JP2022056029A - Resin composition and molding - Google Patents

Abstract

To provide a resin composition which can extremely enhance flame retardance of an obtained molding, and can enhance impact resistance.SOLUTION: A resin composition contains an aromatic polycarbonate resin, a sulfone resin having a structure represented by the following formula (1), an inorganic filler, a phosphorus-containing compound, and a silicon-containing compound or silicon-containing particles, in which a content of the inorganic filler is 20 pts.wt. or more and 30 pts.wt. or less with respect to 100 pts.wt. of the total of a content of the aromatic polycarbonate resin and a content of the sulfone resin, a content of the phosphorus-containing compound is 8 pts.wt. or more and 20 pts.wt. or less, and a weight ratio of the content of the inorganic filler to the content of the phosphorous-containing compound is 1.3 or more and 2.4 or less.SELECTED DRAWING: None

Description

The present invention relates to a resin composition containing an aromatic polycarbonate resin. The present invention also relates to a molded product containing an aromatic polycarbonate resin.

Thermoplastic resins such as polycarbonate resins are excellent in durability, light weight, moldability and the like. Therefore, the thermoplastic resin is used in various fields such as the construction field, the home appliance field, and the transportation field.

Specific applications of thermoplastic resins include exterior and interior materials for transport aircraft such as railroad vehicles, aircraft, ships and automobiles. Examples of the exterior material and interior material include ceilings, window frames, armrests, backrests, tables and the like.

In the above applications, it is required that the molded product using the thermoplastic resin has excellent flame retardancy and impact resistance. However, since the thermoplastic resin is generally flammable and vulnerable to impact, studies have been widely conducted to improve the flame retardancy and impact resistance of the molded product using the thermoplastic resin.

Patent Document 1 below discloses a polycarbonate resin composition containing a polycarbonate resin, a phosphorus-based flame retardant, a silicone-based flame retardant, and an inorganic filler.

WO2018 / 047693A1

The molded product obtained from the resin composition described in Patent Document 1 can improve flame retardancy and impact resistance to some extent, but is not sufficient, and further improvement in flame retardancy and impact resistance is required. ..

An object of the present invention is to provide a resin composition capable of significantly increasing the flame retardancy of the obtained molded product and also increasing the impact resistance. Another object of the present invention is to provide a molded product using the above resin composition.

According to a broad aspect of the present invention, it contains an aromatic polycarbonate resin, a salphon resin having a structure represented by the following formula (1), an inorganic filler, a phosphorus-containing compound, and a silicon-containing compound or silicon-containing particles. The content of the inorganic filler is 20 parts by weight or more and 30 parts by weight or less with respect to a total of 100 parts by weight of the aromatic polycarbonate resin and the salfone resin. The content of the phosphorus-containing compound is 8 parts by weight or more and 20 parts by weight or less with respect to a total of 100 parts by weight of the content and the content of the salphon resin, and the phosphorus-containing compound is the content of the inorganic filler. A resin composition having a weight ratio of 1.3 or more and 2.4 or less with respect to the content of the above is provided.

In certain aspects of the resin composition according to the present invention, the sulfone resin is a polyphenylsulfone resin.

In a specific aspect of the resin composition according to the present invention, the content of the salphon resin is 5% by weight or more and 35% by weight in a total of 100% by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. % Or less.

In certain aspects of the resin composition according to the invention, the inorganic filler is talc.

In a specific aspect of the resin composition according to the present invention, the silicon-containing compound and the silicon-containing particles are added to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. The total content is 2 parts by weight or more and 20 parts by weight or less.

In certain aspects of the resin composition according to the invention, the resin composition comprises the silicon-containing particles, the silicon-containing particles comprising a core and a shell disposed on the surface of the core. Is.

In a specific aspect of the resin composition according to the present invention, the resin composition contains a fluororesin, and the content of the aromatic polycarbonate resin and the content of the salphon resin are 100 parts by weight in total. The content of the fluororesin is 0.5 parts by weight or more and 2 parts by weight or less.

According to a broad aspect of the present invention, there is provided a molded body in which the above-mentioned resin composition is molded.

In certain aspects of the molded body according to the present invention, the molded body is in the form of a sheet.

In a particular aspect of the molded body according to the present invention, the average maximum heat generation rate measured under the conditions of heater radiant heat of 50 kW / m ² and ignition is 90 kW / m ² or less in accordance with ISO5660-1.

In a specific aspect of the molded product according to the present invention, in the Fire integrity test conducted under the conditions of heater radiant heat of 50 kW / m ² and ignition in accordance with ISO5660-1, a hole of 3 mm or more in the combustion residue after the test. No space is generated.

In certain aspects of the molded body according to the present invention, the molded body is an interior material of a transport aircraft.

The resin composition according to the present invention contains an aromatic polycarbonate resin, a salphon resin having a structure represented by the above formula (1), an inorganic filler, a phosphorus-containing compound, and a silicon-containing compound or silicon-containing particles. .. In the resin composition according to the present invention, the content of the inorganic filler is 20 parts by weight or more and 30 parts by weight or less with respect to a total of 100 parts by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. be. In the resin composition according to the present invention, the content of the phosphorus-containing compound is 8 parts by weight or more and 20 parts by weight or less with respect to a total of 100 parts by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. Is. In the resin composition according to the present invention, the weight ratio of the content of the inorganic filler to the content of the phosphorus-containing compound is 1.3 or more and 2.4 or less. Since the resin composition according to the present invention has the above-mentioned structure, the flame retardancy of the obtained molded product can be considerably enhanced, and the impact resistance of the molded product can also be enhanced.

Hereinafter, the present invention will be described in detail.

The resin composition according to the present invention contains an aromatic polycarbonate resin, a salphon resin having a structure represented by the following formula (1), an inorganic filler, a phosphorus-containing compound, and a silicon-containing compound or silicon-containing particles. ..

In the resin composition according to the present invention, the content of the inorganic filler is 20 parts by weight or more and 30 parts by weight or less with respect to a total of 100 parts by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. be. In the resin composition according to the present invention, the content of the phosphorus-containing compound is 8 parts by weight or more and 20 parts by weight or less with respect to a total of 100 parts by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. Is. In the resin composition according to the present invention, the weight ratio of the content of the inorganic filler to the content of the phosphorus-containing compound (content of the inorganic filler / content of the phosphorus-containing compound) is 1.3 or more. It is 4 or less.

Since the resin composition according to the present invention has the above-mentioned structure, the flame retardancy of the obtained molded product can be considerably enhanced, and the impact resistance of the molded product can also be enhanced. The resin composition according to the present invention can enhance both flame retardancy and impact resistance.

In the resin composition according to the present invention, carbides (chars) are satisfactorily molded on the surface of the molded product when the molded product is burned. Therefore, in the resin composition according to the present invention, in the Fire integrity test based on ISO 5660-1, it is possible to suppress the generation of holes of 3 mm or more in the combustion residue after the test.

In this specification, the silicon-containing compound and the silicon-containing particles may be collectively referred to as a silicon-containing substance.

Hereinafter, details of the components contained in the resin composition according to the present invention will be described.

[Aromatic polycarbonate resin]
The resin composition according to the present invention contains an aromatic polycarbonate resin. Only one kind of the aromatic polycarbonate resin may be used, or two or more kinds thereof may be used in combination.

From the viewpoint of further enhancing flame retardancy and impact resistance, the aromatic polycarbonate resin is preferably an aromatic polycarbonate resin having a structural unit represented by the following formula (2).

In the above formula (2), R1 and R2 represent a hydrogen atom, an alkyl group having 1 or more and 20 or less carbon atoms, a group in which a substituent is bonded to an alkyl group having 1 or more and 20 or less carbon atoms, or an aryl group, respectively. In the above formula (2), R3 and R4 each represent a hydrogen atom or an alkyl group.

When R3 or R4 in the above formula (2) is an alkyl group, the number of carbon atoms of the alkyl group is preferably 1 or more, preferably 6 or less, more preferably 3 or less, still more preferably 2 or less. be. Preferred alkyl groups include methyl group, ethyl group, propyl group, butyl group, tert-butyl group, pentyl group, heptyl group and the like.

The aromatic polycarbonate resin may have only one type of structural unit represented by the above formula (2), or may have two or more types.

Examples of the compound for introducing the structural unit represented by the above formula (2) in obtaining the aromatic polycarbonate resin include 2,2-bis (4-hydroxyphenyl) propane (bisphenol A) and 2,2-. Bis (4-hydroxy-3-methylphenyl) propane, 2,2-bis (4-hydroxyphenyl) butane, 2,2-bis (4-hydroxyphenyl) pentane, 2,2-bis (4-hydroxyphenyl) -4-Methylpentane, 2,2-bis (4-hydroxy-3-methylphenyl) propane (bisphenol C), 2,2-bis (4-hydroxy-3- (1-methylethyl) phenyl) propane, 2 , 2-bis (4-hydroxy-3-tert-butylphenyl) propane, 2,2-bis (4-hydroxy-3- (1-methylpropyl) phenyl) propane, 2,2-bis (4-hydroxy- 3-Cyclohexylphenyl) propane, 2,2-bis (4-hydroxy-3-phenylphenyl) propane, 1,1-bis (4-hydroxyphenyl) decane, 1,1-bis (4-hydroxyphenyl) cyclohexane ( Bisphenol Z), 1,1-bis (4-hydroxyphenyl) -1-phenylethane, bis (4-hydroxyphenyl) phenylmethane, 1,1-bis (4-hydroxy-3-methylphenyl) cyclohexane, 1, 1-bis (4-hydroxy-3,5-dimethylphenyl) cyclohexane, 1,1-bis (4-hydroxy-3- (1-methylethyl) phenyl) cyclohexane, 1,1-bis (4-hydroxy-3) -Tert-Butylphenyl) cyclohexane, 1,1-bis (4-hydroxy-3- (1-methylpropyl) phenyl) cyclohexane, 1,1-bis (4-hydroxy-3-cyclohexylphenyl) cyclohexane, 1,1 -Bis (4-hydroxy-3-phenylphenyl) cyclohexane, 1,1-bis (4-hydroxy-3-methylphenyl) -1-phenylethane, 1,1-bis (4-hydroxy-3,5-dimethyl) Phenyl) -1-phenylethane, 1,1-bis (4-hydroxy-3- (1-methylethyl) phenyl) -1-phenylethane, 1,1-bis (4-hydroxy-3-tert-butylphenyl) ) -1-Phenylethane, 1,1-bis (4-hydroxy-3- (1-methylpropyl) phenyl) -1-phenylethane, 1,1-bis (4-hydroxy-3-sik) Lohexylphenyl) -1-phenylethane, 1,1-bis (4-hydroxy-3-phenylphenyl) -1-phenylethane, 1,1-bis (4-hydroxyphenyl) cyclopentane, 1,1-bis (4-Hydroxyphenyl) cyclooctane, 4,4'-(1,3-phenylenediisopropyridene) bisphenol, 4,4'-(1,4-phenylenediisopropyridene) bisphenol, 9,9-bis (4) -Hydroxyphenyl) fluorene, 9,9-bis (4-hydroxy-3-methylphenyl) fluorene, 4,4'-dihydroxybenzophenone, 4,4'-dihydroxyphenyl ether, 4,4'-dihydroxybiphenyl, 1, Examples thereof include 1-bis (4-hydroxyphenyl) -3,3-5-trimethylcyclohexane and 1,1-bis (4-hydroxy-6-methyl-3-tert-butylphenyl) butane.

From the viewpoint of further enhancing flame retardancy and impact resistance, the compound for introducing the structural unit represented by the above formula (2) when obtaining the above aromatic polycarbonate resin is 2,2-bis (2,2-bis (). With 4-hydroxyphenyl) propane (bisphenol A), 2,2-bis (4-hydroxy-3-methylphenyl) propane (bisphenol C), or 1,1-bis (4-hydroxyphenyl) cyclohexane (bisphenol Z) It is preferably present, and more preferably 2,2-bis (4-hydroxyphenyl) propane (bisphenol A). The aromatic polycarbonate resin preferably has a structural unit derived from such a preferred compound.

Examples of commercially available aromatic polycarbonate resins having a structural unit derived from a bisphenol A type compound include "Iupilon E series" manufactured by Mitsubishi Gas Chemical Company.

Examples of commercially available aromatic polycarbonate resins having structural units derived from bisphenol Z-type compounds include "Panlite series" manufactured by Teijin Chemicals Ltd. and "Iupilon Z series" manufactured by Mitsubishi Gas Chemicals Ltd.

The viscosity average molecular weight (Mv) of the aromatic polycarbonate resin is preferably 10,000 or more, more preferably 15,000 or more, preferably 50,000 or less, and more preferably 40,000 or less. When the viscosity average molecular weight is at least the above lower limit and at least the above upper limit, flame retardancy and impact resistance can be further enhanced.

The aromatic polycarbonate resin may or may not have a branched structure.

The aromatic polycarbonate resin can be produced by a conventionally known method. Examples of the method for producing the aromatic polycarbonate resin include a melt polymerization method and a phase interface method.

As a method for producing an aromatic polycarbonate resin by the above-mentioned melt polymerization method, a method of reacting a diphenol compound and a diphenyl carbonate compound in a molten state by utilizing a transesterification reaction can be mentioned. In this method, for example, a diphenol compound and a diphenyl carbonate compound are placed in a reactor equipped with a stirrer and a distillate concentrator, and the reactor is heated to a predetermined temperature under a nitrogen gas atmosphere to melt the compound. Can be in a state. A branching agent, a chain terminator, or the like may be used in the method for producing an aromatic polycarbonate resin by the above-mentioned melt polymerization method.

As a method for producing an aromatic polycarbonate resin by the above phase interface method, a diphenol compound, a carbonate halide or an aromatic dicarboxylic acid dihalide, a branching agent if necessary, and a chain terminator if necessary. There is a method of reacting with. In this method, a carbonate halide may be used, an aromatic dicarboxylic acid dihalide may be used, or a carbonate halide and an aromatic dicarboxylic acid dihalide may be used.

The diphenol compound is not particularly limited. As the diphenol compound, a conventionally known diphenol compound can be used. Only one kind of the above diphenol compound may be used, or two or more kinds thereof may be used in combination.

The diphenyl carbonate compound is not particularly limited. As the diphenyl carbonate compound, a conventionally known diphenyl carbonate compound can be used. Only one kind of the above diphenyl carbonate compound may be used, or two or more kinds thereof may be used in combination.

The above-mentioned carbonate halide is not particularly limited. As the above-mentioned carbonate halide, a conventionally known carbonate halide can be used. Only one kind of the above-mentioned carbonate halide may be used, or two or more kinds may be used in combination.

The carbonate halide is preferably phosgene.

The aromatic dicarboxylic acid dihalide is not particularly limited. As the aromatic dicarboxylic acid dihalide, a conventionally known aromatic dicarboxylic acid dihalide can be used. As the aromatic dicarboxylic acid dihalide, only one kind may be used, or two or more kinds may be used in combination.

The aromatic dicarboxylic acid dihalide is preferably a benzenedicarboxylic acid dihalide.

The branching agent is not particularly limited. As the branching agent, a conventionally known branching agent can be used. As the branching agent, only one kind may be used, or two or more kinds may be used in combination.

The branching agent is preferably a trifunctional phenol compound or a tetrafunctional phenol compound, and more preferably triphenol, tetraphenol, or a phenol compound having at least three functional groups having low reactivity. , 1,1,1-Tris- (p-hydroxyphenyl) ethane is more preferred. By using these preferable branching agents, an aromatic polycarbonate resin having a branched structure can be satisfactorily obtained.

The branching agent may be a phenol compound having an amine functional group. When the branching agent is a phenol compound having an amine functional group, the amine functional group acts as an active functional group, and branching of the aromatic polycarbonate resin occurs through the amide bond.

The chain terminator is not particularly limited. As the chain terminator, a conventionally known chain terminator can be used. Only one kind of the chain terminator may be used, or two or more kinds thereof may be used in combination.

From the viewpoint of obtaining an aromatic polycarbonate resin satisfactorily, the chain terminator is described in Phenol; p-chlorophenol; p-tert-butylphenol; 2,4,6-tribromophenol; DE-A 2 842 005. Long-chain alkylphenols such as 4- (1,3-tetramethylbutyl) -phenols and monoalkylphenols with 8 to 20 carbon atoms in the alkyl substituents; or 3,5-di-tert-butylphenol, p- Alkylphenols such as isooctylphenol, p-tert-octylphenol, p-dodecylphenol, 2- (3,5-dimethylheptyl) -phenol, and 4- (3,5-dimethylheptyl) -phenol are preferable.

From the viewpoint of obtaining an aromatic polycarbonate resin satisfactorily, the content of the chain terminator is preferably 0.5 mol or more, and preferably 10 mol or less with respect to 100 mol of the diphenol compound.

The content of the aromatic polycarbonate resin in 100% by weight of the resin composition is preferably 50% by weight or more, more preferably 55% by weight or more, preferably 85% by weight or less, and more preferably 80% by weight or less. Is. When the content of the aromatic polycarbonate resin is at least the above lower limit and at least the above upper limit, flame retardancy and impact resistance can be further enhanced.

[Salphon resin]
The resin composition according to the present invention contains a salphon resin having a structure represented by the following formula (1). The salphon resin is a thermoplastic resin. By containing the salphon resin in the resin composition, carbides (chars) are satisfactorily formed on the surface of the molded product even when the molded product burns, and the supply amount of oxygen can be suppressed. As a result, the flame retardancy of the molded product can be enhanced. When the resin composition does not contain the salphon resin, it is difficult to increase the flame retardancy. Further, when the resin composition contains both the salphon resin and the phosphorus-containing compound, the excipient and flame retardancy can be enhanced. Only one kind of the salphon resin may be used, or two or more kinds thereof may be used in combination.

The salphon resin has a structural unit represented by the above formula (1).

Examples of the sulfone resin include polysulfone resin (PSU), polyethersulfone resin (PESU), polyphenylsulfone resin (PPSU) and the like.

From the viewpoint of further enhancing flame retardancy and impact resistance, the sulfone resin is preferably a polyethersulfone resin or a polyphenylsulfone resin, and more preferably a polyphenylsulfone resin.

The content of the salphon resin is preferably 5% by weight or more, more preferably 8% by weight or more, still more preferably 10% of the total 100% by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. By weight or more, preferably 35% by weight or less, more preferably 30% by weight or less, still more preferably 25% by weight or less. When the content of the salphon resin is at least the above lower limit and at least the above upper limit, the flame retardancy can be further enhanced.

[Inorganic filler]
The resin composition according to the present invention contains an inorganic filler. When the resin composition contains the inorganic filler, the flame retardancy of the molded product can be enhanced. When the resin composition does not contain the inorganic filler, it is difficult to increase the flame retardancy. Only one kind of the above-mentioned inorganic filler may be used, or two or more kinds thereof may be used in combination.

Examples of the inorganic filler include talc, mica, montmorillonite, diatomaceous earth, alumina, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, and base. Magnesium Carbonate, Calcium Carbonate, Magnesium Carbonate, Zinc Carbonate, Barium Carbonate, Dosonite, Hydrotalcite, Calcium Sulfate, Barium Sulfate, Gypsum Fiber, Potassium Salt, Clay Minerals, Glass Fiber, Glass Beads, Silica Balun, Aluminum Noxide, Boron Nitride, Carbon Black, Graphite, Carbon Fiber, Carbon Balun, Charcoal Powder, Metal Powder, Potassium Titanium, Magnesium Sulfate, Lead Zirconate Titanium, Aluminum Borate, Molybdenum Sulfide, Stainless Fiber, Zinc Borate, Magnetic Powder, Slag Examples thereof include fibers, fly ash, silica-alumina fibers, alumina fibers and zirconia fibers.

From the viewpoint of further enhancing flame retardancy and impact resistance, the inorganic filler is preferably talc, mica, or montmorillonite, and more preferably talc.

The talc may be compressed talc. When the talc is compressed talc, the resin composition can be easily processed.

The inorganic filler may be surface-treated such as silaneization treatment, plasma treatment, and ashing treatment. When the inorganic filler is a surface-treated inorganic filler such as a silaneization treatment, the compatibility with the aromatic polycarbonate resin becomes even better. The silanized inorganic filler is not included in the silicon-containing particles.

From the viewpoint of further improving flame retardancy and impact resistance, the volume average particle size (D50) of the inorganic filler is preferably 1 μm or more, more preferably 1.5 μm or more, and preferably 6 μm or less. It is more preferably 5 μm or less. When the volume average particle diameter (D50) of the inorganic filler is not more than the upper limit, a molded product having a small center of gravity distance between adjacent inorganic fillers and a large number of particles of the inorganic filler can be obtained. A molded body having a small center of gravity distance between adjacent inorganic fillers and a large number of particles of the inorganic filler is more excellent in flame retardancy and gas barrier property. If the distance between the centers of gravity between adjacent inorganic fillers is small and the number of particles of the inorganic filler is large, even if the molded product burns, the amount of oxygen flowing into the gaps between the inorganic fillers can be suppressed, and the flammability generated during combustion can be suppressed. It is possible to suppress the release of sex gas. Further, a molded body having a small center of gravity distance between adjacent inorganic fillers and a large number of particles of the inorganic filler tends to have excellent impact resistance.

The volume average particle diameter of the inorganic filler is an average diameter measured on a volume basis, and is a value of a median diameter (D50) of 50%. The volume average particle diameter (D50) can be measured by a laser diffraction / scattering method, an image analysis method, a Coulter method, a centrifugal sedimentation method, or the like. The volume average particle diameter (D50) of the inorganic filler is preferably determined by measurement by a laser diffraction / scattering method.

The content of the inorganic filler in 100% by weight of the resin composition is preferably 14% by weight or more, more preferably 16% by weight or more, preferably 23% by weight or less, more preferably 20% by weight or less, and further. It is preferably 19% by weight or less. When the content of the inorganic filler is at least the above lower limit, the flame retardancy can be further improved. When the content of the inorganic filler is not more than the above upper limit, the impact resistance can be further improved.

The content of the inorganic filler is preferably 20 parts by weight or more, more preferably 24 parts by weight or more, preferably 40 parts by weight or less, and more preferably 35 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin. Below, it is more preferably 30 parts by weight or less. When the content of the inorganic filler is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the inorganic filler is not more than the above upper limit, the impact resistance can be further improved.

The content of the inorganic filler is 20 parts by weight or more and 30 parts by weight or less with respect to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. When the content of the inorganic filler is at least the above lower limit, the flame retardancy can be significantly enhanced. When the content of the inorganic filler is not more than the above upper limit, the impact resistance can be enhanced. The content of the inorganic filler is preferably 24 parts by weight or more, preferably 28 parts by weight or less, based on 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. .. When the content of the inorganic filler is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the inorganic filler is not more than the above upper limit, the impact resistance can be further improved.

The weight ratio of the content of the inorganic filler to the content of the phosphorus-containing compound is defined as a weight ratio (content of the inorganic filler / content of the phosphorus-containing compound). The weight ratio (content of the inorganic filler / content of the phosphorus-containing compound) is 1.3 or more and 2.4 or less. When the weight ratio (content of the inorganic filler / content of the phosphorus-containing compound) is equal to or higher than the lower limit and lower than the upper limit, the char is well formed, the flame retardancy is considerably enhanced, and the impact resistance is improved. Can be enhanced. The weight ratio (content of the inorganic filler / content of the phosphorus-containing compound) is preferably 1.5 or more, and preferably 2.2 or less. When the weight ratio (content of the inorganic filler / content of the phosphorus-containing compound) is at least the above lower limit and at least the above upper limit, char is well formed, and flame retardancy and impact resistance are further enhanced. Can be done.

[Phosphorus-containing compound]
The resin composition according to the present invention contains a phosphorus-containing compound. The phosphorus-containing compound is a compound having a phosphorus atom. When the resin composition contains the phosphorus-containing compound, formability and flame retardancy can be enhanced. When the resin composition does not contain the phosphorus-containing compound, the formability is lowered and the flame retardancy is lowered. Only one kind of the phosphorus-containing compound may be used, or two or more kinds thereof may be used in combination.

From the viewpoint of further enhancing the flame retardancy, the phosphorus-containing compound is preferably a phosphorus-based flame retardant.

The phosphorus-containing compound may be a phosphorus-containing compound having a halogen atom, a phosphorus-containing compound having no halogen atom, a phosphorus-containing compound having no halogen atom, and a phosphorus-containing compound having a halogen atom. It may be a mixture with a compound.

The phosphorus-containing compound may be any compound containing a phosphorus atom, and may be a compound derived from resorcinol, hydroquinone, bisphenol A, diphenylphenol, or the like.

Examples of the phosphorus-containing compound include a phosphoric acid monomer, a phosphoric acid oligomer, a phosphonic acid ester, an organophosphite, a phosphonate, a phosphonate amine, a phosphate, a phosphazene, and a phosphoric acid ester.

From the viewpoint of further enhancing the flame retardancy, the phosphorus-containing compound is preferably a phosphoric acid ester. The phosphoric acid ester is a compound having a phosphoric acid ester structure.

The phosphoric acid ester may be a phosphoric acid monoester, a phosphoric acid diester, or a phosphoric acid triester.

Examples of the phosphoric acid ester include tributyl phosphate, triphenyl phosphate, tricresyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, diphenyl-2-ethyl cresyl phosphate, tri- (isopropylphenyl) phosphate, and resorcinol cross-linked diphosphate. And bisphenol A cross-linked diphosphate and the like. The phosphoric acid ester is preferably an oligomeric phosphoric acid ester derived from bisphenol A.

The content of the phosphorus-containing compound in 100% by weight of the resin composition is preferably 6% by weight or more, more preferably 8% by weight or more, preferably 12% by weight or less, and more preferably 10% by weight or less. be. When the content of the phosphorus-containing compound is at least the above lower limit, the flame retardancy can be further improved. When the content of the phosphorus-containing compound is not more than the above upper limit, the impact resistance can be further improved.

The content of the phosphorus-containing compound is 8 parts by weight or more and 20 parts by weight or less with respect to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. When the content of the phosphorus-containing compound is at least the above lower limit, the flame retardancy can be significantly enhanced. When the content of the phosphorus-containing compound is not more than the above upper limit, the impact resistance can be enhanced. The content of the phosphorus-containing compound is preferably 9 parts by weight or more, preferably 15 parts by weight or less, based on 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. More preferably, it is 12 parts by weight or less. When the content of the phosphorus-containing compound is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the phosphorus-containing compound is not more than the above upper limit, the impact resistance can be further improved.

[Silicon-containing substances]
The resin composition according to the present invention contains a silicon-containing compound or silicon-containing particles. The resin composition according to the present invention contains a silicon-containing substance. The silicon-containing substance is a silicon-containing compound or silicon-containing particles. When the resin composition contains the silicon-containing substance, flame retardancy can be enhanced. When the resin composition does not contain the silicon-containing substance, the flame retardancy may be inferior. Only one kind of the silicon-containing compound may be used, or two or more kinds thereof may be used in combination.

The silicon-containing compound is a compound having a silicon atom. The silicon-containing particles are particles having a silicon atom. The resin composition according to the present invention may contain the above-mentioned silicon-containing compound, the above-mentioned silicon-containing particles, or may contain both the above-mentioned silicon-containing compound and the above-mentioned silicon-containing particles.

Silicon-containing compounds:
From the viewpoint of further enhancing the flame retardancy, the silicon-containing compound is preferably a silicone-based flame retardant, and preferably a polyorganosiloxane.

From the viewpoint of further enhancing the flame retardancy, the polyorganosiloxane preferably has an aromatic skeleton. Examples of the polyorganosiloxane having the aromatic skeleton include polydiphenylsiloxane, polymethylphenylsiloxane, polydimethyldiphenylsiloxane, and cyclic siloxane having a phenyl group.

The polyorganosiloxane may have a functional group such as a silanol group, an epoxy group, an alkoxy group, a hydrosilyl group, and a vinyl group. When the polyorganosiloxane has these functional groups, the compatibility between the polyorganosiloxane and the aromatic polycarbonate resin can be improved, the reactivity at the time of combustion can be improved, and as a result, the flame retardancy can be improved. Can be enhanced.

When the polyorganosiloxane has the silanol group, the content of the silanol group in 100% by weight of the polyorganosiloxane is preferably 1% by weight or more, more preferably 2% by weight or more, still more preferably 3% by weight. % Or more, particularly preferably 5% by weight or more. When the polyorganosiloxane has the silanol group, the content of the silanol group in 100% by weight of the polyorganosiloxane is preferably 10% by weight or less, more preferably 9% by weight or less, still more preferably 8% by weight. % Or less, particularly preferably 7.5% by weight or less. When the content of the silanol group is at least the above lower limit and at least the above upper limit, the flame retardancy can be further enhanced. If the content of the silanol group exceeds 10% by weight, the thermal stability and the wet heat stability of the resin composition may be lower than those in the case where the content of the silanol group is 10% by weight or less.

When the polyorganosiloxane has the alkoxy group, the content of the alkoxy group in 100% by weight of the polyorganosiloxane is preferably 10% by weight or less. When the content of the alkoxy group is not more than the above upper limit, the flame retardancy can be further enhanced. If the content of the alkoxy group exceeds 10% by weight, the resin composition may be more easily gelled as compared with the case where the content is 10% by weight or less.

The molecular weights of the silicon-containing compound and the polyorganosiloxane are preferably 450 or more, more preferably 1000 or more, still more preferably 1500 or more, particularly preferably 1700 or more, preferably 300,000 or less, still more preferably 100,000 or less. It is more preferably 20000 or less, and particularly preferably 15000 or less. When the molecular weights of the silicon-containing compound and the polyorganosiloxane are at least the above lower limit, the heat resistance of the silicon-containing compound and the polyorganosiloxane can be enhanced. When the molecular weights of the silicon-containing compound and the polyorganosiloxane are not more than the upper limit, the stability of the resin composition can be enhanced, and the silicon-containing compound and the polyorganosiloxane in the resin composition can be improved. Dispersibility can be enhanced and flame retardancy can be enhanced.

The molecular weight of the silicon-containing compound and the polyorganosiloxane is when the silicon-containing compound and the polyorganosiloxane are not polymers, and when the structural formulas of the silicon-containing compound and the polyorganosiloxane can be specified. , Means the molecular weight that can be calculated from the structural formula. The molecular weights of the silicon-containing compound and the polyorganosiloxane are in terms of polystyrene measured by gel permeation chromatography (GPC) when the silicon-containing compound and the polyorganosiloxane are polymers. The weight average molecular weight is shown.

The content of the silicon-containing compound in 100% by weight of the resin composition is preferably 1% by weight or more, more preferably 2% by weight or more, preferably 15% by weight or less, and more preferably 12% by weight or less. be. When the content of the silicon-containing compound is at least the above lower limit, the flame retardancy can be further improved. When the content of the silicon-containing compound is not more than the above upper limit, the impact resistance can be further improved.

The content of the silicon-containing compound is preferably 2 parts by weight or more, more preferably 4 parts by weight or more, preferably 20 parts by weight or less, and more preferably 15 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin. It is less than a part. When the content of the silicon-containing compound is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the silicon-containing compound is not more than the above upper limit, the impact resistance can be further improved.

The content of the silicon-containing compound is preferably 2 parts by weight or more, more preferably 3 parts by weight or more, based on 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. It is preferably 20 parts by weight or less, more preferably 16 parts by weight or less. When the content of the silicon-containing compound is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the silicon-containing compound is not more than the above upper limit, the impact resistance can be further improved.

Silicon-containing particles:
The silicon-containing particles are preferably core-shell particles having a core and a shell arranged on the surface of the core. That is, the resin composition preferably contains core-shell particles comprising a core and a shell arranged on the surface of the core. It is also preferable that the silicon-containing compound is contained as the core-shell particles in the resin composition. The core-shell particles may have a silicon atom in the core or may have a silicon atom in the shell. When the resin composition contains core-shell particles as silicon-containing particles, not only the flame retardancy can be enhanced, but also the impact resistance can be enhanced.

From the viewpoint of further enhancing the flame retardancy, it is preferable that the organic compound constituting the core and the organic compound constituting the shell are chemically bonded in the core-shell particles. The chemical bond is preferably a graft bond.

Examples of the core-shell particles include silicone-based core-shell type rubbery polymers such as silicone-acrylate-methylmethacrylate copolymer and silicone-acrylate-acrylonitrile-styrene copolymer. The core-shell particles preferably have a core-shell rubber structure.

From the viewpoint of improving the appearance of the molded product and further enhancing the impact resistance, the volume average particle diameter (D50) of the silicon-containing particles or the core-shell particles is preferably 100 nm or more, more preferably 250 nm or more. Yes, preferably 800 nm or less. Core-shell particles having a volume average particle diameter (D50) equal to or higher than the lower limit and lower than the upper limit can be produced by an emulsion polymerization method.

The volume average particle diameter of the silicon-containing particles or the core-shell particles is an average diameter measured on a volume basis, and is a value of a median diameter (D50) of 50%. The volume average particle diameter (D50) can be measured by a laser diffraction / scattering method, an image analysis method, a Coulter method, a centrifugal sedimentation method, or the like. The volume average particle diameter (D50) of the silicon-containing particles or the core-shell particles is preferably determined by measurement by a laser diffraction / scattering method.

Commercially available products can also be used as the core-shell particles. Commercially available products of the core-shell particles include Metabrene S-2001, S-2006, S-2501, S-2030, S-2100, S-2200, SRK200A, SX-005, and SX-006 (all of which are above). Mitsubishi Rayon Co., Ltd.).

The content of the silicon-containing particles in 100% by weight of the resin composition is preferably 1% by weight or more, more preferably 2% by weight or more, preferably 15% by weight or less, and more preferably 12% by weight or less. be. When the content of the silicon-containing particles is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the silicon-containing particles is not more than the above upper limit, the impact resistance can be further improved.

The content of the silicon-containing particles is preferably 2 parts by weight or more, more preferably 4 parts by weight or more, preferably 20 parts by weight or less, and more preferably 15 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin. It is less than a part. When the content of the silicon-containing particles is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the silicon-containing particles is not more than the above upper limit, the impact resistance can be further improved.

The content of the silicon-containing particles is preferably 2 parts by weight or more, more preferably 3 parts by weight or more, based on 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. It is preferably 20 parts by weight or less, more preferably 16 parts by weight or less. When the content of the silicon-containing particles is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the silicon-containing particles is not more than the above upper limit, the impact resistance can be further improved.

The total content (content of the silicon-containing substance) of the silicon-containing compound and the silicon-containing particles in 100% by weight of the resin composition is preferably 1% by weight or more, more preferably 2% by weight or more. It is preferably 15% by weight or less, more preferably 12% by weight or less. When the total content is at least the above lower limit, the flame retardancy can be further enhanced. When the total content is not more than the above upper limit, the impact resistance can be further improved. When the resin composition contains the silicon-containing compound and does not contain the silicon-containing particles, the total content of the silicon-containing compound and the silicon-containing particles is the content of the silicon-containing compound. means. When the resin composition does not contain the silicon-containing compound and contains the silicon-containing particles, the total content of the silicon-containing compound and the silicon-containing particles is the content of the silicon-containing particles. means.

The total content (content of the silicon-containing substance) of the silicon-containing compound and the silicon-containing particles is preferably 2 parts by weight or more, more preferably 4 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin. The above is preferably 20 parts by weight or less, and more preferably 15 parts by weight or less. When the total content is at least the above lower limit, the flame retardancy can be further enhanced. When the total content is not more than the above upper limit, the impact resistance can be further improved.

The total content of the silicon-containing compound and the silicon-containing particles (content of the silicon-containing substance) is 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. It is preferably 2 parts by weight or more, more preferably 3 parts by weight or more, preferably 20 parts by weight or less, and more preferably 16 parts by weight or less. When the total content is at least the above lower limit, the flame retardancy can be further enhanced. When the total content is not more than the above upper limit, the impact resistance can be further improved.

[Fluorine resin]
The resin composition according to the present invention preferably contains a fluororesin. When the resin composition contains the fluororesin, the flame retardancy can be further enhanced. Only one kind of the above-mentioned fluororesin may be used, or two or more kinds thereof may be used in combination.

Examples of the fluororesin include a homopolymer having a fluorinated alpha-olefin monomer as a structural unit, a copolymer containing a fluorinated alpha-olefin monomer as a structural unit, and the like.

The fluorinated alpha-olefin monomer is an alpha-olefin monomer containing a substituent having at least one fluorine atom.

Examples of the fluorinated alpha-olefin monomer include tetrafluoroethylene (CF ₂ = CF ₂ ), CHF = CF ₂ , vinylidene fluoride (CH ₂ = CF ₂ ), CH ₂ = CHF, and chlorotrifluoroethylene (CClF = CF). ₂ ), CCl ₂ = CF ₂ , CClF = CClF, CHF = CCl ₂ , CH ₂ = CClF, CCl ₂ = CClF, Hexafluoropropylene (CF ₂ = CFCF ₃ ), CF ₃ CF = CHF, CF ₃ CH = CF ₂ , CF ₃ CH = CH ₂ , CF ₃ CF = CHF, CHF ₂ CH = CHF, CF ₃ CH = CH ₂ , and the like.

Examples of the fluororesin include poly (tetrafluoroethylene) homopolymer (PTFE), poly (hexafluoroethylene), poly (tetrafluoroethylene-hexafluoroethylene), poly (tetrafluoroethylene-ethylene-propylene) and the like. Can be mentioned. The poly (tetrafluoroethylene) homopolymer (PTFE) may be fibrogenic or non-fibrous.

The content of the fluororesin in 100% by weight of the resin composition is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, preferably 1.5% by weight or less, more preferably. Is 1% by weight or less. When the content of the fluororesin is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the fluororesin is not more than the above upper limit, the impact resistance can be further improved.

The content of the fluororesin is preferably 0.3 parts by weight or more, more preferably 0.5 parts by weight or more, and preferably 2 parts by weight or less, based on 100 parts by weight of the aromatic polycarbonate resin. It is preferably 1.5 parts by weight or less. When the content of the fluororesin is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the fluororesin is not more than the above upper limit, the impact resistance can be further improved.

The content of the fluororesin is preferably 0.5 parts by weight or more, more preferably 0.6 parts by weight, based on 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. It is 2 parts by weight or less, preferably 2 parts by weight or less, and more preferably 1.5 parts by weight or less. When the content of the fluororesin is at least the above lower limit, the flame retardancy can be further enhanced. When the content of the fluororesin is not more than the above upper limit, the impact resistance can be further improved.

[Other ingredients]
The resin composition may contain other components as long as the object of the present invention is not impaired.

Examples of the other components include drip inhibitors, antioxidants, heat stabilizers, light stabilizers, UV absorbers, colorants, plasticizers, lubricants, mold release agents, reinforcing agents and the like. As for each of the above other components, only one kind may be used, or two or more kinds may be used in combination.

When the resin composition contains the other components, the content of the other components is not particularly limited. The content of the other components is preferably 0.01 parts by weight or more, more preferably 0.1 parts by weight or more, still more preferably 0.5 parts by weight or more with respect to 100 parts by weight of the aromatic polycarbonate resin. Yes, preferably 10 parts by weight or less, more preferably 5 parts by weight or less.

Examples of the antioxidant include alkylated monophenols; alkylated polyphenols; tetrakis [methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamete)] methane and other polyphenols and diene alkylation reaction products. Butalization reaction product of para-cresol or dicyclopentadiene; alkylated hydroquinone; hydroxylated thiodiphenyl ether; alkylidene-bisphenol; benzyl compound; beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propion Esters of acids and monovalent or polyhydric alcohols; esters of beta- (5-tert-butyl-4-hydroxy-3-methylphenyl) propionic acid with monovalent or polyhydric alcohols; distearylthiopropionates, di Laurylthiopropionate, ditridecylthiodipropionate, octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, pentaerythrityl-tetrakis [3- (3,5-di-) Examples thereof include an ester of a thioalkyl compound or a thioaryl compound such as tert-butyl-4-hydroxyphenyl) propionate; and an amide compound of beta- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid.

When the resin composition contains the antioxidant, the content of the antioxidant is preferably 0.01 parts by weight or more, preferably 0.1 with respect to 100 parts by weight of the aromatic polycarbonate resin. It is less than the weight part.

Examples of the photostabilizer include benzotriazoles such as 2- (2-hydroxy-5-methylphenyl) benzotriazole and 2- (2-hydroxy-5-tert-octylphenyl) -benzotriazole; and 2-hydroxy-. Examples thereof include 4-n-octoxybenzophenone.

When the resin composition contains the light stabilizer, the content of the light stabilizer is preferably 0.01 part by weight or more, preferably 5 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin. It is less than the weight part.

Examples of the UV absorber include hydroxybenzophenone; hydroxybenzotriazole; hydroxybenzotriazine; cyanoacrylate; oxanilide; benzoxazineone; 2- (2H-benzotriazole-2-yl) -4- (1,1,3,3). -Tetramethylbutyl) -phenol; 2-hydroxy-4-n-octyloxybenzophenone; 2- [4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine-2-yl]- 5- (octyloxy) -phenol; 2,2'-(1,4-phenylene) bis (4H-3,1-benzoxazine-4-one); 1,3-bis [(2-cyano-3,, 3-Diphenylacryloyl) oxy] -2,2-bis [[(2-cyano-3,3-diphenylacryloyl) oxy] methyl] propane; 2,2'-(1,4-phenylene) bis (4H-3) , 1-Benzoxazine-4-one); 1,3-bis [(2-cyano-3,3-diphenylacryloyl) oxy] -2,2-bis [[(2-cyano-3,3-diphenylacryloyl) ) Oxy] methyl] propane; and inorganic substances having an average particle size of 100 nm or less, such as cerium oxide and zinc oxide.

When the resin composition contains the UV absorber, the content of the UV absorber is preferably 0.01 parts by weight or more, preferably 5 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin. It is as follows.

Examples of the colorant include titanium dioxide, carbon black, and organic dyes.

As the plasticizer, the lubricant, or the mold release agent, only one kind may be used, or two or more kinds may be used in combination. Many of the compounds used as plasticizers also have the properties of lubricants and mold release agents, and many of the compounds used as lubricants also have the properties of mold release agents and plasticizers. Many of the compounds used as agents also have the properties of plasticizers and lubricants.

Examples of the plasticizer, lubricant, or mold release agent include phthalates such as dioctyl-4,5-epoxy-hexahydrophthalate; tris- (octoxycarbonylethyl) isocyanurate; tristeare; poly-alpha-olefin. Epoxidized soybean oil; Esters; Fatty acid esters such as alkyl stearyl esters; Steerates such as methyl stearate, stearyl stearate, pentaerythritol tetrastearate; polyethylene glycol polymers, polypropylene glycol polymers, poly (ethylene glycol-co-propylene) Glycol) A mixture of hydrophilic and hydrophobic nonionic surfactants such as copolymers and methylstearate; a mixture of methylstearate and polyethylene-polypropylene glycol copolymers; and waxes such as beeswax, montan wax, paraffin wax, etc. And so on.

When the resin composition contains the plasticizer, the lubricant, or the mold release agent, each of the plasticizer, the lubricant, and the mold release agent is contained in 100 parts by weight of the aromatic polycarbonate resin. The amount is preferably 0.1 parts by weight or more, and preferably 1 part by weight or less.

Examples of the reinforcing agent include fibrous reinforcing agents such as glass fiber.

When the resin composition contains the reinforcing agent, the content of the reinforcing agent is preferably 1 part by weight or more, more preferably 10 parts by weight or more, preferably 10 parts by weight or more, based on 100 parts by weight of the aromatic polycarbonate resin. Is 25 parts by weight or less, more preferably 20 parts by weight or less.

The relative amount of each component in the above other components has an important effect on the mechanical properties such as low smoke concentration, low smoke toxicity, and ductility of the molded product. Even if a large amount of a certain component is blended in order to improve a certain property of the molded product, the other property may be deteriorated.

(Other details of resin composition and molded product)
The molded product according to the present invention is a molded product obtained by molding the above-mentioned resin composition. A molded product can be obtained by molding the resin composition according to the present invention. The molded product is excellent in flame retardancy and impact resistance.

The molded product according to the present invention can be molded by a known method using the above-mentioned resin composition. For example, a molded product can be obtained by heating the resin composition at 230 ° C. to 300 ° C. for molding and curing. Further, by vacuum forming the obtained molded product, a molded product having a predetermined shape can be obtained.

The resin composition according to the present invention can obtain molded bodies having various shapes. For example, the molded product according to the present invention may have a rectangular shape, a curved surface shape, an uneven shape, or a sheet shape.

The molded product is preferably in the form of a sheet. The sheet-shaped molded body is a resin sheet. The resin sheet can be produced, for example, by extruding the resin composition into a sheet.

The resin composition according to the present invention is preferably used for vacuum forming. The resin composition according to the present invention may not be used for vacuum forming.

The molded product is preferably in the form of a sheet. The sheet-shaped molded body is a resin sheet. The resin sheet can be produced, for example, by extruding the resin composition into a sheet.

The resin sheet may be deformed by vacuum forming or the like. By vacuum forming the extruded resin sheet, a resin sheet having a desired shape can be obtained.

The molded body according to the present invention may be a vacuum-formed molded body, a molded body before vacuum forming, or a molded body that is not vacuum-formed.

In the above molded body, the average maximum heat generation rate measured under the conditions of heater radiant heat of 50 kW / m ² and ignition is preferably 100 kW / m ² or less, preferably 90 kW / m ² or less, in accordance with ISO5660-1. It is more preferably 80 kW / m ² or less, and particularly preferably 60 kW / m ² or less. When the average maximum heat generation rate is less than the upper limit, the flame retardancy can be further improved. In order to further enhance the flame retardancy, the lower the average maximum heat generation rate is, the better.

Specifically, the average maximum heat generation rate is measured as follows.

The molded body is cut or the like to obtain a sample for measuring the heat generation rate having a length of 100 mm, a width of 100 mm, and a thickness of 3 mm. The heat generation rate measurement sample obtained is measured in accordance with ISO5660-1 using a cone calorie meter test device under the conditions of heater radiant heat of 50 kW / m ² and ignition, and the heat generation rate is measured. When the thickness of the molded product is less than 3 mm, a heat generation measurement sample having a thickness of 3 mm may be prepared by using the material (resin composition) of the molded product.

The average maximum heat generation rate is a value calculated in accordance with EN455452-2 using the heat generation rate measured in accordance with ISO5660-1.

From the heat generation rate (q) measured according to ISO5660-1 and the measurement time (T) when measuring the heat generation rate, the average heat generation rate is calculated by the following formula.

n means the number of measurement plots every 2 seconds. n is preferably an integer of 3 or more.

The average heat generation rate is calculated for each of the plurality of heat generation rate measurement samples, and the maximum value of the obtained average heat generation rate is defined as the average maximum heat generation rate. The average maximum heat generation rate is preferably a value calculated using three or more heat generation rate measurement samples.

In the above-mentioned molded product, in the Fire integrity test conducted under the conditions of heater radiant heat of 50 kW / m ² and ignition in accordance with ISO5660-1, it is preferable that the combustion residue after the test does not have holes of 3 mm or more. When this hole does not occur, the flame retardancy is remarkably excellent.

Specifically, the Fire integrity test is performed as follows.

The molded body is cut or the like to obtain a sample for evaluation with holes having a length of 100 mm, a width of 100 mm, and a thickness of 3 mm. The obtained perforated evaluation sample is subjected to a Fire integrity test under the conditions of a heater radiant heat of 50 kW / m ² and an ignition using a cone calorie meter test device in accordance with ISO5660-1. When the thickness of the molded product is less than 3 mm, the material (resin composition) of the molded product may be used to prepare a sample for evaluation with a hole having a thickness of 3 mm.

After the completion of the Fire integrity test, it is confirmed whether or not there is a hole of 3 mm or more in the combustion residue.

For multiple perforated evaluation samples, confirm the presence or absence of perforations in the combustion residue after the test. The perforation evaluation is performed on three or more perforation evaluation samples, and it is preferable that there is no perforation of 3 mm or more in all of them.

Since the molded product is excellent in flame retardancy and impact resistance, it is preferably an interior material for a transport aircraft. Examples of the transport aircraft include railroad vehicles, aircraft, ships, automobiles, and the like. Examples of the interior material include ceilings, window frames, armrests, backrests, tables and the like. The molded body is preferably an interior material of a railroad vehicle, preferably an interior material of an aircraft, preferably an interior material of a ship, and preferably an interior material of an automobile. Since the resin composition according to the present invention has excellent formability, it can be easily molded into a shape required as an interior material of a transport aircraft.

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples. The present invention is not limited to the following examples.

The following materials were prepared.

(Aromatic polycarbonate resin)
Aromatic polycarbonate resin (aromatic polycarbonate resin having a structural unit derived from a bisphenol A type compound, "CALIBRE 200-3" manufactured by Trinseo)

(Salphon resin)
Polyphenylsulfone resin ("USP1400" manufactured by UNINKO)

(Inorganic filler)
Talc (IMI FABI "ULTRA 5C", volume average particle diameter 0.65 μm)

The volume average particle size (D50) of talc was determined by measuring the particle size distribution using an X-ray transmission type sedimentation method particle size distribution measuring device (“Sedigraph 5120” manufactured by Shimadzu Corporation).

(Phosphorus-containing compound)
Phosphoric acid ester ("Fylol Flex Sol DP" manufactured by ICL Japan)

(Silicon-containing substance)
Silicone / Acrylic Core Shell Rubber (Kaneka's "Kaneka MR-01")

(Fluorine resin)
Polytetrafluoroethylene ("Teflon CFP6000" manufactured by DuPont)

(Example 1)
Preparation of resin composition:
Using a twin-screw extruder (“TEX30a” manufactured by Japan Steel Works, Ltd.), the mixture blended in the blending amount (part by weight) shown in Table 1 was mixed with a cylinder temperature of 280 ° C, a mold temperature of 260 ° C, and a pressure of 0.7. After melt-kneading under the conditions of bur (vacuum), screw diameter 30 mm, rotation speed 400 rpm, and extrusion rate 15 kg / hour, melt extrusion was performed. The resin composition obtained by melt extrusion was cooled in a water-cooled manner, cut into pellets using a pelletizer, and then dried at about 120 ° C. for about 5 hours to obtain a pellet-shaped resin composition.

Fabrication of molded product:
After melting the pellet-shaped resin composition using a single-screw extruder (“GT50” manufactured by Plastic Engineering Laboratory) under the conditions of a cylinder temperature of 270 ° C., a mold temperature of 290 ° C., and an extrusion rate of 20 kg / hour, the resin composition is melted. It was molded into a sheet. Next, the ratio of the pick-up speed to the roll speed in the pick-up machine (pick-up speed / roll speed) was set to 1.05, and pick-up was performed to obtain a resin sheet (molded body) having a thickness of 3 mm.

(Examples 2 to 4 and Comparative Examples 1 to 2)
A resin composition and a molded product were obtained in the same manner as in Example 1 except that the blending amount (part by weight) of each component was changed as shown in Table 1 below.

(evaluation)
(1) Flame retardant (average maximum heat generation rate)
The obtained resin sheet was cut into a length of 100 mm, a width of 100 mm, and a thickness of 3 mm to obtain a sample for measuring the heat generation rate. The obtained heat generation rate measurement sample was measured in accordance with ISO5660-1 using a cone calorie meter test device under the conditions of heater radiant heat of 50 kW / m ² , measurement time of 20 minutes, and ignition. The speed was measured.

The average maximum heat generation rate is a value calculated in accordance with EN455452-2 using the heat generation rate measured in accordance with ISO5660-1. From the heat generation rate (q) measured according to ISO5660-1 and the measurement time (T) when measuring the heat generation rate, the average heat generation rate was obtained by the above formula.

[Criteria for average maximum heat generation rate]
◯: 60 kW / m ² or less Δ: 60 kW / m ² or more and 90 kW / m ² or less ×: 90 kW / m ² or more

(2) Flame retardancy (presence or absence of perforation of combustion residue): Fire integrity test The above-mentioned molded product is cut or the like to obtain a sample for evaluation of perforation having a length of 100 mm, a width of 100 mm and a thickness of 3 mm. The obtained perforated evaluation sample was subjected to a Fire integrity test under the conditions of a heater radiant heat of 50 kW / m ² and an ignition using a cone calorie meter test device in accordance with ISO5660-1.

After the completion of the Fire integrity test, it was confirmed whether or not there was a hole of 3 mm or more in the combustion residue.

[Criteria for flame retardancy (presence or absence of holes in combustion residue)]
◯: No holes of 3 mm or more occur ×: Holes of 3 mm or more occur

(3) Impact resistance (dirt impact strength)
The obtained resin sheet was cut into a length of 45 mm, a width of 45 mm, and a thickness of 3 mm to obtain a sample for impact strength measurement. The obtained impact strength measuring sample was measured according to ASTM D 5420 (GE method), and the impact energy was measured. Specifically, a Gardner impact tester (manufactured by BYK) is used to give an impact to the impact strength measuring sample using an object having a weight of 16 lb and a pin tip shape GE type, and the impact strength is measured. The impact energy at which no cracks were generated in the sample was measured.

[Criteria for impact resistance (dirt impact strength)]
◯: Impact energy is 400 in-lb or more Δ: Impact energy is 200 in-lb or more and less than 400 in-lb ×: Impact energy is less than 200 in-lb

(4) Comprehensive judgment (1) Evaluation result of flame retardancy (average maximum heat generation rate), (2) Evaluation result of flame retardancy (presence or absence of holes in combustion residue), and (3) Impact resistance (dirt impact) The obtained molded product was evaluated from the evaluation result of (strength).

[Evaluation criteria for comprehensive judgment]
◯: All the evaluation results of (1), (2), and (3) above are 〇 △: The evaluation results of (1), (2), and (3) above do not have × and have △. There is a cross in the evaluation results of (1), (2), and (3) above.

The composition and results are shown in Table 1 below.

It can be understood that in the resin sheet (molded body) obtained in the examples, no holes of 3 mm or more are generated in the combustion residue after the Fire integrity test. Further, it can be understood that the molded product obtained in the examples is excellent in flame retardancy and impact resistance.

On the other hand, in the resin sheet (molded body) obtained in the comparative example, it was difficult to improve all of flame retardancy, perforation and impact resistance.

Claims (12)

It contains an aromatic polycarbonate resin, a salphon resin having a structure represented by the following formula (1), an inorganic filler, a phosphorus-containing compound, and a silicon-containing compound or silicon-containing particles.
The content of the inorganic filler is 20 parts by weight or more and 30 parts by weight or less with respect to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin.
The content of the phosphorus-containing compound is 8 parts by weight or more and 20 parts by weight or less with respect to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin.
A resin composition having a weight ratio of the content of the inorganic filler to the content of the phosphorus-containing compound of 1.3 or more and 2.4 or less.

The resin composition according to claim 1, wherein the sulfone resin is a polyphenylsulfone resin. The resin according to claim 1 or 2, wherein the content of the salphon resin is 5% by weight or more and 35% by weight or less in a total of 100% by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. Composition. The resin composition according to any one of claims 1 to 3, wherein the inorganic filler is talc. The total content of the silicon-containing compound and the silicon-containing particles is 2 parts by weight or more and 20 parts by weight or less with respect to a total of 100 parts by weight of the content of the aromatic polycarbonate resin and the content of the salphon resin. The resin composition according to any one of claims 1 to 4. Contains the silicon-containing particles
The resin composition according to any one of claims 1 to 5, wherein the silicon-containing particles are core-shell particles including a core and a shell arranged on the surface of the core. Contains fluororesin,
Claims 1 to 1 to 2, wherein the content of the fluororesin is 0.5 parts by weight or more and 2 parts by weight or less with respect to 100 parts by weight in total of the content of the aromatic polycarbonate resin and the content of the salphon resin. Item 6. The resin composition according to any one of 6. A molded product obtained by molding the resin composition according to any one of claims 1 to 7. The molded product according to claim 8, which is in the form of a sheet. The molded product according to claim 8 or 9, wherein the average maximum heat generation rate measured under the conditions of heater radiant heat of 50 kW / m ² and ignition is 90 kW / m ² or less in accordance with ISO5660-1. Any of claims 8 to 10 in which a hole of 3 mm or more does not occur in the combustion residue after the test in the Fire integrity test conducted under the conditions of heater radiant heat of 50 kW / m ² and ignition in accordance with ISO5660-1. The molded product according to item 1. The molded product according to any one of claims 8 to 11, which is an interior material of a transport aircraft.