Preparation method of low-odor low-gloss polypropylene composite material

• Main Authors: DUAN LONGJIANG, YANG RONGQIANG, XIONG YAN'AN, LI WENJING, DAI YINQIANG, FAN JIN, CAI XIAOSHENG, JIN LINGJIE, ZHOU MINGBO
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention relates to a preparation method of a low-odor and low-gloss polypropylene composite material. The preparation method specifically comprises the following steps: cross-linking a PE material to prepare a cross-linked master batch, carrying out extrusion granulation through a twin-screw extruder under the action of acetone and a diluent, and adjusting the flowability of the cross-linked master batch through different host rotation speeds and blanking parameters. According to the preparation method of the low-odor low-gloss polypropylene composite material, the material is high in toughness, high in ductility, rich in source, small in density, low in price and easy to form, a linear or lightly branched polymer can be converted into a polymer with a three-dimensional net-shaped body structure by adopting HDPE, so that an intergranular interface is blurred, the extinction effect is achieved, and the low-odor low-gloss polypropylene composite material is low in odor and high in glossiness. In addition,