Hydrophobic additive, hydrophobic composite material as well as preparation method and application of hydrophobic additive and hydrophobic composite material

• Main Authors: WANG WEI, CHENG CHANGSHENG, WANG XUDE, ZHAO HONGZHOU, ZHANG YUJUN, YIN FUPING
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention provides a hydrophobic additive, a hydrophobic composite material and a preparation method and application of the composite material. The hydrophobic additive is composed of 70-98 parts of an additive body and 2-30 parts of a hydrophobic additive, the additive body is polypropylene and/or polyethylene, and the hydrophobic additive is one or more of calcium stearate, zinc stearate, erucyl amide, oleamide and octadecanamide. The hydrophobic composite material is composed of 85-98 parts of a composite material body, 1-15 parts of a functional additive and 1-15 parts of a hydrophobic additive, the composite material body is polypropylene, and the functional additive is one or more of calcium carbonate, talcum powder and barium sulfate. The contact angle of the hydrophobic composite material prepared from the hydrophobic additive is larger than or equal to 120 degrees, and the volume error of a plastic product which is made of the hydrophobic composite material in an injection molding mode and used f