摘要:
A void-containing resin molded product consisting of a polymer having crystallinity, wherein the void-containing resin molded product has elongated voids whose longitudinal directions are aligned in one direction, wherein the elongated voids satisfy the expression h(avg)>T/100, where h(avg) denotes an arithmetic average of h(i)s which each denote a distance from a surface of the void-containing resin molded product to a center of each of 10 voids whose centers are closer to the surface of the void-containing resin molded product than are centers of any other voids in a cross-section of the void-containing resin molded product that is perpendicular to a direction in which the voids are aligned, the 10 voids being selected from voids in a region defined by one straight line which is parallel to a thickness direction of the void-containing resin molded product and another straight line which is parallel to and distant by 20×T from the one straight line; and T denotes an arithmetic average thickness of the cross-section, and wherein the elongated voids have a ratio L/r of 10 or more, where L denotes an average length of the voids (in μm) in a direction in which the voids are aligned, and r denotes an average length of the voids (in μm) in a thickness direction which is perpendicular to the direction in which the voids are aligned.
摘要:
A void-containing resin molded product consisting of a polymer having crystallinity, wherein the void-containing resin molded product has elongated voids whose longitudinal directions are aligned in one direction, wherein the elongated voids satisfy the expression h(avg)>T/100, where h(avg) denotes an arithmetic average of h(i)s which each denote a distance from a surface of the void-containing resin molded product to a center of each of 10 voids whose centers are closer to the surface of the void-containing resin molded product than are centers of any other voids in a cross-section of the void-containing resin molded product that is perpendicular to a direction in which the voids are aligned, the 10 voids being selected from voids in a region defined by one straight line which is parallel to a thickness direction of the void-containing resin molded product and another straight line which is parallel to and distant by 20×T from the one straight line; and T denotes an arithmetic average thickness of the cross-section, and wherein the elongated voids have a ratio L/r of 10 or more, where L denotes an average length of the voids (in μm) in a direction in which the voids are aligned, and r denotes an average length of the voids (in μm) in a thickness direction which is perpendicular to the direction in which the voids are aligned.
摘要:
The present invention provides a void-containing resin molded product having high heat insulation properties and a method for producing such a molded product. The present invention also provides an image-receiving film or sheet that includes the void-containing resin molded product to provide favorable printing characteristics and is intended for use in a sublimation transfer recording material or a thermal transfer recording material.The void-containing resin molded product consists of a crystalline polymer and has voids therein, wherein the resin molded product has a ratio X/Y of 0.27 or less, where X denotes a thermal conductivity (in W/mK) of the void-containing resin molded product, and Y denotes a thermal conductivity (in W/mK) of a void-free polymer molded product having the same thickness as the void-containing resin molded product and formed of the same crystalline polymer that forms the void-containing resin molded product.
摘要:
Described is a method for producing a void-containing resin molded product which enables producing a void-containing resin molded product having a high color saturation and an appearance excellent in brightness and heat insulation properties by stretching polymer-molded product containing a single crystalline polymer, and a void-containing resin molded product obtained by the production method. A first aspect of the method for producing a void-containing resin molded product is a method for producing a void-containing resin molded product, the method including: stretching a polymer-molded product containing a single crystalline polymer in at least one axial direction, wherein a yield stress (A) and a stress (L30) at an elongation of 30% in a stress-strain curve of the polymer-molded product in the stretching in the one axial direction satisfy Relationship (I): L30/A
摘要翻译:描述了一种通过拉伸含有单晶聚合物的聚合物模制产品来制造含空隙的树脂模制产品的方法,该方法能够制备具有高色饱和度和亮度和隔热性能优异外观的含空隙的树脂模塑制品, 以及通过该制造方法得到的含空隙的树脂成形品。 含空隙的树脂成型体的制造方法的第一方面是含空隙的树脂成形体的制造方法,其特征在于,在至少一个轴向上拉伸含有单晶聚合物的聚合物成型体, 其中,在一个轴向的拉伸中,聚合物成型体的应力 - 应变曲线的伸长率为30%时的屈服应力(A)和应力(L30)满足关系式(I):L30 / A <0.90 关系(一)