Method for testing high-precision impregnation degree of prepreg

• Main Authors: OU QIUREN, ZHAO LIANG, HU JINGHANG, LIU CHANG, LIU KESHENG, GUI QILIN, TANG ZHONGHUA, LYU WEI, ZHANG TIEFU
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a method for testing the high-precision impregnation degree of a prepreg, and relates to the field of prepreg impregnation, the width direction of an impregnation degree sample of the prepared prepreg is perpendicular to the fiber direction, and the height direction is parallel to the fiber direction; adhering adhesive tapes on the front and back surfaces of the sample along the width direction respectively, and completely covering a layer of adhesive tape respectively; the sample is cut into a plurality of rectangular sample strips in the height direction, the sample strips are placed in a flat-bottom water tank with a fixing support in the mode that the height direction is perpendicular to the horizontal plane, one width edge of each sample strip is attached to the bottom of the flat-bottom water tank, standing is conducted after water with the height being 4 mm is injected, the original weight of each sample strip is m1, and the weight of each sample strip is m2 after standing and w