公开(公告)号：US11912841B1

公开(公告)日：2024-02-27

申请号：US18359836

申请日：2023-07-26

Applicant: Zhengzhou University

Inventor： Xiaofeng Wang ,  Yufan Jiang ,  Jing Jiang ,  Lian Yang ,  Yangyang Li ,  Qian Li

IPC: C08J9/228 ,  C08J9/08 ,  C08J9/00

CPC classification number: C08J9/228 ,  C08J9/0023 ,  C08J9/0038 ,  C08J9/0085 ,  C08J2201/022 ,  C08J2323/12 ,  C08J2367/03 ,  C08J2377/00

Abstract: The disclosure relates to the technical field of new foaming materials, in particular to a preparation method of a microporous foam material with oriented cells, which comprises the following steps: (1) melting and mixing raw materials for preparing a polymer composite material, and then carrying out hot stretching to obtain polymer composite fibers; the raw materials comprise a polymer matrix, a fiber-forming phase substance and a processing aid; (2) arranging the polymer composite fibers prepared in the step (1) in the same direction, and performing hot pressing to obtain a polymer composite board with oriented fibers; and (3) carrying out supercritical fluid foaming on the polymer composite board prepared in the step (2) to obtain the microporous foam material with oriented cells.

公开(公告)号：US20240157619A1

公开(公告)日：2024-05-16

申请号：US18492738

申请日：2023-10-23

Applicant: Zhengzhou University

Inventor： Jing Jiang ,  Lian Yang ,  Junwei Sun ,  Min Qiao ,  Caiyi Jia ,  Xiaofeng Wang ,  Qian Li

IPC: B29C48/00 ,  B29B7/48 ,  B29C44/34 ,  B29C48/40

CPC classification number: B29C48/0018 ,  B29B7/48 ,  B29C44/3415 ,  B29C48/40 ,  B29K2105/14

Abstract: The disclosure belongs to the technical field of heat insulation materials, and discloses an in-situ microfibrillated reinforced polymer composite heat insulation foam material as well as a preparation method and application thereof. This disclosure adopts a polypropylene matrix, a fiber-forming polymer, an elastomer and an antioxidant as a foam material. The foaming material is subjected to a primary melt blending process and a hot stretching process first, then subjected to a secondary melt blending process and cooling granulation and subjected to a pressing process, and a composite board is obtained. The composite board is subjected to supercritical fluid foaming process, and a composite heat insulation foam material is obtained.

公开(公告)号：US12017395B2

公开(公告)日：2024-06-25

申请号：US18492738

申请日：2023-10-23

Applicant: Zhengzhou University

Inventor： Jing Jiang ,  Lian Yang ,  Junwei Sun ,  Min Qiao ,  Caiyi Jia ,  Xiaofeng Wang ,  Qian Li

IPC: B29C48/00 ,  B29B7/48 ,  B29C44/34 ,  B29C48/40 ,  B29K21/00 ,  B29K23/00 ,  B29K31/00 ,  B29K67/00 ,  B29K101/12 ,  B29K105/04 ,  B29K105/14

CPC classification number: B29C48/0018 ,  B29B7/48 ,  B29C44/3415 ,  B29C48/40 ,  B29K2021/003 ,  B29K2023/12 ,  B29K2031/04 ,  B29K2067/003 ,  B29K2101/12 ,  B29K2105/04 ,  B29K2105/14 ,  B29K2995/0015 ,  B29K2995/0097

Abstract: The disclosure belongs to the technical field of heat insulation materials, and discloses an in-situ microfibrillated reinforced polymer composite heat insulation foam material as well as a preparation method and application thereof. This disclosure adopts a polypropylene matrix, a fiber-forming polymer, an elastomer and an antioxidant as a foam material. The foaming material is subjected to a primary melt blending process and a hot stretching process first, then subjected to a secondary melt blending process and cooling granulation and subjected to a pressing process, and a composite board is obtained. The composite board is subjected to supercritical fluid foaming process, and a composite heat insulation foam material is obtained.