公开(公告)号：US20250129517A1

公开(公告)日：2025-04-24

申请号：US18922376

申请日：2024-10-21

Applicant: Massachusetts Institute of Technology

Inventor： Svetlana V. Boriskina ,  Jungwoo Shin ,  Volodymyr Korolovych ,  Duo Xu ,  Hannah Gold ,  Buxuan Li ,  You Lyu

IPC: D01D5/10 ,  D01D5/098 ,  D01F1/10 ,  D01F6/30 ,  D02G3/44

Abstract: Compositions and methods for forming composites of polymer fibers, yarns, and textiles having enhanced elastocaloric and twistocaloric performance are provided herein. The composites can permit reversible temperature shifts within the materials, and can be used, for example, in energy conversion and thermal storage systems. These composites can be formulated by melt spinning the polymer fibers and using combinations of twisting and stretching of the polymer fibers. The fibers can include, for example, a base polymer that can be amorphous, or substantially amorphous, and desired alignment can occur, for example, by performing one or more of the various provided for techniques. In at least some embodiments, the composite materials can be further enhanced by including one or more phase change materials (PCMs), such as by cross-linking the one or more PCMs with one or more polymers and/or directly attaching the PCM(s) to the polymer(s).

公开(公告)号：US20240173911A1

公开(公告)日：2024-05-30

申请号：US18523845

申请日：2023-11-29

Applicant: Massachusetts Institute of Technology

Inventor： Svetlana V. Boriskina ,  Volodymyr Korolovych ,  Leslie Yan ,  Duo Xu

IPC: B29C64/118 ,  B29B17/04 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  D03D1/00 ,  D03D15/283 ,  D04H3/007 ,  D04H3/05 ,  D04H3/16 ,  D06C7/02

CPC classification number: B29C64/118 ,  B29B17/04 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  D03D1/00 ,  D03D15/283 ,  D04H3/007 ,  D04H3/05 ,  D04H3/16 ,  D06C7/02 ,  B29K2023/065 ,  D10B2321/0211 ,  D10B2401/04

Abstract: A polyethylene (PE)-based fully-recyclable textile material and product formed by three-dimensionally printing PE structures onto a polyethylene textile is provided. The textile material can include one or more PE filaments being directly deposited onto a PE fabric via an FDM printing process to form a mono-material. The deposition of structures onto the PE fabric, which can form the substrate of the textile, can be used to enable changes to the mechanical properties of the fabric and/or create novel design aesthetics. Moreover, this material can be characterized by its ability to be thermally recycled, from which new PE-based products and materials may be manufactured. For example, the PE-based fully-recyclable textile material can be formed into a PE recyclate that can be melted and re-pelletized for formation of alternative PE-based fully recyclable textile materials. The PE-based fully recyclable textile material can be used in footwear and other wearable applications, as well as spacesuits, helmets, bulletproof vests, sweat-proof garments, racing suits, and so forth.