Production technology for plastic-wood plate with mixed color

Abstract

The invention provides a production technology for a plastic-wood plate with mixed color, and relates to the technical field of plastic-wood material production. The production technology mainly comprises a pelleting process and an extrusion process. In the pelleting process, needed raw materials comprise 40-60% of bamboo / wood powder, 15-30% of PE, 4-10% of talcum powder, 10-15% of toner, 2-5% of a coupling agent and 3-5% of a maleic anhydride grafted material. The extrusion process comprises: mixing material particles obtained in the pelleting process with color masterbatch with stirring, then adding into an extruder for extruding to obtain plates, and controlling the pressure in a cylinder of the extruder to be 0.06 MPa by utilizing vacuum-pumping equipment connected with the cylinder. By utilizing the production technology for plastic-wood plate with mixed color, the raw-material formula is reasonable, the product performances are good, the plastic-wood plate with mixed color is produced and possesses patterns with different colors, and the variety of products is improved; and the extruder cylinder is connected with the vacuum-pumping equipment in the extrusion process, so that the interior of the cylinder is a low-pressure environment, moisture, flue gas and air in the cylinder are timely exhausted, and thus the product performances are improved.

Description

Technical field: [0001] The invention relates to the technical field of production of plastic wood materials, in particular to a production process of mixed-color plastic wood boards. Background technique: [0002] Plastic packaging waste has seriously polluted the environment, affected industrial and agricultural production, and endangered human health and the survival of animals and plants. The world's annual output of plastics has exceeded 200 million tons, and my country's plastic packaging materials have exceeded 10 million tons in 2007. After one-time use, most of these plastic packaging materials and containers have become solid waste. Plastic packaging waste is light in weight, large in size, large in quantity, difficult to degrade, and cannot be incinerated at will. Most of them are discarded beside railways, inland waters, and streets and alleys in cities and towns. Over time, they become shocking "white pollution" belts. According to the investigation of relevant...

AI Technical Summary

Problems solved by technology

The performance of existing plastic wood products is still not ideal, and there are still some defects, such as the density and water absorption of wood plastic boards, etc. parameters still need to be further improved

Moreover, the types of existing plastic wood materials are relatively single, and most of them are products of a single color.