Preparation method for continuous carbon fiber reinforced polyphenylene sulfide material

• Main Authors: ZHU ZHENGHUA, HUANG RENJUN, ZI YUMING
• Format: Patent
• Language: English
• Published: 21.10.2015
• 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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention provides a preparation method for a continuous carbon fiber reinforced polyphenylene sulfide material. The method comprises the following steps: prepreg tape preparation: a step of taking at least 3 bundles of continuous carbon fibers, and carrying out preheating; subjecting the preheated carbon fibers to passing through a dipping mold head, wherein a polyphenylene sulfide solution is inside a channel of the dipping mold head, and temperature of the dipping mold head is 305 DEG C to 400 DEG C; allowing the carbon fibers out of the dipping mold head and then carrying out a first heating, wherein temperature of the first heating is 300 DEG C to 360 DEG C; carrying out cooling and then carrying out a second heating, wherein the temperature of the second heating is 300 DEG C to 360 DEG C; subjecting the continuous carbon fibers to pulling out through a puller, and carrying out cooling and cutting so as to obtain a prepreg tape. According to the invention, through the preparation of the prepreg tape with uniformly-distributed resin and controllable fiber content, the prepreg tape has high content of resin, so strength of the polyphenylene sulfide material is improved; meanwhile, the preparation method in the invention is simple in preparation process and is free of environmental pollution.