Thành viên:Nhminhgoettingen

Dr. Nguyen Hong Minh

Wood Biology and Wood Products

Holzbiologie & Holzprodukte Georg-August-Universität Göttingen Büsgenweg 4, D-37077 Göttingen, Germany Tel: +49 (0)551 9954771 Email: nminh(at)gwdg.de

Fields of Research

Wood Biology and Wood Modification

Pulp and Paper Technology

Wood Fibre Modification

Wood Chemistry & Wood Science

Wood Based Panel Technology

Adhesion and Adhesives for Wood Based Panel

Wood Modification with Textile Hydrophobation Agents

In the textile industry, various compounds are applied to improve certain properties such as form stability and hydrophobicity. Since cotton textiles mainly consist of cellulose, their chemical composition is very similar to that of wood. Moreover, the requirements with regard to the process in the textile industry resemble to those of wood impregnation. The agents are nearly exclusively applied as emulsions (aqueous systems) and the bath in which the textile (or the wood respectively) is submerged has to be stable over a longer period of time so that the reaction does not occurs until a curing phase after the impregnation.

In this study, Fagus sylvatica, Pinus syvestris, Hevea brasiliensis and Paulownia fortunei wood are modified by the processes of chemical and thermal modification with several hydrophobation agents. The chemical composition of wood is exchanged by hydrophobic chemical groups, which improve dimension stability and increase the resistance of wood against biodegradation. The chemical agents to be tested are N-methylol compounds, various waxes and silicone compounds.

The research project is financed by Ministry of Science and Culture of Lower Saxony (Niedersachsen) , Germany

Education

Ph.D - 2007 Wood Biology and Wood Technology

Georg-August-Universität Göttingen [1], Germany Fields of study: Wood Biology and Wood Technology: Chemical-Thermo Wood Modification, Wood Fiber Modification Dissertation: " Wood Modification with Hydrophobation Textile Finishing Agents" [2] Thesis book: [3]

M.Sc - 2000 Pulp and Paper Technology

Asian Institute of Technology ( AIT ) [4], Thailand Fields of Study: Pulping Technology, Paper and Board Technology Dissertation: " Comparison of Eucalyptus urophylla, Eucalyptus camaldulensis and Acacias from Vietnam as fibre raw material for paper "

B.Eng - 1996 Wood Processing Technology

Vietnam University of Forestry [5], Vietnam Fields of Study: Particle Board, Plywood, MDF Technology, Wood Properties, Wood Working Technology Dissertation: " Application research of a mixed fire-retardant chemicals for particle board “

Research Experiences

Modification of Wood with Textile Hydrophobation Agents Burckhardt-Institut, Abt. Holzbiologie & Holzprodukte Georg-August-Universität Göttingen Büsgenweg 4, D 37077 Goettingen, Germany Report: "Chemical - Thermo Modification of Rubber (Hevea brasinliensis) and Paulownia (Paulownia fortunei) Wood with Textile Hydrophobation Agents" . 2005

Dimension Stability of Silicon Base Paper Sappi Fine Paper Europe - Sappi Alfeld AG, Werk Alfeld, Mühlemasch 1 D-31061 Alfeld (Leine). Germany Report: "Dimension Stability of Paper". 2003

Technical Sales Supervisor, Casco Adhesives for wood based panel industies of Vietnam -

Casco Adhesives (Asia) Pte Ltd (Akzo Nobel), HCM City Repr Office, branch in Hanoi, Vietnam, 1997 - 1998

Research associate Asian Institute of Technology (AIT) - Southeast Asian Geotechnical Society (SEAGS) - Asian Association for Agricultural Engineering (AAAE) P.O. Box 4, Klongluang Pathumthani, 12120 Thailand 2000 – 2002

Patents

European Patent - EP1716995, 2009

Militz, H., Mai, C., Nguyen, H. M., 2009. Composition based on fatty acids and paraffin derivatives for protecting lignocellulosic materials

Schutzmittel für lignocellulosisches Material auf Basis von Fettsäure- und Paraffinderivaten. Veröffentlichungsnummer: EP 1716995, Europäisches Patentamt.

Granted date: 02/25/2009 EP1716995 (B1)

Publication date: 02/11/2006 EP1716995 (A2) EP1716995 (A3)

Filing date: 04/24/2006

Inventor(s): MILITZ HOLGER PROF DR [DE]; MAI CARSTEN DR [DE];

                 NGUYEN HONG MINH [VN]

Applicant(s): UNIV GOETTINGEN GEORG AUGUST [DE]

Composition based on fatty acids and paraffin derivatives for protecting lignocellulosic materials [6]

Links:

Protective treatment for wood composit material with improved characteristics: reduced water absorption, fewer expansion and shrinking [7]

Publications

Nguyen, H. M., 2008. Wood Modification with Hydrophobation Textile Finishing Agents. Sierke Verlag. Göttingen, Germany

Nguyen, H. M., Militz, H., Mai, C., 2007. Protection of wood for above ground application through modification with a fatty acid modified N-methylol/paraffin formulation. In: International Research Group on Wood Preservation. Conference: 07-05-20/24 Jackson, USA. IRG38 Conference Proceedings: Document No. IRG/WP 07-40378. The International Research Group on Wood Protection IRG/WP, Stockholm. Sweden. (Presentation)

Nguyen, H. M., Militz, H., Mai, C., 2007. Weathering properties of wood modified with hydrophobation agents. In: Hill CAS, Jones D, Militz H, Ormondroyd GA (Hg.) The 3rd European Conference on Wood Modification. The Third European Conference on Wood Modification, Bangor, UK.

Mai C, Nguyen, H. M., Donath, S., Weigenand, O., Militz, H., 2007. Neuartige Systeme zur Hydrophobierung von Holz in der Außenanwendung.Wege zum geschützten Holz im modernen Holzbau Wege zum geschützten Holz im modernen Holzbau, Biberach, Germany.

Nguyen, H. M., Mai, C., Hung, N., Khanh, N., Militz, H., 2005. Durability properties of rubber and paulownia wood treated by hydrophobation agents. In: Militz H, Hill C (Hg.) Wood Modification. Wood Modification: Processes, Properties and Commercialisation, Göttingen. Germany.

Nguyen, H. M., Mai, C., Hung, N., Khanh, N., Militz, H., 2005. Natural durability improvement of rubber and paulownia wood by a chemical – thermal treatment. Tropentag 2005. Conference of International Research on Food Security, Natural Resource Management and Rural Development. Stuttgart, 11th– 13th October 2005

Awards

Ron Cockcroft Award (RCA), awarded by International Research Group on Wood Protection. IRG38, Wyoming, United State of America, 2007.

Top academic prize among Bachelor graduated student batch 1991-1996, Vietnam University of Forestry, Vietnam, 1996.