CN106842392B

CN106842392B - Building material plate, manufacturing method and application thereof

Info

Publication number: CN106842392B
Application number: CN201611073061.6A
Authority: CN
Inventors: 萧琇方; 陈信宏; 曾炜展; 王崇豪; 蔡爵仰; 郭俊良
Original assignee: Chi Mei Corp
Current assignee: Chi Mei Corp
Priority date: 2015-12-04
Filing date: 2016-11-29
Publication date: 2019-12-17
Anticipated expiration: 2036-11-29
Also published as: JP6549088B2; JP2017182042A; PH12016000454A1; CN106842392A; SG10201610125VA; PH12016000454B1

Abstract

The invention discloses a building material plate, a manufacturing method and application thereof. The building material plate comprises a light-transmitting substrate and a light diffusion layer, wherein the light diffusion layer is positioned on at least one surface of the light-transmitting substrate. The light diffusion layer comprises an optical material and a plurality of first light diffusion particles. The average particle diameter of the first light diffusion particles is 6-100 micrometers, and the ten-point average roughness of the light diffusion layer is 11-28 micrometers. The building material plate has the balance properties of full light transmittance and haze, practicability and privacy protection.

Description

Building material plate, manufacturing method and application thereof

Technical Field

The invention relates to a building material plate and a manufacturing method thereof and a door plate structure.

Background

Conventionally, in order to produce a building material plate having both good total light transmittance and haze and having both practicality and privacy protection, for example, a glass material is often used as a window material for doors and windows when the building material plate is used for doors and windows. However, the glass material is expensive to manufacture and heavy, so that the related manufacturers would like to develop a door and window material with lower manufacturing cost and lighter weight.

Although the building material plate developed at present has good total light transmittance, the haze is obviously insufficient, so the problem of privacy protection is easily caused in use; or the building material board has good haze, but the total light transmittance is obviously insufficient, so that the building material board has the effect of protecting the internal privacy, but lacks practical value, namely, the light cannot penetrate through the building material board to cause the phenomenon of indoor darkness, and the practical use is easy to cause inconvenience. Or, the full light transmittance and haze are excellent, but the practical applicability is insufficient. For example, wetting of surfaces with rain, i.e., penetration, is a problem in privacy protection in use. Therefore, how to make the building material plate have the balance of the total light transmittance and the haze, the practicability and the privacy protection at the same time becomes a problem to be improved in the field.

Disclosure of Invention

The invention aims to provide a building material plate, a manufacturing method and application thereof, which can enable the building material plate to simultaneously have all light transmittance and haze and balance the properties of practicability and privacy protection.

To achieve the above object, according to an embodiment of the present disclosure, a building material board is provided. The building material plate comprises a light-transmitting substrate and a light diffusion layer, wherein the light diffusion layer is positioned on at least one surface of the light-transmitting substrate. The light diffusion layer comprises an optical material and a plurality of first light diffusion particles. The first light diffusion particles have an average particle diameter of 6 to 100 [ mu ] m, and the light diffusion layer has a ten-point average roughness (Rz) of 11 to 28 [ mu ] m.

Wherein the total light transmittance of the light-transmitting substrate is 85-99%.

Wherein the first light diffusion particles are 10 to 30 parts by weight based on 100 parts by weight of the optical material.

Wherein the light diffusion layer further comprises a plurality of second light diffusion particles, and the average particle size of the second light diffusion particles is 0.5-5 micrometers (μm).

wherein the second light diffusion particles are more than 0 part by weight and 5 parts by weight or less based on 100 parts by weight of the optical material.

Wherein the second light diffusion particles comprise inorganic particles or organic particles.

wherein the second light diffusion particle comprises a bridging polymer.

The first light diffusion particles and the second light diffusion particles are made of different materials.

Wherein the second light diffusion particles are silicone resin with bridged siloxane groups.

Wherein at least one of the first light diffusion particle and the second light diffusion particle comprises a bridging polymer.

Wherein the first light diffusion particles comprise inorganic particles or organic particles.

Wherein the first light diffusion particle comprises a bridging polymer.

Wherein the bridging polymer comprises at least one of polysiloxane, polymethyl methacrylate, methyl methacrylate-styrene copolymer and polystyrene.

Wherein the first light diffusion particle comprises a bridging polymer selected from the group consisting of polystyrene, polymethyl methacrylate and methyl methacrylate-styrene copolymer.

Wherein the transparent substrate and the optical material are independently selected from a group consisting of methyl methacrylate-styrene copolymer (MS), polymethyl methacrylate (PMMA), Polystyrene (PS), acrylonitrile-styrene (AS), cyclic-polyolefin (cyclo-olefin copolymer), polyolefin copolymer, polyester, polyethylene, polypropylene, polyvinyl chloride, ionomer, and Polycarbonate (PC).

Wherein the transparent substrate is selected from the group consisting of polycarbonate, polystyrene, polymethyl methacrylate and methyl methacrylate-styrene copolymer.

Wherein, the thickness of the light diffusion layer is 0.02-0.9 relative to the thickness of the light-transmitting substrate.

Wherein the thickness of the light diffusion layer is 50-5000 microns.

Wherein, the interface between the light diffusion layer and the transparent substrate is a plane or a curved surface.

the transparent substrate has a surface, the surface is a bonding surface opposite to the transparent substrate and the light diffusion layer, and the surface roughness of the surface of the transparent substrate is 0.002-0.5 micron.

The light diffusion layer is positioned on two opposite surfaces of the light-transmitting substrate.

Wherein, the light penetration of the building material plate is 50-95%.

Wherein the haze of the building material plate is 70-99%.

wherein, the light penetration of the building material plate is 50-90%.

Wherein the haze of the building material plate is 75-99%.

Wherein the thickness of the building board is 1-20 mm (mm).

wherein the surface average roughness of the light diffusion layer is 1.5-5.5 microns.

According to an embodiment of the present disclosure, another building material plate is provided, including:

A light-transmitting substrate; and

A light diffusion layer on at least one surface of the transparent substrate, wherein the light diffusion layer comprises:

An optical material; and

A plurality of first light diffusion particles, the average particle diameter of the first light diffusion particles is 6-100 microns, wherein the surface average roughness of the light diffusion layer is 1.5-5.5 microns.

According to an embodiment of the present disclosure, a door panel for a bathroom is provided, which includes the above building material panel.

according to an embodiment of the present disclosure, there is provided a door panel structure including:

A frame body; and

a plate body, set up in this framework, this plate body includes foretell building materials board.

According to an embodiment of the present disclosure, a door panel for a kitchen is provided, which includes the above-mentioned door panel structure.

According to an embodiment of the present disclosure, a door panel for a bedroom is provided, which includes the above-mentioned door panel structure.

according to an embodiment of the present disclosure, a door panel for a conference room is provided, including the door panel structure.

According to an embodiment of the present disclosure, an office partition is provided, which includes the above-mentioned door panel structure.

According to an embodiment of the present disclosure, a method for manufacturing a building material plate is provided, including:

providing a first transparent thermoplastic resin;

Providing a light diffusion layer material, wherein the light diffusion layer material comprises:

A second transparent thermoplastic resin; and

A plurality of first light diffusion particles having an average particle diameter of 6 to 100 μm; and

Co-extruding the first transparent thermoplastic resin and the light diffusion layer material by a co-extrusion process to form a transparent substrate and a light diffusion layer of a building material plate, respectively, wherein the ten-point average roughness of the light diffusion layer is 11-28 μm.

Wherein, the light diffusion layer material forms two layers of light diffusion layers of the building material plate which are respectively positioned on two opposite surfaces of the light-transmitting substrate.

the method further comprises providing two light diffusion layer materials, wherein the two light diffusion layer materials and the first transparent thermoplastic resin are co-extruded in the co-extrusion process to respectively form a light-transmitting substrate of a building material plate and light diffusion layers positioned on two opposite surfaces of the light-transmitting substrate.

Wherein, the first transparent thermoplastic resin and the second transparent thermoplastic resin are made of the same material.

wherein, the first transparent thermoplastic resin and the second transparent thermoplastic resin are different materials.

the building material plate has the balance properties of full light transmittance and haze, practicability and privacy protection.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a schematic view of a building panel according to an embodiment of the present disclosure.

FIG. 2 is a schematic view of a building panel according to another embodiment of the present disclosure.

FIG. 3 shows a schematic view of a build plate according to yet another embodiment of the present disclosure.

FIG. 4 is a schematic view of a building panel according to yet another embodiment of the present disclosure.

FIG. 5 is a schematic view of a building panel according to a further embodiment of the present disclosure.

FIG. 6 is a schematic view of a building panel according to yet another embodiment of the present disclosure.

Fig. 7 is a schematic view illustrating a door panel structure according to an embodiment of the disclosure.

Wherein, the reference numbers:

10-60: building material board

70: door plate structure

100: light-transmitting substrate

100 a: joint surface

100 b: surface of

110: light diffusion layer

110 a: rough surface

710: frame body

720: plate body

T1, T2: thickness of

Detailed Description

The following describes in detail embodiments of the present disclosure. It should be noted, however, that the illustrated embodiments are provided for illustrative purposes only, and the scope of the present disclosure is not intended to be limited to the aspects described. This summary does not show all possible embodiments. Variations and modifications may be made to the structure as may be required for practical use without departing from the spirit and scope of the present disclosure, and other embodiments not specifically set forth in the present disclosure may also be utilized. Therefore, the description is only for describing the embodiments and not for limiting the scope of the present invention.

Fig. 1 is a schematic view of a building panel according to an embodiment of the present disclosure. As shown in fig. 1, the building board 10 includes a transparent substrate 100 and a light diffusion layer 110, wherein the light diffusion layer 110 is formed on the transparent substrate 100, for example, on at least one surface of the transparent substrate 100. The light diffusion layer 110 includes an optical material and a plurality of first light diffusion particles. The first light diffusion particles have an average particle diameter of 6 to 100 [ mu ] m, and the light diffusion layer 110 has a ten-point average roughness (Rz) of 11 to 28 [ mu ] m. In one embodiment, the light diffusion layer 110 has a square mean roughness (Rq) of 2-6 μm. In one embodiment, the maximum peak-to-valley roughness (Ry) of the light diffusion layer 110 is 16-25 μm. In one embodiment, the light diffusion layer 110 has a diffusion layer surface roughness average (Ra) of 1.5-5.5 μm.

In the embodiment, the thickness of the transparent substrate 100 is greater than 3mm, and when the thickness of the transparent substrate 100 is 3 to 4 millimeters (mm), the total light transmittance is preferably more than 85%, most preferably more than 88%, most preferably more than 90%, and most preferably more than 92%. For example, the total light transmittance of the light-transmitting substrate 100 is, for example, 85% to 99% or 90% to 99%. The light-transmitting substrate 100 preferably does not contain light-diffusing particles therein. The transparent substrate 100 is combined with the light diffusion layer 110, so that the building material plate of the present invention has better optical properties and more noble glass texture in appearance.

In the embodiment, the optical materials of the light-transmitting substrate 100 and the light diffusion layer 110 are organic resin substrates having light-transmitting properties. In an embodiment, the optical materials of the light-transmitting substrate 100 and the light diffusion layer 110 may be independently selected from a group consisting of methyl methacrylate-styrene copolymer (MS), polymethyl methacrylate (PMMA), Polystyrene (PS), acrylonitrile-styrene (AS), cyclic-polyolefin (cyclo-olefin copolymer), polyolefin copolymer (e.g., poly-4-methyl-1-pentene), polyethylene terephthalate (polyethylene terephthalate), polyolefin copolymer, polyester, polyethylene, polypropylene, polyvinyl chloride, ionomer, and Polycarbonate (PC). Among them, polycarbonate, polystyrene, polymethyl methacrylate, and methyl methacrylate-styrene copolymer are preferable. Polymethyl methacrylate and methyl methacrylate-styrene copolymer are more preferable. In one embodiment, the methyl methacrylate-styrene copolymer is a copolymer comprising methyl methacrylate monomer units and styrene monomer units, which is obtained by copolymerization of methyl methacrylate monomer and styrene monomer, and the molar weight ratio (MMA/SM) of methyl methacrylate monomer units (MMA) to styrene monomer units (SM) of the methyl methacrylate-styrene copolymer is preferably 30/70-40/60.

in one embodiment, the light diffusion layer 110 further includes a plurality of second light diffusion particles, and the average particle size of the second light diffusion particles is 0.5 to 5 μm.

In the embodiment, the light diffusion particles (the first light diffusion particles and/or the second light diffusion particles) are used to adjust the optical properties and the practicability to a balanced level to meet the industrial requirements, for example, the surface roughness and the total light transmittance can be adjusted simultaneously to meet the optical properties, and simultaneously, the practical shielding property and the penetration resistance after water removal are both achieved. The first light diffusion particles and the second light diffusion particles of the present invention are, for example, glass fine particles, barium sulfate (BaSO)₄) Calcium carbonate (CaCO)₃) And alumina (Al)₂O₃) Inorganic fine particles typified by polystyrene resin, (meth) acrylic resin, silicone resin, and the like, and organic fine particles are preferable. The organic fine particles are preferably bridged organic fine particles, and at least a part of the organic fine particles are bridged during the production process, so that the organic fine particles are not deformed during the processing of the light-transmitting resin and can be maintained in a fine particle state. That is, fine particles that do not melt in the light-transmissive resin even when heated to the molding temperature of the light-transmissive resin are preferable, and organic fine particles of a bridged (meth) acrylic resin or silicone resin are more preferable. Specific examples thereof particularly suitable are a polymer of core/shell of poly (methyl methacrylate) of polymer fine particles based on partially bridged methyl methacrylate, a polymer having a core/shell configuration comprising a rubbery vinyl polymer [ trade name Paraloid EXL-5136 manufactured by Rohm and Haas Campany, Inc. ], and a Silicone resin having a bridged siloxane group [ trade name Tospearl 120 manufactured by Toshiba Silicone Inc. ].

In an embodiment, the first light diffusion particle and the second light diffusion particle are, for example, organic materials, and may include a bridging polymer. For example, the bridging polymer may include at least one of polysiloxane, polymethyl methacrylate, methyl methacrylate-styrene copolymer, and polystyrene.

the first light diffusion particles and the second light diffusion particles are preferably made of different materials. For example, the first light diffusion particles are preferably selected from polystyrene, polymethyl methacrylate or methyl methacrylate-styrene copolymer; the second light diffusing particles are preferably selected from silicone resins having bridged siloxane groups.

In an embodiment, the first light diffusing particles have an average particle size of 6 to 100 micrometers (μm), preferably 10 to 80 μm, and particularly preferably 20 to 75 μm, more preferably 25 to 75 μm, and still more preferably 30 to 70 μm. The second light diffusion particles have an average particle diameter of 0.5 to 5 μm, preferably 0.5 to 4.5 μm, more preferably 0.5 to 4 μm, and most preferably 1 to 3.5 μm. The average particle diameter of the transparent fine particles (i.e., the first light-diffusing particles and the second light-diffusing particles) is a weight average particle diameter measured by a particle counting method, and the measuring device is a particle number of a kyowski corp. When the weight average particle size of the first light diffusing particles is less than 6 μm, sufficient light diffusibility cannot be obtained and the light emitting surface has poor light emission, and when it exceeds 100 μm, sufficient light diffusibility cannot be obtained and the surface is too rough, which affects the appearance and optical properties. Further, when the weight average particle diameter of the second light diffusing particles is less than 0.5 μm, sufficient light diffusibility cannot be obtained and the light emitting surface has poor luminescence, and when it exceeds 5 μm, sufficient light diffusibility cannot be obtained and the transparency is insufficient.

The first light diffusing particles are preferably used in an amount of 10 to 30 parts by weight, and particularly suitably 15 to 25 parts by weight, and most preferably 18 to 23 parts by weight, based on 100 parts by weight of the optical material; the second light diffusing particles are used in an amount of 0 to 5 parts by weight, and particularly preferably 1 to 4 parts by weight, and most preferably 2 to 3 parts by weight, based on 100 parts by weight of the optical material. When the amount of the first light-diffusing particles used is less than 10 parts by weight, the light-diffusing property is insufficient, and the rear object can be seen through the particles directly, which makes it impossible to maintain the internal privacy. On the other hand, when the usage amount of the first light diffusion particles exceeds 30 parts by weight, the light transmittance is reduced, so that the total light transmittance is too low, the rear body of the building material plate cannot be directly identified, and the use is inconvenient; when the usage amount of the second light diffusion particles exceeds 5 parts by weight, the light transmittance is reduced, so that the total light transmittance is too low, the rear body of the building material plate cannot be directly identified, and the use is inconvenient. In a simple aspect, the first light diffusing particles can adjust the surface roughness, and the second light diffusing particles can adjust the haze of the building material plate. However, in reality, the two light diffusing particles are correlated with each other. For example, when two light diffusion particles are added simultaneously, the optical properties of the total light transmittance and haze of the building material plate can be achieved by adjusting the addition ratio of the two light diffusion particles to be within an optimum range, and the optimum range can have practical values of both shielding property and penetration resistance after water repellent.

According to the embodiment of the invention, the building material plate has good total light transmittance and haze, has shielding property, penetration resistance after water repellency and the like, and has higher structural strength.

In an embodiment, the optical material and the transparent substrate 100 may have substantially the same refractive index.

According to the embodiment of the present disclosure, the transparent substrate 100 may not include any light diffusion particles, thereby exhibiting a transparent feeling similar to a glass material, and the haze provided by the light diffusion layer 110 may achieve the desired light shielding effect and the characteristics of water penetration resistance.

in the embodiment shown in fig. 1, a ratio (T1/T2) of the thickness T1 of the light diffusion layer 110 to the thickness T2 of the transparent substrate 100 is, for example, 0.02 to 0.9; preferably, a ratio of the thickness T1 of the light diffusion layer 110 to the thickness T2 of the light-transmitting substrate 100 is, for example, 0.05 to 0.7; more preferably, for example, 0.07 to 0.5; preferably, the concentration is, for example, 0.08 to 0.3. In the embodiment, the thickness T1 of the light diffusion layer 110 is, for example, 50 to 5000 micrometers; preferably, the thickness T1 of the light diffusion layer 110 is, for example, 100 to 3000 μm; more preferably, it is, for example, 100 to 1000 μm; preferably, it is, for example, 100 to 500 μm.

As shown in fig. 1, the light diffusion layer 110 has a rough surface 110 a. . In one embodiment, the roughness of the rough surface 110a of the light diffusion layer 110 preferably has a square average roughness (Rq) of 2 to 5.5 microns, and more preferably 2.5 to 5.3 microns. In one embodiment, the roughness average (Rz) of the rough surface 110a of the light diffusion layer 110 is preferably 11 to 28 microns, and more preferably 12 to 27 microns. In one embodiment, the maximum peak-to-valley roughness (Ry) of the rough surface 110a of the light diffusion layer 110 is preferably 17 to 24.5 microns, and more preferably 20 to 24 microns. In one embodiment, the roughness average surface roughness (Ra) of the rough surface 110a of the light diffusion layer 110 is, for example, 1.5 to 5.5 microns, preferably, 1.6 to 5 microns. In one embodiment, a hardened layer may be coated on the rough surface 110a of the light diffusion layer 110 to increase the surface hardness of the light diffusion layer 110, and the thickness of the hardened layer is, for example, 10 to 30 micrometers, preferably 10 to 20 micrometers.

in an embodiment, a bonding surface (interface)100a between the light diffusion layer 110 and the transparent substrate 100 may be a flat surface or a curved surface (curved surface), as shown in fig. 1, fig. 2 and fig. 3. In this embodiment, the bonding surface 100a between the light diffusion layer 110 and the light-transmitting substrate 100 is a plane.

As shown in fig. 1, the transparent substrate 100 has a surface 100b, and the surface 100b is opposite to a bonding surface (interface)100a between the light diffusion layer 110 and the transparent substrate 100. In one embodiment, the surface 100b has a surface roughness average (Ra value) of, for example, 0.002-0.5 μm; more preferably, for example, 0.01 to 0.3 μm; most preferably, it is, for example, 0.02 to 0.2 μm. In one embodiment, a hardened layer may be coated on the surface 100b of the transparent substrate 100 to increase the surface hardness of the transparent substrate 100. In one embodiment, the thickness of the hardened layer is, for example, 10 to 30 microns, preferably 10 to 20 microns.

In one embodiment, the hardened layer is a polymethacrylate composition containing silicon dioxide and a poly (meth) acrylate compound. In one embodiment, the poly (meth) acrylate compound is, for example: isooctyl acrylate, isooctyl acrylate-styrene copolymer, isooctyl acrylate-dimethylaminoethyl methacrylate copolymer, isooctyl acrylate-vinyl acetate copolymer, polyethyl methacrylate, polyisobutyl methacrylate, polycyclohexyl acrylate, isooctyl methacrylate, polydodecyl methacrylate, poly-octadecyl methacrylate, poly-benzyl methacrylate, poly-methyl ethoxy acrylate, poly-hydroxypropyl methacrylate, poly-dimethylaminoethyl methacrylate, and the like.

According to an embodiment of the present disclosure, the building material board has a light transmittance of 50% to 98%; preferably, the light transmittance of the building material plate is, for example, 60% to 97%; preferably, the light transmittance of the building material plate is, for example, 70 to 88%; more preferably, the light transmittance of the building material plate is, for example, 70-85%; most preferably, it is, for example, 75 to 85%. In addition, the haze of the building material plate is 70-99%; preferably, for example, 75% to 99%; preferably, for example, 70 to 90%; more preferably, for example, 80 to 90%; most preferably, it is, for example, 80 to 85%.

The optical properties of building panels vary from place to place. For example, bathroom door panels and kitchen door panels require high light transmittance to achieve penetration and space enlargement, and therefore the light transmittance is 70% to 98%; preferably, the light transmittance of the building material plate is, for example, 75% to 90%. In addition, the haze of the building material plate is 75-98%; preferably, for example, 77% to 96%; however, private spaces, such as bedroom door panels, conference room partition door panels, etc., are emphasized to protect privacy, so the light penetration is 50% to 90%; preferably, the light transmittance of the building material plate is, for example, 60% to 86%. In addition, the haze of the building material plate is 85-99%; preferably, it is, for example, 90% to 97%.

in one embodiment, a bathroom and kitchen door panel includes a building panel including a light-transmissive substrate and a single light-diffusing layer structure; in another embodiment, the door panels for bedroom and conference room compartments, office partitions (partitions), etc. comprise building boards comprising a transparent substrate and an upper and a lower light diffusion layer structure.

According to an embodiment of the present disclosure, a thickness of the building sheet is 1 to 20 millimeters (mm); preferably, the thickness of the building plate is 2-15 mm; more preferably, the thickness of the building plate is 3-10 mm; preferably, the thickness of the building board is 3 to 5 mm.

According to an embodiment of the present disclosure, the building material plates 10-30 are manufactured by co-extrusion process, for example. The method for manufacturing a building material panel may for example comprise the following steps. Providing a first transparent thermoplastic resin for forming the light-transmitting substrate 100; providing a light diffusion layer material for forming the light diffusion layer 110; and co-extruding the first transparent thermoplastic resin and the light diffusion layer material by a co-extrusion process to form the light-transmitting substrate 100 and the light diffusion layer 110 of the building material plates 10-30, respectively.

For example, the first transparent thermoplastic resin (material of the transparent substrate 100) is heated and pressed by a first pressing device (not shown) and then pressed to be pressed out; taking a second transparent thermoplastic resin (material of the light diffusion layer 110) mixed with the first light diffusion particles (average particle size is, for example, 6 to 100 micrometers) and the second light diffusion particles (average particle size is, for example, 0.5 to 5 micrometers), and extruding the mixture by a second extrusion device (not shown) at the same extrusion temperature as the first extrusion device; then, the first extrusion material of the first extrusion device and the second extrusion material of the second extrusion device are co-extruded through a multi-manifold die (not shown), so that the building material plate 10 including the light diffusion layer 110 and the transparent substrate 100 can be formed. In an embodiment, the first transparent thermoplastic resin and the second transparent thermoplastic resin may be the same material or different materials.

in other embodiments, the extrudate from the first extrusion device and the extrudate from the second extrusion device are co-extruded through a feedblock (not shown).

in other embodiments, the extrusion temperatures of the first and second extrusion devices may be different, and the discharge temperatures of the first and second extruded materials leaving the first and second extrusion devices may be the same. The discharge temperature of the first and second extrudates is 220-290 deg.C, preferably 240-270 deg.C.

FIG. 2 shows a schematic view of a building panel according to another embodiment of the present disclosure, and FIG. 3 shows a schematic view of a building panel according to yet another embodiment of the present disclosure. In the two embodiments, the same or similar elements as those in the previous embodiments are denoted by the same or similar element numbers, and the description of the same or similar elements is referred to the foregoing description, and will not be repeated herein. The difference between the two embodiments and the embodiment shown in fig. 1 is mainly that the joint surface 100a is designed to be a curved surface.

As shown in fig. 2, in the building sheet 20, the junction surface 100a of the light diffusion layer 110 and the light-transmitting substrate 100 is a curved surface recessed toward the light-transmitting substrate 100. As shown in fig. 3, in the building sheet 30, the junction surface 100a of the light diffusion layer 110 and the light-transmitting substrate 100 is a curved surface protruding toward the light diffusion layer 110.

As shown in fig. 2 to 3, in the building boards 20 and 30, the light-transmitting substrate 100 has a surface 100b, and the surface 100b is opposite to a bonding surface (interface)100a between the light diffusion layer 110 and the light-transmitting substrate 100. In one embodiment, the surface 100b has a surface roughness average (Ra value) of, for example, 0.002-0.5 μm; more preferably, for example, 0.01 to 0.3; preferably, it is, for example, 0.02 to 0.2.

FIG. 4 is a schematic view of a building panel according to yet another embodiment of the present disclosure. In this embodiment, the same or similar elements as those in the previous embodiment are denoted by the same or similar element numbers, and the description of the same or similar elements refers to the foregoing description, which is not repeated herein.

In the embodiment shown in fig. 4, the light diffusion layer 110 of the building sheet 40 is formed on two opposite surfaces (the bonding surface 100a and the surface 100b) of the light-transmitting substrate 100. In this embodiment, the light-transmitting substrate 100 and the light diffusion layer 110 have two bonding surfaces (a bonding surface 100a and a surface 100 b).

According to the present embodiment, the building material plate 40 is manufactured by co-extrusion process, for example. The manufacturing method of the building material plate 40 is substantially the same as the manufacturing method of the building material plates 10-30, and the difference is that before the co-extrusion, the second extrusion material of the second extrusion device is first subjected to a flow dividing step to form two light diffusion layers on two opposite surfaces of the transparent substrate. (ii) a Or by using a third extrusion device (not shown).

FIG. 5 is a schematic view of a building panel according to a further embodiment of the present disclosure, and FIG. 6 is a schematic view of a building panel according to yet another embodiment of the present disclosure. In the two embodiments, the same or similar elements as those in the previous embodiments are denoted by the same or similar element numbers, and the description of the same or similar elements is referred to the foregoing description, and will not be repeated herein. The difference between the two embodiments and the embodiment shown in fig. 4 is mainly that the engaging surface 100a is designed to be a curved surface.

As shown in fig. 5, in the building sheet 50, both the two light diffusion layers 110 and the two joint surfaces (the joint surface 100a and the surface 100b) of the light-transmitting substrate 100 are curved surfaces recessed toward the light-transmitting substrate 100. As shown in fig. 6, in the building board 60, two bonding surfaces (the bonding surface 100a and the surface 100b are both curved surfaces protruding toward the light diffusion layer 110) of the two light diffusion layers 110 and the light-transmitting substrate 100, in another embodiment, two bonding surfaces (the bonding surface 100a and the surface 100b) of the two light diffusion layers 110 and the light-transmitting substrate 100 may be a curved surface recessed toward the light-transmitting substrate 100 and a curved surface protruding toward the light diffusion layer 110, respectively (not shown).

Fig. 7 is a schematic view illustrating a door panel structure according to an embodiment of the disclosure. As shown in fig. 7, the door panel structure 70 includes a frame 710 and a panel 720, wherein the panel 720 is disposed in the frame 710. Plate body 720 comprises a building material plate as previously described herein.

According to the embodiment of the invention, the door plate structure manufactured by the building material plate has good total light transmittance and haze, and simultaneously has higher structural strength, so that higher safety requirement can be met.

Wherein the light diffusion layer 110 may use an ultraviolet absorber as needed. Examples of the ultraviolet absorber include benzophenone-based ultraviolet absorbers of 2,2' -dihydroxy-4-methoxybenzophenone, triazine-based ultraviolet absorbers of 2- (4, 6-diphenyl-1, 3, 5-triazine-2-substituent) -5-hexylhydroxyphenol, 2- (2H-benzotriazole-2-substituent) -4-methylphenol, 2- (2H-benzotriazole-2-substituent) -4-trioctylphenol, 2- (2H-benzotriazole-2-substituent) -4, 6-bis (1-methyl-1-phenylethyl) phenol, 2- (2H-benzotriazole-2-substituent) -4, 6-bis-tripentylphenol, 2- (5-chloro-2H-benzotriazole-2-substituent) -4-methyl-6-tert-butylphenol, 2- (5-chloro-2H-benzotriazole-2-substituent) -2, benzotriazole-based ultraviolet absorbers such as 4-tert-butylphenol and 2,2' -methylenebis [ 6- (2H-benzotriazole-2-substituent) -4- (1, 1, 3, 3-tetramethylbutyl) phenol ]. And preferably 2- (2-hydroxy-5-tolyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-3, 5-diisopropylbenzene) phenylbenzotriazole, 2- (2-hydroxy-3-tert-butyl-5-tolyl) -5-chlorobenzotriazole, 2' -methylenebis [ 4- (1, 1, 3, 3 tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol ], 2- [ 2-hydroxy-3- (3, 4, 5, 6-tetrahydrophthalimidomethyl) -5-tolyl ] benzotriazole. Among them, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole and 2,2' -methylenebis [ 4- (1, 1, 3, 3-tetramethylbutyl) -6- (2H-benzotriazole-2-substituent) phenol ] are more preferable, and the ultraviolet absorber can be used alone or in combination of two or more.

Wherein the light diffusion layer 110 may use a phosphor as necessary. The fluorescent agent is used for improving the color tone of synthetic resins and the like to white or bluish-white, such as compounds of the stilbene type, benzimidazole type, benzoxazole type, phthalimide type, rose bengal type, coumarin type, oxazole type, and the like.

wherein the light diffusion layer 110 may use an antioxidant as needed. Examples of the antioxidant include a phenol-based antioxidant, a thioether-based antioxidant, and a phosphorus-based antioxidant. Typical phenolic antioxidants include: octadecyl (3, 5-bis-tert-butyl-4-hydroxyphenyl) -propionate, triethylene glycol bis [ 3- (3-tert-butyl-5-methyl-4-hydroxyphenyl) propionate ], tetrakis [ methylene-3- (3, 5-bis-tert-butyl-4-hydroxyphenyl) propionate ] methane, 2-tert-butyl-6- (3-tert-butyl-2-hydroxy-6-methylbenzyl) -4-methylphenyl acrylate, 2,2 '-methylene-bis (4-methyl-6-tert-butylphenol), 2' -thiobis (4-methyl-6-tert-butylphenol), 2 '-thio-diethylene-bis [ 3- (3, 5-bis-tert-butyl-4-hydroxyphenyl) propionate ], 2' -ethanediamide-bis [ ethyl-3- (3, 5-bis-tert-butyl-4-hydroxyphenyl) propionate ], and the like. Representative examples of the thioether-based antioxidants include: distearylthiodipropionate, dipalmitoylthiodipropionate, pentaerythritol-tetrakis- (. beta. -dodecylmethyl-thiopropionate), dioctadecyl sulfide and the like. The phosphorus antioxidant is phosphite antioxidant or phosphate antioxidant, and the representative antioxidant is: tris (nonylphenyl) phosphite, dodecylphosphite, cyclic neopentane tetrahydronaphthylbis (octadecylphosphite), 4 '-butylidenebis (3-methyl-6-tert-butylphenyl-ditridecylphosphite), tris (2, 4-tert-butylphenyl) phosphite, tetrakis (2, 4-tert-butylphenyl) -4, 4' -biphenylene phosphate, 9, 10-dihydro-9-oxo-10-phenanthrene phosphate-10-oxolene, and the like.

The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

the evaluation items and methods are as follows.

a. Total light transmittance: measured according to JIS K-7361 using a Haze meter NDH 2000 manufactured by Nippon Denshoku industries Co., Ltd. This example uses 4mm sheet material for measurement.

b. Haze (Haze): measured according to JIS K-7361 using a Haze meter NDH 2000 manufactured by Nippon Denshoku industries Co., Ltd. This example uses 4mm sheet material for measurement.

c. Privacy-masked observation: in a 300-illumination (Lux) space, a building material plate is vertically arranged 30cm in front of human eyes, an object is taken, the object is a group of parallel lines, the line width is 5mm respectively, and the two lines are spaced by 5 mm. The object is placed at the perpendicular opposite side of the building material plate from the human eye, the object is 1cm away from the building material plate, and the direction of the object away from the building material plate and the human eye is started, and the distance between the two lines which can not be distinguished by the human eye is recorded. If the distance is less than 30cm, the diameter is O; if the length is 30 cm-60 cm, the delta is obtained; x is 60cm or more.

d. And (3) observing waterproof penetration: it was observed whether the panel penetration was affected by moisture adhesion to the surface of the panel. The building material plate is taken to be erected 30cm in front of human eyes, an object is taken, the object is a group of parallel lines, the line width is 5mm respectively, and the two lines are spaced by 5 mm. Placed on the vertically opposite side of the human eye from the building plate, the object is 5cm from the building plate. After the outer surface of the light diffusion layer (e.g., 110 in fig. 1) of the building board was wiped with a wet rag, it was visually observed from the wiped surface to determine whether two lines were clearly visible. If not, the result is O; if two lines are visible, then X.

e. surface roughness (Ra/Ry/Rq/Rz) measurement: a portable surface roughness tester SJ-210 manufactured by Sanfeng instruments was used to measure the surface roughness (Ra/Ry/Rq/Rz, etc.) of the building board by moving a probe on the SJ-210 over a range of 4 millimeters (mm).

< example 1>

100 parts by weight of a methyl methacrylate-styrene copolymer of QIMEI PM-500G and 15 parts by weight of first light diffusing particles [ polymethyl methacrylate fine particles/average particle diameter of 45 μm ] were mixed to form a light diffusing layer. On the other hand, 100 parts by weight of a methyl methacrylate-styrene copolymer (PM-500G) commercially available from Qimei was prepared as a material for molding a light-transmitting substrate (total light transmittance 92% when the material is in the form of a plate having a thickness of 3 mm). A2-layer co-extrusion forming machine is used, the temperature of a cylinder is kept to be 240-270 ℃, the temperature of a die is kept to be 250 ℃, the thickness of the light diffusion layer is formed to be 200 mu m, and therefore, a building material plate of a single-layer light diffusion layer with the whole thickness of 4mm is manufactured, the average roughness of the surface of the building material plate containing the light diffusion layer is 3.8 mu m, the average roughness of the surface of the building material plate without the light diffusion layer is 0.02 mu m, the average roughness (Rz) of ten points is 17.2 mu m, and the maximum peak-to-valley roughness (Ry) is 23.4 mu m. The items of the total light transmittance, haze and visual observation of the building material plate measured as described above are shown in table 2 below.

< example 2>

The difference from example 1 is that the light diffusion layer uses 3.5 parts by weight of second light diffusion particles [ silicone resin transparent fine particles/average particle diameter 2.0 μm ] in addition to the first diffusion particles, and the thickness of the light diffusion layer is 160 μm. The building material plate had a surface roughness average of 3.1 microns with the light diffusion layer, a surface roughness average of 0.03 microns without the light diffusion layer, a ten point roughness average (Rz) of 14.4 microns, and a maximum peak to trough roughness (Ry) of 21.0 microns.

< example 3>

Example 3 was prepared in the same manner as in example 2, but the difference from example 2 is listed in table 1. Items of the building material plate including the surface roughness values, total light transmittance, haze, and visual observation of the light diffusion layer are shown in table 2.

< example 4>

the difference from example 2 was that a 3-layer co-extrusion molding machine was used to produce a building material plate having a total thickness of 4mm and two light diffusion layers. Wherein the amounts of the first light diffusion particles and the second light diffusion particles are 20 parts by weight and 0.6 part by weight, respectively, and the light diffusion layers are formed to have a thickness of 400 μm on both sides, respectively. Items of the building material plate including the surface roughness values, total light transmittance, haze, and visual observation of the light diffusion layer are shown in table 2.

< examples 5 to 9>

Examples 5-9 were made in the same manner as example 4, but the difference from example 4 is listed in Table 1. Items of the building material plate including the surface roughness values, total light transmittance, haze, and visual observation of the light diffusion layer are shown in table 2.

< comparative example 1>

A building material plate having a total thickness of 4mm was produced by mixing 100 parts by weight of a methyl methacrylate-styrene copolymer available from Qimei, 15 parts by weight of first light diffusing particles [ polymethyl methacrylate fine particles/average particle diameter 45 μm ] and 1 part by weight of second light diffusing particles [ silicone resin transparent fine particles/average particle diameter 2.0 μm ] with an extrusion molding machine, and pressing the mixture with the press molding machine while maintaining a cylinder temperature of 240 to 270 ℃ and a die temperature of 250 ℃. The items of the total light transmittance, haze and visual observation of the building material plate measured as described above are shown in table 2 below.

< comparative example 2>

The difference from comparative example 1 is that only the first light diffusion particles are used, and the second light diffusion particles are not used. Items of the building material plate including the surface roughness values, total light transmittance, haze, and visual observation of the light diffusion layer are shown in table 2.

< comparative example 3>

The difference from comparative example 1 is that the first light diffusion particles are not used, and the second light diffusion particles are not used. Items of the building material plate including the surface roughness values, total light transmittance, haze, and visual observation of the light diffusion layer are shown in table 2.

TABLE 1

Table 2[ Tt represents total light transmittance; hz represents haze ]

In embodiment 7, the junction surface between the light diffusion layer and the light-transmitting substrate is a curved surface, and is configured as shown in fig. 5. The roughness of the left and right end points and the center point of the building material plate, the thickness of the light diffusion layer and other experimental values are listed below.

TABLE 3

as can be seen from the above examples and comparative examples, comparative examples 1 to 2, which also include the first and second light diffusing particles but do not include a transparent substrate, have low total light transmittance and are susceptible to moisture, and thus have low practical value. In comparative example 3, since the transparent substrate was used but the light diffusion layer was not included, the shielding effect was insufficient and the substrate could not be used as a building material. In examples 8 to 9, the shielding effect was deteriorated by using the first light diffusion particles in an amount exceeding 30% or the second light diffusion particles in an amount exceeding 5%, but the overall performance was still better than that of comparative examples 1 to 3.

It can be seen from the above examples and comparative examples that the building material plate comprises the transparent substrate and the light diffusion layer with the light diffusion particles properly adjusted, so as to have the optical properties of proper light transmittance and haze, and have practical values of confidentiality and preventing the water penetration from being affected.

The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A building material panel, comprising:

A light-transmitting substrate, wherein the total light transmittance of the light-transmitting substrate is 85% -99%; and

A light diffusion layer on at least one surface of the transparent substrate, wherein the thickness of the light diffusion layer is 0.05-0.7 relative to the thickness of the transparent substrate, and the thickness of the light diffusion layer is 100-3000 μm, wherein the light diffusion layer comprises:

An optical material is provided, which is composed of a transparent material,

A plurality of first light-diffusing particles having an average particle diameter of 6 to 100 μm, and

A plurality of second light diffusion particles having an average particle diameter of 0.5 to 5 μm;

wherein the light diffusion layer has a ten-point average roughness of 11 to 28 μm, the first light diffusion particles are 10 to 30 parts by weight and the second light diffusion particles are more than 0 part by weight and not more than 5 parts by weight based on 100 parts by weight of the optical material, and the building material sheet has a light transmittance of 77 to 95%.

2. The building material board of claim 1, wherein the first light-diffusing particles and the second light-diffusing particles are different in material type.

3. The building material plate of claim 1, wherein the second light diffusing particles are silicone resin with bridged siloxane groups.

4. The building material panel of claim 1, wherein at least one of the first light-diffusing particles and the second light-diffusing particles comprises a bridging polymer.

5. The building material panel according to claim 4, wherein the bridging polymer comprises at least one of polysiloxane, polymethyl methacrylate, methyl methacrylate-styrene copolymer and polystyrene.

6. The building material plate of claim 1, wherein the first light diffusing particle comprises a bridging polymer selected from the group consisting of polystyrene, polymethyl methacrylate, and methyl methacrylate-styrene copolymer.

7. The building panel of claim 1, wherein the light-transmissive substrate and the optical material are each independently selected from the group consisting of methylmethacrylate-styrene copolymer, polymethylmethacrylate, polystyrene, acrylonitrile-styrene, cyclic polyolefin, polyolefin copolymer, polyester, polyethylene, polypropylene, polyvinyl chloride, ionomer, and polycarbonate.

8. The building panel of claim 7, wherein the light-transmissive substrate is selected from the group consisting of polycarbonate, polystyrene, polymethylmethacrylate, and methylmethacrylate-styrene copolymer.

9. The building material board according to any one of claims 1 to 8, wherein the bonding surface between the light diffusion layer and the light-transmissive substrate is a plane or a curved surface.

10. The building material plate as claimed in any one of claims 1 to 8, wherein the transparent substrate has a surface opposite to the bonding surface of the transparent substrate and the light diffusion layer, and the surface of the transparent substrate has a surface roughness of 0.002 to 0.5 μm.

11. The building panel according to any one of claims 1 to 8, wherein the light diffusion layer is located on two opposite surfaces of the light-transmissive substrate.

12. The building panel according to any one of claims 1 to 8, wherein the haze of the building panel is 70 to 99%.

13. The building material panel according to any one of claims 1 to 8, wherein the building material panel has a thickness of 1 to 20 mm.

14. The building board according to any one of claims 1 to 8, wherein the light diffusion layer has a surface average roughness of 1.5 to 5.5 μm.

15. a building material panel, comprising:

an optical material; and

Wherein the light diffusion layer has a surface roughness average of 1.5 to 5.5 μm, the first light diffusion particles are 10 to 30 parts by weight and the second light diffusion particles are more than 0 part by weight and not more than 5 parts by weight based on 100 parts by weight of the optical material, and the building material sheet has a light transmittance of 77 to 95%.

16. A shower door panel comprising the building panel of any one of claims 1-15.

17. A door panel structure, comprising:

a frame body; and

A panel disposed in the frame, the panel comprising the building panel of any one of claims 1-15.

18. A galley door panel comprising the door panel structure of claim 17.

19. A bedroom door panel including the door panel structure of claim 17.

20. A door panel for a conference room comprising the door panel structure of claim 17.

21. An office partition comprising the door panel structure of claim 17.

22. a method of manufacturing a building panel, comprising:

Providing a first transparent thermoplastic resin;

A second transparent thermoplastic resin,

A plurality of second light diffusion particles having an average particle diameter of 0.5 to 5 μm; and

Co-extruding the first transparent thermoplastic resin and the light diffusion layer material by a co-extrusion process to form a light-transmitting substrate and a light diffusion layer of a building material plate respectively, wherein the thickness of the light diffusion layer is 0.05-0.7 relative to the thickness of the light-transmitting substrate, the thickness of the light diffusion layer is 100-3000 micrometers, the ten-point average roughness of the light diffusion layer is 11-28 micrometers, the total light transmittance of the light-transmitting substrate is 85-99%, the light diffusion layer comprises an optical material, based on 100 parts by weight of the optical material, the first light diffusion particles are 10-30 parts by weight, the second light diffusion particles are more than 0 part by weight and less than or equal to 5 parts by weight, and the light transmittance of the building material plate is 77-95%.

23. The method of claim 22, wherein the two light diffusion layers of the light diffusion layer material forming the building board are respectively disposed on two opposite surfaces of the light-transmissive substrate.

24. The method of claim 22, further comprising providing two light diffusion layer materials, wherein the two light diffusion layer materials and the first transparent thermoplastic resin are co-extruded in the co-extrusion process to form a light-transmissive substrate of a building board and light diffusion layers on two opposite surfaces of the light-transmissive substrate, respectively.

25. The method of any one of claims 22 to 24, wherein the first transparent thermoplastic resin and the second transparent thermoplastic resin are the same material.

26. The method of any one of claims 22 to 24, wherein the first transparent thermoplastic resin and the second transparent thermoplastic resin are different materials.