CN1833840A - Method of mineralizing plant fiber and its applications - Google Patents
Method of mineralizing plant fiber and its applications Download PDFInfo
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- CN1833840A CN1833840A CN 200510055367 CN200510055367A CN1833840A CN 1833840 A CN1833840 A CN 1833840A CN 200510055367 CN200510055367 CN 200510055367 CN 200510055367 A CN200510055367 A CN 200510055367A CN 1833840 A CN1833840 A CN 1833840A
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Abstract
A method for mineralizing the plant fibers and using them to prepare building material includes such steps as preparing plant fibers from at least one of wood, palm fiber, coconut fiber, cotton stalk, bamboo, grass, nut shell and bean shell, preparing hardening agent by mixing solution with at least one of calcium carbonate, calcium chloride, calcium silicate, magnesium oxide, magnesium chloride, magnesium oxygen sulfate, zinc oxide, pearlite, carborundum and fluorspar, mixing it with said plant fibers, loading the mixture in mould, pressurizing, demoulding and solidifying.
Description
Technical field
The present invention is about a kind of method and application thereof that vegetable silk is mineralized, be meant a kind of vegetable silk that utilizes diversified vegetable material to be made into especially, and with mix with inorganic mineral material and the composite curing agent of solution, string is mineralized, and the mixture of this vegetable silk and curing agent placed in the mould, add the demoulding behind the building materials that are pressed into various bodies, and be cured manufacture method with the building materials of making various bodies.
Background technology
The processing procedure of commonly using wood wool resin plate class is after timber is whittled into wood wool, is mixed in inorganic matters such as glue class or resin and gypsum, magnesium compound or the cement to stir, add at last be pressed into tabular; Wait other worker's method relatively with the folded brick construction of tradition, it is comparatively easy to construct, and has advantages such as heat insulation property, sound absorption properties, adjustable wet; Yet, above-mentioned wood wool resin plate can produce the shortcoming that infiltration is out of shape and is caused shape to disintegrate, and its fire line, weatherability, corrosion resistance and output is neither good when long-time suction, therefore demand that can't realistic market can't obtain extensive market and accept; In addition, resin can all can produce the harm influence to environment and health because of high-temp combustion discharges toxic gas when fire takes place.
For improveing the above-mentioned wood wool resin plate of commonly using, occurring on the market with cement is solidfied material, and adds the wood cement board of small amounts of inorganic mineral substance additive in cement, to improve fire line, resistance to water, weatherability and resistance to acids and bases; Yet above-mentioned wood cement board is because of using a large amount of cement to reach the effect that body solidifies, and its fire line only relies on the fire resistance of cement itself basically, itself do not do some difficult burnings at the wood wool fiber especially and handle, so its fire line is unsatisfactory; In addition, because a large amount of cement that use, formed irregular empty capsule blocks and fills up in the time of wood wool can being stirred, and seeing through cement is media, causes heat and sound wave to transmit fast, can reduce the effect of insulation, heat insulation, sound insulation, sound-absorbing; Again because of adding a large amount of cement, cause weight to increase carrying inconvenience, be easy to generate and darken, the worry of distortion is also arranged, moreover problems such as be full of cracks and strength retrogression can take place in cement when the above high temperature of contact 1000 degree Celsius.
In addition, aspect the raw material variation, there is trial to use as the building materials raw material at present with other string beyond the wood wool; Yet the curing agent of cement class can be subjected to sugar contained in the vegetable material and lignin influence, and seriously hampers the curing phenomenon, therefore limited except the selection of its plant material, prepared product strength also can be restricted, in addition, also need additional processing to handle raw material, increase cost of manufacture; Because it is appropriate inadequately that the material set-up procedure is handled, the processing of the processes that mineralize such as the flame retardancy of vegetable silk is thorough inadequately, based on the use amount of the curing agent of cement too much and moulding, curing factor such as be difficult for, the not good event of the technology of mixed process, forming process and solidification process, can't reach requirement in light weight, that intensity is high, fire line is strong simultaneously, but therefore not reach the stage of practicability, mass production as yet.
This shows, above-mentionedly commonly use the technology that wood wool resin plate, wood cement board and vegetable silk mineralize and still have many disappearances, real non-kindhearted design, and demand urgently being improved.
This case inventor commonly uses every shortcoming that wood cement board is derived in view of above-mentioned, urgently thinks improve innovation, and after concentrating on studies through taking great pains to attain one's goal for many years, successfully researches and develops finally and finish method and the application thereof that this part mineralizes vegetable silk.
Summary of the invention
Purpose of the present invention promptly is to provide a kind of method and application thereof that vegetable silk is mineralized, seeing through makes vegetable silk have the process that mineralizes of flame retardancy, do not use cement or resin and glue class, and use the mode of the high inorganic mineral class of fire resistance as curing agent, make vegetable silk have the advantage of inorganic mineral material, and strengthen its weatherability, anti-morphotropism and fire line.
A time purpose of the present invention be to provide a kind of easy processing, light weight, thin thickness, intensity is high and its scope of application is wide, the senior building materials of stay in grade.
Another object of the present invention ties up in a kind of method and application thereof that vegetable silk is mineralized is provided, with practical value low in, regeneration timber such as timber with small diameter or work, waste wood, and string regenerations such as monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck, beans shell provide environmental disruption to drop to building materials preparation method minimum, the utilization salvage property to make building materials.
Can reach the foregoing invention purpose with method and application thereof that vegetable silk mineralizes, include vegetable material, mineral material and make the complete processing procedure that string mineralizes, the building materials of various bodies are molded into curing; Vegetable material of the present invention can be timber, monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck and beans shell etc., and wherein more than one materials cut or are ground into suitable size and are used as vegetable silk at least; Mineral material of the present invention comprises calcium carbonate, calcium chloride, calcium silicates, magnesia, magnesium chloride, sulfuric acid oxygen magnesium, zinc oxide, perlite, diamond dust and fluorite, wherein more than one materials and solution are mixed into curing agent at least, mix with above-mentioned vegetable silk again; Because the curing agent of cement class is subjected to the contained sugar of vegetable material and lignin hinders phenomenon very obvious, therefore the present invention does not adopt cement or resin and glue class, and adopt other inorganic mineral class as curing agent, the influence of sugar and lignin is dropped to minimum, can utilize the vegetable silk raw material sources and simplify the raw material processing procedure to enlarge; Mixture with this vegetable silk and curing agent places in the mould again, and exert pressure, to fashion into different shape (as tabular or column), again by the building materials of this moulding of mold separation with it curing, and string is mineralized, make these building materials manufactured goods have the characteristic and the advantage of inorganic mineral material.
Description of drawings
See also the detailed description and the accompanying drawing thereof of following relevant a preferred embodiment of the present invention, can further understand technology contents of the present invention and purpose effect thereof; The accompanying drawing of relevant this embodiment is:
The method that Fig. 1 mineralizes vegetable silk for the present invention and the flow chart of application thereof.
[figure number explanation]
1 set-up procedure
11 processing procedures
12 cut process
13 dry runs
2 mixed processes
The fire-retardant material process of 21 infiltrations
22 mixed hardening agent processes
3 forming processes
4 solidification process
The specific embodiment
See also Fig. 1, method and the application thereof that vegetable silk is mineralized provided by the present invention mainly includes the production process of vegetable material, mineral material and these building materials;
This vegetable material is to be timber, monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck and beans shell etc.;
This mineral material is to be calcium carbonate, calcium chloride, calcium silicates, magnesia, magnesium chloride, sulfuric acid oxygen magnesium, zinc oxide, perlite, diamond dust and fluorite etc.;
This production process is to comprise set-up procedure, mixed process, forming process and solidification process;
This set-up procedure is for being made into the process of vegetable silk from diversified vegetable material, comprising processing procedure, cut process and dry run;
This processing procedure is that composition unnecessary in this vegetable material is removed, this timber, owing to do not adopt cement class curing agent, it is subjected to sugar and lignin hinders influence not quite can ignore, therefore wood wool material of the present invention does not need other processing, if necessary, wood wool can be soaked in mode otherwise processed such as salt solution and calcium chloride solution; In the vegetable materials such as this monkey grass, cocoanut fiber and cotton bar because of containing unnecessary compositions such as a large amount of greases, protein, sugar part, moisture, one or more compositions should be removed, the removal method is to use promoter, remove above-mentioned unnecessary composition with centrifugation, only use its fiber to be vegetable material, yet the mode of removing grease, protein, sugar part, moisture does not limit the use centrifugation; This bamboo or reclaim disposable bamboo chopsticks to be processed into bamboo in modes such as cylinder spreadings thread or velvet-like; In addition, vegetable materials such as this draft class plant, shuck, beans shell have epithelium because of epidermis, chemical composition is difficult for being penetrated into inside, and grease, protein, sugar part are rich in its inside, can hinder subsequent treatment, hereat with rubbing or physical method such as deface, or be soaked in the chemicals removing epithelium, and see through mode such as centrifugation to remove grease, protein and sugar part; In addition, with this timber, monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck, wherein at least a above vegetable material of beans shell, with the processing of bleaching methods such as oxidized form or reduced form, to use as vegetable material; Above-mentioned processing procedure also can row processing again after cutting.
This process of cutting is that the timber vegetable silk that cuts into the following width of 3mm after the shape of chipping is used, length is controlled within 50 centimeters, if vegetable material is a cylinder type, also can after chipping, former tube periphery cut again, or wood powder is broken into the grain shape or the fractionlet of similar wood chip, the intensity that vegetable silk cuts or pulverizes, thickness and width look the building materials application target and the vegetable silk characteristic is done appropriateness adjustment; Generally speaking, the thinner building materials that obtain lightweight, high strength, high fire line, careful surface more easily of vegetable silk thickness;
This dry run is that the above-mentioned vegetable material of handling well is in addition dry again, and making its water content is below 18%, to improve the effect that fire-retardant material or incombustibe material infiltrate into this vegetable material;
This mixed process is to comprise fire-retardant material process of infiltration and mixed hardening agent process;
This permeates fire-retardant material process and is to use commercially available fire-retardant material or incombustibe material, the fire-retardant material or the incombustibe material of liquid state are directly used stoste or be diluted to the proper proportion use, solid-state fire-retardant material or incombustibe material then are dissolved in water or solvent uses, vegetable silk that again should drying is soaked in this fire-retardant material or the incombustibe material liquid, makes this vegetable silk produce flame retardancy after infiltration;
Whether this functional requirement that permeates the visual building materials of fire-retardant material process is handled this vegetable silk or is omitted in manufacturing process;
This mixed hardening agent process is with calcium carbonate, calcium chloride, calcium silicates, magnesia, magnesium chloride, sulfuric acid oxygen magnesium, zinc oxide, perlite, at least a above material and solution mix in the high inorganic mineral material of fire resistance such as diamond dust and fluorite, make the inorganic mineral curing agent, again this inorganic mineral curing agent and this vegetable silk are mixed, make this vegetable silk adhesion and plastic, and improve its fire resistance, moreover, this inorganic mineral material infiltrates into this vegetable silk inside, and at the inorganic epithelium of this vegetable silk surface formation, can be with vegetable silk by internal mineralization, and further impel vegetable silk to produce the characteristic that mineralizes;
The mineral material composition and the ratio of this inorganic mineral curing agent, the purposes of visual building materials and the state of this vegetable silk adjust;
The solution of this mineral curing agent can be water or dilutes liquid fire-retardant material or liquid incombustibe material;
Also can add a small amount of slag, cement (Portland cement, mixing Portland cement, special Portland cement), avirulence resin (water base epoxy resin system and acryl system, waterglass (being commonly called as sodium silicate), thermoplastic rubber system (being commonly called as transparent adhesive tape)), stone flour (quartz, gypsum, jade, plagioclase, pyroxene, talcum, basalt or other stone flour) or silicate mineral (magnesium silicate, alumina silicate) etc. in this mineral curing agent;
This forming process is that the mixture with this vegetable silk and curing agent places in the mould, and exerts pressure, to fashion into the building materials of different shape (as tabular or column);
This forming process can be the normal temperature pressurization, also mold heated can be carried out pressing mode and come moulding, and this process also can promote the vegetable silk tissue to produce the characteristic that mineralizes;
This solidification process be earlier with the building materials of this moulding by separating in the mould, again these building materials are placed in steam chamber or the greenhouse, make the inner redundant moisture evaporation of building materials, and allow vegetable silk and curing agent curing; It is to shorten hardening time with high temperature that building materials are placed steam chamber or greenhouse, and Yin Wendu fixes, the stay in grade of more outdoor open-air curing and homogeneous, yet, also can use outdoor open-air curing to reach solidification;
See through the process that above-mentioned vegetable silk difficulty burning process, absorbed inside inorganic mineral, surface formation inorganic mineral coating rete and vegetable silk solidify, can reach the characteristic that the vegetable silk generation is mineralized.
Embodiment one
Below according to the actual case study on implementation of one of the present invention, the method that vegetable silk is mineralized and using is described in detail:
With useless weedtree is vegetable material, is whittled into the thin slice of the about 0.2mm of thickness with the periphery of useless weedtree, is cut into the vegetable silk of the about 2.0mm of width, the about 35cm of length again, this vegetable silk drying is handled to water content about 14% again;
With incombustibe material or fire-retardant material with the water dilution after, put into this dried plant silk, make incombustibe material or fire-retardant material infiltrate this vegetable silk inside; Take out vegetable silk afterwards, this incombustibe material is mixed with curing agent, this curing agent is to be the mixture of light weight calcium carbonate, calcium chloride, magnesia, magnesium chloride and expanded perlite (volume ratio is 2: 1: 2: 1: 2); This curing agent, this incombustibe material solution mix with weight ratio with this vegetable silk at 1: 1: 1, and the state of visual this vegetable silk of this weight ratio and the purposes of building materials appropriateness are adjusted;
Again this curing agent, incombustibe material and this vegetable silk mixture are put in set specification (for example: 910 * 1820 * 12mm) mould, with this mold heated to 80 degree Celsius and pressurize 30 minutes with rapid shaping; Also can be in normal temperature pressurization making down, molding time is about 8 hours;
Be cured process with being placed in steam chamber after this building materials demoulding subsequently, temperature maintenance is about 60 degree Celsius, to promote to solidify and keep the building materials stay in grade in this steam chamber;
Can obtain having remarkable fire line, avirulence, resistance to water, corrosion resistance, resistance to acids and bases, anti-morphotropism after solidification is finished, and amount is light, intensity is high, the building materials of thin thickness.
Method and the application thereof that vegetable silk is mineralized provided by the present invention when comparing mutually with other located by prior art, has more following advantage:
1. building materials provided by the present invention have the characteristic and the advantage of inorganic mineral material, and have remarkable fire line, avirulence, resistance to water, weatherability, corrosion resistance, resistance to acids and bases and anti-morphotropism.
2. the present invention does not use cement or resin and glue class, adopt other inorganic mineral class as curing agent and change, sugar contained in the vegetable material and lignin are dropped to the influence of curing agent minimum, to enlarge available vegetable silk raw material sources and to simplify the raw material processing procedure.
3. building materials provided by the present invention and processing procedure thereof are to use diversified regrown material, with practical value low in, regeneration timber such as timber with small diameter and work, waste wood, and string regenerations such as monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck, beans shell are to make building materials, provide environmental disruption to drop to minimum, utilization waste material, and obtain the method that vegetable silk is mineralized and the application thereof of material easily.
4. light, the thin thickness of building material quality provided by the present invention, convenient in carrying and processing easily, the scope of application is wide, stay in grade, is the material that can be widely used in various indoor and outdoors decorations for.
Above-listed detailed description is specifying at one of the present invention possible embodiments, yet this embodiment is not in order to limit claim of the present invention, all do not break away from skill of the present invention spirit institute for it equivalence implement or change, for example: the specification of vegetable material, mineral material, firing-difficult matter, fire-retardant thing and usage ratio, the equivalence embodiment that processing temperature, time and mold shape and specification etc. change all should be contained in the claim of this case.
In sum, this case not only really belongs to innovation on manufacture method, and can commonly use article and promote above-mentioned multinomial effect, the legal patent of invention important document that should fully meet novelty and progressive, so file an application in accordance with the law, earnestly ask your office and check and approve this part application for a patent for invention case, to encourage invention, to feeling moral just.
Claims (14)
1, a kind of method that vegetable silk is mineralized is characterized in that, it is a kind of preparation method of the vegetable silk building materials that mineralize, and it comprises:
Timber, monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck, wherein at least a above vegetable material of beans shell are made into the set-up procedure of vegetable silk;
Calcium carbonate, calcium chloride, calcium silicates, magnesia, magnesium chloride, sulfuric acid oxygen magnesium, zinc oxide, perlite, diamond dust, wherein at least a above mineral material of fluorite and water are mixed into curing agent, and the mixed process of mixing with this vegetable silk;
The mixture of this vegetable silk and curing agent is placed in the mould, add the forming process that is pressed into building materials;
And with the solidification process after this building materials demoulding.
2, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is that at least a above composition is removed in the middle of comprising the grease that this monkey grass, cocoanut fiber and cotton bar is contained, protein, sugar part and moisture, only uses the processing procedure of its fiber as vegetable material.
3, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is to comprise this bamboo or reclaim disposable bamboo chopsticks to be processed into bamboo in cylinder spreading mode thread or velvet-like, with the processing procedure of using as vegetable material.
4, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is to comprise this draft class plant, shuck and beans shell are destroyed its surperficial epithelium with physics or chemical method, and with part central at least a above composition removal of grease, protein and sugar, with the processing procedure of using as vegetable material.
5, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is to comprise this timber, monkey grass, cocoanut fiber, cotton bar, bamboo, draft class plant, shuck, wherein at least a above vegetable material of beans shell, with oxidized form or the processing of reduced form bleaching method, with the processing procedure of using as vegetable material.
6, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is to comprise this vegetable material to be cut or be ground into the fragment of setting below the size, or cut after chipping with cylindrical shape timber periphery, or wood powder is broken into wood chip, to use as vegetable silk.
7, the method that vegetable silk is mineralized as claimed in claim 1, wherein this set-up procedure is to comprise this vegetable silk is handled with dry run.
8, the method that vegetable silk is mineralized as claimed in claim 1, wherein this mixed process is to comprise this dried vegetable silk is soaked in the liquid of aqueous fire-retardant material or dilution of fire-retardant material or dissolving, being penetrated into vegetable silk inside and making its difficult burning by fire-retardant material.
9, the method that vegetable silk is mineralized as claimed in claim 1, wherein this curing agent can add fire-retardant material or incombustibe material.
10, the method that vegetable silk is mineralized as claimed in claim 1 is wherein added wherein at least a additive of slag, cement, stone flour, silicate mineral and resin in this curing agent.
11, the method that vegetable silk is mineralized as claimed in claim 1, wherein this forming process can be carried out down or with mold heated in normal temperature.
12, the method that vegetable silk is mineralized as claimed in claim 1, wherein this solidification process be earlier with the building materials of this moulding by separating in the mould, again these building materials are placed in steam chamber or the greenhouse high temperature, make the inner redundant moisture evaporation of building materials, and allow vegetable silk and curing agent solidify.
13, a kind of application of the method that vegetable silk is mineralized, it is characterized in that: it is the building materials that manufacture by the method that vegetable silk mineralizes.
14, the application of the method that vegetable silk is mineralized as claimed in claim 13, wherein the body of these building materials and specification can be according to application target and mold shape and are changed, as cylinder, cone, tubulose, arc or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510055367 CN1833840A (en) | 2005-03-18 | 2005-03-18 | Method of mineralizing plant fiber and its applications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510055367 CN1833840A (en) | 2005-03-18 | 2005-03-18 | Method of mineralizing plant fiber and its applications |
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| CN1833840A true CN1833840A (en) | 2006-09-20 |
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| CN 200510055367 Withdrawn CN1833840A (en) | 2005-03-18 | 2005-03-18 | Method of mineralizing plant fiber and its applications |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505797A (en) * | 2011-10-27 | 2012-06-20 | 蔡祖树 | Plant fiber environment-friendly, high-strength and light-weight wall body plate |
| CN102674791A (en) * | 2011-03-18 | 2012-09-19 | 棕纤环保科技有限公司 | Sheet material made of oil palm fibres and magnesium oxide and method for producing same |
| CN102674793A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing partition plate |
| CN102674794A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing insulating plate |
| CN102674792A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing silencing plate |
| CN102691382A (en) * | 2012-05-31 | 2012-09-26 | 广州市棕宝纤维制品有限公司 | Plant fiber thermal tile with functions of fireproofing and heat insulation |
| CN103786229A (en) * | 2013-11-25 | 2014-05-14 | 东莞市德迈特隔热材料有限公司 | Method for manufacturing mineralized fiberboards |
| CN105888175A (en) * | 2016-01-22 | 2016-08-24 | 卓达新材料科技集团有限公司 | Manufacturing process for surface semi-circle wood composite insulation board |
-
2005
- 2005-03-18 CN CN 200510055367 patent/CN1833840A/en not_active Withdrawn
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674791A (en) * | 2011-03-18 | 2012-09-19 | 棕纤环保科技有限公司 | Sheet material made of oil palm fibres and magnesium oxide and method for producing same |
| CN102674791B (en) * | 2011-03-18 | 2014-10-29 | 棕纤环保科技有限公司 | Sheet material made of oil palm fibres and magnesium oxide and method for producing same |
| CN102505797B (en) * | 2011-10-27 | 2013-11-27 | 蔡祖树 | Plant fiber environment-friendly, high-strength and light-weight wall body plate |
| CN102505797A (en) * | 2011-10-27 | 2012-06-20 | 蔡祖树 | Plant fiber environment-friendly, high-strength and light-weight wall body plate |
| CN102674794A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing insulating plate |
| CN102691382A (en) * | 2012-05-31 | 2012-09-26 | 广州市棕宝纤维制品有限公司 | Plant fiber thermal tile with functions of fireproofing and heat insulation |
| CN102674794B (en) * | 2012-05-31 | 2013-11-13 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing insulating plate |
| CN102674792B (en) * | 2012-05-31 | 2013-11-13 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing silencing plate |
| CN102674793B (en) * | 2012-05-31 | 2013-11-13 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing partition plate |
| CN102674792A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing silencing plate |
| CN102674793A (en) * | 2012-05-31 | 2012-09-19 | 广州市棕宝纤维制品有限公司 | Plant fiber fireproofing partition plate |
| CN103786229A (en) * | 2013-11-25 | 2014-05-14 | 东莞市德迈特隔热材料有限公司 | Method for manufacturing mineralized fiberboards |
| CN103786229B (en) * | 2013-11-25 | 2016-08-17 | 东莞市德迈特隔热材料有限公司 | A kind of mineralized fiber plate preparation method |
| CN105888175A (en) * | 2016-01-22 | 2016-08-24 | 卓达新材料科技集团有限公司 | Manufacturing process for surface semi-circle wood composite insulation board |
| CN105888175B (en) * | 2016-01-22 | 2018-05-18 | 卓达新材料科技集团有限公司 | A kind of manufacture craft of surface half round timber composite insulation boards |
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