Title:
CONTINUOUS PROCESS FOR PREPARING PREPREG
Document Type and Number:
WIPO Patent Application WO/2023/071756
Kind Code:
A1
Abstract:
A continuous process for preparing a prepreg, comprising the following steps: S1. preparing a raw material; S2. spinning the raw material to form a semi-finished ultra-high molecular weight polyethylene fiber; S3. drawing the semi-finished ultra-high molecular weight polyethylene fiber to form a finished product in a multi-stage manner, while impregnating with a liquid matrix; S4. solidifying the matrix on an ultra-high molecular weight polyethylene fiber layer to form an ultra-high molecular weight polyethylene fiber prepreg; S5. laminating two ultra-high molecular weight polyethylene fiber prepregs in orthogonal alignment with each other along warp and weft directions to form a non-woven fabric. The multi-stage drawing of S3 is performed by means of a drawing apparatus (1), and the matrix is impregnated by means of an impregnation apparatus (5). The process has the effect of storing the manufactured finished ultra-high molecular weight polyethylene fibers in the form of a prepreg, so that the ultra-high molecular weight polyethylene fibers do not easily rub against each other and cause abrasion.
Inventors:
ZHOU YINGCHUN (CN)
LI YANG (CN)
HE FEI (CN)
LI YANG (CN)
HE FEI (CN)
Application Number:
PCT/CN2022/124360
Publication Date:
May 04, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
ZHEJIANG AEGIS NEW MAT CO LTD (CN)
International Classes:
D04H1/74; D01D1/02; D01D5/16; D01D7/00; D01D13/02; D04H1/4282
Foreign References:
| CN113882089A | 2022-01-04 | |||
| CN204728054U | 2015-10-28 | |||
| CN201183915Y | 2009-01-21 | |||
| CN102529241A | 2012-07-04 | |||
| US20120247652A1 | 2012-10-04 | |||
| US3558380A | 1971-01-26 |
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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