CN105500810A - Composite board and manufacturing method thereof - Google Patents
Composite board and manufacturing method thereof Download PDFInfo
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- CN105500810A CN105500810A CN201610061531.0A CN201610061531A CN105500810A CN 105500810 A CN105500810 A CN 105500810A CN 201610061531 A CN201610061531 A CN 201610061531A CN 105500810 A CN105500810 A CN 105500810A
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- tea stalk
- composite board
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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
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/1284—Application of adhesive
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0024—Crushing
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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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
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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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/06—Vegetal particles
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
Abstract
The invention discloses a composite board and a manufacturing method thereof. The composite board comprises a board body; the board body comprises tea stem particles and a binding agent which are mixed according to a predetermined ratio; through the binding agent, the tea stem particles are bonded together to form the board body with the predetermined shape. The composite board provided by the embodiment of the invention is high in structural strength, safe and environmentally friendly.
Description
Technical field
The present invention relates to a kind of composite board and preparation method thereof.
Background technology
Along with expanding economy, in the production process of wood-based plate, the demand of people to flakeboard is increasing, and the enterprise producing this sheet material also increases year by year.But along with various countries strengthen gradually to the protection of environment and the forest reserves, the wood raw material causing flakeboard used lacks day by day.
Simultaneously along with the raising of health of people consciousness, indoor environment consciousness and quality of life consciousness, the contaminated air that volatile organic contaminant in wood-based plate causes, the problem that impairs one's health more and more is subject to people's attention, in China, after " coal smoke type ", " photochemical fog type " pollute, modern is just falling into and is polluting period in the take " room air pollution " as mark the 3rd.
This volatile organic contaminant brings degradation various diseases under chronic respiratory disease, allergic rhinitis, immunologic function to the mankind.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, first aspect present invention is to propose a kind of composite board, has higher structural strength and safety and environmental protection.
Second aspect present invention is the preparation method proposing a kind of composite board.
The composite board of embodiment according to a first aspect of the present invention, described composite board comprises plate body, described plate body comprises the tea stalk particle and binding agent that mix by predetermined ratio, and the tea stalk particles stick of described tea stalk particle is formed the described plate body with predetermined shape by described binding agent together.
According to the composite board of the embodiment of the present invention, the high and safety and environmental protection of structural strength.
In addition, composite board according to the above embodiment of the present invention, can also have following additional technical characteristic:
In some embodiments of the invention, the grain graininess of described tea stalk particle is not less than 60 orders.
In some embodiments of the invention, the humidity of described tea stalk particle is in the scope of 5% to 8%.
In some embodiments of the invention, the resin added of described binding agent and the weight ratio of described tea stalk particle are in the scope of 5% to 7%.
In some embodiments of the invention, the resin added of described binding agent and the weight ratio of described tea stalk particle are 5%.
In some embodiments of the invention, described binding agent is isocyanate glue.
In some embodiments of the invention, described plate body is tabular, and described composite board comprises one deck or arranged stacked and by plate body described in the gluing multilayer be connected together of finger.
The preparation method of the composite board of embodiment according to a second aspect of the present invention, described method comprises: carry out pulverizing to the tea stalk with the first predetermined moisture and form tea stalk particle; The drying of tea stalk particle is made its humidity be the second predetermined moisture and filters out the tea stalk particle particle with preliminary dimension, by after drying and the tea stalk particle with preliminary dimension to mix with binding agent and mat formation into predetermined shape; Rear compacting of having mated formation forms described plate body, and wherein, described first predetermined moisture is less than described second predetermined moisture.
According to the preparation method of the composite board of the embodiment of the present invention, the utilization rate of material can be improved, and reduce fabrication cycle.
In some embodiments of the invention, described first predetermined moisture is in the scope of 20% to 30%, and described second predetermined moisture is in the scope of 5% to 8%.
In some embodiments of the invention, the method for tea stalk screening comprises: after having pulverized, and adopts size to screen tea stalk particle to the sieve within the scope of 80 orders at 60 orders, chooses the tea stalk that sieve retains.
In some embodiments of the invention, described compressing method comprises: mated formation and first carried out pre-molding with preformer with the first predetermined pressure in 2.8Mpa to 3.1Mpa scope afterwards, then put into hot press and carry out hot pressing with the second predetermined pressure of 18.5Mpa to 20Mpa scope at the temperature of 140 DEG C to 155 DEG C.
In some embodiments of the invention, described hot pressing comprises: make hot press Output pressure to the second predetermined pressure 90% and maintained for first scheduled time, then promote hot press pressure to the second predetermined pressure and kept for second scheduled time, wherein, first scheduled time, described second scheduled time was in the scope of 4 minutes to 5 minutes in the scope of 20 seconds to 35 seconds.
In some embodiments of the invention, plate body described in the multilayer of described composite board arranged stacked, and described plate body is tabular, the preparation method of described composite board also comprises: the surface of the plate body burnished and fabricated also applies finger glue after polishing completes, and the coated weight of described finger glue is at 140g/m
2to 160g/m
2scope in; The plate body of coating finger glue is spliced and puts into preformer with the pressure precompressed 12 hours to 16 hours of 2Mpa to 2.3Mpa.
Accompanying drawing explanation
Fig. 1 to Fig. 4 is the composite board of the several different embodiment of the present invention respectively.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Along with expanding economy, in the production process of wood-based plate, the demand of people to flakeboard is increasing, and the enterprise producing this sheet material also increases year by year.But along with various countries strengthen gradually to the protection of environment and the forest reserves, the wood raw material causing flakeboard used lacks day by day.
Simultaneously along with the raising of health of people consciousness, indoor environment consciousness and quality of life consciousness, the contaminated air that volatile organic contaminant in wood-based plate causes, the problem that impairs one's health more and more is subject to people's attention, in China, after " coal smoke type ", " photochemical fog type " pollute, modern is just falling into and is polluting period in the take " room air pollution " as mark the 3rd.
This volatile organic contaminant brings degradation various diseases under chronic respiratory disease, allergic rhinitis, immunologic function to the mankind.
Existing natural material uses as wood particle, bagasse, hemp stalk (wood shavings) etc., it is utilized as collection or the form of industrial wood waste with artificial board after glue mixing hot pressing, and this kind of wood-based plate is used for greatly in construction material and plate fitment manufacture, the product in people's daily life uses less.
Tea stalk is the leaf stalk of tealeaves, containing multiple aroma substance, but due to the tea drinking habit of people, usually tea stalk is abandoned need not, cause a large amount of wastes.
For this reason, first aspect present invention proposes a kind of composite board adopting tea stalk to make.
The present invention be utilize tealeaves at the residue tea stalk plucked and produce in processing as raw material by wood-based plate processing technology, adjustment material shape and pulp furnish can meet gummed that general artificial board has, hold can also to meet outside the demands such as nail that manual processing is cut, cuts, ground, saw etc. requires also to use Digit Control Machine Tool to carry out turning and milling to it.Create and enrich form more, in addition, tea stalk itself is fragrant containing tea, makes it be different from other materials, is made into product and is placed in its fragrance indoor and is full of whole environment, invigorating.
The composite board 100 of the embodiment of the present invention is described below in conjunction with accompanying drawing.
According to the composite board 100 of the embodiment of the present invention, as shown in Figure 1, described composite board 100 comprises tea stalk particle 11 and binding agent 12, and tea stalk particle 11 and binding agent 12 are by predetermined ratio mixing.Tea stalk particle 11 wherein includes discrete tea stalk particle 111, these tea stalk particles 111 can be bonded together by binding agent 12, due to the bonding effect of binding agent 12, discrete tea stalk particle 111 can be made to form as one and can have predetermined shape, and the compacting then through techniques such as hot pressing just can form plate body 1.
This plate body 1 not only make use of tea stalk, avoid or reduces the waste of resource, improves the utilization rate of resource, safety and environmental protection.In addition, tea stalk material itself has a considerable amount of wood fibre and wood fibre is the key that material forms intensity, tea stalk via binding agent 12 stirring and in hot press, carry out hot pressing, high temperature can make adhesive solidification be held tightly together by tea stalk, forms the composite board 100 of high strength.
According to the composite board 100 of the embodiment of the present invention, utilize Tea Processing residue tea stalk, generate without other additional pollutants, effectively can save timber resources, product structure rationally, function admirable, simultaneously tea stalk particle 11 plate first burst size of waking up can reach the requirement of El level, is novel environment friendly artifical board material, also the delicate fragrance of tea is had more, be conducive to people healthy, can be widely used in the fields such as construction and decoration, interior decoration, Furniture manufacture, communications and transportation, market prospects are very wide.
In actual fabrication and use procedure, can by direct for ready tea stalk glue mixing and hot pressing, the material type obtained like this is similar to particieboard, has the characteristic of artificial board, if but in the weak particle of its processing characteristics space easy generating material of polishing greatly broken., find after many experiments, by controlling the mode of particle form, make the downtrodden consolidation more of material, the space in the middle of material is little for this reason.Through experiment, the material after shaping can at the processing and fabricating product of the enterprising driving of lathe, pincers, milling, plane, the objects such as the mode craft articles also can polished by hand.
For this reason, the grain graininess of tea stalk particle 11 preferably controls be not less than 60 orders by the present invention, and the particle of such tea stalk particle 11 has optimum fibre length, can have higher structural strength.
That is, after tea stalk has been pulverized, 60 object sieves have been crossed.
Preferably, the grain graininess (in other words the granularity of tea stalk particle 111) of tea stalk particle 11 can be arranged on 60 orders within the scope of 100 objects, also can be of a size of 60 orders and to be arranged to the tea stalk particle 111 within the scope of 100 orders the skeleton of whole composite board 100, the structural strength of the composite board be made into by tea stalk can be improved so further.
Certainly, can select according to actual needs the tea stalk particle 111 of its other positions, such as, the tea stalk particle 111 on top layer is arranged to size and is less than 60 object forms, the smooth surface of tea stalk can be made like this, and increase the fineness on composite board 100 surface, greatly degree can improve the processing characteristics of composite board 100.
In manufacturing process, the humidity of tea stalk (namely moisture total amount than) can be suitably selected to tea stalk particle 11, because form bubble etc. in the plate body 1 of too high humidity easily after completing, cause the intensity of composite board 100 low, sheet material after adding easily produces the problems such as any surface finish weak effect
To this, the humidity of tea stalk particle 11 can be selected in the scope of 3% to 10%.Inventor makes shaping composite board to the tea stalk material within the scope of this and measures respectively, find through measuring, the tea stalk of humidity in 3% to 10% scope makes the structural strength of shaping composite board 100 and plasticity also has king-sized difference, such as, humidity be 10% tea stalk material make the half that tea stalk material that the structural strength of shaping composite board 100 is even 8% less than humidity makes the structural strength of shaping composite board, therefore, preferably the humidity of tea stalk is arranged to not higher than 8%.
In addition, the humidity that tea stalk material makes shaping composite board 100 is also not more low better, this is because too low humidity easily affects the cycle of processing, be unfavorable for controlling cost, and, too dry tea stalk is frangible, in the process made, the fragmentation of tea stalk particle 111 makes the grain graininess of tea stalk in the composite board 100 completed cannot reach predetermined grain graininess, destroy the granularity of tea stalk material like this, king-sized impact is had on the intensity of tea stalk, therefore, after testing repeatedly, applicant confirms the humid control of tea stalk can produce particularly preferred effect being not less than 5%.
Therefore, in the application, the humidity of tea stalk material can control in the scope of 5% to 8%, the composite board 100 that the tea stalk material of humidity within the scope of this makes has higher structural strength, and easily can control the granularity of tea stalk, not only be convenient to the production of composite board 100 and shaping, and the structural strength of composite board 100 can be improved too.
Because exceedingly applying glue may cause the structural strength of sheet material and safety and environmental protection performance to reduce, and applying glue very few also easily cause the tea stalk particle 111 of tea stalk particle 11 to arrive very much be bonded together, the intensity of composite board 100 so also may be caused to reduce.
In one embodiment of the invention, the resin added of binding agent 12 and the weight ratio of tea stalk particle 11 are in the scope of 5% to 7%, like this, the scale dimension of binding agent 12 and tea stalk particle 11 can be made to be held in an excellent scope, make the Stability Analysis of Structures of composite board 100 and intensity is high.
Preferably, the resin added of binding agent 12 and the weight ratio of tea stalk particle 11 are 5%.
In addition, with reference to Fig. 2 and Fig. 3 in some embodiments of the invention, in order to realize composite board 100, there is higher structural strength and processability, composite board 100 can be arranged to the form of multilayer, specifically, plate body 1 is arranged to there is interior composite bed 101 and external composite layer 102, external composite layer 102 is attached to the outside of interior composite bed 101, wherein, interior composite bed 101 can as the skeleton of composite board 100, and external composite layer 102 can make composite board 100 have particularly preferred processability.
In addition, the grain graininess of the tea stalk particle 11 of external composite layer 102 is less than the grain graininess of the tea stalk particle 11 of interior composite bed 101.
Preferably, the grain graininess of the tea stalk particle 11 in external composite layer 102 is not less than 10 orders, and the grain graininess of the tea stalk particle 11 of interior composite bed 101 is not less than 60 orders.
Preferably, the grain graininess of the tea stalk particle 11 in external composite layer 102 at 10 orders within the scope of 40 objects, the grain graininess of the tea stalk particle 11 of interior composite bed 101 at 60 orders within the scope of 100 objects.Like this, make interior composite bed 101 have higher structural strength, external composite layer 102 has extra high outward appearance and processability.
Further, the resin added of the binding agent 12 of interior composite bed 101 is 5% of tea stalk particle 11, and the resin added of the binding agent 12 of external composite layer 102 is 7% of tea stalk particle 11.In other words, in interior composite bed 101, binding agent 12 is 5% with the weight ratio of tea stalk particle 11; In external composite layer 102, binding agent 12 is 7% with the weight ratio of tea stalk particle 11.
Advantageously, the thickness of external composite layer 102 is in the scope of 1 millimeter to 3 millimeters.Composite board not only can be made to have higher structural strength, outward appearance and processability, but also the impact on plywood sheet structure intensity can be reduced.
The thickness of interior composite bed 101 is in the scope of 10 millimeters to 30 millimeters.Make interior composite bed 101 have higher structural strength, thus make composite board have higher structural strength.
As Fig. 2, the outer surface of interior composite bed 101 adheres to by one deck external composite layer 102, in addition, for different composite boards, in the finished surface that external composite layer also can be attached to interior composite bed 101 or appearance.
For example, referring to Fig. 3, the plane plate 1 kept flat, the upper surface layer of plate body 1 and undersurface layer are the external composite layer 102 of plate body 1, and the intermediate layer of plate body 1 is considered as the interior composite bed 101 of plate body 1.
In examples more of the present invention, in order to improve structural strength and the thickness of composite board 100, increase the range of application of composite board 100, composite board 100 of the present invention can comprise one or more plate body 1, and the number of plies of the plate body 1 of composite board 100 can be selected according to actual needs.
Specifically, as shown in Figure 4, when composite board 100 comprises multilayer plate body 1, this multilayer plate body 1 can be writing board shape, and multilayer plate body 1 arranged stacked, and finger glue 2 is applied on the surface of adjacent two-layer plate body 1, thus this multilayer plate body 1 is bonded together, then an adult is pressed into, to improve the structural strength of composite board 100.
In addition, the binding agent 12 in the present invention can be urea aldehyde fat glue, melamine fat glue, phenol-formaldehyde resin, isocyanates fat glue for adhesive, modified urea-formaldehyde fat glue, modification fat glue, and modified cyanurotriamide drinks fat glue of waking up, any one in modification isocyanate adhesive etc.
In addition, second aspect present invention also proposed the preparation method of above-mentioned composite board.The preparation method of described composite board comprises:
First, pulverizing is carried out to tea stalk material and is made into tea stalk particle, make tea stalk material have predetermined granularity,
Then, dry and filter out the tea stalk particle particle with preliminary dimension to tea stalk particle, by after drying and the tea stalk particle with preliminary dimension to mix with binding agent and mat formation into predetermined shape, be made into the model of plate body;
Finally, after plate body modelling completes, the plate body described in being formed can be suppressed by model.
Preferably, different humidity is adopted to tea stalk material when tea stalk pulverizing and hybrid adhesive, the first higher predetermined moisture is adopted in the process that tea stalk is pulverized, and after being pulverized, before hybrid adhesive or before screening, drying is carried out to tea stalk and makes it have the second predetermined humidity, wherein, the second predetermined moisture is lower than the first predetermined moisture.
The reason of adopting in this way is, easily causes tea stalk excessively to be pulverized in the tea stalk crushing process of low humidity, and that is, humidity is too low, easily causes the undersized of tea stalk particle in crushing process.In addition, when making composite, the humidity of tea stalk can not be too high, this is because the tea stalk material of high humility easily produces bubble after completing, time easy, the intensity of composite board is low or processing characteristics is low.
It is the key that material forms intensity that tea stalk material itself has a considerable amount of wood fibre and wood fibre, tea stalk via the agent of isocyanates gluing stirring and in hot press, carry out hot pressing, high temperature can make adhesive solidify to be held tightly together by tea stalk.Incipient scheme is by direct for ready tea stalk glue mixing and hot pressing, and the material type obtained like this is similar to particieboard, has the characteristic of artificial board, if but the large easy generating material fragmentation of polishing in space in the weak particle of its processing characteristics.Adopt layering to mat formation in experiment afterwards and control the mode of particle form, making the downtrodden consolidation more of material, the space in the middle of material is little.Through experiment, the material after shaping can at the processing and fabricating product of the enterprising driving of lathe, pincers, milling, plane, the objects such as the mode craft articles also can polished by hand.
The present invention is directed to existing tea stalk material application scope homogenous material added value this defect low, use modern manufacturing process to enrich the operation strategies of material, make this residue of tea stalk for people's everyday life use, increase its material added value.
In some embodiments of the invention, the first humidity is in the scope of 20% to 30%.And the second humidity is in the scope of 5% to 8%.That is, before to tea stalk material disintegrating, by the humidity regulation to 20% of tea stalk material in the scope of 30%, make tea stalk not easily broken, thus in crushing process, tea stalk material can have suitable granularity, avoids the waste of tea stalk material.
Can carry out humidification to tea stalk before to tea stalk material disintegrating (can according to actual selection to make it have comparatively suitable humidity, humidity be 20% to 30% scope in be only an embodiment), the modes such as water spray can be adopted to increase the humidity of tea stalk material.
In addition, after tea stalk has been pulverized, can dry tea stalk material with predetermined temperature, the temperature of 120 DEG C to 140 DEG C is such as adopted to dry tea stalk, preferred employing 135 DEG C is dried tea stalk, can certainly adopt other temperature, the temperature of the fiber that can't affect in tea stalk with flash baking is advisable.
The screening technique of tea stalk comprises: after tea stalk has been pulverized, and adopting size to screen tea stalk particle to the sieve within the scope of 80 orders at 60 orders, choosing the tea stalk that sieve retains, for making sheet material.
In some embodiments of the invention, plate body is arranged to have external composite layer and interior composite bed, the granularity of the tea stalk particle of interior composite bed is not less than 10 orders, and the granularity of the tea stalk particle of external composite layer is not less than 60 orders.
Preferably, the granularity of the tea stalk particle of interior composite bed at 10 orders within the scope of 40 objects, and the granularity of the tea stalk particle of external composite layer at 60 orders within the scope of 100 objects.
Specifically, the preparation method of the plate body with external composite layer and interior composite bed is comprised:
First, pulverizing is carried out to tea stalk material and is made into tea stalk particle, make tea stalk material have predetermined granularity,
Then, dry and filter out two kinds of tea stalk particle particles with preliminary dimension to tea stalk particle, by after drying and the tea stalk particle with preliminary dimension to mix with binding agent and mat formation into predetermined shape, be made into the model of plate body;
Finally, after plate body modelling completes, the plate body described in being formed can be suppressed by model.
Preferably, different humidity is adopted to tea stalk material when tea stalk pulverizing and hybrid adhesive, the first higher predetermined moisture is adopted in the process that tea stalk is pulverized, and after being pulverized, before hybrid adhesive or before screening, drying is carried out to tea stalk and makes it have the second predetermined humidity, wherein, the second predetermined moisture is lower than the first predetermined moisture.
Wherein pavement process comprises: the tea stalk particle that the granularity filtered out is little mats formation into external composite layer;
The tea stalk particle that the granularity filtered out is large mats formation into interior composite bed;
External composite layer is mated formation in the outside of described interior composite bed.
Further, in some embodiments further of the present invention, tea stalk material can be divided into two groups process respectively.
Specifically, tea stalk is divided into two groups, process respectively two groups of tea stalks: first predetermined moisture of first group controls in the scope of 15% to 25% (preferably 20%), first predetermined moisture of second group controls in the scope of 25% to 35% (preferably 30%); These two groups of tea stalks grind respectively and screened, crosses size for first group and select to the sieve within the scope of 25 orders the tea stalk particle that sieve retains at 10 orders, crossing size for second group and select sieve retains tea stalk particle to the sieve within the scope of 80 orders at 60 orders; Two groups of tea stalk particles are mixed into binding agent respectively, the binding agent of 5% admixed by first group of tea stalk particle, admixes the tea stalk particle of 7% in second group of tea stalk particle, adopts the mode of layering evenly to mat formation after stirring respectively, internal layer adopts first group to mat formation, and outer employing second group is mated formation.
In addition, the binding agent resin added of first group and second group can all in the scope of 5% to 7%.
According to some embodiments of the present invention, described compressing method comprises: mated formation and first carried out pre-molding with preformer with the first predetermined pressure in 2.8Mpa to 3.1Mpa scope afterwards, then put into hot press and carry out hot pressing with the second predetermined pressure of 18.5Mpa to 20Mpa scope at the temperature of 140 DEG C to 155 DEG C.
Further, described hot pressing comprises: make hot press Output pressure to the second predetermined pressure 90% and maintained for first scheduled time, then promote hot press pressure to the second predetermined pressure and kept for second scheduled time, wherein, first scheduled time, described second scheduled time was in the scope of 4 minutes to 5 minutes in the scope of 20 seconds to 35 seconds.
In some embodiments of the invention, plate body described in the multilayer of described composite arranged stacked, and described plate body is tabular, the preparation method of described composite board also comprises: the surface of the plate body burnished and fabricated also applies finger glue after polishing completes, and the coated weight of described finger glue is at 140g/m
2to 160g/m
2scope in; The plate body of coating finger glue is spliced and puts into preformer with the pressure precompressed 12 hours to 16 hours of 2Mpa to 2.3Mpa.
Below the molding mode of the composite board of specific embodiments more of the present invention is briefly explained.
Embodiment 1
1. raw-material preparation: collect tea stalk, tea stalk gathers the rear water spray that first carries out and processes, and after water spray, the moisture content of tea stalk material is divided between 20% to 30%.Desirable material shape and moisture content is reached through pulverizing and drying.This way can make tea stalk particle fully bond and reduce the generation in space, reaches the effect of post-production surfacing consolidation.
2. forming materials prepares: material is put into mixer stirring and be equipped with isocyanate glue as adhesive.The density of material is 0.9g/cm3, and isocyanates gluing agent resin added is 5%, puts into mould after stirring.
3. adopt layering flooring mode to be divided into layer and intermediate layer in the process of mating formation, adopt the tea stalk of different particle form to mat formation, upper layer be through twice pulverizer pulverize after particle, intermediate layer uses only through once shattering.Upper layer 1 mm of thickness of only mating formation is smooth in the hope of hot pressing rear surface.
4. forming materials: first used by material in mould 50 tons of preformers to carry out precompressed with 2.8-3.1Mpa (such as 3Mpa) pressure and make it shaping, then put into 100 tons of hot presses and carry out hot pressing with the temperature 18.5-20Mpa of 150 degree (such as 19Mpa) pressure.
The time of hot pressing is divided into two-part, first paragraph make hot press Output pressure to predetermined maximum pressure 90% and kept for 30 seconds (20-35 second between), boost in pressure keeps 5 minutes (4-5 minutes) to maximum pressure afterwards.
5. material reprocessing: the material after hot pressing is carried out craft and cut and to polish or lathe turnning and milling has reached and oneself wants form.
Embodiment 2
As different from Example 1, the tea stalk gathered is divided into two groups and carries out water spray process, after water spray, two groups of tea stalk moisture content control respectively 20% and 30%.Then pulverized in pulverizer by two groups of tea stalks, the tea stalk of 20% moisture content is pulverized and is once taken out oven dry afterwards, and the tea stalk of 30% moisture content carries out twice pulverizing post-drying.
Then screened two groups of tea stalks at about 5-8% by the moisture control of two groups of tea stalks, first group of tea stalk through once pulverizing crosses 10 mesh sieves, and second group of tea stalk after twice pulverizing crosses 60 mesh sieves.The tea stalk particle got after sifting out tiny particle on sieve is for subsequent use.Two groups of tea stalk particles are put into glue mixer respectively stir, the isocyanate glue that first group of tea stalk particle adds 5% stirs, and mats formation after second group of isocyanate glue adding 7% stirs.Adopt layering flooring mode when mating formation, the pavement thickness 1.5-3cm before top layer uses second group of tea stalk more in small, broken bits to do compacting of mating formation, the tea stalk particle that central core adopts first group of form larger carries out mating formation and decides pavement thickness according to materials demand thickness.Hot pressing is carried out after place Min layers installs.
Embodiment 3,
With above-described embodiment unlike, multiple plate body is glued together again and forms the larger composite board of thickness: the material good by hot pressing, after placing cooling, edging, wipe surface dirt and then use finger glue coated material surface with 120 order sanders polishing surfaces, coated weight is 150g/ square metre.By the upper and lower split of material coating finger glue, and put into preformer with the pressure of 2Mpa to 2.3Mpa pressure within 12 to 16 hours, make material levels fully bond.Take out the material polishing boundary gap bonded to put in storage to without packaging after clear gap vestige.
The present invention utilizes tealeaves to process same process as raw material by wood-based plate at the residue tea stalk plucked and produce in processing, adjustment material shape and pulp furnish can meet gummed that general artificial board has, hold can also to meet outside the demands such as nail that manual processing is cut, cuts, ground, saw etc. requires also to use Digit Control Machine Tool to carry out turning and milling to it.Create and enrich form more, in addition, tea stalk itself is fragrant containing tea, makes it be different from other materials, is made into product and is placed in its fragrance indoor and is full of whole environment, invigorating.
What the present invention completed meet material has satisfactory structural strength and the burst size of methanal far below existing particieboard, meets the requirement of intensity and environmental protection.Wherein, table 1 is the test result of the composite board of the application, the test result of a table 2 existing particieboard.
Table 1
Table 2
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (13)
1. a composite board, it is characterized in that, described composite board comprises plate body, and described plate body comprises the tea stalk particle and binding agent that mix by predetermined ratio, and the tea stalk particles stick of described tea stalk particle is formed the described plate body with predetermined shape by described binding agent together.
2. composite board according to claim 1, is characterized in that, the grain graininess of described tea stalk particle is not less than 60 orders.
3. composite board according to claim 1 and 2, is characterized in that, the humidity of described tea stalk particle is in the scope of 5% to 8%.
4. the composite board according to any one of claim 1-3, is characterized in that, the resin added of described binding agent and the weight ratio of described tea stalk particle are in the scope of 5% to 7%.
5. composite board according to claim 4, is characterized in that, the resin added of described binding agent and the weight ratio of described tea stalk particle are 5%.
6. the composite board according to any one of claim 1-5, is characterized in that, described binding agent is isocyanate glue.
7. the composite board according to any one of claim 1-6, is characterized in that, described plate body is tabular, and described composite board comprises one deck or arranged stacked and by plate body described in the gluing multilayer be connected together of finger.
8. the preparation method of the composite board according to any one of claim 1-7, is characterized in that, described method comprises:
Pulverizing is carried out to the tea stalk with the first predetermined moisture and forms tea stalk particle;
The drying of tea stalk particle is made its humidity be the second predetermined moisture and filters out the tea stalk particle particle with preliminary dimension, by after drying and the tea stalk particle with preliminary dimension to mix with binding agent and mat formation into predetermined shape;
Rear compacting of having mated formation forms described plate body,
Wherein, described first predetermined moisture is less than described second predetermined moisture.
9. the preparation method of composite board according to claim 8, it is characterized in that, described first predetermined moisture is in the scope of 20% to 30%, and described second predetermined moisture is in the scope of 5% to 8%.
10. the preparation method of composite board according to claim 9, is characterized in that, the method for tea stalk screening comprises: after having pulverized, and employing size is screened tea stalk particle to the sieve within the scope of 80 orders at 60 orders, chooses the tea stalk that sieve retains.
The preparation method of 11. composite boards according to claim 8, is characterized in that, described compressing method comprises:
Mat formation and first carried out pre-molding with preformer with the first predetermined pressure in 2.8Mpa to 3.1Mpa scope afterwards, then put into hot press and carry out hot pressing with the second predetermined pressure of 18.5Mpa to 20Mpa scope at the temperature of 140 DEG C to 155 DEG C.
The preparation method of 12. composite boards according to claim 11, is characterized in that, described hot pressing comprises:
Make hot press Output pressure to the second predetermined pressure 90% and maintained for first scheduled time, then promote hot press pressure to the second predetermined pressure kept for second scheduled time,
Wherein, described second scheduled time was in the scope of 4 minutes to 5 minutes in the scope of 20 seconds to 35 seconds first scheduled time.
The preparation method of 13. composite boards according to Claim 8 according to any one of-12, is characterized in that, plate body described in the multilayer that described composite board comprises arranged stacked, and described plate body is tabular, and the preparation method of described composite board also comprises:
The surface of the plate body burnished and fabricated also applies finger glue after polishing completes, and the coated weight of described finger glue is at 140g/m
2to 160g/m
2scope in;
The plate body of coating finger glue is spliced and puts into preformer with the pressure precompressed 12 hours to 16 hours of 2Mpa to 2.3Mpa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328734A (en) * | 2019-08-08 | 2019-10-15 | 贵州天优吉玛茶源建筑装饰有限公司 | A kind of tealeaves plate and its preparation method and application |
| CN113733799A (en) * | 2021-09-18 | 2021-12-03 | 上海结熙希建筑新材料有限公司 | Processing method of composite board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002321205A (en) * | 2001-04-26 | 2002-11-05 | Ito En Ltd | Manufacturing method for wood board and wood board having antibacterial activity |
| JP2004142241A (en) * | 2002-10-24 | 2004-05-20 | Ito En Ltd | Method for manufacturing woody board and antibacterial woody board |
| CN102152369A (en) * | 2011-01-14 | 2011-08-17 | 福建农林大学 | Tea stem particle board and production process thereof |
| CN102400421A (en) * | 2011-11-10 | 2012-04-04 | 福建农林大学 | Tea stalk artware and preparation method thereof |
-
2016
- 2016-01-28 CN CN201610061531.0A patent/CN105500810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002321205A (en) * | 2001-04-26 | 2002-11-05 | Ito En Ltd | Manufacturing method for wood board and wood board having antibacterial activity |
| JP2004142241A (en) * | 2002-10-24 | 2004-05-20 | Ito En Ltd | Method for manufacturing woody board and antibacterial woody board |
| CN102152369A (en) * | 2011-01-14 | 2011-08-17 | 福建农林大学 | Tea stem particle board and production process thereof |
| CN102400421A (en) * | 2011-11-10 | 2012-04-04 | 福建农林大学 | Tea stalk artware and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 上海科学技术情报研究所: "《国外农药破碎，造粒，包装机械发展状况》", 31 October 1977, 上海科学技术情报研究所出版 * |
| 张兆旺: "《中药药剂学》", 31 January 2003, 北京：中国中医药出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328734A (en) * | 2019-08-08 | 2019-10-15 | 贵州天优吉玛茶源建筑装饰有限公司 | A kind of tealeaves plate and its preparation method and application |
| CN113733799A (en) * | 2021-09-18 | 2021-12-03 | 上海结熙希建筑新材料有限公司 | Processing method of composite board |
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