Method for preparing special shielding material

• Main Authors: ZHAO WENHAO, HOU MEI, KANG YONGTAO, LI YAN, QIAO YONGMEI, LIU BAOHUA
• Format: Patent
• Language: English
• Published: 18.02.2015
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention discloses a method for preparing a special shielding material. The method comprises the following steps: 1, weaving aramid fibers into a woven fabric with areal density of 320-380g/m and thickness of 0.2-0.3mm; 2, uniformly mixing epoxy resin, a polyamide curing agent, an epoxy toughening agent and an epoxy resin diluting agent, adding acetone into the mixture, and uniformly stirring to obtain glue solution; 3, impregnating the woven fabric by adopting the glue solution to obtain prepreg; 4, curing the prepreg on a tablet hydraulic machine to obtain a fiber/resin special shielding material. According to the method, a fiber resin impregnation process is adopted, the operation is simple and convenient, the shellproof and protection defect of relatively high non-penetrating injury of a high-performance woven fabric can be greatly improved, and the performance is excellent and stable; the prepared special shielding material can be used for effectively protecting from knife cutting and stabbing after multiple layers of the material are superposed.