Plant fiber-based antibacterial material and preparation method thereof

Abstract

The invention discloses a plant fiber-based antibacterial material and a preparation method thereof. The plant fiber-based antibacterial material is prepared from the following substances in parts byweight: 95-100 parts of plant fibers, 2-20 parts of starch, 0.1-3 parts of chitosan, 1-10 parts of a modifying aid, 5-20 parts of isopropanol and 100-600 parts of water. The plant fiber-based antibacterial material has the characteristics of light weight, low cost, full degradation and excellent antibacterial performance, and can be widely applied to the field of direct contact packaging of foodsand other sanitary materials with higher sanitary requirements.

Description

technical field [0001] The invention belongs to the technical field of compound performance improvement of plant fiber materials, and in particular relates to a plant fiber-based antibacterial material and a preparation method thereof. Background technique [0002] As a renewable and environmentally friendly fiber material, plant fiber (straw, bagasse, hemp fiber, bamboo fiber, etc.) has abundant sources, low price, low processing cost, recyclable, degradable, light weight, high strength, corrosion resistance, etc. Features, can replace wood, plastic. Although plant fiber materials have many advantages, plant fibers contain a large number of polar functional groups such as polar hydroxyl groups, which have poor compatibility with non-polar polymers, so it is difficult to form a good bond between plant fibers and the polymer matrix interface. At the same time, natural plant fiber molecules contain hydrogen bonds, which will gather together when heated, resulting in uneven di...

AI Technical Summary

Problems solved by technology

Although plant fiber materials have many advantages, plant fibers contain a large number of polar functional groups such as polar hydroxyl groups, which have poor compatibility with non-polar polymers, so it is difficult to form a good bond between plant fibers and the polymer matrix interface. At the same time, natural plant fiber molecules contain hydrogen bonds, which will gather together when heated, resulting in uneven dispersion in the matrix, thus affecting the comprehensive performance of composite materials

[0003] With the increasingly serious problem of environmental pollution, plant fibers have been widely used, but their physical and chemical properties need to be improved, especially in the fields of food, daily chemicals, sanitary materials and other fields with high hygiene requirements, plant fibers need to be improved before they can adapt special hygiene requirements