TW201721000A - Building material plate and manufacturing method of the same and window - Google Patents

Abstract

A building material plate, a manufacturing method thereof, and a window are provided. The building material plate includes a transparent substrate and a light diffusion layer disposed on at least a surface of the transparent substrate. The light diffusion layer includes an optical material and a plurality of first light diffusion particles. The first light diffusion particles have an average particle size of 6-100 [mu]m, and surface roughness of the light diffusion layer is 1.5-4 [mu]m.

Description

Building board, manufacturing method thereof and door and window

The disclosure relates to a building board, a method of manufacturing the same, and a door and window.

In order to produce a building board that has both good total light transmittance and haze and is both practical and protective, for example, it is often used as a window material for doors and windows when used for doors and windows. However, glass materials are expensive to manufacture and heavy in weight, so companies are hoping to develop door and window materials with lower manufacturing costs and lighter weight.

Although the building materials board that has been developed has a good total light transmittance, the haze is obviously insufficient, so the problem of privacy protection is easy to use; or although the building board has good haze, the total light transmittance is obviously insufficient. Although it has the effect of protecting internal privacy, it lacks practical value, that is, the light cannot penetrate, causing indoor darkness, which is inconvenient for practical use. Or the total light transmittance or haze is excellent, but it is insufficient in practicality. For example, if you encounter rainwater splashing the surface, it will lead to penetration effect, and the use of it will cause privacy protection. question. Therefore, how to make the building board simultaneously have the total light transmittance and haze and the balance between practicability and privacy protection has become an urgent problem to be improved in this field.

The disclosure provides a building board, a manufacturing method thereof and a door and window.

According to an embodiment of the present disclosure, a building board is proposed. The building material board includes a light transmissive substrate and a light diffusion layer, and the light diffusion layer is located on at least one surface of the light transmissive substrate. The light diffusion layer includes an optical material and a plurality of first light diffusion particles. The average particle diameter of the first light-diffusing particles is 6 to 100 μm, and the surface roughness (Ra) of the light-diffusing layer is 1.5 to 4 μm.

According to another embodiment of the present disclosure, a method of manufacturing a building board is proposed. The manufacturing method of the building board includes the following steps. Providing a light-transmissive substrate; providing a light-diffusing layer comprising: an optical material; a plurality of first light-diffusing particles, wherein the first light-diffusing particles have an average particle diameter of 6 to 100 micrometers (μm), and the light The surface roughness (Ra) of the diffusion layer is 1.5 to 4 μm; and the light diffusion layer and the light transmissive substrate are joined by a common extrusion process to form a building material board.

According to still another embodiment of the present disclosure, a door and window is proposed. The door and window includes a frame and a window, and the window is disposed in the frame, and the window comprises the building board as described above.

In order to better understand the above and other aspects of the present disclosure, the preferred embodiments are described below in detail with reference to the accompanying drawings.

10~60‧‧‧Building board

70‧‧‧ doors and windows

100‧‧‧Transparent substrate

100a‧‧‧ joint surface

100b‧‧‧ surface

110‧‧‧Light diffusion layer

110a‧‧‧Rough surface

710‧‧‧ frame

720‧‧‧Window

T1, T2‧‧‧ thickness

FIG. 1 is a schematic view of a building board according to an embodiment of the present disclosure.

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

FIG. 3 is a schematic diagram of a building board according to still another embodiment of the disclosure.

FIG. 4 is a schematic view showing a building material board according to still another embodiment of the present disclosure.

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

FIG. 6 is a schematic view showing a building material board according to still another embodiment of the present disclosure.

FIG. 7 is a schematic diagram of a door and window according to an embodiment of the disclosure.

The embodiments of the present disclosure are described in detail below. It should be noted, however, that the embodiments are presented for illustrative purposes only, and the scope of the disclosure is not limited to the described aspects. This disclosure does not show all possible embodiments. Other variations and modifications may be made to the structure without departing from the spirit and scope of the disclosure, so that other embodiments not disclosed in the present disclosure may be applied. Therefore, the content of the specification is for the purpose of describing the embodiments only, and is not intended to limit the scope of the disclosure.

FIG. 1 is a schematic view of a building board 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 diffusing layer 110 . The light diffusing 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 average particle diameter of the first light-diffusing particles is 6 to 100 μm, and the surface roughness (Ra) of the light-diffusing layer 110 is 1.5 to 4 μm.

In the embodiment, the total light transmittance of the transparent substrate 100 having a thickness of 3 to 4 millimeters (mm) is preferably 85% or more, more preferably 88% or more, most preferably 90% or more, and more preferably 92% or more. . For example, the total light transmittance of the light-transmitting substrate 100 is, for example, 85% to 99% or 90 to 99%. It is preferable that the light-transmitting substrate 100 does not contain light-diffusing particles. The combination of the light-transmitting substrate 100 and the light-diffusing layer 110 makes the building board of the present invention have better optical properties and a more noble glass texture in appearance.

In the embodiment, the optical material of the light-transmitting substrate 100 and the light diffusion layer 110 is an organic resin substrate having a light-transmitting property. In an embodiment, the optical materials of the transparent substrate 100 and the light diffusion layer 110 may be independently selected from the group consisting of methyl methacrylate-styrene copolymer (MS), polymethyl methacrylate (PMMA), and polystyrene (PS). ), acrylonitrile-styrene (AS), cyclo-olefin copolymer, polyolefin copolymer (such as poly-4-methyl-1-pentene), polyethylene terephthalate ( A group of 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 preferred. Polymethyl methacrylate, methyl methacrylate-styrene copolymer is more preferred. And wherein the methyl methacrylate-styrene copolymer has a molar ratio of methyl methacrylate to styrene of 30/70 to 40/60.

In an embodiment, the light diffusion layer 110 further includes a plurality of second light diffusion particles, and the second light diffusion particles have an average particle diameter of 0.5 to 5 micrometers (μm).

In the embodiment, the light-diffusing particles (the first light-diffusing particles and/or the second light-diffusing particles) are adjusted to meet the needs of the industry for adjusting the optical properties and practicability, for example, the surface roughness and the total light transmission can be simultaneously adjusted. The rate is in accordance with the optical properties and at the same time has both practical shielding and water penetration resistance. The first light-diffusing particles and the second light-diffusing particles of the present invention are, for example, inorganic fine particles represented by glass fine particles, barium sulfate (BaSO ₄ ), calcium carbonate (CaCO ₃ ), and alumina (Al ₂ O ₃ ). Organic fine particles such as a styrene resin, a (meth)acrylic resin, or a fluorene resin are preferably used, and organic fine particles are preferred. The organic microparticles are preferably more organic microparticles that have been bridged, and at least partially bridged during the manufacturing process, and no deformation occurs during the processing of the translucent resin, and the microparticle state can be maintained. In other words, it is preferable that the fine particles which are not melted in the light-transmitting resin even when heated to the molding temperature of the light-transmitting resin, and more preferably the organic fine particles of the bridged (meth)acrylic resin or the enamel resin. Specific examples thereof are, for example, a polymer of a core/poly(methyl methacrylate) outer shell of polymer microparticles (butyl acrylate) based on partially bridged methyl methacrylate, having a rubbery shape. The core/shell type polymer of the core and outer shell of the ethylene polymer [Rohm and Hass Campany (trade name Paraloid EXL-5136, manufactured by Rohm and Haas Company)], and the resin of the bridged alkoxyalkyl group [Toshiba Silicone] ) Company system, trade name Tospearl 120].

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

Among them, the material types of the first light diffusion particles and the second light diffusion particles are preferably different. For example, the first light diffusing particles are preferably selected from the group consisting of polystyrene, polymethyl methacrylate or methyl methacrylate-styrene copolymer; and the second light diffusing particles are selected from the group consisting of ruthenium resins having a bridged oxiranyl group. good.

In the embodiment, the average particle diameter of the first light-diffusing particles is 6 to 100 micrometers (μm), preferably 10 to 80 μm, and particularly preferably 20 to 75 μm, and most preferably 25 to 75 μm. The best is 30~70μm. The average particle diameter of the second light-diffusing particles is 0.5 to 5 μm, preferably 0.5 to 4.5 μm, and particularly preferably 0.5 to 4 μm, and most preferably 1 to 3.5 μm. The average particle diameter of the transparent fine particles (that is, 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 the number of particles of the Japanese machine. Particle size distribution analyzer MODEL Zm. When the weight average particle diameter of the first light-diffusing particles is less than 6 μm, sufficient light diffusibility is not obtained and the light-emitting property of the light-emitting surface is poor, and when it exceeds 100 μm, sufficient light diffusibility is not obtained and the surface is too rough to affect the appearance. And optical properties. When the weight average particle diameter of the second light-diffusing particles is less than 0.5 μm, sufficient light diffusibility is not obtained and the light-emitting property of the light-emitting surface is poor, and when it exceeds 5 μm, sufficient light diffusibility is not obtained, resulting in insufficient transparency.

The first light-diffusing particles are preferably used in an amount of 10 to 30 parts by weight based on 100 parts by weight of the optical material, and particularly preferably 15 to 25 parts by weight, most preferably 18 to 23 parts by weight; and second light-diffusing particles. The amount used is 0 to 5 parts by weight based on 100 parts by weight of the optical material, and particularly preferably 1 to 4 parts by weight, and most preferably 2 to 3 parts by weight. When the amount of the first light-diffusing particles used is less than 10 parts by weight, optical expansion occurs. Insufficient bulk, you can directly penetrate and see the problem of the rear object, unable to maintain internal privacy issues. On the other hand, when the amount of the first light-diffusing particles exceeds 30 parts by weight, the light transmittance is lowered, the total light transmittance is too low, and the square body behind the building board cannot be directly recognized, which is inconvenient to use; the use of the second light-diffusing particles When the amount exceeds 5 parts by weight, the light transmittance is lowered, and the total light transmittance is too low, and the square body behind the building board cannot be directly recognized, which is inconvenient to use. Briefly, the first light diffusing particles can adjust the surface roughness, and the second light diffusing particles can adjust the haze of the building board. However, in reality, the two light diffusing particles are related to each other. For example, if two light-diffusing particles are added at the same time, the ratio of the two can be adjusted to the optimum range to exert the optical properties of the total light transmittance and the haze of the building board, and the optimum range can be simultaneously Practical value such as shielding and penetration resistance after water repellent.

According to an embodiment of the present disclosure, the building material board has good total light transmittance and haze, and at the same time has both shielding property and water penetration resistance, and has high structural strength.

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

According to an embodiment of the present disclosure, the light-transmitting substrate 100 may not include any light-diffusing particles, and thus may exhibit a transparent feeling similar to that of a glass material, and the haze provided by the light-diffusing layer 110 may achieve the desired light shielding effect. Waterproof dial penetration and other characteristics.

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

As shown in FIG. 1, the light diffusion layer 110 has a rough surface 110a. In one embodiment, the surface roughness (Ra value) of the rough surface 110a of the light diffusion layer 110 is preferably, for example, 1.7 to 3.5, and most preferably, for example, 1.9 to 3.0.

In the embodiment, the interface 100a between the light diffusion layer 110 and the transparent substrate 100 may be a plane or a curved surface. As shown in FIGS. 1 and 2, in the present embodiment, the joint surface 100a between the light diffusion layer 110 and the light-transmitting substrate 100 is a flat surface.

As shown in FIG. 1, the light-transmitting substrate 100 has a surface 100b which is opposed to an interface 100a between the light-diffusing layer 110 and the light-transmitting substrate 100. In one embodiment, the surface roughness (Ra value) of the surface 100b is, for example, 0.002 to 0.5 μm; more preferably, for example, 0.01 to 0.3; most preferably, for example, 0.02 to 0.2.

According to an embodiment of the present disclosure, the light transmittance of the building board is 50 to 95%; preferably, the light transmittance of the building board is 50 to 90%; preferably, the light penetration of the building board The degree is, for example, 70 to 88%; more preferably, the light transmittance of the building board is, for example, 70 to 85%; optimally, for example, 75 to 85%. In addition, the haze of the building board It is 70 to 99%; preferably, for example, 75 to 99%; preferably, for example, 70 to 90%; more preferably, for example, 80 to 90%; optimally, for example, 80 to 85% .

The optical properties of building materials boards vary depending on the place of use. For example, the bathroom and the kitchen require high light penetration to achieve penetration and spatial expansion, so the light transmittance is 70 to 95%; preferably, the light penetration of the building board is, for example, 75 to 90%. In addition, the haze of the building board is 70-90%; preferably, for example, 70-80%; however, the private space, such as the bedroom, the conference room compartment, etc., is focused on privacy protection, so the light penetration system It is 50 to 90%; preferably, the light transmittance of the building board is, for example, 60 to 85%. Further, the haze of the building material board is 75 to 99%; preferably, for example, 80 to 90%.

For example, there are many building materials boards using a light-transmissive substrate and a single-layer light-diffusion layer in a bathroom and a kitchen; and a building board having a light-transmitting substrate and a double-layer light diffusion layer structure in a bedroom or a conference room compartment.

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

According to an embodiment of the present disclosure, the building board is made, for example, by a co-extrusion process. The manufacturing method of the building board can include, for example, the following steps. Providing a light transmissive substrate 100; providing a light diffusion layer 110 as described herein; and bonding the light diffusion layer 110 and the light transmissive substrate 100 in a co-extrusion process to form the building material panel 10.

For example, taking a transparent thermoplastic resin (material of the transparent substrate 100), pressing and pressing with a first extruding device (not shown); The transparent thermoplastic resin (the material of the light diffusion layer 110) of the first light diffusing particles and the second light diffusing particles is extruded by a second extruding device (not shown) at the same extrusion temperature as the first extruding device; And causing the first extrudate of the first extruding device and the second extrudate of the second extruding device to be co-extruded through a multi-manifold die (not shown) to form an inclusion The light diffusion layer 110 and the building material board 10 of the light transmissive substrate 100.

In other embodiments, the extrudate of the first extruding device and the extrudate of the second extruding device are co-extruded through a feedblock die (not shown).

In other embodiments, the ejecting temperature of the first extruding device and the second extruding device may be different, but the discharging of the first extrudate and the second extrudate when leaving the first extruding device and the second extruding device The temperature is the same. The discharge temperature of the first extrudate and the second extrudate is 220 ° C to 290 ° C, preferably 240 ° C to 270 ° C.

2 is a schematic view of a building material board according to another embodiment of the present disclosure, and FIG. 3 is a schematic view showing a building material board according to still another embodiment of the present disclosure. The same or similar components are used for the same or similar components in the two embodiments, and the related descriptions of the same or similar components are referred to the foregoing, and are not described herein again. The difference between the two embodiments and the embodiment shown in Fig. 1 is mainly that the design of the joint surface 100a is a curved surface.

As shown in FIG. 2, in the building board 20, the joint surface 100a of the light-diffusion layer 110 and the light-transmitting substrate 100 is a curved surface which is recessed toward the light-transmitting substrate 100. As the third As shown in the figure, in the building board 30, the joint surface 100a of the light diffusion layer 110 and the light-transmitting substrate 100 is a curved surface that protrudes toward the light diffusion layer 110.

In the building materials boards 20 and 30 shown in FIGS. 2 to 3, the light-transmitting substrate 100 has a surface 100b which is opposed to an interface 100a between the light-diffusing layer 110 and the light-transmitting substrate 100. In one embodiment, the surface roughness (Ra value) of the surface 100b is, for example, 0.002 to 0.5 μm; more preferably, for example, 0.01 to 0.3; most preferably, for example, 0.02 to 0.2.

FIG. 4 is a schematic view showing a building material board according to still another embodiment of the present disclosure. The same or similar components as those of the above-mentioned embodiments are denoted by the same or similar components, and the related descriptions of the same or similar components are referred to the foregoing, and are not described herein again.

As in the embodiment shown in FIG. 4, the light diffusion layer 110 of the building board 40 is formed on the opposite surfaces (the joint surface 100a and the surface 100b) of the light-transmitting substrate 100. In the present embodiment, the light-transmitting substrate 100 and the light diffusion layer 110 have two joint faces (joining faces 100a and 100b).

According to the embodiment, the building material board is produced, for example, by a co-extrusion process. The manufacturing method of the building board can include, for example, the following steps. A light transmissive substrate 100 is provided; two light diffusion layers 110 as described herein are provided; and the two light diffusion layers 110 are bonded to the opposite surfaces of the light transmissive substrate 100 by a co-extrusion process to form the building material panel 40.

FIG. 5 is a schematic view showing a building material board according to a further embodiment of the present disclosure, and FIG. 6 is a schematic view showing a building material board according to still another embodiment of the present disclosure. Figure. The same or similar components are used for the same or similar components in the two embodiments, and the related descriptions of the same or similar components are referred to the foregoing, and are not described herein again. The difference between the two embodiments and the embodiment shown in Fig. 4 is mainly that the design of the joint surface 100a is a curved surface.

As shown in FIG. 5, in the building board 50, the two joint faces (joining surface 100a and surface 100b) of the two light-diffusing layers 110 and the light-transmitting substrate 100 are curved surfaces that are recessed toward the light-transmitting substrate 100. As shown in FIG. 6, in the building board 60, the two joint surfaces of the two light diffusion layers 110 and the light-transmitting substrate 100 (the joint surface 100a and the surface 100b are curved surfaces that protrude toward the light diffusion layer 110).

FIG. 7 is a schematic diagram of a door and window according to an embodiment of the disclosure. As shown in FIG. 7, the door and window 70 includes a frame 710 and a window 720, and the window 720 is disposed in the frame 710. Window 720 includes a building board as previously described herein.

According to an embodiment of the present disclosure, the door and window made of the building material board of the embodiment has good total light transmittance and haze, and also has high structural strength, thereby achieving high safety requirements.

The light diffusion layer 110 may use an ultraviolet absorber as needed. The ultraviolet absorber such as 2,2'-dihydroxy-4-methoxybenzophenone benzophenone-based ultraviolet absorber, 2-(4,6-diphenyl-1,3,5-three Triazine-based UV absorber of pyrazin-2-substituted)-5-hexylhydroxyphenol, 2-(2H-benzotriazol-2-substituted)-4-methylphenol, 2-(2H-benzo Triazol-2-substituted)-4-trioctylphenol, 2-(2H-benzotriazol-2-substituted)-4,6-bis(1-methyl-1-phenylethyl) Phenol, 2-(2H-benzotriazol-2-substituent)-4, 6-bis-third amyl phenol, 2-(5-chloro-2H-benzotriazol-2-substituted)-4-methyl-6-tert-butylphenol, 2-(5-chloro 2-H-benzotriazol-2-substituted)-2,4-tert-butylphenol and 2,2'-methylenebis[6-(2H-benzotriazol-2-substituent) a benzotriazole-based ultraviolet absorber such as -4-(1,1,3,3-tetramethylbutyl)phenol]. And preferably 2-(2-hydroxy-5-tolyl)benzotriazole, 2-(2-hydroxy-5-trioctylphenyl)benzotriazole, 2-(2-hydroxy-3, 5-diisopropylbenzene)phenylbenzotriazole, 2-(2-hydroxy-3-tert-butyl-5-tolyl)-5-chlorobenzotriazole, 2,2'-methylene Bis[4-(1,1,3,3 tetramethylbutyl)-6-(2H-benzotriazol-2-substituted)phenol], 2-[2-hydroxy-3-(3, 4,5,6-Tetrahydrophthalene imine methyl)-5-methylphenyl]benzotriazole. Among them, 2-(2-hydroxy-5-trioctylphenyl)benzotriazole, 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl) More preferably, the -6-(2H-benzotriazol-2-substituted)phenol is used alone or in combination of two or more.

The light diffusion layer 110 may use a fluorescent agent as needed. The fluorescent agent is used for improving the color tone of a synthetic resin or the like to white or blue-white, such as a distyrylene type, a benzimidazole type, a benzoxazole type, a phthalimide type, a rose red type, A coumarin system or an oxazole compound.

The light diffusion layer 110 may use an antioxidant as needed. The type of the antioxidant is, for example, a phenol-based antioxidant, a thioether-based antioxidant, or a phosphorus-based antioxidant. Representative phenolic antioxidants are: octadecyl (3,5-bis-tert-butyl-4-hydroxyphenyl)-propionate, triethylene glycol bis[3-(3-third butyl) 5--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-third Butylphenol), 2,2'-thiobis(4-methyl-6-tert-butylphenol), 2,2'-thio-diethylene-bis[3-(3,5-double Third butyl-4-hydroxyphenyl)propionate], 2,2'-ethylenediamine-bis[ethyl-3-(3,5-bis-tert-butyl-4-hydroxyphenyl) ) propionate] and the like. Representative thioether antioxidants are: distearyl thiodipropionate, dipalmitosulfur dipropionate, pentaerythritol-tetrakis-(β-dodecyl-thiopropionate) , dioctadecyl sulfide, and the like. Phosphorus-based antioxidants are phosphite antioxidants or phosphate antioxidants, and are typically represented by tris(nonylphenyl) phosphite, dodecyl phosphite, and cyclic neopentane tetrahydronaphthalene. Bis(octadecylphosphite), 4,4'-butylidene bis(3-methyl-6-t-butylphenyl-bistridecylphosphite), three (2,4) -T-butylphenyl)phosphite, tetrakis(2,4-t-butylphenyl)-4,4'-extended biphenyl phosphate, 9,10-dihydro-9-oxo-10 - Phosphate phenoxy-10-oxygen and the like.

Hereinafter, the embodiments of the present invention will be described, but the present invention is not limited thereto.

The evaluation items and methods are as follows.

a. Total light transmittance: It was measured in accordance with JIS K-7361 using Haze meter NDH 2000 manufactured by Nippon Denshoku Industries Co., Ltd. This example was measured using a 4 mm sheet.

b. Haze: used by Nippon Denshoku Industries Co., Ltd. Haze meter NDH 2000, measured according to JIS K-7361. This example was measured using a 4 mm sheet.

c. Privacy obscuration observation: In the 300 illuminance space, take the building board upright 30cm in front of the human eye, take an object, the object system is a set of parallel lines, the line width is 5mm each, and the two lines are separated by 5mm. Placed on the vertical opposite side of the human eye and the building board, the object is 1 cm away from the building board, and begins to move the object away from the building board and the human eye, and records the distance that the human eye cannot distinguish the two lines. If it is 30 cm or less, it is ○; if it is 30 cm to 60 cm, it is △; if it is 60 cm or more, it is X.

d. Waterproof penetration observation: Observe whether the penetration of the building board is affected by the adhesion of water to the surface of the building board. Take the building board upright 30cm in front of the human eye, take an object, the system is a set of parallel lines, the line width is 5mm each, the two lines are separated by 5mm. Placed on the vertical opposite side of the human eye and the building board, the object is 5 cm away from the building board. The outer surface of the light-diffusing layer of the building board (for example, 110 in the drawing 1) is wiped with a immersed wet cloth, and it is visually observed from the wiping surface whether the two lines can be clearly seen. If it is undecidable, it is ○; if it can be seen, it is X.

<Example 1>

100 parts by weight of a methyl methacrylate-styrene copolymer of PM-500G commercially available, and 15 parts by weight of the first light-diffusing particles [polymethyl methacrylate fine particles/average particle diameter 45 μm] were mixed as light. Diffusion layer. On the other hand, 100 parts by weight of a methyl methacrylate-styrene copolymer of PM-500G commercially available from Chi Mei was prepared as a material for forming a light-transmitting substrate (when the thickness of the material was 3 mm, the total light transmittance was 92%). Use a 2-layer co-extrusion molding machine and keep the cylinder temperature at 240 to 270 ° C, the mold temperature is 250 ° C, the thickness of the light diffusion layer is formed to 20 μm, thereby producing a single-layer light diffusion layer of a building material panel having a total thickness of 4 mm, the surface roughness of the building material panel containing the light diffusion layer It was 2.2 microns and contained no light diffusion layer with a surface roughness of 0.02 microns. The items such as the total light transmittance, haze and visual observation of the above-mentioned measured building board are described in Table 2 below.

<Example 2>

The difference from the first embodiment is that the light diffusion layer is increased to 3.5 parts by weight of the second light-diffusing particles (yen resin-based transparent fine particles/average particle diameter 2.0 μm) in addition to the first diffusion particles, and the thickness of the light diffusion layer. It is 160 μm. The building material panel has a light diffusion layer having a surface roughness of 2.9 μm and a light diffusion layer having a surface roughness of 0.03 μm.

The production manners of Embodiments 3 to 8 are the same as those of Embodiment 2, but the difference characteristics list with Embodiment 2 is as shown in Table 1:

<Comparative Example 1>

100 parts by weight of a methyl methacrylate-styrene copolymer of PM-500G commercially available, and 15 parts by weight of the first light-diffusing particles [polymethyl methacrylate fine particles/average particle diameter 45 μm] and a second light diffusion 1 part by weight of particles (anthraquinone-based transparent fine particles/average particle diameter: 2.0 μm), and press-molding was carried out by using an extrusion molding machine, and the cylinder temperature was maintained at 240 to 270 ° C, and the mold temperature was 250 ° C. Building materials board with a thickness of 4mm. The items such as the total light transmittance, haze and visual observation of the above-mentioned measured building board are described in Table 2 below.

<Comparative Example 2>

The difference from Comparative Example 1 is that only the first light diffusing particles are used, and The second light diffusing particles are used.

<Comparative Example 3>

The difference from Comparative Example 1 was that the first light-diffusing particles were not used, and the second light-diffusing particles were not used.

In the embodiment 6, the light diffusion layer and the transparent substrate are joined to each other in a curved surface. The structure shown in Fig. 5 is shown in the figure (the related process technology is well known in the art and will not be described again). The center point roughness is 2.5. The thicknesses of the light diffusion layers and the other experimental values of the left and right ends of the building board are measured as follows.

It can be seen from the above examples and comparative examples that although Comparative Examples 1 and 2 also contain the first and second light-diffusing particles, they do not contain a transparent substrate, so the total light transmittance is poor and the light is easily affected by water penetration. Rate, so the practical value is not high. In Comparative Example 3, a transparent substrate was used, but the light diffusion layer was not included, so that the shielding effect was insufficient and it could not be used as a building material board. In Examples 7 to 8, the first light-diffusing particles having a content of more than 30% or the second light-diffusing particles having a content of more than 5% were used, so that the shielding effect was inferior.

It can be found from the above examples and comparative examples that the building material board comprises a light-transmitting substrate and a light-diffusing layer which appropriately adjusts the light-diffusing particles, so as to have appropriate optical properties such as light transmittance and haze, and both confidentiality and avoidance. Water dialing affects the practical value of penetration.

In summary, the disclosure has been disclosed in the above preferred embodiments, and is not intended to limit the disclosure. The subject matter of the disclosure is in the technical field Those who have the usual knowledge can make various changes and refinements without departing from the spirit and scope of the disclosure. Therefore, the scope of protection of this disclosure is subject to the definition of the scope of the appended claims.

10‧‧‧Building board

100‧‧‧Transparent substrate

100a‧‧‧ joint surface

100b‧‧‧ surface

110‧‧‧Light diffusion layer

110a‧‧‧Rough surface

T1, T2‧‧‧ thickness

Claims (28)

A building material board comprising: a light transmissive substrate; and a light diffusing layer on at least one surface of the light transmissive substrate, wherein the light diffusing layer comprises: an optical material; and a plurality of first light diffusing particles, the plurality of The average particle diameter of a light-diffusing particle is 6 to 100 micrometers (μm), and the surface roughness (Ra) of the light-diffusing layer is 1.5 to 4 μm. The building board of claim 1, wherein the light-transmitting substrate has a total light transmittance of 85% to 99%. The building board according to claim 1, wherein the first light-diffusing particles are 10 to 30 parts by weight based on 100 parts by weight of the optical material. The building material panel of claim 1, wherein the light diffusing layer further comprises a plurality of second light diffusing particles, wherein the second light diffusing particles have an average particle diameter of 0.5 to 5 micrometers (μm). The building board of claim 4, wherein the second light-diffusing particles are greater than 0 parts by weight to 5 parts by weight based on 100 parts by weight of the optical material. The building material board of claim 4, wherein the second light diffusing particles comprise inorganic fine particles or organic fine particles. The building board of claim 4, wherein the second light diffusing particles comprise a bridge polymer. The building material board of claim 4, wherein the first light diffusing particles and the second light diffusing particles are different in material type. The building board of claim 4, wherein the second light diffusing particles are a ruthenium resin having a bridged oxiranyl group. The building board of claim 1, wherein the first light diffusing particles comprise inorganic fine particles or organic fine particles. The building board of claim 1, wherein the first light diffusing particles comprise a bridge polymer. The building board according to claim 11, wherein the bridging polymer comprises at least one of polyoxyalkylene, polymethyl methacrylate, methyl methacrylate-styrene copolymer and polystyrene. The building board of claim 1, wherein the first light diffusing particles comprise a bridging polymer selected from the group consisting of polystyrene, polymethyl methacrylate and methacrylic acid. A group of methyl ester-styrene copolymers. The building board of claim 1, wherein the transparent substrate and the optical material are independently selected from the group consisting of methyl methacrylate-styrene copolymer (MS) and polymethyl methacrylate (PMMA). ), polystyrene (PS), acrylonitrile-styrene (AS), cyclo-olefin copolymer, polyolefin copolymer, polyester, polyethylene, polypropylene, polyvinyl chloride, ionomerization A group of ionomers and polycarbonates (PCs). The building board according to claim 14, wherein the transparent substrate is selected from the group consisting of polycarbonate, polystyrene, polymethyl methacrylate and methyl methacrylate-styrene copolymer. . The building material panel according to any one of claims 1 to 15, wherein a ratio of a thickness of the light diffusion layer to a thickness of the light-transmitting substrate is 0.02 to 0.9. The building material board according to any one of claims 1 to 15, wherein The light diffusion layer has a thickness of 50 to 5000 μm. The building board according to any one of the preceding claims, wherein the interface between the light diffusing layer and the light transmitting substrate is a flat surface or a curved surface. The building board according to any one of the preceding claims, wherein the light-transmitting substrate has a surface opposite to a surface of the light-transmitting substrate and the light-diffusing layer, and the light-transmitting layer The surface roughness of the surface of the substrate is 0.002 to 0.5 μm. The building material panel according to any one of claims 1 to 15, wherein the light diffusion layer is located on two opposite surfaces of the light transmissive substrate. The building material board according to any one of claims 1 to 15, wherein the building material board has a light transmittance of 50 to 95%. The building material board according to any one of claims 1 to 15, wherein the building material board has a haze of 70 to 99%. The building material board according to any one of claims 1 to 15, wherein the building material board has a light transmittance of 50 to 90%. The building material board according to any one of claims 1 to 15, wherein the building material board has a haze of 75 to 99%. The building material board according to any one of claims 1 to 15, wherein the building material board has a thickness of 1 to 20 mm (mm). A method for manufacturing a building board comprises: providing a transparent substrate; providing a light diffusing layer, the light diffusing layer comprising: an optical material; and a plurality of first light diffusing particles, the average particles of the first light diffusing particles The diameter is 5 to 100 micrometers (μm), wherein the surface roughness (Ra) of the light diffusion layer is 1.5 to 4 micrometers; and the light diffusion layer and the light transmissive substrate are joined by a common extrusion process to form a building material board. The method of manufacturing a building board according to claim 26, further comprising providing the light diffusion layer, wherein the co-extrusion process joins the two light diffusion layers to two opposite surfaces of the light-transmitting substrate. A door and window, including: A frame; and a window piece disposed in the frame, the window piece comprising the building material board according to any one of claims 1 to 25.