Preparation method and application of ABS microporous conductive composite material product with multi-layer structure

• Main Authors: HUANG HANXIONG, GUO CHANGZHI
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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

The invention discloses a preparation method of an ABS (Acrylonitrile Butadiene Styrene) microporous conductive composite material product with a multilayer structure, and belongs to the field of conductive polymer materials. The preparation method comprises the following steps: modifying conductive filler to prepare a light ABS microporous conductive composite material; mixing the ABS conductivecomposite material with a supercritical fluid in an injection molding machine to form a single-phase solution; quickly injecting the single-phase solution into an incompletely closed mold cavity, andfoaming in a thermodynamic unstable state generated by the single-phase solution by virtue of pressure drop; then compressing the raw materials by adopting a mold compression process; or injecting thesingle-phase solution into the mold cavity, and directly foaming to obtain the product. According to the preparation method, dispersion and orientation of filler in the ABS conductive composite material are effectively improve