CN1055315A - Bamboo-based high-polymer compound plates and method for making thereof and application - Google Patents
Bamboo-based high-polymer compound plates and method for making thereof and application Download PDFInfo
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- CN1055315A CN1055315A CN 91103538 CN91103538A CN1055315A CN 1055315 A CN1055315 A CN 1055315A CN 91103538 CN91103538 CN 91103538 CN 91103538 A CN91103538 A CN 91103538A CN 1055315 A CN1055315 A CN 1055315A
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Abstract
The present invention relates to bamboo-based high-polymer compound plates and method for making thereof and application.To be processed into the bamboo board of any geometry and size in the condensation monomer, water-soluble condensate as formaldehyde and urea, trimerization or cyanamid dimerization or phenolic compound formation, low-level polycondensate or their modifier, the aqueous solution of perhaps different condensation monomer co-condensation polymers, perhaps be mixed with in the alkene monomer polymer of initator commonly used and the aqueous copolymers solution after dipping a period of time, then form bamboo-based high-polymer compound plates through solidifying (heating, add curing agent) again.This not buckling deformation of sheet material, not dry and cracked, not mouldy, do not damaged by worms, can be bonded together with any material or object, can be used as the substitute of timber, and than firm wear-resisting, elasticity and good toughness, bright and clean attractive in appearance, not water funk, anti-mould.
Description
The present invention relates to bamboo-based high-polymer compound plates and method for making thereof and application.There is abundant bamboo timber resource in China, mainly is distributed in the mountain area that economize in Fujian, Guangdong, Hunan, Jiangxi, Zhejiang, Sichuan etc.The cycle that the bamboo growth is become a useful person is shorter, if can be developed effectively, can alleviate the disparities between supply and demand of timber, also is a kind of fine approach of bamboo grove mountain development economy simultaneously.The material of bamboo is even, and defective is few, texture is straight, dry shrinkage difference is little, tissue tight, and has stronger elasticity and toughness, anti-pressure and abrasion-proof, and characteristics such as long service life, good looking appearance, any surface finish are the ideal materials that substitutes timber.But wherein the problem of Cun Zaiing is: bamboo board and goods thereof have easy buckling deformation, and easily dry and cracked (especially in dry area), easy mouldy, easy shortcoming such as damaged by worms have limited its application.
The objective of the invention is bamboo board is made a kind of bamboo-based high-polymer compound plates,, keep its natural colored and above-mentioned intrinsic advantage, make it substitute and the new widely purposes of developing as timber to overcome above-mentioned shortcoming.
Measure of the present invention is: the bamboo board that earlier bamboo is processed into any geometry and size according to the need and possibility, again it is put into the water-soluble different condensation products that form by the condensation monomer, low-level polycondensate or its modifier, the aqueous solution of the co-condensation polymer of perhaps different condensation monomers etc., perhaps be mixed with the different vinyl monomers of initator commonly used, flood a period of time in its polymer and the aqueous copolymers solution, by capillarity capillaceous in the bamboo board, maceration extract enters in the bamboo board, this maceration extract is (heating when solidifying, add curing agent) in various degree polycondensation takes place with the active function groups of the cellulose of bamboo board etc., or be deposited in the structure space of bamboo wood and form an integral body with bamboo board, bamboo-based high-polymer compound plates promptly of the present invention.The radial capillary pipe of this bamboo board and all spaces all are aggregated thing and occupy, thereby its water proofing property is greatly improved, prevented because of moisture turnover causing buckling deformation and dry and cracked, moth, mould also do not have the part of staying in simultaneously, avoided thus damaging by worms, mouldy trouble, in addition, in above-mentioned maceration extract, can also add mothproof, anticorrisive agent, as oxine, benzoic acid or derivatives thereof etc.
Bamboo-based high-polymer compound plates of the present invention can use separately, also can adopt distinct methods and mode that the whole plate that it is bonded into various geometries and size is used, and available commercially available or special adhesive is bonded together it and various materials or object securely, even adopt aqueous binders bonding, can in hardening time deformation not take place at adhesive, thereby have wide practical use yet.
The method for preparing bamboo-based high-polymer compound plates of the present invention comprises at least:
1. bamboo board: the bamboo board that bamboo is processed into feasible any geometry and size with general processing method.
2. maceration extract: available have:
A solution: with corresponding mol ratio the condensation monomer is mixed as required, use alkaline aqueous solution, ammoniacal liquor for example, PH transfers to 8-9 with reactant liquor, make it reaction in 70-90 ℃, generate water miscible different condensation product, the low-level polycondensate or their modifier (for example etherificate) of different condensation degrees, the co-condensation polymer of perhaps different condensation monomers, react after 30-60 minute, use acid solution, comprise inorganic acids, hydrochloric acid for example, sulfuric acid or ammonium chloride etc. comprise organic acid, as acetate, oxalic acid, the aqueous solution of citric acid or benzene sulfonic acid, it is stand-by that the PH of reactant liquor is transferred to 6-7, and available condensation monomer comprises: formaldehyde and urea, trimerization or cyanamid dimerization or phenolic compound etc.
B solution: be mixed with the vinyl monomer of initator commonly used and the aqueous solution or the emulsion of polymer or copolymer thereof, comprise: the aqueous solution of the aqueous copolymers solution of styrene or vinylacetate and maleic anhydride or (1: 1) hydrolysis of their copolymer or sulfonated products; Acrylamide and N hydroxymethyl acrylamide or N, the aqueous solution of N-methylene-bisacrylamide; Acrylic acid aqueous solution; The aqueous solution of vinylacetate and hydroxymethyl acrylamide copolymer; The aqueous solution of itaconic acid and N hydroxymethyl acrylamide; The partial hydrolysate of low-molecular-weight polypropylene nitrile, acrylonitrile and other monomers are as the aqueous solution of acrylamide, acrylic acid, methacrylic acid, itaconic acid copolymer or the aqueous solution of their copolymer calcium salt, sodium salt or methylol modifier.Available initator comprises: the azo-compound class, as azodiisobutyronitrile or azo two heptonitriles etc.; The per-compound class, as dibenzoyl peroxide, diacetyl peroxide, potassium peroxydisulfate or ammonium persulfate etc. can constitute the reducing agent of redox system with above-mentioned peroxide, as N, N-dimethylaniline, N, N-dimethyl-p-toluidine, sodium hydrogensulfite, sodium sulfite, potassium metabisulfite (K
2S
2O
5).The reaction temperature that forms above-mentioned polymer or copolymer is 60-80 ℃, polymerization time 3-5 hour.The aqueous solution of water-soluble vinyl monomer does not need to react earlier and promptly can be used for dipping.
3. dipping and curing: the bamboo board described in 1 is put into above-mentioned maceration extract dipping in 20-80 ℃ took out clean its outside liquid of drop in 30 minutes to 24 hours, be as if maceration extract:
(1) the non-condensation product of phenolic compound or a solution of low-level polycondensate of containing then can toast in heater 30-60 minute, and temperature remains on 90-120 ℃, then cooling naturally.
(2) contain the condensation product of phenolic compound or a solution of low-level polycondensate, need in the hexamethylenetetramine aqueous solution of 10-20%, to flood 10-30 minute again, toast as mentioned above again.
(3) polymer or copolymer contain carboxyl or sulfonic b solution, need again in the calcium chloride of 5-10%, and dipping is 10-30 minute in barium chloride or the solder(ing)acid, then toast on for another example.
(4) polymer or copolymer contain the b solution of methylol, need in the acid solution of 5-20% dipping 10-30 minute again, then toast on for another example.
(5) water soluble alkene class monomer solution is in wherein adding a small amount of reducing agent, as sodium hydrogensulfite, can be directly used in dipping, after bamboo board being taken out clean its outside liquid of drop, in peroxide aqueous solution, flooded 5-20 minute again, and then toast as mentioned above.
The characteristics of the bamboo-based high-polymer compound plates that said method makes as previously mentioned, compare with the bamboo board of handling without the method with immersion check weighing method, bamboo-based high-polymer compound plates water imbibition of the present invention is significantly low, as shown in the figure, and with identical adhesive it and various materials or object are carried out bondingly, observe through the experiment in 1 year and not see warpage deformation, do not have come off, free from insect pests, nothing go mouldy, bonding firm, any surface finish is as before attractive in appearance.
Bamboo-based high-polymer compound plates of the present invention has not only kept the intrinsic advantage of bamboo wood, has eliminated its defective, and makes it firm more wear-resisting, practical.And the characteristics more superior than timber are arranged, and for example as flooring material, it is not afraid of and gets wet, and can use scrub water.
Composite board of the present invention has wider purposes, as required can be with diverse ways and mode prepared sheet material and other object or the use that himself is bonded together.For example fritter sheet material can be individually bonding with other objects, also can be bonded into its splicing the macroplate use of various geometries earlier, perhaps described macroplate is bonded together into two-layer or multi-layer sheet use etc. by different way up and down.It can replace the teak floor product of international popular, the wall fitting plate as the sheet material of housing floor, the furniture facing, the decorative panel of vehicle, boats and ships, the table top of panel, experimental bench, instrument platform, these table tops not only need firm wear-resisting, and need elasticity and toughness.Handicraft that makes with bamboo-based high-polymer compound plates of the present invention or its bonding plate and artistic work are than the wooden longer durability that has.
In order to be illustrated more clearly in the present invention, enumerate following examples, but these there is not any restriction to scope of the present invention.
1. system bamboo board: cut open wide as far as possible bamboo band with bamboo is perpendicular, remove the outer cuticle of a bamboo stem, cut into suitable length, the ring ledge that cancellation is outside and inner is made smooth bamboo board dry for standby.
2. preparation maceration extract: 120 gram (2 moles) urea, 240 gram (3 moles) formaldehyde (37% aqueous solution) and 10 milliliters of concentrated ammonia liquors are mixed, added thermal agitation 30 minutes in 80-90 ℃, it is stand-by to be cooled to 50 ℃ of maintenances 30 minutes.
Dipping with solidify: the bamboo board that makes in 1 is immersed in the above-mentioned maceration extract that is lower than 50 ℃, takes out the clean liquid on it of drop after 40 minutes, in apparatus for baking, keep 90 ℃ of bakings one hour.
1. according to example 1 processing bamboo board.
2. with urea 120 grams (2 moles), formaldehyde 120 restrains the aqueous solution (1.5 moles (37% aqueous solution)), and melamine 6.3 grams (0.05 mole) mix, heat was to 80 ℃ of stirrings 30 minutes, use 10% hydrochloric acid then, PH transfers to 6.5-7 with reactant liquor, continue to stir 15 minutes stand-by.
3. dipping is undertaken by the method for example 1 with curing.
Embodiment 3
50 gram (0.7 mole) acrylic acid and 0.05 gram potassium peroxydisulfate are dissolved in 500 ml waters, stirred 5 hours in 70-80 ℃, be cooled to below 50 ℃, to immerse as the bamboo board that makes in the example 1 wherein 40 minutes, after taking out the clean liquid of drop, again it is flooded 30 minutes airings in 5% calcium chloride water, in apparatus for baking, keep 80-90 ℃ of baking of temperature one hour.
Embodiment 4
With 100 gram (1.27 moles) acrylamides and 3 gram (0.018 mole) N, N-methylene-bisacrylamide and 0.01 gram sodium hydrogensulfite are dissolved in 500 ml waters, last one hour in wherein immersing the bamboo board that example 1 makes, after taking out the clean liquid of drop, again it was flooded 10 minutes in 100 ml waters that are dissolved with 0.2 gram potassium peroxydisulfate, in apparatus for baking, toasted 30 minutes about 80 ℃ of temperature after taking out airing.
Description of drawings:
Ordinate is suction percentage.
Abscissa be dip time in the water (hour)
The bamboo board suction situation that curve 1 representative is handled without the inventive method.
Claims (9)
1, a kind of bamboo board, it is characterized in that, described sheet material is a kind of bamboo-based high-polymer compound plates, by be processed into any geometry and the size sheet material in 20-80 ℃, water-soluble different condensation products in the formation of condensation monomer, the low-level polycondensate of different condensation degrees or their modifier, the aqueous solution of the co-condensation polymer of perhaps different condensation monomers, be in the solution of maceration extract after dipping half an hour to 24 hour perhaps at the aqueous solution of the rare class monomer that is mixed with initator and polymer and copolymer, wherein solution is through solidifying [heating (90-120 ℃), add curing agent] form a whole sheet material that constitutes with bamboo board, so be referred to as bamboo-based high-polymer compound plates.
According to the described bamboo board of claim 1, it is characterized in that 2, described condensation monomer comprises: formaldehyde and urea, trimerization or cyanamid dimerization or phenolic compound; Vinyl monomer comprises: styrene, vinylacetate, maleic anhydride, acrylamide, N hydroxymethyl acrylamide, N, N-methylene-bisacrylamide, itaconic acid, acrylonitrile, acrylic acid, methacrylic acid.
3, according to claim 1 and 2 described bamboo boards, it is characterized in that, in described maceration extract, can be added with mothproof, anticorrisive agent, comprising: oxine, benzoic acid or derivatives thereof.
According to the described bamboo board of claim 1, it is characterized in that 4, described maceration extract is formalin and the condensation product of urea condensation monomer formation and the aqueous solution of low-level polycondensate thereof.
According to the described bamboo board of claim 1, it is characterized in that 5, described maceration extract is urea, formalin and the condensation product of melamine condensation monomer formation and the aqueous solution of low-level polycondensate thereof.
According to the described bamboo board of claim 1, it is characterized in that 6, described maceration extract is the aqueous solution of acrylic acid and micro-potassium peroxydisulfate.
According to the described bamboo board of claim 1, it is characterized in that 7, described maceration extract is acrylamide and N, the aqueous solution of N-methylene-bisacrylamide copolymer.
8, prepare the method for the described bamboo-based high-polymer compound plates of claim 1, it is characterized in that, described method comprises at least:
(1) bamboo board: bamboo is processed into any feasible geometry and the bamboo board of size with general processing method;
(2) maceration extract: available have:
A solution: with corresponding mol ratio the condensation monomer is mixed as required, use alkaline aqueous solution, concentrated ammonia liquor for example transfers to 8-9 with the PH of reactant liquor, makes it reaction in 70-90 ℃, generate water miscible different condensation product, the low-level polycondensate of the different degrees of polycondensation or the co-condensation polymer of their modifier (for example etherificate) or different condensation monomers reacted after 30-60 minute, used acid solution, comprise inorganic acids, example hydrochloric acid, sulfuric acid or ammonium chloride; Organic acid, as the aqueous solution of acetate, oxalic acid, citric acid, benzene sulfonic acid, it is stand-by that the PH of reactant liquor is transferred to 6-7, and available condensation monomer comprises: formaldehyde and urea, trimerization or cyanamid dimerization or phenolic compound;
B solution: be mixed with the vinyl monomer of initator commonly used and the aqueous solution of polymer or copolymer thereof, comprise: the aqueous copolymers solution of styrene or vinylacetate and maleic anhydride or their the copolymer hydrolysis or the aqueous solution of sulfonated products; Acrylamide and N hydroxymethyl acrylamide or N, the aqueous solution of N-methylene-bisacrylamide; Acrylic acid aqueous solution; The aqueous solution of vinylacetate and hydroxymethyl acrylamide copolymer; The aqueous solution of itaconic acid and NMA; The partial hydrolysate of low-molecular-weight polypropylene nitrile, acrylonitrile and other monomers, as the aqueous solution of acrylamide, acrylic acid, methacrylic acid, itaconic acid copolymer or the aqueous solution of their copolymer calcium salt, sodium salt or methylol modifier, available initator comprises: azo compound, as azodiisobutyronitrile or azo two heptonitriles; The per-compound class, for example, dibenzoyl peroxide, diacetyl peroxide, potassium peroxydisulfate or ammonium persulfate, can constitute the reducing agent of redox system with above-mentioned peroxide, as N, N-dimethylaniline, N, N-dimethyl-p-toluidine, sodium hydrogensulfite, sodium sulfite, potassium metabisulfite (K
2S
2O
5).The reaction temperature that forms above-mentioned polymer, copolymer is 60-80 ℃, and polymerization time 3-5 hour, the aqueous solution of water-soluble vinyl monomer did not need to react earlier and promptly can be used for flooding;
(3) dipping and curing: the bamboo board described in (1) in 20-80 ℃, is put into above-mentioned arbitrary maceration extract dipping 30 minutes to 24 hours, take out clean its outside liquid of drop, if maceration extract is:
1. the non-condensation product of phenolic compound or a solution of its low-level polycondensate of containing then can toast in heater 30-60 minute, and temperature remains on 90-120 ℃, cooling naturally then,
2. contain the condensation product of phenolic compound or a solution of its low-level polycondensate, needed again in the hexamethylenetetramine aqueous solution of 10-20% dipping 10-30 minute, toast on for another example;
3. polymer or copolymer contain carboxyl or sulfonic b solution, need in calcium chloride, barium chloride or the solder(ing)acid of 5-10% dipping 10-30 minute again, then toast on for another example;
4. polymer or copolymer contain the b solution of methylol, need in the acid solution of 5-20% dipping 10-30 minute again, then toast on for another example;
5. water soluble alkene class monomer solution is in wherein adding a small amount of reducing agent, as sodium hydrogensulfite, can be directly used in dipping, after bamboo board being taken out clean its outside liquid of drop, in peroxide aqueous solution, flooded 5-20 minute again, and then toast as mentioned above.
9, the application of the described bamboo-based high-polymer compound plates of claim 1, it is characterized in that, described sheet material, the decorative panel and the floor that can be used as housing floor, wall fitting plate, furniture facing, vehicle, boats and ships, the table top of experimental bench or instrument platform, the material that is used for handicraft, artistic products, but monolithic uses the macroplate that also can be bonded into any geometry to use or is bonded into two-layer or the multi-layer sheet use.
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| CN 91103538 CN1055315A (en) | 1991-06-01 | 1991-06-01 | Bamboo-based high-polymer compound plates and method for making thereof and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103538 CN1055315A (en) | 1991-06-01 | 1991-06-01 | Bamboo-based high-polymer compound plates and method for making thereof and application |
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| CN1055315A true CN1055315A (en) | 1991-10-16 |
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| CN 91103538 Pending CN1055315A (en) | 1991-06-01 | 1991-06-01 | Bamboo-based high-polymer compound plates and method for making thereof and application |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825638A (en) * | 2012-08-29 | 2012-12-19 | 中南林业科技大学 | Method for performing mouldproof and mothproof treatment to bamboo |
| CN107363952A (en) * | 2017-09-11 | 2017-11-21 | 阜南县猛发工艺品有限公司 | A kind of handling process for improving bamboo wood hygroscopic deformation |
| CN107379167A (en) * | 2017-07-28 | 2017-11-24 | 阜南县中信柳木工艺品有限公司 | A kind of processing method for preventing bamboo product from ftractureing |
| CN108905656A (en) * | 2018-07-12 | 2018-11-30 | 中北大学 | A kind of grafting poly (sodium 4-styrenesulfonate) polysulfone millipore filtering membrane preparation method and application |
| CN111993518A (en) * | 2020-08-28 | 2020-11-27 | 浙江农林大学 | Method for manufacturing bamboo pencil |
| CN114670301A (en) * | 2022-03-17 | 2022-06-28 | 华南农业大学 | Bamboo material with mildew-proof performance and modification method thereof |
| CN115431368A (en) * | 2022-09-30 | 2022-12-06 | 西南民族大学 | Mildew-proof wood composite material and preparation method thereof |
-
1991
- 1991-06-01 CN CN 91103538 patent/CN1055315A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825638A (en) * | 2012-08-29 | 2012-12-19 | 中南林业科技大学 | Method for performing mouldproof and mothproof treatment to bamboo |
| CN107379167A (en) * | 2017-07-28 | 2017-11-24 | 阜南县中信柳木工艺品有限公司 | A kind of processing method for preventing bamboo product from ftractureing |
| CN107363952A (en) * | 2017-09-11 | 2017-11-21 | 阜南县猛发工艺品有限公司 | A kind of handling process for improving bamboo wood hygroscopic deformation |
| CN108905656A (en) * | 2018-07-12 | 2018-11-30 | 中北大学 | A kind of grafting poly (sodium 4-styrenesulfonate) polysulfone millipore filtering membrane preparation method and application |
| CN108905656B (en) * | 2018-07-12 | 2021-02-19 | 中北大学 | Preparation method and application of grafted poly (sodium polystyrene sulfonate) polysulfone microporous filter membrane |
| CN111993518A (en) * | 2020-08-28 | 2020-11-27 | 浙江农林大学 | Method for manufacturing bamboo pencil |
| CN114670301A (en) * | 2022-03-17 | 2022-06-28 | 华南农业大学 | Bamboo material with mildew-proof performance and modification method thereof |
| CN115431368A (en) * | 2022-09-30 | 2022-12-06 | 西南民族大学 | Mildew-proof wood composite material and preparation method thereof |
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