Nonwoven abrasive articles having electrostatically-oriented abrasive particles and methods of making same
申请人:3M INNOVATIVE PROPERTIES COMPANY
公开号:US11351653B2
公开(公告)日:2022-06-07
Abrasive articles including a nonwoven fibrous substrate having a plurality of fibers, and a multiplicity of shaped abrasive particles, each shaped abrasive particle adhered to a corresponding fiber, each shaped abrasive particle having a length (L) and a width (W) determined in a direction substantially orthogonal to the length, the ratio of the length to the width defining an aspect ratio (L/W) of at least 1.1, each abrasive particle is oriented relative to its corresponding fiber, and more than 50% of the abrasive particles are oriented with respect to their corresponding fiber such that the abrasive particle length extends generally outwardly away from a surface of the corresponding fiber as determined visually using the Orientation Test. The shaped abrasive particles may have the geometric shape of a polygonal prism having two faces and at least three sides thereon. Methods of making the abrasive articles are also disclosed.
磨料制品,包括具有多个纤维的非织造纤维基材,以及多个成形磨料颗粒,每个成形磨料颗粒粘附在相应的纤维上,每个成形磨料颗粒具有长度(L)和宽度(W),长度和宽度在与长度基本正交的方向上确定,长度和宽度之比确定了至少为1的纵横比(L/W)。1,每个磨料颗粒相对于其相应的纤维定向,50%以上的磨料颗粒相对于其相应的纤维定向,使得磨料颗粒的长度大致向外延伸,远离相应纤维的表面,这是用定向测试目测确定的。异形磨料颗粒的几何形状可以是多边棱柱,其上有两个面和至少三个边。此外,还公开了磨料制品的制造方法。