Environment-friendly bamboo fiber material and preparation method thereof

Abstract

The invention discloses an environment-friendly bamboo fiber material which is prepared from the following raw materials in parts by weight: 30-40 parts of polylactic acid, 10-18 parts of poly (butylene succinate), 20-30 parts of modified bamboo fiber, 10-15 parts of a plasticizer and 2-3 parts of an antibacterial agent; the invention further discloses a preparation method of the environment-friendly bamboo fiber material, and the preparation method comprises: step 1, sealing and placing; step 2, mixing; step 3, after being cooled, crushing the mixture into particles through a strong crusher,and pouring the particles into a hot-pressing mold; and step 4, carrying out hot pressing. According to the invention, the polylactic acid and the poly (butylene succinate) are used as a matrix of materials, and are both biodegradable resin, and the mechanical property and the heat resistance of the composite material can be improved by enhancing effect of the modified bamboo fiber; meanwhile, dueto the addition of the plasticizer, the composite material not only has relatively high strength, and the elongation at break and the water resistance are good; due to the addition of the antibacterial agent, the composite material is not easy to mildew, and the service life of the composite material can be effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bamboo fiber environmental protection material and a preparation method thereof. Background technique [0002] At present, with the increasing shortage of petroleum resources, environmental pollution has become one of the most important problems in human existence, and degradable non-petroleum-based polymer materials have attracted more and more attention. [0003] Plant fiber is the most abundant natural polymer material in nature. The total amount of plant fiber (in the form of natural plant fiber) grown in nature every year is as high as 100 billion tons, far exceeding the total reserves of existing oil on the earth. Plant fibers come from a wide range of sources, such as rice husk, rice husk, wood chips, bamboo, straw, cotton stalks, sorghum stalks, bagasse, corncobs, peanut shells, coffee grounds, tea leaves, weeds and other crop waste. The fiber sha...

AI Technical Summary

Problems solved by technology

In addition, the matrix resin is usually a non-polar and non-hydrophilic material. The compatibility between the plant fiber and the resin matrix is ​​poor, and the interface bonding strength is low. It is necessary to fully tap the value of the plant fiber and carry out in-depth processing Utilization, pretreatment and modification of plant fiber is the key to limit the use of plant fiber, otherwise the mechanical properties, water resistance and durability of its products will be affected

[0006] This shows that the above-mentioned existing plant fiber environmental protection materials obviously still have inconvenience and defects in products, manufacturing methods and use, and need to be further improved urgently.

Images