Program 7. Promote the use of wood-based on the optimized processing technology
This program intends to increase and nurture the utilization of domestic woods and its industry following cutting-edge technologies in the BT, NT, IT convergence, advancement of the respective process by building net-neutrality society and promoting strategic researches in the wood industry
□ Major outcomes
7-1 Expansion of the demand for wood to revitalize the wood industry
·Research data sheets containing standardized metadata and DMP (Data Management Plan) were designed for sharing and recycling research data. The wood properties of 45 items in 10 fields were evaluated for major domestic wood species (20 species over 5 years), and the DB was established.
·The LCI DB reflecting the process characteristics of the fiberboard and Particle Board is established and registered as national approval statistics. A revision to all 15 wooden products' notices was prepared, and 284 (3 years) cases of Korean industrial standards for wood products in connection with R&D were enacted.
·In order to promote the socio-cultural value of wood, the types of wood culture are classified, and three strategies (standardisation, valuation, daily life) and detailed action plans are established for the spread of wood culture. Priorities for each of the three major areas for the spread of wood culture are determined through expert advice and surveys on detailed action plans.
7-2 Advanced processing technology to improve the added value of wood
·The shear resistance of the lateral force resisting wall using larch cross laminated timber(CLT) and structural particle board was evaluated. Based on this, the structural performance of walls and floors using domestic engineering wood was verified.
·In order to improve dimensional stability and decay resistance of wood, novel agents for chemical modification were investigated and the feasibility of commercial technologies such as acetylation and furfurylation for domestic species was verified. In addition, the wood composite buoy containing 65% wood were developed as an alternative to plastic buoys for shellfish aquaculture.
·The constructability were evaluated through on-site construction using domestic structural particleboard (SPB). The SPB satisfied the flame retardant regulation and showed outstanding anti-mould and termite resistance performance. Also, long-term outdoor exposure test of SPB is ongoing for evaluating weatherability. Basic data have been secured for pilot manufacturing of the domestic self-tapping screw (STS) for the connection of CLT and preparing structural design standards for use.
7-3 Development of future materials based on wood with convergence technology
·A novel technology was developed for manufacturing pulp-based eco-friendly superabsorbent materials that exhibited up to four times higher water absorption capacity (over 800 g/g) than the commercially petrochemical-based superabsorbent materials (SAPs).
·A study to optimise chemical preprocessing in the mass production of cellulose nanofibres was conducted, and a study on the application of using air filters, chemical bonding, and pH sensors was conducted.
·The methodology of analysis experiments as a means of managing the standards and the quality of wood products is an important topic, and the development of standard materials as well as pretreatment techniques for determining inorganic elements in wood products is major research to promote forest policies and achieve academic findings related to the wood industry.
·Since the use of oxidative complexing agents in molded charcoal has been prohibited since 2024, it is urgent to develop alternative materials that meet the needs of the public's eye level and related industries.
7-4 Expansion of carbon storage and replacement effect with wood use
·Among the green building certification indicators, we propose an evaluation method using the entire process evaluation tool of wooden architecture. To extend the service life of wooden building, chemical modification techniques have been developed to improve the durability of wood. For realizing wooden multi-unit residual buildings in Korea, sound insulation performance for CLT and hybrid floor structures are carefully evaluated and analyzed in order to meets the Housing Act of Korea. Through this, a basic plan for a pilot model of urban wood-made facilities and buildings was established.
·In order to analyse the technology industry linkage analysis and carbon substitution effects of wood products replacing the non-wood market, an environmental input-output table is prepared using the interindustry relations table and greenhouse gas inventory. Improving the processing technology of wood to conduct a survey on the actual condition of drying processing with low energy production process.
·The conditions for producing industrial bio-materials using a wood-based bio-compounds with a rapid hydrothermal reaction are investigated. And the graphitization conditions via carbonization of lignin-dominant reaction by-products are studied to find out the availability of biomass oriented carbons as electrode materials in energy storage device.