On January 9, the new straw-modified plastic material developed by Professor Zhou Xiaofan from Nanjing Forestry University could replace the wood-plastic materials in the traditional wood-based panel technology and effectively improve the basic properties such as the bending strength of the wood-based panel to avoid The use of adhesives and other chemicals on the environment pollution, but also to the use of personalized furniture and other fields.
At present, the traditional wood-based panel manufacturing process requires adhesive, and the wood-based plastic frequently used in plywood, particle board, fibreboard and other wood-based panels is easily deformed during pyrolysis and can not guarantee bending and tensile strength, poor water absorption performance, And the environmental pollution and human health hazards, such as abandoned, such as benzene and formaldehyde and other volatile chemicals easily discharged into the atmosphere, ozone, affecting biological growth and human health, and even carcinogenic.
Into the office of Zhou Xiaofan, we saw his office placed on the three forms of new material 'model', first of all, a sachet of plastic particles like wheat particles greet the eyes, it is understood that this is 'pre-upgrade' According to Zhou Xiaofan introduction, the traditional corn stalk is a natural polymer material, but due to its relatively low thermal decomposition temperature, began to thermal decomposition at 280 ℃, there is no way to use thermoplastic re-processing and utilization of new biomass plastics Just keep the particle temperature between 120-150 degrees, you can prepare a new type of biomass straw products.
It is understood that Professor Zhou Xiaofan abandoned agricultural waste cotton stalks and mixing the skin, sawdust and wood processing residues such as wood, the use of special preparation process, the crop plasticizing straw, just 10 minutes, you can develop a The new type of biomass 'modified' material, and has 'self-plastic', 'no glue', bending performance, high water absorption, mildew resistance, formaldehyde and other environmental performance, preparation of formaldehyde-free adhesive Agent high-density wood-based panels.
There was also a pile of hard, water-resistant, floor-like 'upgraded' timber and a thin, leaf-like plastic form film, which according to the introduction was the two 'new bodies' , The former can be used to replace the traditional wood-plastic materials, applied to the floor and mahogany furniture, and the density of mahogany furniture from the international standard 1.0g / cm3 increased to 1.3-1.5g / cm3, bending strength up to 70MPa, is ordinary wood plastic materials Three times the international standard, and strong water absorption, increased by 20 times, anti-corrosion, cost from the original 9300 + yuan per ton to 1825 yuan per ton, the unit price of the original 1 / 5. The latter can be used for high Strength, waterproof and moisture resistant 'corrugated' and capacitor paper, car filter paper and other high-performance straw plasticized paper preparation.
In addition, due to the antibacterial and hygroscopic properties of textile products such as undergarments made of bamboo fiber, the market demand for bamboo fiber textiles has been increasing day by day. However, due to the traditional properties of raw bamboo fibers that are easily damaged and expensive in processing Professor Zhou introduced that biomass 'modified shape' new material can also be applied to the field of bamboo fiber, the production process is simple, and improve its antibacterial and flexible, eco-friendly and cheap.