公开(公告)号：US11840484B2

公开(公告)日：2023-12-12

申请号：US17440971

申请日：2020-03-20

Applicant: Washington State University

Inventor： David Ronald Drake ,  Taiji Miyasaka

IPC: C04B28/14 ,  B32B5/18 ,  B32B13/08 ,  C04B11/00 ,  C04B18/24 ,  C04B38/10 ,  B28B19/00 ,  C04B111/00

CPC classification number: C04B28/142 ,  B32B5/18 ,  B32B13/08 ,  C04B11/005 ,  C04B18/241 ,  C04B38/10 ,  B28B19/0092 ,  B32B2250/03 ,  B32B2266/049 ,  B32B2607/00 ,  C04B2111/0062 ,  C04B2201/20 ,  C04B2201/30

Abstract: Techniques of forming a foamed insulation material from gypsum waste are disclosed herein. One example technique includes mechanically comminuting the gypsum waste from an original size into particles of gypsum at a target size smaller than the original size and mixing the particles of the gypsum with a binder to form a mixture of particles and binder. The binder is configured to bind the particles of gypsum upon hydration. The example technique can further include performing air entrainment on the mixture until a foam is formed from the mixture having the particles of gypsum and binder. The foam has water that causes the binder to bind the particles of gypsum. The example technique can then include removing moisture from the mixture with the formed foam to form a foamed insulation material from the particles of gypsum.

公开(公告)号：US20220162126A1

公开(公告)日：2022-05-26

申请号：US17440971

申请日：2020-03-20

Applicant: Washington State University

Inventor： Taiji Miyasaka ,  David Ronald Drake

IPC: C04B28/14 ,  C04B11/00 ,  C04B18/24 ,  C04B38/10 ,  B32B5/18 ,  B32B13/08

Abstract: Techniques of forming a foamed insulation material from gypsum waste are disclosed herein. One example technique includes mechanically comminuting the gypsum waste from an original size into particles of gypsum at a target size smaller than the original size and mixing the particles of the gypsum with a binder to form a mixture of particles and binder. The binder is configured to bind the particles of gypsum upon hydration. The example technique can further include performing air entrainment on the mixture until a foam is formed from the mixture having the particles of gypsum and binder. The foam has water that causes the binder to bind the particles of gypsum. The example technique can then include removing moisture from the mixture with the formed foam to form a foamed insulation material from the particles of gypsum.