CN113025017A - Sheet-like molding compound and molded article thereof - Google Patents
Sheet-like molding compound and molded article thereof Download PDFInfo
- Publication number
- CN113025017A CN113025017A CN202011479923.1A CN202011479923A CN113025017A CN 113025017 A CN113025017 A CN 113025017A CN 202011479923 A CN202011479923 A CN 202011479923A CN 113025017 A CN113025017 A CN 113025017A
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- mass
- parts
- forming material
- molded article
- inorganic filler
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- 238000000465 moulding Methods 0.000 title claims abstract description 18
- 150000001875 compounds Chemical class 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 59
- 239000003677 Sheet moulding compound Substances 0.000 claims abstract description 38
- 239000011256 inorganic filler Substances 0.000 claims abstract description 28
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 28
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 16
- 239000004793 Polystyrene Substances 0.000 claims abstract description 14
- 229920002223 polystyrene Polymers 0.000 claims abstract description 14
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 13
- 238000002834 transmittance Methods 0.000 claims abstract description 12
- 239000003086 colorant Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 229920001567 vinyl ester resin Polymers 0.000 claims description 3
- 239000000206 moulding compound Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 description 26
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000012778 molding material Substances 0.000 description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- -1 ketone peroxide compounds Chemical class 0.000 description 8
- 239000002562 thickening agent Substances 0.000 description 8
- 239000004412 Bulk moulding compound Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000005871 repellent Substances 0.000 description 6
- 230000002940 repellent Effects 0.000 description 6
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical compound CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 229920006305 unsaturated polyester Polymers 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- DVNYTAVYBRSTGK-UHFFFAOYSA-N 5-aminoimidazole-4-carboxamide Chemical compound NC(=O)C=1N=CNC=1N DVNYTAVYBRSTGK-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 235000015125 Sterculia urens Nutrition 0.000 description 2
- 240000001058 Sterculia urens Species 0.000 description 2
- 210000005097 arteria cerebelosa anteroinferior Anatomy 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 239000011973 solid acid Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- DXIJHCSGLOHNES-UHFFFAOYSA-N 3,3-dimethylbut-1-enylbenzene Chemical compound CC(C)(C)C=CC1=CC=CC=C1 DXIJHCSGLOHNES-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000002928 artificial marble Substances 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012933 diacyl peroxide Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 210000000329 smooth muscle myocyte Anatomy 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical class [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a sheet-like molding compound which can obtain a molded article having high visibility of a pattern forming material and excellent design, and a molded article thereof. The present invention uses a sheet molding compound characterized by containing: the pattern-forming material (F) is a cured product of a composite (X) containing an unsaturated polyester resin and an inorganic filler, and the total light transmittance (JIS K-7361-1) of a molded plate having a thickness of 4mm obtained by molding the cured product containing 1 to 50 parts by mass of the crosslinked polystyrene (C) and 50 to 400 parts by mass of the inorganic filler (D) per 100 parts by mass of the thermosetting resin (A) exceeds 2.5%.
Description
Technical Field
The present invention relates to a sheet-like molding compound and a molded article thereof.
Background
Fiber-reinforced thermosetting resins (hereinafter referred to as FRP) have many features such as light weight and excellent strength and corrosion resistance compared to metals, and are widely used in various applications such as housing members for bathtubs and septic tanks, industrial members for pipes, and various electric parts. There are many types of methods for forming such FRP, and one of them is a press forming method.
In this method, a molding material is charged into a mold heated to a predetermined temperature, and the molding material is pressed and heated by a press machine to be cured. As the molding material, a sheet molding compound (hereinafter referred to as SMC), a bulk molding compound (hereinafter referred to as BMC), or the like is generally used. The press molding method has many advantages over other FRP molding methods in terms of less material loss, high productivity, good working environment, etc., and is widely used for the production of FRP products.
The press molding method using SMC and BMC has many advantages as described above, and therefore is widely used for bathtub, washbasin, washstand, kitchen counter, and the like, and various types of products such as color and pattern of molding materials have been developed to meet the high-level and diversified demands.
For example, a sink of a toilet table, which is one of residential facilities, is made of pottery, which occupies a large half of the conventional toilet table, but the size of the toilet table is increased (widened) mainly for installation in an apartment, and thus not only the sink but also a sink-integrated table is required. However, since the dimensional stability of pottery is poor, it is impossible to efficiently produce a large-sized (counter-integrated) sink, and the weight increase associated with the increase in size causes deterioration in workability, and thus FRP sink products are being produced.
In addition, due to high design requirements of a toilet table, a wash basin made of artificial marble using BMC has been proposed (for example, see patent document 1). However, although BMC is a molding material capable of kneading and integrating design imparting materials such as a granular pattern forming material and a glitter pattern forming material (Japanese: ラメ handle material), it has a problem that the content of reinforcing fibers (glass fibers) is low, and therefore, it is necessary to thicken the material in order to secure strength, and the material does not satisfy the requirement for weight reduction.
Meanwhile, in order to meet the demand for weight reduction, washbasins using SMC as a molding material are being produced. Since the SMC can be designed to have a higher reinforcing fiber content than the BMC, the molded product can be made thinner, and a large (wide) wash basin integrated stand can be easily molded and can be made lighter. However, it is difficult to impart designability that can be imparted by BMC to SMC.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2017-1933.
Disclosure of Invention
Problems to be solved by the invention
An object of the present invention is to provide an SMC that can provide a molded article having a pattern-forming material with high visibility and excellent design from the viewpoint that the pattern-forming material can be seen in a three-dimensional (three-dimensional) manner, from the viewpoint that the pattern-forming material present only on the surface layer (two-dimensionally) of the molded article can be seen, and from the viewpoint that the pattern-forming material present at a deep position in the thickness direction of the molded article can be seen, and a molded article thereof.
Means for solving the problems
The present inventors have found that the above problems can be solved by a specific SMC containing a thermosetting resin, a polymerizable unsaturated monomer, crosslinked polystyrene, an inorganic filler, a fiber reinforcing material, a pattern forming material, and a colorant, and have completed the present invention.
That is, the present invention relates to an SMC comprising: the pattern-forming material (F) is a cured product of a composite (X) containing an unsaturated polyester resin and an inorganic filler, and the total light transmittance (JIS K-7361-1) of a molded plate having a thickness of 4mm obtained by molding the cured product containing 1 to 50 parts by mass of the crosslinked polystyrene (C) and 50 to 400 parts by mass of the inorganic filler (D) per 100 parts by mass of the thermosetting resin (A) exceeds 2.5%.
Effects of the invention
The SMC of the present invention can give a molded article having a high visibility of a pattern-forming material and an excellent design, and therefore can be suitably used for housing equipment members such as washbowls, washstands, and bathrooms (Japanese: bathroom facilities ウンタ).
Detailed Description
The SMC of the present invention comprises: 1 or more thermosetting resins (A) selected from unsaturated polyester resins and vinyl ester resins, polymerizable unsaturated monomers (B), crosslinked polystyrene (C), inorganic fillers (D), fiber reinforcements (E), pattern-forming materials (F) and colorants (G), wherein the pattern-forming materials (F) are cured products of a composite (X) comprising an unsaturated polyester resin and an inorganic filler, and the total light transmittance (JIS K-7361-1) of a molded plate having a thickness of 4mm obtained by molding the SMC exceeds 2.5%.
As the thermosetting resin (a), an unsaturated polyester resin and/or a vinyl ester resin is used.
Examples of the polymerizable unsaturated monomer (B) include styrene, vinyltoluene, chlorostyrene, α -methylstyrene, tert-butylstyrene, vinylbenzene, methyl methacrylate, and vinyl acetate. These polymerizable unsaturated monomers (B) may be used alone or in combination of 2 or more.
The content of the polymerizable unsaturated monomer (B) is preferably in the range of 5 to 40 parts by mass with respect to 100 parts by mass of the thermosetting resin (a) in view of more excellent balance between moldability and high design property.
The crosslinked polystyrene (C) can provide a low shrinkage effect while minimizing a reduction in design of the molded article. Specific examples of commercially available products of the crosslinked polystyrene (C) include STAPHYLOID GS-102R (average particle diameter: 20 μm, manufactured by AICA industries, Ltd.), SGP-70C (average particle diameter: 20 μm, manufactured by general chemical industries, Ltd.), and the like. These crosslinked polystyrenes (C) may be used alone or in combination of 2 or more.
The content of the crosslinked polystyrene (C) is in the range of 1 to 50 parts by mass with respect to 100 parts by mass of the thermosetting resin (a), but is preferably in the range of 5 to 30 parts by mass from the viewpoint of more excellent balance between the effect of reducing shrinkage and high design properties.
The inorganic filler (D) is preferably a glass powder in view of further improving the transparency of the molded article. The transparency of the molded article can be expressed by the total light transmittance (JIS K-7361-1).
By using glass powder as the inorganic filler (D), the transparency of the molded article is improved, and if the total light transmittance (JIS K-7361-1) of a molded plate having a thickness of 4mm exceeds 2.5%, other inorganic fillers such as calcium carbonate and aluminum hydroxide can be used in combination.
The average particle diameter of the glass powder is preferably 6 to 16 μm, and more preferably 6 to 7 μm. If the average particle size is larger than 16 μm, the surface of the mold is ground when the molding material flows in the mold during press molding of the molding material, and the molded article is contaminated, so that the design property is lowered, and if the average particle size is smaller than 6 μm, the composite viscosity during production of the molding material is increased, and the production of the molding material may become difficult.
The average particle diameter of the inorganic filler (D) and the particle diameter of the pattern forming material (F) in the present invention are values measured by a laser diffraction scattering method.
The content of the inorganic filler (D) is in the range of 50 to 400 parts by mass with respect to 100 parts by mass of the thermosetting resin (a), but is preferably in the range of 100 to 350 parts by mass from the viewpoint of more excellent design.
As the fiber reinforcement material (E), for example, organic fibers such as glass fibers, metal fibers, ceramic fibers, carbon fibers, aramid fibers, vinylon fibers, polyester fibers, or the like, or a combination thereof can be used. Among them, glass fiber is preferable in view of design. The chopped roving is obtained by cutting roving into chopped strands, and the fiber length is preferably 6-30 mm, and more preferably 12-25 mm. These fiber-reinforced materials (E) may be used alone, or 2 or more of them may be used in combination.
The content of the fiber-reinforced material (E) in the SMC is preferably in the range of 1 to 30 mass% from the viewpoint of the strength properties of the obtained molded article, and more preferably in the range of 10 to 20 mass% from the viewpoint of design.
The pattern forming material (F) is a cured product of a composite (X) containing an unsaturated polyester resin and an inorganic filler.
The pattern forming material (F) preferably has a particle diameter in the range of 100 to 600 μm. If the particle size is less than 100 μm, the visibility in the resulting molded article may be low, and the design may not be improved. When the particle size exceeds 600. mu.m, the particle size may become an obstacle in SMC production. These pattern forming materials (F) may be used alone, or 2 or more of them may be used in combination.
The amount of the pattern forming material (F) to be added is not particularly limited, but is preferably in the range of 0.002 to 0.07 mass% in the molding material from the viewpoint of design.
The compound (X) may contain, as components other than the unsaturated polyester resin and the inorganic filler, various additives such as a colorant, a curing agent, an ultraviolet absorber, a thickener, an antioxidant, a flame retardant, a surfactant, a water repellent, and an oil repellent.
Examples of the inorganic filler used in the composite (X) include aluminum hydroxide, calcium carbonate, magnesium carbonate, barium sulfate, mica, talc, kaolin, clay, silica sand, gypsum, hollow spheres, alumina, glass powder, and cryolite. These inorganic fillers may be used alone, or 2 or more kinds may be used in combination.
Examples of the colorant used in the composite (X) include organic or inorganic pigments and dyes. These colorants may be used alone, or 2 or more thereof may be used in combination.
The curing agent used in the complex (X) is preferably an organic peroxide, and examples thereof include diacyl peroxide compounds, peroxyester compounds, hydroperoxide compounds, ketone peroxide compounds, alkyl perester compounds, and percarbonate compounds. These curing agents may be used alone, or 2 or more kinds may be used in combination.
Examples of the method for producing the pattern forming material (F) include the following methods: the pattern-forming material is obtained by mixing an unsaturated polyester resin, an inorganic filler, a coloring agent, a curing agent and the like to obtain a composite (X), pouring the composite (X) into a metal cylinder so that the depth thereof becomes 10 to 20mm, heating the composite (X) at room temperature for 24 hours or more, preferably 60 to 110 ℃ for 1 to 5 hours to cure the composite (X), pulverizing the cured product obtained by curing the composite by a shear mill or a pin mill, and classifying the pulverized product by a sieve.
Examples of the colorant (G) include organic or inorganic pigments and dyes. These colorants (G) may be used alone or in combination of 2 or more.
The content of the colorant (G) is preferably an amount in which the total light transmittance of a molded plate having a thickness of 4mm obtained by molding the SMC of the invention exceeds 2.5%.
The SMC of the present invention may contain, as components other than the thermosetting resin (a), the polymerizable unsaturated monomer (B), the crosslinked polystyrene (C), the inorganic filler (D), the fiber reinforcing material (E), the pattern forming material (F), and the colorant (G), various additives such as a curing agent, an ultraviolet absorber, a thickener, a release agent, an antioxidant, a flame retardant, a surfactant, a water repellent, and an oil repellent.
When the total light transmittance of a molded plate having a thickness of 4mm obtained by molding the SMC of the present invention exceeds 2.5%, the transparency of the molded article increases, and the visibility of the surface layer of the molded article is improved, and the visibility of the pattern-forming material in the deep layer is also improved, contributing to the improvement of design.
Examples of the thickener used in the SMC of the present invention include metal oxides, metal hydroxides, isocyanate compounds, and the like such as magnesium oxide, magnesium hydroxide, calcium oxide, and calcium hydroxide. These thickeners may be used alone, or 2 or more thereof may be used in combination.
The method for producing the SMC of the present invention is a method for producing the SMC, which comprises adding, as appropriate, components such as a thermosetting resin (a), a polymerizable unsaturated monomer (B), a crosslinked polystyrene (C), an inorganic filler (D), a pattern-forming material (F), a colorant (G), and various additives such as a curing agent, an ultraviolet absorber, a thickener, a thickening agent, a release agent, an antioxidant, a flame retardant, a surfactant, a water repellent agent, and an oil repellent agent, as components other than these, to a mixer such as a general kneader, a planetary kneader, or a kneader, mixing and dispersing the mixture, applying the obtained mixture (hereinafter referred to as a composite) to carrier films provided above and below in a uniform thickness, sandwiching the fiber-reinforcing material (E) between the composite on the above-mentioned carrier films provided above and below, and impregnating the composite with the fiber-reinforcing material (E) by applying pressure to the composite between impregnating rolls, the packaging is performed by a method such as rolling up into a roll shape or folding into a zigzag shape. Further, it is preferable to conduct the aging at a temperature of 25 to 60 ℃ thereafter. As the carrier film, a polyethylene film, a polypropylene film, a laminated film of polyethylene and polypropylene, polyethylene terephthalate, nylon, or the like can be used.
The molded article of the present invention is preferably obtained by a press molding method in which the SMC is compression molded by heating with a press.
The press molding method is a molding method in which a predetermined amount of SMC is charged into a trimming mold (Japanese: シエア, ッジ alloy type) heated to 110 to 180 ℃ in advance, and the mold is closed by a press, and the SMC is molded by the mold. The pressing machine is pressurized at 5 to 30MPa, and the pressure is maintained for 1 to 2 minutes for 1mm of the thickness of the molded article. The SMC was cured in a mold, and then removed from the mold to obtain a molded article.
The molded article of the present invention has a granular pattern appearance, has high visibility of a pattern forming material and excellent design properties, and can be used for members of residential equipment such as washbowls, washstands, and bathroom stands.
The present invention will be described in more detail below with reference to specific examples. The acid value of the resin was measured in accordance with JIS K6901 (2008) 5.3.2.
Synthesis example 1 Synthesis of unsaturated polyester resin (1)
To a 2L glass flask equipped with a nitrogen inlet, a thermometer, a reflux condenser and a stirrer, 88.4 parts by mass of neopentyl glycol, 256.5 parts by mass of propylene glycol, hydrogenated bisphenol a: 222 parts by mass and 490 parts by mass of maleic anhydride were heated under a nitrogen stream. The dehydration condensation reaction was carried out at an internal temperature of 215 ℃ by a conventional method, and 0.4 part by mass of methylhydroquinone was added to the reaction mixture until the solid acid value became 25 (mgKOH/g). The unsaturated polyester resin (1) was obtained by dissolving the unsaturated polyester in a styrene monomer so that the concentration of the unsaturated polyester became 56 mass%.
Synthesis example 2 Synthesis of unsaturated polyester resin (2)
In a 2L glass flask equipped with a nitrogen inlet, a thermometer, a reflux condenser and a stirrer, 213 parts by mass of neopentyl glycol, 239 parts by mass of propylene glycol, 111 parts by mass of phthalic acid, 83 parts by mass of isophthalic acid and 368 parts by mass of maleic anhydride were charged, and heating was started under a nitrogen stream. The dehydration condensation reaction was carried out at an internal temperature of 215 ℃ by a conventional method, and 0.4 part by mass of methylhydroquinone was added to the reaction mixture until the solid acid value became 26 (mgKOH/g). The unsaturated polyester resin (2) was obtained by dissolving the unsaturated polyester in a styrene monomer so that the concentration of the unsaturated polyester became 57 mass%.
Production example 1 production of Pattern Forming Material (F-1)
100 parts by mass of a styrene solution of an unsaturated polystyrene resin (styrene content: 40% by mass), 250 parts by mass of aluminum hydroxide, 5 parts by mass of a white colorant, 1 part by mass of a curing agent, and 2 parts by mass of a curing accelerator were kneaded to obtain a composite (X-1).
The composite (X-1) obtained above was poured into a metal cylinder having a thickness of 15mm, cured at room temperature for 24 hours, and then further heated and cured at 80 ℃ for 3 hours by a drier, to obtain a cured product of the composite (X-1).
The above-mentioned solidified material was coarsely pulverized by a shear pulverizer, finely pulverized by a pin mill, and sieved with 165-mesh and 28-mesh metal mesh sieves (JIS Z8801-1) to obtain a white granular pattern-forming material (F-1) having a particle size of 100 to 600. mu.m.
Production example 3 production of Pattern Forming Material (F-2)
A composite (X-2) was obtained in the same manner as in production example 1 except that the white colorant in production example 1 was changed to a brown colorant, and a brown granular pattern-forming material (F-2) having a particle diameter of 100 to 600 μm was obtained.
Production example 4 production of Pattern Forming Material (F-3)
A composite (X-3) was obtained in the same manner as in production example 1 except that the white colorant in production example 1 was changed to a brown colorant, and the metal mesh used for classification was changed to 165 mesh and 60 mesh, to obtain a brown granular pattern-forming material (F-3) having a particle size of 100 to 250 μm.
Production example 2 production of Pattern Forming Material (F-4)
A composite (X-4) was obtained in the same manner as in production example 1 except that the white colorant in production example 1 was changed to a black colorant, and a black granular pattern forming material (F-4) having a particle diameter of 100 to 600 μm was obtained.
Example 1 production and evaluation of SMC (1)
70 parts by mass of an unsaturated polyester resin (1), 30 parts by mass of an unsaturated polyester resin (2), 20 parts by mass of crosslinked polystyrene (StaphyLOID GS-102R manufactured by AICA Kabushiki Kaisha, hereinafter abbreviated as "crosslinked polystyrene (C-1)"), inorganic filler (glass FRIT CF0017-05C06 manufactured by FRIT Japan, average particle diameter 6-7 μm, hereinafter abbreviated as "inorganic filler (D-1)") 210 parts by mass, 36 parts by mass of styrene monomer, thickener (BYK-W9010 manufactured by BYK Co., Ltd.) 3 parts by mass, polymerization inhibitor (methyl hydroquinone) 0.03 parts by mass, colorant (PT 6885 manufactured by Yuguo Kabushiki Kaisha, hereinafter abbreviated as "colorant (G-1)") 1 part by mass, internal mold release agent (zinc stearate) 5.5 parts by mass, and hardener (Kayakon Kan6.75 parts by KaC-6.75 manufactured by Kan6 manufactured by Noura Ka K Karaya) manufactured by Noura Karaki Karaya, 3.2 parts by mass of a thickener ("Magmicon (Japanese: マグミク, mouth ン) MD 504-2", manufactured by Yuguo pigment Co., Ltd.), 10 parts by mass of a pattern forming material (F-1), 0.15 parts by mass of a pattern forming material (F-2), and 0.2 parts by mass of a pattern forming material (F-3) were kneaded to obtain a composite (1).
The composite (1) obtained above was coated on a PP film, a glass fiber roving (RS 480PB-549 MJ manufactured by ritonanshan textile co., ltd.) cut into 1 inch (25mm) was prepared so that the fiber content became 14 mass%, and the roving was uniformly dropped from the air onto the coated resin so that the fiber was non-directional and the thickness was uniform, sandwiched by the film similarly coated with the composite (1) and impregnated with the glass fiber, and then left to stand in a thermostatic bath at 45 ℃ for 24 hours, to obtain SMC (1).
[ production of molded article ]
The SMC (1) thus obtained was peeled from a PP film and cut into 25 cm. times.25 cm, and the cut product was placed at the center of a heated 30 cm. times.30 cm flat plate mold having an upper mold at 145 ℃ and a lower mold at 130 ℃ and was press-molded under a pressure of 10MPa for 4 minutes to obtain a flat plate-shaped molded article (1) having a thickness of 4 mm.
[ measurement of light transmittance ]
The total light transmittance of the molded article (1) obtained above was measured in accordance with JIS K-7361-1 using a haze meter NDH5000 manufactured by Nippon Denshoku industries Co., Ltd.
[ evaluation of design ]
The molded article (1) obtained above was visually observed, and the appearance of the pattern forming material was evaluated according to the following criteria.
O: the pattern forming material of the surface layer can be seen, and the pattern forming material in the thickness direction can be seen well
And (delta): the pattern forming material of the surface layer can be seen, and the pattern forming material in the thickness direction can be seen slightly
X: pattern forming material of which only surface layer is visible
[ measurement of gloss ]
The 60-degree specular gloss according to JIS K-7105 was measured using a portable gloss meter IG310 manufactured by horiba, Ltd.
Example 2 production and evaluation of SMC (2)
SMC (2) and molded article (2) were prepared in the same manner as in example 1 except that the inorganic filler (D-1) used in example 1 was changed to an inorganic filler (aluminum hydroxide CW-308, manufactured by Sumitomo chemical Co., Ltd., average particle diameter 10 μm; hereinafter, simply referred to as "inorganic filler (D-2)"), 10 parts by mass of the pattern-forming material (F-1) was changed to 7 parts by mass, and 0.1 part by mass of the pattern-forming material (F-4) and 2.5 parts by mass of the colorant (G-1) were used instead of the pattern-forming material (F-2) and the pattern-forming material (F-3), and evaluations were performed.
Comparative example 1 production and evaluation of SMC (R1)
SMC (R1) and molded article (R1) were prepared and evaluated in the same manner as in example 1, except that 1 part by mass of the colorant (G-1) used in example 1 was changed to 2.5 parts by mass.
Comparative example 2 production and evaluation of SMC (R2)
SMC (R2) and molded article (R2) were prepared and evaluated in the same manner as in example 1, except that 1 part by mass of the colorant (G-1) used in example 1 was changed to 3 parts by mass.
The evaluation results of the SMCs (1) to (2) and (R1) to (R2) obtained above are shown in table 1.
[ Table 1]
It can be confirmed that: the SMC (1) and (2) of examples 1 and 2 can give a molded article having high visibility of the pattern forming material and excellent design.
On the other hand, in comparative examples 1 and 2, SMC were found to have a total light transmittance of the molded plate of less than 2.5% of the lower limit of the present invention, and it was found that the resulting molded articles had insufficient design properties.
Claims (4)
1. A sheet molding compound, comprising: 1 or more thermosetting resins A selected from unsaturated polyester resins and vinyl ester resins, polymerizable unsaturated monomers B, crosslinked polystyrene C, inorganic fillers D, fiber reinforcements E, pattern-forming materials F, and colorants G,
the pattern forming material F is a cured product of a composite X containing an unsaturated polyester resin and an inorganic filler,
the crosslinked polystyrene C is contained in an amount of 1 to 50 parts by mass and the inorganic filler D is contained in an amount of 50 to 400 parts by mass based on 100 parts by mass of the thermosetting resin A,
a molded plate having a thickness of 4mm obtained by molding the same had a total light transmittance of more than 2.5%, the total light transmittance being measured in accordance with JIS K-7361-1.
2. The sheet molding compound according to claim 1, wherein the inorganic filler material D is a glass powder having an average particle diameter of 6 to 16 μm.
3. A sheet-like moulding compound according to claim 1 or 2, wherein the grain size of the pattern forming material F is between 100 μm and 600 μm.
4. A molded article of the sheet-like molding compound according to any one of claims 1 to 3.
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| JP2017001933A (en) * | 2015-06-16 | 2017-01-05 | Dic株式会社 | Molding material for artificial marble, and the artificial marble |
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| JP2019038953A (en) * | 2017-08-25 | 2019-03-14 | ジャパンコンポジット株式会社 | Unsaturated polyester resin composition, molding material, molding, and artificial marble |
| JP2019048964A (en) * | 2017-09-12 | 2019-03-28 | ジャパンコンポジット株式会社 | Unsaturated polyester resin composition, molding material, molded article, and artificial marble |
| JP2019157074A (en) * | 2018-03-16 | 2019-09-19 | ジャパンコンポジット株式会社 | Unsaturated polyester resin composition, molding material, molded article, and artificial marble |
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| JPH02102156A (en) * | 1988-10-12 | 1990-04-13 | Hitachi Chem Co Ltd | Production of semitransparent artificial stone |
| JPH11105499A (en) * | 1997-10-02 | 1999-04-20 | Kubota Corp | Decorating frp molding |
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| JPH06299055A (en) * | 1993-04-15 | 1994-10-25 | Sekisui Chem Co Ltd | Production of artificial marble |
| CN101643534A (en) * | 2009-09-08 | 2010-02-10 | 无锡新宏泰电器科技股份有限公司 | Marbling polyester molding compound for medium-high voltage appliances and preparation method thereof |
| JP2017001933A (en) * | 2015-06-16 | 2017-01-05 | Dic株式会社 | Molding material for artificial marble, and the artificial marble |
| CN107848161A (en) * | 2015-07-01 | 2018-03-27 | 株式会社可乐丽 | Resin plate and its manufacture method and products formed and its manufacture method with pearly-lustre decorative pattern |
| JP2019038953A (en) * | 2017-08-25 | 2019-03-14 | ジャパンコンポジット株式会社 | Unsaturated polyester resin composition, molding material, molding, and artificial marble |
| JP2019048964A (en) * | 2017-09-12 | 2019-03-28 | ジャパンコンポジット株式会社 | Unsaturated polyester resin composition, molding material, molded article, and artificial marble |
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