Polylactic acid bamboo powder composite material and preparation method thereof

Abstract

The invention discloses a polylactic acid bamboo powder composite material and a preparation method thereof in the technical field of composite materials. The polylactic acid bamboo powder composite material comprises the following components: 15-22 parts of polylactic acid; 5 to 10 parts of resin; 15 to 35 parts of wood flour; 5 to 15 parts of inorganic material powder; and 4 to 6 parts of a synergist. According to the polylactic acid bamboo powder composite material and the preparation method thereof, the food-grade pigment is adopted as a coloring agent to be matched with the natural bamboopowder, namely carmine, lemon yellow and fruit green, multiple groups of dyed wood powder are prepared under the condition of different pigment addition amounts, and color contrast is performed on the dyed wood powder and a blank group without the pigment, so that a deep-colored color fruit basket is developed; the product has the advantages of being bright in color, high in strength, not prone to discoloring, environmentally friendly and the like, can be used for containing various foods and medicines, has very wide market prospects, and is matched with the chemical inertness of attapulgiteto inhibit microbial growth and high in cleanliness.

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

The inventive compound described by this patented technology uses polyglycolic acid (PGA) or its salts together with vegetable oil pitches instead of traditional dyes like calcium carbonate). This mixture helps create colored materials that have better stability over time than existing ones made from these types of substances alone. These composites also resist decomposition when exposed to water vapor during storage at room temperature, making them ideal for applications such as healthcare products where sterility must be maintained.

Problems solved by technology

This patents discusses how it takes advantage of polylactide resin technology to create durable wooden/Paper composite materials called LAPBACO® which could replace traditional wood panels used widely due its ability to degrade quickly over several months without harmful chemical residues being released during manufacturing processes. However, current methods allow some degree of browning at higher temperatures, limiting their usefulness in applications like disposables.