Produ??o de pain?is de madeira com clones de Eucalyptus urophylla.

Este trabalho possui como objetivo produzir e avaliar os seguintes pain?is de madeira: compensado laminado convencional, aglomerado convencional e aglomerado orientado (OSB). A partir dos resultados desta avalia??o, indicar qual dentre os 6 clones de Eucalyptus urophylla apresenta o maior potencial para a produ??o de destes pain?is. O material objeto de estudo ? proveniente de testes clonais de propriedade da Companhia Mineira Metais ? Unidade Agroflorestal (VM-AGRO), localizadas no munic?pio de Paracatu, regi?o noroeste de Minas Gerais. Para a produ??o dos pain?is aglomerados convencionais as part?culas foram secas a uma umidade de 3%. Utilizou-se a resina ur?ia-formalde?do com 8% de s?lido resinoso, press?o de 40kgf/cm2, a uma temperatura de 160?C, durante 8 minutos. As part?culas para a produ??o dos pain?is de aglomerado orientado (OSB) foram secas a uma umidade de 3%, na propor??o entre camadas externas e interna de 25:50:25. A resina utilizada foi a fenolformaldeido, a 6% de s?lido resinoso, press?o de 40kgf/cm2, a uma temperatura de 180?C, durante 8 minutos. Para a produ??o dos pain?is de compensado, as l?minas foram secas a uma umidade de 6 a 8%. A press?o utilizada foi de 15kgf/cm2 para os pain?is feitos com Eucalyptus urophylla e 10kgf/cm2 para os pain?is feitos com Pinus oocarpa, a uma temperatura de 150?C, durante 10 minutos. O adesivo utilizado foi a resina fenol-formaldeido, gramatura de 320g em linha dupla. O clone 4 que obteve melhor m?dia de resultados nos testes f?sicos e mec?nicos dos pain?is de aglomerado convencional, assim como os demais clones, pode ser utilizado na produ??o destes pain?is e os mesmos podem ser utilizados pela ind?stria de m?veis na confec??o de arm?rios de quarto, cozinha, banho, escrit?rio, sala, bancadas, criados, aparadores, etc. O clone 1, que obteve a melhor m?dia de resultados dentre todos os clones, e tamb?m os demais clones, podem ser utilizados na produ??o de pain?is aglomerado orientado (OSB) e estes pain?is podem ser utilizados pela ind?stria de m?veis no revestimento interno de sof?s, cadeiras e poltronas, na confec??o de arm?rios de quarto, cozinha, banho, escrit?rio, sala, bancadas, criados, aparadores, etc, principalmente em m?veis que exijam resist?ncia f?sica e mec?nica. O clone 5 que obteve melhor m?dia de resultados, assim como tamb?m todos os outros clones, podem ser utilizados na produ??o de pain?is compensado laminado, e estes pain?is podem ser utilizados pela ind?stria de m?veis na confec??o de arm?rios de quarto, cozinha, banho, escrit?rio, sala, bancadas, criados, aparadores, entre outros, principalmente em m?veis que exijam resist?ncia a umidade e m?veis curvil?neos e sinuosos. Estes pain?is tamb?m podem ser utilizados pela ind?stria da constru??o civil como forros, base para piso, paredes, entre outros.This work has the objective of producing and evaluating the following wood panels: plywood, particleboards and OSB panels. From the results of this evaluation, it is intended to indicate which of the 6 clones of Eucalyptus urophylla presents the greatest potential for the production of these panels. The material object of study is from clonal tests owned by Companhia Mineira de Metais - Unit Agroflorestal (VM-AGRO), located in the municipality of Paracatu, in the northwest region of Minas Gerais, Brazil. For the production of the particleboards the particles were dried to a moisture content of 3%. It was used ureaformaldehyde resin with 8% (based on ovendry weight of wood particles), 40kgf/cm2 of pressure at a temperature of 160?C, for 8 minutes. The particles for the production of OSB panels were dried to a moisture content of 3%, to the ratio between external and internal layers of 25:50:25. The resin used was phenol-formaldehyde, to 6% (based on ovendry weight of wood particles), 40kgf/cm2 of pressure at a temperature of 180?C, for 8 minutes. For the production of plywood, the slides were dried to a moisture from 6 to 8%. The pressure was 15kgf/cm2 used for the panels made from Eucalyptus urophylla and 10kgf/cm2 for the panels made with Pinus oocarpa at a temperature of 150? C for 10 minutes. The adhesive used was phenol formaldehyde resin, weighs 320g in double line. The clone 4 that got better average results in tests of physical and mechanical particleboards, as well as the other clones, can be used in the production of these panels and they may be used by industry in the manufacture of furniture such as kitchen, bathroom, office and living room cabinets, wardrobe, benches, bedside table, sideboards, and others. The clone 1,wich achieved the best results average among all clones, and also the other clones may be used in the production of OSB panels and these panels may be used by the furniture industry in the internal coating of couch, chairs and seats in the manufacture of furniture such as kitchen, bathroom, office and living room cabinets, wardrobe, benches, bedside table, sideboards, and others, mainly in furniture requiring physical and mechanics strength. The clone 5, which obtained better results, as well as all other clones, can be used in the production of plywood, and these panels may be used by industry in the manufacture of furniture such as kitchen, bathroom, office and living room cabinets, wardrobe, benches, bedside table, sideboards, and others, mainly in furniture requiring resistance to moisture and curvilinear and winding furniture. These panels can also be used by the building industry as linings, floor and walls bases, and others