Compatilizer for PP/PS extrusion molding and preparation method thereof

Abstract

The invention relates to a compatilizer for PP / PS extrusion molding and a preparation method thereof. The compatilizer is prepared from the following components in percentages by mass: 65-80% of PP powder, 10-30% of a styrene monomer, 0-30% of a polar monomer, 0.05-0.25% of an initiator, 2-5% of a thickener and 0.1-0.4% of an anti-thermal oxygen stabilizer through reactive extrusion pelletization. The prepared compatilizer for PP / PS extrusion molding has good mechanical property and extrusion property, the compatibility of the PP / PS blend can be well improved, the mechanical strength of the blend can be effectively improved, the current situation of PP / PS extrusion molding is improved and the compatilizer has a wide application prospect.

Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a compatibilizer for extrusion molding of PP / PS and a preparation method thereof. Background technique

[0002] Reactive extrusion is a plasticizing extrusion system composed of a screw and a barrel as a continuous reactor, and various raw material components to be reacted, such as monomers, initiators, polymers, additives, etc. Different or different feeding ports are added to the screw, and the process of mixing, conveying, plasticizing, reacting and extruding from the die is realized under the rotation of the screw. The traditional extrusion process generally uses polymers as raw materials, which are melted and mixed uniformly by external heat and shear friction heat applied to the materials during screw rotation, and then extruded through a die, molded, demolded and cooled to obtain products . And there are chemical changes in reactive extrusion, such ...

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