G material, contain in the high-speed rotary Agravicmixer with aforementioned sodium A material, through high speed shear, stir fully mixed.
Iii, deposit about 3-7 days naturally, treat that finished product gets final product after basicly stable.
Be powder body material in iv, the above prescription, finish fineness all need reach more than 80 orders.
The beneficial effect of patent of the present invention:
(1), with comparing with conventional filler, free burst size of methanal reduces by 20～45% in the finished product glued board, has safeguarded production scene and household personnel's health.
(2), equally use E1 level low formaldehyde emission uf resin glue, squeeze time reduces 20～35% than flour filler, and the cold-adhesion fastness is significantly improved, and is suitable for the operation of mechanize continuous plate.
(3), through thermocompressor in 1.0～1.4Mpa pressure, 98 ℃～105 ℃ temperatures systems, the bonding strength index of its finished product obviously surpasses GB9846.1～9846.12-88 standard value, than improving 5～10 percentage points with the flour filler.Meanwhile, finished product index such as the waterproof of sheet material, anti-aging, suppleness is all improved synchronously, is improved.
(4), for promoting this patent invention on a large scale, the comprehensive cost of product of the present invention, than about the low 30-40% of the existing market average of flour, the present invention has tangible superiority of effectiveness, easy to utilize, realize the update of novel wood industry filler and conventional filler.
(5), patent of the present invention also can be according to customer need, adds relevant starting material, realizes greater functionality, for example: the expansion of functions such as waterproof, mildew-resistant.
Four, description of drawings;
Accompanying drawing is the process flow sheet of product of the present invention
Five, embodiment:
Embodiment 1:
Recipe ratio: A material 55; B material 2; C material 32; D material 1; E material 1.5; F material 4; G material 4.5.Producing filler 1000Kg is example, and embodiment is as follows:
1,400kg and the B material yellow soda ash 20kg that gets in the A material calcium-base bentonite mixes, and grinds about about 30 minutes, deposits naturally more than 3 days, fully carries out the ion-exchange sodium, and drying is finely ground to artificial natridization's soil then, and fineness is more than 120 orders.
2, all the other A material 150kg are levigate to 120 orders, C material wood powder obtains the above fine powder of 80 orders through powder shifter.
3, will fill a prescription in unclassified stores: trimeric cyanamide 10kg, hexanodioic acid 15kg, urea plain 40kg, oxalic acid 45kg, with aforementioned mass transport to the rotary Agravicmixer of high speed, through the high speed blender shear, stir about 20-30 minute, make fully mixed.
4, mixed material was deposited 3-7 days naturally, treated that finished product gets final product after basicly stable.
5, be powder body material in the above prescription, finish fineness all need reach more than 80 orders.
Embodiment 2:
Recipe ratio: A material 65; B material 4; C material 16; D material 3; E material 1; F material 5; G material 6.To produce filler 1000Kg is example, embodiment and embodiment 1 roughly the same, the process omission.
Claims (6)
1, a kind of special multifunction filler for wood production is characterized in that: its prescription and proportioning (weight percent %) are: A. calcium-base bentonite 55～65; B. yellow soda ash 2～4; C. wood powder or straw powder 16～32; D. trimeric cyanamide 1～3; E. hexanodioic acid 1～1.5; F. the urea element 4～5; G. oxalic acid 4.5～6.
2, special multifunction filler for wood production according to claim 1 is characterized in that: recipe ratio is: A. calcium-base bentonite 55; B. yellow soda ash 2; C. wood powder or straw powder 32; D. trimeric cyanamide 1; E. hexanodioic acid 1.5; F. the urea element 4; G. oxalic acid 4.5.
3, special multifunction filler for wood production according to claim 1 is characterized in that: recipe ratio is: A. calcium-base bentonite 65; B. yellow soda ash 4; C. wood powder or straw powder 16; D. trimeric cyanamide 3; E. hexanodioic acid 1; F. the urea element 5; G. oxalic acid 6.
4, a kind of blending process of claim 1～3 special multifunction filler for wood production, comprise that each batching is sheared in the mixing machine high speed, stirring is mixed, mixed back is deposited naturally and is treated the product stable reaction, it is characterized in that: (1), 60～80% parts that A in the proportioning is expected mix with whole B material, grind about about half an hour, deposit naturally more than 3 days, fully carry out the ion-exchange sodium, dry then levigate, fineness is more than 120 orders; (2), with all the other A of levigated material and C～G material, contain in the high-speed rotary Agravicmixer with aforementioned sodium A material, through high speed shear, stir fully mixed.
5, special multifunction filler for wood production blending process according to claim 4 is characterized in that: described after the stirring of mixing machine high speed is mixed, the stable shelf-time is 3～7 days.
6, special multifunction filler for wood production blending process according to claim 4 is characterized in that: be powder body material in described prescription, finish fineness all needs 〉=80 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021367035A CN1478842A (en) | 2002-08-28 | 2002-08-28 | Special multifunction filler for wood production and its blending process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021367035A CN1478842A (en) | 2002-08-28 | 2002-08-28 | Special multifunction filler for wood production and its blending process |
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| Publication Number | Publication Date |
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| CN1478842A true CN1478842A (en) | 2004-03-03 |
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| CNA021367035A Pending CN1478842A (en) | 2002-08-28 | 2002-08-28 | Special multifunction filler for wood production and its blending process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362927B (en) * | 2008-09-18 | 2013-01-23 | 张东成 | Additive agent for preparation of artificial board cementing compound and preparation method thereof |
| CN104263277A (en) * | 2014-10-20 | 2015-01-07 | 常熟市鑫磊木业制造厂 | Filler for adhesive in wood industry |
| CN106584610A (en) * | 2016-12-21 | 2017-04-26 | 陈永钦 | Special glue regulating agent for plywood industry |
| CN109401666A (en) * | 2018-09-03 | 2019-03-01 | 湘潭海泡石科技有限公司 | A kind of plywood glue environmentally friendly filler and its preparation process |
| CN110373130A (en) * | 2019-08-14 | 2019-10-25 | 湘潭海泡石科技有限公司 | A kind of plate adhesive environment-friendly filler and its application method |
| CN115304052A (en) * | 2022-10-13 | 2022-11-08 | 溧阳天目先导电池材料科技有限公司 | Wood-based composite hard carbon negative electrode material and preparation method and application thereof |
-
2002
- 2002-08-28 CN CNA021367035A patent/CN1478842A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362927B (en) * | 2008-09-18 | 2013-01-23 | 张东成 | Additive agent for preparation of artificial board cementing compound and preparation method thereof |
| CN104263277A (en) * | 2014-10-20 | 2015-01-07 | 常熟市鑫磊木业制造厂 | Filler for adhesive in wood industry |
| CN106584610A (en) * | 2016-12-21 | 2017-04-26 | 陈永钦 | Special glue regulating agent for plywood industry |
| CN109401666A (en) * | 2018-09-03 | 2019-03-01 | 湘潭海泡石科技有限公司 | A kind of plywood glue environmentally friendly filler and its preparation process |
| CN110373130A (en) * | 2019-08-14 | 2019-10-25 | 湘潭海泡石科技有限公司 | A kind of plate adhesive environment-friendly filler and its application method |
| CN115304052A (en) * | 2022-10-13 | 2022-11-08 | 溧阳天目先导电池材料科技有限公司 | Wood-based composite hard carbon negative electrode material and preparation method and application thereof |
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