CN104275724A - Manufacturing method of thermosetting plastic veneer bamboo bundle curtain board - Google Patents
Manufacturing method of thermosetting plastic veneer bamboo bundle curtain board Download PDFInfo
- Publication number
- CN104275724A CN104275724A CN201310283772.6A CN201310283772A CN104275724A CN 104275724 A CN104275724 A CN 104275724A CN 201310283772 A CN201310283772 A CN 201310283772A CN 104275724 A CN104275724 A CN 104275724A
- Authority
- CN
- China
- Prior art keywords
- bamboo bundle
- adhesive
- bamboo
- thermosetting plastic
- thermosetting plastics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention belongs to the field of artificial bamboo boards in artificial board manufacturing, and discloses a manufacturing method of a thermosetting plastic veneer bamboo bundle curtain board. The manufacturing method is characterized by comprising the steps of carrying out adhesive dipping and adhesive squeezing on dry bamboo bundle curtains or bamboo bundle sheets in a horizontal adhesive dipping and adhesive squeezing set, and then drying the bamboo bundle curtains; carrying out single-side adhesive application on thermosetting plastic boards on an adhesive applicator, and then aging the thermosetting plastic boards till the thermosetting plastic boards are not sticky; forming the bamboo bundle curtains into core layers with adjacent layers perpendicular or parallel to each other, and forming a symmetrical composite slab with the thermosetting plastic boards as the surface layer; forming the thermosetting plastic veneer bamboo bundle curtain board in an adhesive bonding mode according to the two-segment type hot-hot process or cold-hot-cold process for one-time hot pressing veneer forming. The manufacturing method has the advantages that the process is simple, the adhesive consumption and the energy consumption are small, the strength of the board is high, and the physical and chemical performance of the board surface is good.
Description
Technical field the invention belongs to the artificial bamboo board field in wood-based plate manufacture.
The current domestic facing artificial bamboo board of background technology mainly contains thin bamboo strips used for weaving curtain plywood form and Recombined bamboo floor.The finishing material of thin bamboo strips used for weaving curtain plywood form mainly contains bamboo mat+impregnated paper; Veneer+impregnated paper and thermosetting plastics plate, " finishing process is different because of finishing material, such as bamboo mat+impregnated paper; Veneer+impregnated paper, this two classes finishing material be all the shaping cold-hot-cold gluing technique of employing hot pressing decoration surface, it makes sandwich layer with thin bamboo strips used for weaving curtain, internal layer made by bamboo mat (or veneer), impregnated paper is combined into slab as top layer, in hot press, then adopt cold-hot-cold gluing technique facing to become plate; And thermosetting plastics plate is as the finishing material of thin bamboo strips used for weaving curtain plywood form, then adopt the technique that secondary hot pressing facing is shaping, it is that thin bamboo strips used for weaving curtain is combined into slab, hot-press gluing becomes base material, after to base material sanding and gluing, again with thermosetting plastics plate assembly, become decorative board by second time hot-press gluing.The facing on Recombined bamboo floor is then after composing base material, adopts repeatedly the method for brushing paint to carry out facing, is referred to as to cover with paint, lacquer, colour wash, etc. process.Cold-hot-cold gluing technique that hot pressing decoration surface is shaping, its technique is simple, but due to the deficiency of finishing material itself, make the outward appearance of veneer products and physicochemical property poor; The " finishing process that secondary hot pressing facing is shaping, the outward appearance of product and good physical and chemical properties, thickness is accurate, but complex process, production cost is high.As for the covering with paint process on Recombined bamboo floor, product surface wear-resisting, resistance to water is poor, generally only can use in room conditions.
Deficiency and the own performance shortcomings of finishing material such as bamboo mat+impregnated paper, veneer+impregnated paper of secondary hot pressing facing moulding process is adopted in order to overcome thermosetting plastics facing thin bamboo strips used for weaving curtain plate material, invent with bamboo bundle curtain as sandwich layer, be that skin combined becomes slab with thermosetting plastics plate, carry out the technique of the shaping two-part heat-hot glue hard board of hot pressing decoration surface, thus reach the object of plate face physicochemical property, presentation quality and the reduction facing cost improving bamboo bundle curtain plate material.
Plastic squeeze that dry bamboo bundle curtain (or bamboo bundle sheet)---is carried out impregnation in plastic squeeze unit---at horizontal impregnation by summary of the invention, carries out drying thereafter; Thermosetting plastics plate is carried out single spreading on glue spreader, and ageing is thereafter to tack-free; Then bamboo bundle curtain (or bamboo bundle sheet) is combined into the sandwich layer that adjacent layer is vertically mutual or be parallel to each other, with thermosetting plastics plate for top layer forms symmetric facing slab, two-part heat-the thermal process adopting hot pressing decoration surface shaping again or cold-hot-cold technique compose decorative board, are finally carried out close heap pressurized treatments and cutting edge and edge sealing and process.
Described by bamboo bundle curtain (or bamboo bundle sheet) at horizontal impregnation---carry out impregnation-plastic squeeze in plastic squeeze unit, adhesive used is the low concentration (28 ~ 38%) after being diluted with water, low viscous water-soluble phenolic resin adhesive, the operation sequence of impregnation-plastic squeeze is laid on hole slot pallet by bamboo bundle curtain, hung in after steeping vat carries out horizontal impregnation 6 ~ 8min with single-beam lifting, be lifted in plastic squeeze groove again, to be transported on individual layer in pressure type gelatin extrusion machine by the chain conveyer under plastic squeeze groove, 8 ~ 12min is extruded under 5 ~ 7Mpa pressure, unnecessary glue is squeezed out, and be back in steeping vat, to reduce the drying time after impregnation resin content and impregnation.
Described thermosetting plastics plate carries out single spreading on glue spreader, and adhesive used is the high concentration (60 ~ 70%) after adding filler, full-bodied phenolic resin glue, and resin application methods is single spreading, and glue-spread is 250 ~ 400g/m
2, do not carry out drying after gluing, only carry out the edge-on ageing of lattice to tack-free.
The shaping two-part heat-thermal process of a described hot pressing decoration surface is under temperature is 120 ° ~ 130 ° conditions, and adopt first high pressure, two sections of pressuring methods of rear low pressure, the corresponding relation of its pressure and time is as follows:
After hot pressing ejecting plate, by decorative board Mi Dui and stacking 1 ~ 2 day of pressurizeing, make the waste heat of sheet material utilization itself to improve the resistance to water of sheet material and to prevent the distortion warpage of sheet material.Manufacture method of the present invention has that technique is simple, glue consumption is few, energy consumption is low, timber intensity is high and the advantage of plate face good physical and chemical properties.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of thermosetting plastics facing bamboo bundle curtain plate material
In figure, 1 is the thermosetting plastics plate after single spreading (inner side) ageing;
2 is impregnation dried rift grain bamboo bundle curtains (or bamboo bundle sheet);
3 is impregnation dried band bamboo bundle curtains (or bamboo bundle sheet).
Detailed description of the invention:
Now for three layers and sandwich layer and thermosetting plastics plate that orthogonal bamboo bundle curtain (or bamboo bundle sheet) forms are that the facing slab that skin combined becomes illustrates it.
1, purchase or process bamboo bundle curtain (or bamboo bundle sheet) and be dried to moisture content 10 ~ 14%;
2, at horizontal impregnation---in plastic squeeze unit, bamboo bundle curtain (or bamboo bundle sheet) is laid on hole slot pallet, its stacking height is about about 80cm, be suspended in steeping vat with single-beam lifting and become flat sleeping state, impregnation concentrations is the water-soluble phenolic resin adhesive of 28 ~ 38%, impregnation 6 ~ 8min, hang in plastic squeeze groove again, plastic squeeze groove to be transported on individual layer in pressure type gelatin extrusion machine by chain conveyer, under 5 ~ 7Mpa pressure, extrude 8 ~ 12min, unnecessary glue is squeezed out and is back in steeping vat.And then with chain conveyer, plastic squeeze groove is transported to origin-location, and hung out plastic squeeze groove with single-beam lifting, finally deliver to drying machine and carry out being dried to moisture content 8 ~ 12%.
3, on four rollers glue spreader, by 2 face-to-face overlapping feeds of thermosetting plastics plate, make its back side roller coat high concentration (60 ~ 70%), full-bodied water-soluble phenolic resin adhesive, glue-spread is 250 ~ 400g/m
2, after gluing, lattice is edge-on is placed on fence type ageing frame, and ageing is to tack-free.
4, the facing slab of 12mm thickness of slab is become by accompanying drawing 1 assembly, then in multi-daylight press, adopt two-part heat-thermal process that hot pressing decoration surface is shaping, compose thermosetting plastics facing bamboo bundle curtain plate material, concrete technology is as follows: hot pressing temperature is 120 ° ~ 130 °, and each section of pressure of two-part heat-thermal process and the corresponding relation of time are by operating as follows:
After hot pressing ejecting plate, by overlapping for thermosetting plastics facing bamboo bundle curtain plate material pile, and weighting material pressurizes 1 ~ 2 day thereon.
5, by given size, cutting edge and edge sealing process are carried out to burr plate.
Claims (3)
1. the manufacture method of thermosetting plastics facing bamboo bundle curtain plate material, its feature is as follows: dry bamboo bundle curtain (or bamboo bundle sheet)---is carried out impregnation in plastic squeeze unit---at horizontal impregnation plastic squeeze, carries out drying thereafter; Thermosetting plastics plate is carried out single spreading on glue spreader, and ageing is thereafter to tack-free; Then bamboo bundle curtain (or bamboo bundle sheet) is combined into the sandwich layer that adjacent layer is vertically mutual or be parallel to each other, with thermosetting plastics plate for top layer forms symmetric facing slab, adopt hot pressing decoration surface shaping again two-part heat---thermal process or cold-hot-cold technique compose decorative board, finally carried out close heap pressurized treatments and cutting edge, edge sealing processing.
2. according to claim 1 in thermosetting plastics facing bamboo bundle curtain manufacturing method of plate thereof, by bamboo bundle curtain (or bamboo bundle sheet)---impregnation carried out in plastic squeeze unit---plastic squeeze and thermosetting plastics plate is carried out single spreading on glue spreader at horizontal impregnation, it is characterized in that: impregnation and gluing adhesive used are water-soluble phenolic resin adhesive, what its difference was that bamboo bundle curtain (or bamboo bundle sheet) soaks is low concentration (28 ~ 38%) after being diluted with water, low viscosity phenolic resin glue, its method is at horizontal impregnation---in plastic squeeze unit, after first carrying out horizontal impregnation 6 ~ 8min in steeping vat, be lifted in plastic squeeze groove again, to be transported on individual layer in pressure type gelatin extrusion machine by chain conveyer, 8 ~ 12min is extruded under 5 ~ 7Mpa pressure, unnecessary glue is squeezed out and is back to steeping vat, thermosetting plastics plate single spreading adhesive used is high concentration (60 ~ 70%), high viscosity phenolic resin glue after adding filler, and the single spreading then carried out on glue spreader, glue-spread is 250 ~ 400g/m
2, moist after gluing, only carry out the edge-on ageing of lattice to tack-free.
3. in the manufacture method of thermosetting plastics facing bamboo bundle curtain plate material according to claim 1, adopt hot pressing decoration surface shaping two-part heat---thermal process composes decorative board, and close heap pressurized treatments, it is characterized in that: under temperature 120 ~ 130 DEG C of conditions, adopt two sections of pressuring methods of first high pressure, rear low pressure, each section of pressure and the corresponding relation of time are by operating as follows:
Described to carry out close heap pressurized treatments be after hot pressing ejecting plate, by decorative board Mi Dui and stacking 1 ~ 2 day of pressurizeing, to improve the resistance to water of sheet material and to prevent the buckling deformation of sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283772.6A CN104275724A (en) | 2013-07-08 | 2013-07-08 | Manufacturing method of thermosetting plastic veneer bamboo bundle curtain board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310283772.6A CN104275724A (en) | 2013-07-08 | 2013-07-08 | Manufacturing method of thermosetting plastic veneer bamboo bundle curtain board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104275724A true CN104275724A (en) | 2015-01-14 |
Family
ID=52251307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310283772.6A Pending CN104275724A (en) | 2013-07-08 | 2013-07-08 | Manufacturing method of thermosetting plastic veneer bamboo bundle curtain board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104275724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182213A (en) * | 2016-08-22 | 2016-12-07 | 益阳桃花江竹业发展有限公司 | A kind of production method of building concrete Bamboo Formwork |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182213A (en) * | 2016-08-22 | 2016-12-07 | 益阳桃花江竹业发展有限公司 | A kind of production method of building concrete Bamboo Formwork |
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Application publication date: 20150114 |