High-porosity plastic light profile and manufacturing method thereof

Abstract

The invention discloses a high-porosity plastic light profile and a manufacturing method of the high-porosity plastic light profile. The high-porosity plastic light profile comprises a profile intermediate core part of a meshy three-dimensional hole structure, and a solid skin is arranged on the outer surface of the profile intermediate core part. The manufacturing method comprises the following steps: step one, preparing raw materials, and respectively acquiring skin material powder and core part material particle fragments; step two, adding the core part material particle fragments into a mold cavity, keeping the core part material particle fragments to be at a loose state, closing a mold, heating, naturally fusing, plasticizing and connecting the core part material particle fragments to form the meshy three-dimensional hole structure under the effect of a formation auxiliary agent; and step three, forming the solid skin. The core part material particle fragments are not pressed in the mold cavity, interval holes are reserved among the fragments, and the core part material particle fragments are naturally fused, plasticized and connected to form the meshy three-dimensional hole structure; compared with relatively conventional method products, the performance index of the formed product is greatly improved, and the solid skin of the profile is smooth, and the intensity of the profile is also improved.

Description

technical field [0001] The invention relates to a plastic plate and its molding technology, in particular to a high-porosity and light plastic profile and a manufacturing method thereof. Background technique [0002] Thermoplastic profiles are a large category of plastic products, roughly divided into solid profiles and foam profiles, and are widely used in construction, chemical, decoration, advertising and other industries. Foamed profiles are divided into chemical foaming and physical foaming methods according to the molding method. The conventional production generally adopts extrusion and calendering processes, which require high purity of raw materials, narrow selection range, high investment costs for precision equipment, and difficulty in changing product specifications. Extremely large, especially for the complex composition of recycled plastic materials (such as municipal solid waste, plastic-coated book covers produced by paper mills, etc.), the commonly used prod...

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Problems solved by technology

Foamed profiles are divided into chemical foaming and physical foaming methods according to the molding method. The conventional production generally adopts extrusion and calendering processes, which require high purity of raw materials, narrow selection range, high investment cost for precision equipment, and dif...

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