摘要:
Disclosed is a molded article obtained by molding a thermoplastic resin composition, wherein the thermoplastic resin composition contains a thermoplastic resin (A) and an inorganic filler (B); the content of the inorganic filler (B) is 60 to 150 parts by mass based on 100 parts by mass of the thermoplastic resin (A); the content of a plate-shaped inorganic filler (b1) having an average thickness of 4.0 µm or less and an aspect ratio of 130 or more in the inorganic filler (B) is 35 to 100% by mass; and a thickness of the thinnest part thereof is 2.0 mm or less.
摘要:
The present invention provides a polyamide resin composition not only having an appropriate melt viscosity despite addition of a conductive filler thereto but also having excellent moldability, conductivity, low-temperature impact resistance, and fuel barrier properties. The present invention is a polyamide resin composition containing specific amounts of a polyamide, a modified resin, and a conductive filler. The polyamide contains: dicarboxylic acid units containing 50 mol% or more of terephthalic acid units and/or naphthalenedicarboxylic acid units; and diamine units containing 60 mol% or more of aliphatic diamine units having 4 to 18 carbon atoms, and has terminal amino groups in an amount of 5 to 60 µmol/g. The modified resin has been modified with an unsaturated compound having a carboxyl group and/or an acid anhydride group. In the polyamide resin composition, a difference between the number of moles (M I ) of the terminal amino groups of the polyamide and the number of moles (M II ) of the carboxyl groups and the acid anhydride groups of the modified resin in 1 g in total of the polyamide and the modified resin is -5.0 µmol or more and less than 4.0 µmol, and the number of moles (M II ) is more than 4.0 µmol.
摘要:
A multilayered tube for transporting fuel including an innermost layer (A), an outermost layer (B) and an intermediate layer (C), characterized by that: the innermost layer (A) and the outermost layer (B) include a resin composition including 40 mass% or more of semi-aromatic polyamide; a flexural modulus of a material constituting the intermediate layer (C) measured according to ISO 178 is 800 MPa or less; and it is used in an environment in which both the innermost layer (A) and the outermost layer (B) are contacted with biodiesel fuel. In addition, a fuel pump module including the multilayered tube for transporting fuel and a method for using them.
摘要:
The present invention relates to a modified hydrogenated product of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound, and a polymer block (B) containing a structural unit derived from a conjugated diene compound, a method of producing the modified hydrogenated product, and a resin composition containing the modified hydrogenated product. The modified hydrogenated product has one or more functional groups selected from an alkoxysilyl group, a carboxy group, an amino group, a hydroxy group, an epoxy group, and an acid anhydride-derived group, and satisfies the following conditions. Condition (1): after stay at 330°C for 30 min under nitrogen atmosphere, a weight change rate is -5.5% or more. Condition (2): the peak top intensity of tan δ measured in accordance with JIS K7244-10 (2005), under conditions including a strain amount of 0.1%, a frequency of 1 Hz, a measurement temperature of -70 to 120°C, and a temperature rise rate of 3°C/min, is 1.0 or more.
摘要:
[Problem] Provided are a polyamide resin composition which is not only excellent in flame retardancy and heat resistance but also excellent in strength, exhibits a high brightness before and after a reflow step, and even after going through the reflow step, is small in yellowing, and a molded article including the same. [Solution] A polyamide resin composition including, based on 100 parts by mass of (A) a polyamide having a melting point of 280 to 330°C, 0.5 to 80 parts by mass of (B) at least one phosphinic acid salt represented by the following formula (1) or (2) and 0.001 to 7 parts by mass of (C) at least one phosphorous acid ester represented by the following formula (3) or (4). In the formulae, R 1 to R 17 , M, m, n, and x are defined in the description.
摘要:
The present invention provides a polyamide resin composition not only having an appropriate melt viscosity despite addition of a conductive filler thereto but also having excellent moldability, conductivity, low-temperature impact resistance, and fuel barrier properties. The present invention is a polyamide resin composition containing specific amounts of a polyamide, a modified resin, and a conductive filler. The polyamide contains: dicarboxylic acid units containing 50 mol% or more of terephthalic acid units and/or naphthalenedicarboxylic acid units; and diamine units containing 60 mol% or more of aliphatic diamine units having 4 to 18 carbon atoms, and has terminal amino groups in an amount of 5 to 60 µmol/g. The modified resin has been modified with an unsaturated compound having a carboxyl group and/or an acid anhydride group. In the polyamide resin composition, a difference between the number of moles (M I ) of the terminal amino groups of the polyamide and the number of moles (M II ) of the carboxyl groups and the acid anhydride groups of the modified resin in 1 g in total of the polyamide and the modified resin is -5.0 µmol or more and less than 4.0 µmol, and the number of moles (M II ) is more than 4.0 µmol.