Thesis (M.S.)--Oregon State University, 1981. / Typescript (photocopy). Includes bibliographical references (leaves 57-60). Also available on the World Wide Web.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 90-91). Also available via the Internet.

Thesis (Ph. D.)--Oregon State University, 1991. / Includes bibliographical references (p. 100-112).

Thesis (Ph. D.)--Michigan State University. Dept. of Forestry, 1981. / Description based on print version record. Includes bibliographical references (leaves 202-212).

Thesis (M.S.)--Virginia Polytechnic Institute and State University. / Vita. Abstract. Includes bibliographical references (leaves 130-136). Also available via the Internet.

Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 57-61). Also available on the World Wide Web.

Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 84-90). Also available on the World Wide Web.

Medium density fibre (MDF) board is used in various applications in the building-, furniture- and casket industry. The market is shared by solid wood and other flat panels, such as particle board and plywood. The market in South Africa forms part of the global market. Therefore it is possible to import MDF. The demand for MDF is driven by the building industry, the Consumer Price Index (CPI) and the exchange rate. The CPI is an indication of the consumer’s willingness to purchase furniture or to invest in property with subsequent growth in the building industry. The 2002 market in SA is 500 000m3 for particle board and 110 000m3 for MDF. The imported boards during this same period were particle board 10 000m3 and 22 194m3 for MDF. The extrapolated expected imports for 2003 would be 12 362m3 and 35 045m3 for particle board and MDF respectively. According to the empirical study the market increase for particle board and MDF, for 2003, will be 18%. That means that the particle board market will increase to 590 000m3 and the MDF market to 130 000m3. The 2002 production capacity was 648 000m3 (particle board) and 155 000m3 for MDF. The Sonae factory in White River can produce either particle board or MDF and this influences the production capacities. According to various International databases the requirements for SA in 2020 will be 984 000m3 for particle board and 569 000m3 for MDF. Quick calculation show a shortfall of 414 000m3 for MDF in 2020 when compared to 2002 production capacity. First mover advantage will give the mover the major market share in SA. The demand will be there. All the above calculations have been done without taking the 2010 World Football event in SA into consideration. The question is – all the current players are almost on par to make it happen. The company with the burning desire to make it work will find the finance and will have the controlling market share.

Orientador: Heloisa Andréa Acciari / Coorientador: Cristiane Inácio de Campos / Banca: Manoel Cleber de Sampaio Alves / Banca: Ivaldo de Domenico Valarelli / Resumo : Estudos relacionados a matérias-primas alternativas para a substituição parcial ou total de madeira na produção de produtos engenheirados, mais especificamente de painéis, vem sendo desenvolvidos com a finalidade de diminuir a utilização da madeira e também aproveitar resíduos, que muitas vezes não possuem valor agregado. Por este motivo este trabalho teve o intuito de caracterizar a utilização da casca de noz macadâmia na produção de painéis de partículas, tendo em vista que esta casca é um resíduo com alta resistência, porém raramente possui utilização. Para tanto se testou quatro composições de painéis de partículas, com 0%, 30%, 60% e 100% de casca de noz macadâmia com base na massa de partículas. Avaliou-se a razão de esbeltez das partículas e as propriedades físico-mecânicas dos painéis com base na norma brasileira ABNT NBR 14810-3 (2006). Foram realizados os ensaios físicos de densidade, teor de umidade, inchamento em espessura durante 2 e 24 horas e absorção de água durante 2 e 24 horas. Os ensaios mecânicos realizados foram de flexão estática, para a determinação do módulo de ruptura (MOR) e do módulo de elasticidade (MOE), e o de tração perpendicular à superfície também conhecido como adesão interna. Com os resultados obtidos notou-se que com a adição de casca de noz macadâmia ocorreu diminuição da resistência mecânica, tanto com relação a adesão interna quanto com relação ao MOR e MOE, sendo que este último diminuiu abruptamente com a adição de apenas 30%; e maior instabilidade dimensional, pois ocorreu o aumento do inchamento em espessura e da absorção de água. Este resultado foi devido principalmente à geometria das partículas de macadâmia que não permitiu uma boa interação entre o substrato e o adesivo. Destaca-se ainda que a alta densidade da casca de noz macadâmia dificultou a interação ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Studies related to alternative raw materials for the partial or total substitution of wood in the production of engineered products, specifically panels, has been developed with the aim of reducing the use of wood and also recycle waste that often have no value. For this reason this study aimed to characterize the use of macadamia nutshell in the production of particleboard, given that this bark is a residue with high strength, but rarely has use. For that four different compositions of particle boards with 0%, 30%, 60% and 100% of macadamia nutshell based on the mass of particles were tested. The slenderness ratio of the particles and the physical-mechanical properties of panels were evaluated based on the Brazilian standard ABNT NBR 14810-3 (2006). The physical tests performed were density, moisture content, thickness swelling for 2 hours and 24 hours and the water absorption during 2 hours and 24 hours. The mechanical tests performed were the static bending, for determining the modulus of rupture (MOR) and modulus of elasticity (MOE) and the tension perpendicular to surface also known as internal bonding. With the results obtained it was noted that with the addition of Macadamia nutshell there was a decrease in mechanical strength, with respect to internal bonding and MOR and MOE, which latter abruptly decreased with the addition of only 30%; and in the dimensional stability, because occurred the increasing of the thickness swelling and water absorption. This result was mainly due to the macadamia particles geometry, which did not allow a good interaction between the substrate and the adhesive. Note also that the high density of the macadamia nutshell hindered the interaction between particles, because it blocked a sufficient panel compression / Mestre

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 85-87). Also available via the Internet.