Automotive interior material with polypropylene filled with bio-based straw powder

• Main Authors: LIU XIN, LIU SHUANGSHI, MO LAN, LI ZHIHAI, WEI SHAOZHEN, YANG FANG
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; 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 an automotive interior material with polypropylene filled with bio-based straw powder, which is prepared from the following raw materials: high-toughness high-fluidity polypropylene, polypropylene powder, linear low density polyethylene, straw powder, a nucleating agent, a compatilizer, a coupling agent, a dispersing agent, an antioxidant, a weather-resistant agent and a whitening agent, and the straw powder is prepared by mixing 60-mesh, 100-mesh and 600-mesh straw powder according to different proportions. The sustainable and renewable bio-based straw powder is used for replacing mineral stone-based materials to fill and modify polypropylene to be used for automobile stand columns, door plates and other interiors, the modification preparation process is simple, the cost is low, various requirements of automobile stand column and door plate interior performance and working conditions can be met, meanwhile, the product weight is reduced, the material consumption is reduced, and the pro