| 摘要 |
<p>Provided are: polyethylene-based resin foamed particles having a suppressed shrinking of the average bubble diameter and obtained by foaming polyethylene-based resin particles for foaming having favorable production characteristics and of which an increased foaming expansion ratio is possible; and a polyethylene-based resin in-mold-foam-molded body that uses the polyethylene-based resin foamed particles, has reduced yellowing of the molded body surface, and has favorable surface beauty (surface smoothness). The polyethylene-based resin foamed particles have as a base material resin a polyethylene-based resin composition containing 50 to 20,000 ppm inclusive of a hydrophilic compound and a total content of at least one compound selected from the group consisting of an antioxidant, a metal stearate, and an inorganic material of 1000 to 4000 ppm inclusive. The Z-average molecular weight is 30×104 to 100×104 inclusive, the surface layer film thickness is 11-120μm inclusive, and the percentage of interconnected cells is no greater than 12%.</p> |
