| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide resin composition which can acquire, by an easy method, a polyamide resin foamed molded object which excels in heat resistance, in which weight reduction is fully carried out, which excels in low water absorption properties, and which has a good foamed state which can demonstrate excellent dimensional stability or load resistance also in a high-humidity environment. SOLUTION: The polyamide resin composition includes: 0-10 parts by mass of a specific glycidyl group-containing styrenic copolymer (B); and 0-350 parts by mass of an inorganic reinforcement (C) based on 100 parts by mass of a copolymerization polyamide resin (A), wherein when a multiplier (y=ax<SP POS="POST">α</SP>; here a is a constant) when a storage modulus (unit:Pa) obtained by a melt viscoelasticity measurement in the range of a frequency of 10-100 rad/s in an alignment region, is plotted in a both-logarithm graph of a frequency (x) and a storage modulus (y) is made anαvalue, anαvalue acquired from a melt viscoelasticity measurement performed at a predetermined temperature T is madeα(0), and anαvalue acquired from a melt viscoelasticity measurement after a stay for 30 minutes at a temperature T is madeα(30),α(0)<1.20, andα(0)-α(30)>0.20. COPYRIGHT: (C)2012,JPO&INPIT |
