TW200426014A - A way of strengthening wood added bark - Google Patents

Abstract

This invention relates to a way of strengthening wood added bark. Resin is filled into wood by using the way of vacuum pressure, and resin would be dried by heating and pressing. Resin can be filled into gaps and cover wood and bark because of a great number of gaps and pores. Wood and bark would be stronger by using aforementioned way.

Description

200426014 V. Description of the invention (l) 4 * [Technical field to which the invention belongs] The present invention relates to a method for manufacturing a strengthened bark log, particularly a method for forcibly pouring resin into the log or wood with bark to make the bark The gap between the wood and the log is filled with resin. After heating and pressing, a bark-containing wood material with good structural strength can be formed. [Previous technology] According to the inventor, on May 29, 1989, the inventor filed an application for "strengthening the method of strengthening the oriented particle board" with the Bureau, and has approved the invention patent and announced it on June 16, 9 In the patent gazette, the oriented particle board is the closest to natural hard wood among the artificial wood boards. However, although the development of artificial boards has been quite vigorous, the use of wood boards is still the consumer's favorite.

Wood is an indispensable substance in human life. Since ancient times, wood has been one of the most widely used materials in human life. Food, clothing, housing, and walking have been based on wood to extend various practical tools or materials. In modern plastic technology and industrialized society, although there are various substitutes, wood is still one of the important raw materials. For example, paper making, construction, decoration, and furniture can hardly be separated from the scope of using wood as the basic raw material. However, due to the rapid increase of the world's population and the rapid expansion of land reclamation and utilization, forest resources are increasingly shrinking. Therefore, how to use the most important materials of limited forest resources more effectively is an urgent task. In the utilization of various wood resources, in addition to cutting and using the wood directly, there are still some wood wastes that are more effectively used, such as plywood, wood core boards, particle boards, cement wood wool, etc., and the recent oriented grain tablets. Board [directional particle board], curved wood board, etc.

200426014 V. Description of the invention (2) The use, decoration, or industry of various laminated timbers and raw wood as the basis. Many of the skin holes and fibers have not been discarded effectively. In particular, the advanced bark technology makes human beings more admired today. It is limited to wood, but it cannot be used. In addition, in the book by Bian Zhiren, a use of wood and [volume 1 issue 1]. Nowadays, the continuity of the invention has led to the mutual exchange of the experience of hard work and intensive repair. The present invention hopes that Qin Chengcai ’s materials are almost fast, and the bark is a pity because of its length and development. Although it is rough, the artificial wood is natural, and the wood part is long enough to make all kinds of wood. Liu Wenbing Turning Material Technology to Volume 21 Almost the entire wood is used optimally, reaching its limit. However, regardless of whether it is used as a building, the color, rough surface, and strength of materials within the surface of the wood (bark) are limited, so that its use value has been regarded as waste in the production of materials until now. It is uneven, but has natural beauty. It is full of materials, and rare natural materials are rare. Therefore, the use of wood is more common, but also the material still used in the phloem (that is, the bark). Regarding the application of wood in the literature, such as the basic application of wood in the Japanese Rendu 2 睪 a, Wu Shun Zhaozhi, and the past years, the Forestry Industry Journal " 4] did not mention the reprocessing of bark is beneficial because The above-mentioned wooden queen is engaged in + & Α, ^ ^ Utilization of the bark of the inferior bark still pays 4 kinds of waste of waste wood. $ Α &%

For the spirit of good, and I also support you I / $ ☆ ☆ The wrong professional knowledge and system can provide a more useful and jealous: the next development of practical and easy to use bark-containing wood [Invention content】

200426014 V. Description of the invention (3) The present invention is to impregnate the resin containing bark or the bark containing thin wood that is sawn off 8 ^ in the wood-making operation, and then harden it, so that the bark and wood are reformed into plastic bark (including Timber]; Because the bark undergoes a plasticizing treatment, its hardness and strength are significantly increased, and it is closely combined with the underlying wood to form a whole, which is not easy to peel off. It is greatly increased, and can be used as interior decoration or landscape decoration materials, which greatly increases the available part of wood and wastes resources. [The implementer first asks the wood [or the bark of the original veneer (1)], because there are many injections between the bark (), these injections are infused with the bark and the wood (1) and the wood () except In its fruit 0 formula] (see the first figure) (2) 1) of wood (2), wood skin holes, resin filled in the bark of the tree (1) can fill 2) skin holes 2), so that The overall strength can be shown, vacuum is applied, and then (2), using the wood containing fat to fill the tree and the gap. The whole piece is obvious. It will be heated under pressure and the bark will be used. (2) Heavy bark (1), impregnated with bark (Improved resin with external bark (1) injected with tree pressure to harden resin 1) and wood (2, voids, resin 30% or more And more than 40% of the irrigation volume, the wood (2) and the wood (2) that enters and coats the bark (1), also has a fire protection effect. Please explain the actual implementation methods and manufacturing procedures and refer to the first The picture and the second picture show: 1. Infusion of wood with bark (皮) with Minamin resin Wood (2):

In addition, when synthesizing the Minamine resin, its melamine and formaldehyde 200426014 V. Description of the invention (4) ① Put 25 0 Og of a 3 7% low methanol formaldehyde aqueous solution in the reaction furnace β, and use 2N NaOH aqueous solution _ Between 011 and 8 ~ 9, add 1 890g of melamine, and then heat the reaction solution to boiling [between 80 ~ 9 5 ° C], and maintain boiling for about 10 minutes, start sampling and check the reaction solution Hydration ratio [Dutch DSM method], when the hydration ratio reaches between 1 ~ 1 · 5, the reaction solution is cooled to room temperature 'and the pH is adjusted to between 9 · 2 ~ 9 · 4 with 2N NaOH, and finally diluted with water to Resin content of 40 ~ 55% solids. At the same time, the resin viscosity is controlled between 10 ~ 80cps, but the resin liquid should be kept clear and transparent. The molar ratio can be from 1 ·· 1 to 1: 3; and the synthesis of the melamine resin is not limited to using melamine and formaldehyde. It can also be mixed with melamine and urea to form a mixture, and then copolymerized with formaldehyde. Among them, The molar ratio of the melamine to urea is between 3: 1 and 1: 4, and the molar ratio of the mixture of melamine and urea and formaldehyde is between 1: 1 and 1: 3. 0 The procedure (1) of the produced Memenex resin was vacuum-infused into the wood (2) of the bark (1). First with bark 1), the wood (2) is placed in the filling container (4), and the inside of the filling container (4) is pumped to less than an atmospheric fortress [760money-Hg] ~ 3nim-Hg with a vacuum machine 3. [The best is 50 g of Hg]

Main / Inlet 2 (4 1) Inject the tree moon purpose 'Finally increase the main pressure of resin irrigation to ^ Kg / cnf [preferably 3Hg / cnf], and maintain it at this calendar', then release the infusion container (4) The excess tree 'is evacuated by the vacuum machine (3) to less than one atmosphere

200426014 V. Description of the invention (5) ~ 3mm-Hg [The best Α ζ after the step with bark (1 ^: Finally, the vacuum pump step f 虔) will be taken out 妯 t η (2) And take out the tree vertical flow remaining on the surface of the wood (2) with the bark (1)] and weigh it. January fluid is not obvious [no

The one shown in the table 'is the change in weight of the melamine resin with bark tincture before and after. 、 Z ^ W l 丨 'before) ... Note = 1 2345 Η ———— I 1380 I 1160 I 1220 I 970 I 1050 2730 236 0 1970 2370 2170

H 97. 8 103 · 4 61. 4 144. 3 106. 7 The wood (2) with bark (1) is slightly infused, and the thickness is slightly increased; the present invention will be discussed in the evening * = the change is extremely dramatic). Tochigi: (2) the water content of a, the viscosity of the resin, the solid content of the resin solution, the perfusion pressure, and the perfusion time, etc., prove that the variables are injected into the wood with bark (1) (2) The resin content of all has a shadow plastic. Generally speaking, the water content is inversely proportional to the perfusion amount, but the difference is not large. ^ The lower the viscosity, the higher the perfusion volume, the higher the solid content of the resin solution, and the more perfusion volume, but the maximum amount is between 40-50, the solid content exceeds 55%, and the perfusion volume

Page 8 200426014

V. Explanation of the invention (6) It does not increase significantly, which may be related to the increase in viscosity when the solid content is high; In addition, the larger the perfusion pressure, the more the perfusion volume, but it is not obvious after exceeding 30 Kg / cm2. As for the perfusion time, it is directly proportional to the perfusion volume. The longer the perfusion time, the more perfusion volume. Among them, the perfusion volume of the Minamine resin is 30% of the weight of the wood (2) with & skin (1). ~ 120%. ③ Dry the wood (2) with bark (1) after pouring at room temperature for 3 days, then heat it to 80 ° C or more with high frequency [external infrared temperature measurement] to cure the resin, and then dry it at room temperature 4 After 8 hours, a fire-resistant, increased-strength wood (2) with bark (1) appears.

As shown in Table 2, the weight of wood (2) with bark (1) before pouring and drying after pouring is compared. 1Wood with bark 丨 Weight before infusion Weight changes after infusion 丨 Wood sample number I (g) (g) (%) p · HI II — 1111 · · __ ..... — 1 Guangyi ~ Ten— One . 丨 A ....... 1 1 1 1. 38 1. 98 + 93 · 5 1 2 1 1. 22 1, 58 + 29. 5 1 3 1 0. 97 1. 69 + 74 · 2 • 1 4 I 1. 41 2 · 10 + 48 · 9 The original resin absorption is about 61 · 4% of the weight of wood (2) with bark (1), but the weight after drying is only 29. 5%, and The theoretical value is up to 13% 'may be the original moisture content of the wood (2) with bark (1), which is lost after high frequency heating.

Page 9 200426014 V. Description of the invention (7) 2. Infusion of wood with bark (1) with phenolic resin (2) ·· · ① 1,000 g of phenol is heated to 40 ~ 50 ° C in a reaction furnace After it melts, 167 g of 4% sodium hydroxide solution is added slowly, and after reaction for about 10 minutes, 1 625 g of 37% aqueous formaldehyde solution is added, and the reaction furnace is heated to between 90 and 95 ° C. After 30 minutes, cool to room temperature, add water to adjust the viscosity to 200 ～ 80 cps for backup (but do not make the solid content less than 30%), that is, the maximum amount of water added cannot exceed the reaction solution [solid content 55%] 80% by weight. ② The phenolic resin prepared in the procedure ① is poured into wood (of) with bark (1) by vacuum high pressure infusion. First place the wood (2) with the bark (1) in the filling, filling and filling device (4), and use a vacuum machine (3) to pump the inside of the filling container (4) to less than one atmosphere pressure [76 0mm-Hg ] ~ 3mm-Hg [preferably 50mm-Hg] vacuum, and then inject resin through the injection port (4 1) 'Finally increase the resin infusion pressure to 1 K g / c m2 ~ 4 0 K g / cm2 [most It is preferably 35Kg / cm2], and maintained at this pressure for at least 30 minutes. Following the excess resin in the pouring container (4), the vacuum machine (3) is evacuated to less than one atmosphere pressure [76〇mm_Hg] ~ 3mm. Between one Hg (preferably 50mm-Hg), and finally take out the wood (2) with bark (1) after the step of vacuuming again, and take out the wood (2) with bark (1) Residual liquid on the surface is not obvious [no drooping]. ③ After pouring the wood (2) with bark (1), it is dried at room temperature for 3 days, then heated to 80 ° C or more with high frequency [external infrared temperature measurement] to cure the resin, and then dried at room temperature 4 After 8 hours, a fire-resistant, increased-strength wood (2) with bark (1) appears. Due to the invention, the resin is injected into the wood with bark in a vacuum and high pressure manner.

Page ί 2004200414 V. Description of the invention (8) " The material 'fills the resin with the bark pores, gaps between the bark and the gap between the bark and the wood' and passes through the pressure heating process to harden the resin and make the bark It is completely adhered and fixed with wood, and will not be stripped from the wood because it cannot get nutrients and water after the tree is sawed off, so that the bark is no longer a waste, and can be fully utilized. According to this, the bark-containing wood is produced in the same state as the surface of living trees, so as to increase the decoration effect of the park, indoor and outdoor, and the natural landscape of the garden. In addition, in the process of plasticizing the bark, the resin used must be fluid, and it can polymerize in the bark [wood]. It is better to have glue with the bark or wood, so the plastic used Resin of bark _ can be used in wood mixtures with years of R & D history, such as phenolic resin, urea resin, melamine resin, resorcinol resin, polyvinyl acetate emulsion resin, etc., even acrylic monomer, acrylic acid and formic acid Monomers can be used as long as the resin can be impregnated or injected into the bark and then hardened. Others such as natural resin [Varnish], bitumen [Bituminous], alkyd resin [Alkyd], amino resin [Amino Resin], nitro [ Nitrocellulose], Chlorinated PVC, PVAC [Poly vinyl Acetate], Acrylic Resin [Acryiic], various polyacids [p〇lyester], epoxy resin '[Epoxide], polyurethane resin [p〇lyurethane ], Rubber, polyamide resin [Polyamide Rosin], etc. and its modified or composite resin, as long as the resin type has There are materials that can produce cohesion between the bark and wood to achieve the performance of not bark, can be used to make strengthened bark.

Page 11 200426014 V. Description of the invention (9)

II In summary, the embodiments of the present invention can indeed achieve the expected use effect, and the specific structure disclosed is not only not seen in similar products, nor has it been disclosed before the application. It has fully complied with the patent law. Regulations and requirements, applying for an invention patent in accordance with the law, and begging for approval and granting the patent, it is a matter of convenience. 〇

Page 12 200426014 Brief description of the drawings [Simplified description of the drawings] 1 The first picture: the production flow chart of the present invention. The second picture: the production implementation diagram of the present invention. The third picture: the bark wood used by the present invention. Sectional view of the fourth figure ·· It is a sectional view of the wood with bark of the present invention after being filled with resin and cured [refer to the drawing number] Wood pouring container

Bark vacuum machine inlet

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Claims (1)

200426014 VI. Scope of patent application, 1. A method for manufacturing strengthened bark logs, which first puts the wood with bark into a pouring container, evacuates the inside of the pouring container, and then injects resin into the pouring container, and Pressurize and maintain it under this pressure for 30 minutes. Then release the excess resin in the pouring container and evacuate the pouring container again. Then remove the wood with bark and dry it at room temperature for three minutes. The cycle is heated to more than 80 ° C, the resin is cured, and finally dried at room temperature for 48 hours, it will be a fire-resistant, increased strength wood with bark. 2. The method for manufacturing a strengthened bark log as described in item l of the patent application scope, wherein the vacuum degree of the inside of the pouring container is between less than one Φ atmospheric pressure [76 0 mm-Hg] and 3 mm-Hg. 3. The method of strengthening a tree i: a log as described in item 1 of the scope of the patent application, wherein the pouring pressure of the resin injected from the injection port of the pouring container is 1 Kg / cm2 to 40 Kg / cm2. 4 · The method for manufacturing strengthened bark logs as described in item 1 of the scope of the patent application, wherein the wood with bark after three days of drying at room temperature can be heated by high frequency, air-dried, and dried. Used to cure resin in wood with bark. 5. The method for manufacturing strengthened bark logs as described in item 1 of the scope of patent application, wherein the amount of resin infused is between 30% and 120% of the weight of the wood with bark. 6 · The method for manufacturing a strengthened bark log as described in the scope of claims 1, 3, 4, or 5, wherein the resin is a melamine resin. Page 14 200426014 VI. Patent Application Range i 9 7 · The manufacturing method of strengthened bark logs as described in item 6 of the patent application range, wherein the process of the Memantine resin is: 25% Og 37% low methanol Formaldehyde aqueous solution was placed in a reaction furnace, and the pH was adjusted to 8-9 with 2N NaOH aqueous solution, 189Og of melamine was added, and the reaction solution was heated to boiling [between 80-95 ° C], and the boiling temperature was maintained at about 10 minutes: Start sampling and check the hydration ratio of the reaction solution after the clock [Dutch DSM method]. When the hydration ratio reaches between 1.5 and 5, the reaction solution is cooled to room temperature, and the pH is adjusted to 9.2 to 9 with 2N NaOH. Between 4 and finally diluted with water to a resin content of 40 ~ 55% solids' resin viscosity is controlled between 10 ~ 80 cp: s, but the resin liquid should be kept clear and transparent. 8 · The method for manufacturing strengthened bark logs as described in item 6 of the scope of the patent application, wherein the melamine to formaldehyde molar ratio of the melamine resin during synthesis can be from 1: 1 to 1: 3. 9. The method for manufacturing strengthened bark logs as described in item 6 of the scope of the patent application, wherein the melamine resin can be mixed with melamine and urea, and then copolymerized with formaldehyde, and the molar ratio of melamine to urea is 3: 1 To 14 ^, and the molar ratio of the mixture of cyanamide and urea to formazan is between 丄 · i and 1: 3. _ r 馆 i?: Strengthen the system of bark logs as described in the scope of patent application for item 1, item 3, item 4 or item 5 _ ..x ^ Brother tree month b. Method, in which the resin is Panjun 1 1 · IW method for strengthening bark logs as described in item # 1 of the scope of patent application] Bu Yi, Sheng Shi, 4 · # · ®1 U, where ... . ^ ^ ^ ^ Shuzhi's process is: heating 100Og of phenol in a reaction furnace to between 40 ~ 50 ° c, to the basin, pour point%, ~ ~ 'After it melts, slowly add 200426014 6. Application Patent range 167g of 42% sodium hydroxide solution. After reaction for about 10 minutes, add 1 625g of 37% formaldehyde aqueous solution. The reaction furnace is heated to 90 ~ 95 ° C, and cooled to about 30 minutes. At room temperature, add water to adjust the viscosity to 20 ~ 8 Ocps. [However, the solid content should not be less than 30%], that is, the maximum amount of water should not exceed 80% by weight of the reaction solution [about 55% solid content]. Item 3, item 4 or item 1, wherein the resin is natural 1 2 · Resin for manufacturing a method of strengthening bark logs as described in item 1 of item 5 of the patent application scope. Item 3, item 4 or item 1, where the resin is bitumen 1 3 · According to the method for manufacturing bark logs as described in item 1 of item 5 of the scope of patent application, the acid or amino group or the alcohol or ammonia or nitrate item is the item The term is 4 fat, 4 fat, 4 fat, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree, tree Item Law 1 Party 1 Party 1 Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party 1st Party First Party Transformation • Strong • Strong • Strong 4 narrative 5 narrative 6 narrative 1 1 place. 1 Item Fat Item Fat Item 5 Tree 5 Tree 5. Page 16 200426014 VI. Scope of patent application The method for manufacturing strengthened bark logs as described in item 5, wherein the resin is gaseous ethylene. 19-The method for manufacturing a strengthened bark log as described in claim 1, 3, 4, or 5, wherein the resin is a moronic acid resin. 20-The method for manufacturing a strengthened bark log as described in claim 1, 3, 4, or 5, wherein the resin is various polyesters. 21 · The method for manufacturing a strengthened bark log as described in the scope of claims 1, 3, 4, or 5, wherein the resin is an epoxy resin. 22. The method for manufacturing a strengthened bark log as described in claim 1, 3, 4, or 5, wherein the resin is a polyurethane resin. 2 3 · The method for manufacturing a reinforced bark log as described in item 1, 3, 4 or 5 of the scope of patent application, wherein the resin is rubber 02. · If the scope of patent application is item 1, The method for producing a strengthened bark log according to item 3, item 4 or item 5, wherein the resin is a polyamide resin. I Page 17