CN211369242U

CN211369242U - Novel melamine paper veneer board with LVL structure

Info

Publication number: CN211369242U
Application number: CN201922010633.1U
Authority: CN
Inventors: 柯伟浩
Original assignee: Shandong Keller Lanfang Home Culture Development Co ltd
Current assignee: Shandong Keller Lanfang Home Culture Development Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-28
Anticipated expiration: 2029-11-19

Abstract

The utility model belongs to the technical field of integrated panel, concretely relates to novel panel of LVL structure melamine paper veneer, including the LVL structural layer, outwards by the LVL structural layer, in proper order with wood veneer I, wood veneer II, veneer, wood veneer II surface subsides have melamine paper. The utility model discloses use LVL wood veneer as the substrate, adopt special production technology to process the complex and form, belong to novel high-tech architectural decoration material, overcome the defect problem that traditional panel exists, the performance is excellent, stable in structure, greatly reduced the deformation warpage probability of panel. The environment-friendly floor is healthy and environment-friendly, meets the modern environment-friendly requirement, is nontoxic, tasteless, formaldehyde-free and soundproof, and can be widely applied to medical space, education space, office space, business space, home space and the like.

Description

Novel melamine paper veneer board with LVL structure

Technical Field

The utility model relates to a novel panel of LVL structure melamine paper veneer belongs to integrated panel technical field.

Background

Original interior decoration plate material: the core-board, the splint, the shaving board and the density board have short service life, are easy to get damp, peel off, mildew, fall off, crack and the like, are considered to be caused in the using process by many people, and are actually caused by building materials with low technical content. In addition, the existing plate has problems in the aspects of environmental protection, sound insulation, appearance and the like, and the using effect is poor.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the novel plate with the melamine paper veneer of the LVL structure has the advantages of stable performance, difficult deformation, high mechanical strength, scratch resistance, shock resistance, strong weather resistance, strong impact resistance, strong anti-cracking and anti-bulging capacity, low static electricity, difficult adsorption of powder dust, no toxicity, no odor and no formaldehyde.

Novel panel of LVL structure melamine paper veneer, including the LVL structural layer, outwards by the LVL structural layer, in proper order with veneer I, veneer II, veneer II surface subsides has melamine paper.

Fiber breaking grooves are punched on the upper surface and the lower surface of the LVL structural layer.

The fiber breaking grooves are distributed in a groined shape.

The depth of the fiber breaking groove is 1-5 mm.

The wood veneer II is laid and pasted for the second time, and the fiber trends of the wood veneer I and the wood veneer II form a horizontal-vertical cross type.

The LVL structure layer, the wood veneer I, the wood veneer II and the melamine paper are bonded through a small amount of aldehyde-free glue, the LVL structure layer formed by the vertical wood chips is stable, and the wood chips of the LVL structure layer can be pulled through the wood veneer I and the wood veneer II, so that the structural stability is realized, and the force applied in all directions can be borne. The upper surface and the lower surface of the LVL structure layer are subjected to fiber breaking treatment, and the fiber breaking grooves can be punched by blades perpendicular to the fiber direction of the plate or other directions, so that the growing fibers on the surface of the plate can be effectively broken, the influence of the self stress of the plate on deformation is reduced, and the deformation probability of the plate is greatly reduced. Furthermore, because the utility model discloses avoided inside powdered structures such as fibreboard, particle board, consequently with gluing volume significantly reduced, the environmental protection coefficient is high, satisfies modern environmental protection requirement.

The utility model discloses the great defect of coefficient of expansion behind powdery structures such as density board absorption moisture has still been avoided, and the moisture resistance is better.

The sound wave passes the utility model discloses the time, forms many times and strides medium propagation (air-wood veneer II-wood veneer I-LVL structural layer-veneer I-wood veneer II-air, the centre still is mingled with no aldehyde glue film), has improved the sound-insulating properties of panel greatly, and sound-insulating properties is good when making it be used for making door or wallboard, and the result of use is good.

The utility model discloses can make through following step:

drying a wood board with the thickness of 1-3 mm, uniformly coating molding glue on two sides, sequentially pasting the wood board according to a pattern assembly, and performing hot-press gluing to form an LVL (laminated veneer layer);

secondly, after cutting into blocks, uniformly coating molding glue on the front surface and the back surface of the LVL structural layer, paving a wood veneer I with the thickness of 1-2 mm on the front surface and the back surface, and performing hot-pressing molding;

taking out the double-sided sanding after the hot pressing treatment, uniformly coating molding glue on the front and back sides after sanding, paving and pasting a wood veneer II with the thickness of 1-2 mm, enabling the fiber direction of the wood veneer II and the fiber direction of the wood veneer I paved and pasted for the first time to be in a horizontal and vertical cross type, and performing hot pressing treatment again and molding after paving and pasting; the isotropy of the plate is increased, so that the plate is firmer, and the structural stability and the mechanical strength are further improved;

and fourthly, taking out the plate after the hot pressing treatment, sanding the two surfaces of the plate again, paving a layer of melamine paper after sanding is finished, placing the plate prepared in the third step on the melamine paper, paving a layer of melamine paper on the plate, and hot-pressing and molding the melamine paper on the upper surface and the lower surface of the plate.

When the moisture content of the wood is too high, the wood can be subjected to moisture discharge and shrinkage, otherwise, the wood can be subjected to moisture absorption and expansion, the moisture content difference of adjacent wood chips is not too large, the deviation of the moisture content of the wood is controlled within 2%, and the dry shrinkage stress of the wood can be effectively reduced. Therefore, in the step I, the moisture content of the dried wood is controlled to be 9.5-11%, the hot-pressing gluing temperature is 100-120 ℃, the hot-pressing pressure is 1.5-2.5 MPa, and the hot-pressing time is 60-120S.

In the second step, after the laminated veneer is cut into blocks, the roughness of the upper surface and the lower surface of the LVL structural layer can be equal to the effect after sanding, namely the veneer bonding requirement is met, the temperature of hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time can be shortened to 30-60S due to higher roughness, so that the required bonding strength can be achieved.

In the third step, the roughness Ra of the sanded glass is 30-50; the temperature of the hot pressing treatment is 100-120 ℃, the hot pressing pressure is 1.5-2.5 MPa, and the hot pressing time is 30-60S.

In the fourth step, the melamine paper is used as an outer decorative surface of the board, so that the roughness of the wood veneer II adhered with the melamine paper is not too high, the smoothness of the melamine paper is ensured, and the roughness Ra of the sanded wood veneer is 15-30; hot pressing if the temperature is too high, the resin will not flow and cure uniformly, creating tiny pores on the surface, and shortening the hot pressing time by increasing the hot pressing temperature to increase throughput has the disadvantage that the paper facer is easily bounced off and not smooth. Only under the action of proper temperature and pressure, the resin in the melamine decorative paper is melted and solidified to form a closed and compact surface, and the surface of the base material can be filled, so that the quality and the performance of the product are effectively improved, the temperature of hot pressing treatment is controlled to be 130-160 ℃, the hot pressing pressure is 1-1.2 MPa, demoulding after pressing is facilitated, the hot pressing time can be shortened, the yield is improved, the hot pressing time is 15-30S on the premise of ensuring the quality, and the production efficiency can be effectively improved.

Compared with the prior art, the utility model beneficial effect who has is:

novel panel of LVL structure melamine paper veneer, the utility model discloses can extensively be used for medical space, education space, office space, commercial space, room at home etc.. The LVL solid wood composite material is formed by processing and compounding a LVL solid wood veneer with excellent performance and stable structure serving as a base material by adopting a special production process, and has the advantages of scratch resistance, shock resistance, sound insulation, strong weather resistance, strong impact resistance, strong cracking and bulging resistance, low static electricity, difficulty in absorbing powder dust, no toxicity, no odor, no formaldehyde and the like.

In dry, cold and wet weather, the novel plate with the LVL structure melamine paper veneer has stable performance, can resist high temperature of 40-80 ℃ and low temperature of-40-60 ℃, cannot deform or soften, and can be normally used;

the surface density of the novel plate with the LVL structure melamine paper veneer is 0.8-1.2g/cm3, the building load is reduced, the weight of the building interior wall is reduced by more than 60%, and the novel plate is light and is beneficial to structural earthquake resistance.

The utility model belongs to a novel high-tech building decoration material, overcomes the defect problem that traditional panel exists. The LVL structural layer has the advantages that the performance is excellent, the structure is stable, the upper surface and the lower surface of the LVL structural layer are punched with fiber breaking grooves, the growing fibers on the surface of the plate are effectively broken, the influence of the self stress of the plate on deformation is reduced, and the deformation and warping probability of the plate is greatly reduced. Compared with common plates, the high-strength high.

The environment-friendly formaldehyde-free formaldehyde release agent is healthy and environment-friendly, has no formaldehyde release, is not added with chemical raw materials, is prepared from EO-grade environment-friendly raw materials, uses formaldehyde-free glue, has extremely low formaldehyde content which is less than or equal to 0.034mg/m³The environment-friendly coefficient is high, reaches the E0 grade (the formaldehyde release amount is less than or equal to 0.5mg/L) of the domestic standard, reaches the F4 star grade (the formaldehyde release amount is less than or equal to 0.3mg/L) of the Japanese F series, and meets the modern environment-friendly requirement. Creates a green, healthy and comfortable environment for people to study, work and live. The base material is natural plant fiber, does not contain asbestos, formaldehyde and harmful volatile pollutants, and is nontoxic and free ofAnd (4) peculiar smell.

The base material has the advantages of energy conservation and consumption reduction, light weight, low breakage rate, long service life, light installation, high construction speed, reduction of material and energy waste, reduction of the overall cost investment, reduction of the material and energy waste and the overall cost investment, full representation of resource saving benefits and obvious social and economic benefits.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. melamine paper; 2. wood veneer II; 3. a wood veneer I; 4. a fiber breaking groove; 5. and an LVL structural layer.

Detailed Description

The invention will be further described with reference to the following examples:

as shown in fig. 1, the novel plate material with the LVL structure melamine paper veneer, including the LVL structure layer 5, is outward from the LVL structure layer 5, is attached with wood veneer I3, wood veneer II2 in proper order, and the surface of wood veneer II2 is pasted with melamine paper 1.

The thickness of the LVL structural layer 5 is 12mm, the thickness of the wood veneer I3 and the thickness of the wood veneer II2 are 2mm, the thickness of the melamine paper 1 is ignored, and the overall thickness of the plate is 20 mm.

The upper and lower surfaces of the LVL structure layer 5 of this embodiment are punched with fiber-breaking grooves 4 by a punch.

The fiber breaking grooves 5 of the present embodiment are distributed in a groined shape.

The depth of the fiber breaking groove 5 in this embodiment is 2 mm.

The wood veneer II2 of this embodiment is a secondary paving, and the fiber orientation of the wood veneer I3 and the wood veneer II2 is in a horizontal-vertical cross type.

This example can be prepared by the following steps:

taking out the double-sided sanding after the hot pressing treatment, uniformly coating molding glue on the front and back sides after sanding, paving and pasting a wood veneer II with the thickness of 1-2 mm, enabling the fiber direction of the wood veneer II and the fiber direction of the wood veneer I paved and pasted for the first time to be in a horizontal and vertical cross type, and performing hot pressing treatment again and molding after paving and pasting;

In the first step, the moisture content of the dried wood is about 10%, the hot-pressing gluing temperature is 105 ℃, the hot-pressing pressure is 1.7MPa, and the hot-pressing time is 90S.

In the second step, the temperature of the hot pressing treatment is 105 ℃, the hot pressing pressure is 1.7MPa, and the hot pressing time is 45S.

In the third step, the roughness Ra after sanding is 40; the temperature of the hot pressing treatment is 105 ℃, the hot pressing pressure is 1.7MPa, and the hot pressing time is 45S.

In the fourth step, the roughness Ra of the sanded glass is 20; the hot-pressing temperature is 145 ℃, the hot-pressing pressure is 1.1MPa, and the hot-pressing time is 20S.

LVL structure veneer UV veneer novel decorative board main quality technical index:

the utility model discloses use LVL wood veneer as the substrate, adopt special production technology to process the complex and form, belong to novel high-tech architectural decoration material, overcome the defect problem that traditional panel exists, the performance is excellent, stable in structure, greatly reduced the deformation warpage probability of panel. The sound insulation board is healthy and environment-friendly, meets the modern environment-friendly requirement, is nontoxic, tasteless, formaldehyde-free and sound-proof, the sound insulation amount of the embodiment is 42-46 db, can reach 44db on average, and the sound insulation amount of common fiber boards and solid particle boards is 20-23 db and 18-22 db under the same condition. The utility model discloses the comprehensive properties is excellent, can extensively be used for medical space, education space, office space, commercial space, room at home etc..

Claims

1. The utility model provides a novel panel of LVL structure melamine paper veneer which characterized in that: the laminated veneer structure comprises an LVL structural layer (5), wherein a wood veneer I (3) and a wood veneer II (2) are sequentially attached to the LVL structural layer (5) outwards, and melamine paper (1) is attached to the surface of the wood veneer II (2).

2. The novel sheet material with the LVL structure melamine paper veneer according to claim 1, characterized in that: and fiber breaking grooves (4) are punched on the upper surface and the lower surface of the LVL structural layer (5).

3. The novel sheet material with the LVL structure melamine paper veneer according to claim 2, characterized in that: the fiber breaking grooves (4) are distributed in a groined shape.

4. The novel sheet material with the LVL structure melamine paper veneer according to claim 2, characterized in that: the depth of the fiber breaking groove (4) is 1-5 mm.

5. The novel sheet material with the LVL structure melamine paper veneer according to claim 1, characterized in that: the wood veneer II (2) is laid and pasted for the second time, and the fiber directions of the wood veneer I (3) and the wood veneer II (2) form a horizontal-vertical cross type.