PVC (polyvinyl chloride)-based wood plastic and preparation method thereof

Abstract

The invention relates to PVC (polyvinyl chloride)-based wood plastic and a preparation method thereof, belonging to the technical field of plastic compound modification processing. The invention aims at providing PVC-based wood plastic and a preparation method thereof which can produce a PVC-based wood-plastic section with good mechanical property and stability. The technical scheme is as follows: the PVC-based wood plastic comprises the following raw materials in parts by weight: 40-60 parts of PVC resin, 10-20 parts of wood meal, 0.2-1 part of polyethylene wax, 0.3-1 part of processing aid ACR-401, 2-6 parts of modifier CPE-135A, 1.5-4.5 parts of PVC composite heat stabilizer, 0.3-0.7 part of external lubricant, 1-3 parts of toner, 0.2-1 part of foaming agent, 2-7 parts of foaming regulator, 10-18 parts of calcium carbonate and 0.1-0.7 part of sodium bicarbonate. The preparation method provided by the invention is suitable for the extrusion molding of PVC-based wood plastic.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology uses specialized equipment called cone twin screw extruders (CST) for producing plastic products such as profiles or films. By mixing these materials at high temperatures, they can be made more stable without losing their shape over time due to less thermal energy released from other components inside them. Foam agents like this modified CSTR have low decomposable tem perature compared to conventional ones while still providing excellent foamed quality. These modifications make it easier to control how well the material flows through the machine's nozzles. Overall, this new method improves the efficiency and effectiveness of making plastic items by reducing costs and maintaining desired physical characteristics.

Problems solved by technology

The technical problem addressed by this patented technology relates to protecting forest land while recovering useful components such as wood pulp that could otherwise end up being discarded during timber production processes. Additionally, there may exist disposal issues associated with burning these residual parts due to their poor durability when exposed to weather conditions over time.