Impregnação de amostras de solo com "polylite 8001"

Dechen, S.C.F.; Mendes, A.C.T.

doi:10.1590/S0071-12761975000100034

Resumos

O trabalho descreve a impregnação de amostras de solo utilizando a resina poliéster Polylite 8001, com a posterior finalidade de preparo de seções delgadas. Dentre as várias proporções examinadas entre resina, monômero de estireno (solvente) e peróxido de metil-etil-cetona (peróxido de MEK; catalisador), a de 70% de resina, 30% de monômero e 8 gotas de catalisador para cada 100 ml de resina, foi achada ser a melhor. Um produto impregnado de elevada dureza, isótropo sob luz polarizada e que não alterou a estrutura das amostras, são algumas das vantagens dessa resina sobre outros tipos.

A method for the impregnation of soil samples with the polyester resin Polylite 8001, is described. The best combination of resin, solvent and catalyst was 70% of resin, 30% of styrene monomelic and 8 drops of methyl-ethyl-ketone peroxide per 100 ml of resin.

S.C.F. Dechen^I; A.C.T. Mendes^II

^IEngª Agrª, aluna do Curso de pós-graduação em "Solos e Nutrição de Plantas" (Doutorado) da E.S.A. "Luiz de Queiroz", USP

^IIProfessor Adjunto do Departamento de Solos e Geologia da E.S.A. "Luiz de Queiroz", USP, Piracicaba. SP

RESUMO

O trabalho descreve a impregnação de amostras de solo utilizando a resina poliéster Polylite 8001, com a posterior finalidade de preparo de seções delgadas.

Dentre as várias proporções examinadas entre resina, monômero de estireno (solvente) e peróxido de metil-etil-cetona (peróxido de MEK; catalisador), a de 70% de resina, 30% de monômero e 8 gotas de catalisador para cada 100 ml de resina, foi achada ser a melhor.

Um produto impregnado de elevada dureza, isótropo sob luz polarizada e que não alterou a estrutura das amostras, são algumas das vantagens dessa resina sobre outros tipos.

SUMMARY

A method for the impregnation of soil samples with the polyester resin Polylite 8001, is described. The best combination of resin, solvent and catalyst was 70% of resin, 30% of styrene monomelic and 8 drops of methyl-ethyl-ketone peroxide per 100 ml of resin.

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LITERATURA CITADA

AHRENS, W. & WEYLAND, H., 1928. Die Herstellung von Duennschliffen aus locherem Material fuer petrografische Untersuchungen. Centralbl. Min. Geol. und Pal., Abt A: 370-376.

ALEXANDER, F.E.S. & JACKSON, R.M., 1954. Examination of soil microorganisms in their natural enviroment. Nature, 174:750-751.

BOURBEAU, G.A. & BERGER, K.C., 1947. Thin sections of soils and friable materials prepared by impregnation with the plastic "Castolite". Proc. Soil Sci. Soc. Amer., 12:409-412.

BOUMA, A.H., 1969. Impregnation (Chapter 2). IN: Methods for the study of sedimentary structures. New York, John Wiley. 458 p.

BREWER, R., 1956. A petrographic study of two soils in relation to their origin and classification. Journal of Soil Sci., 7:268-279.

BREWER, R., 1964. Fabric and mineral analysis of soils. New York, John Wiley, 470 p.

BRISON, R.J., 1951. A method for the preparation of polished thin sections of mineral grains. Am. Min., 36:731-736.

BUOL, S.W., 1960. Clay skins genesis in Wisconsin soils. A thesis submitted to the Graduate School of the University of Wisconsin in partiall fulfillment of the requirements for the degree of Doctor of Philosophy. 109 pp.

BUOL, S.W. & FADNESS, D.M., 1961. A new method of impregnating fragile material for thin sectioning: Proc. Soil Sci. Soc. Amer., 25:253.

BURGES, A. & NICHOLAS, D.P., 1961. Use of soil sections in studying the amount of fungal hyphae in soil. Soil Sci., 92:25-29.

CAMPOS, D.A.F., 1968. Micropedologia. Contribuição ao estudo de solos de Piracicaba. Tese apresentada à Escola Superior de Agricultura "Luiz de Queiroz", USP, para obtenção do título de Doutor. 77 p.

CARVALHO, A., 1970. Study of Terra Roxa Estruturada and Latossolo Roxo on a topographic sequence in São Paulo State, Brazil. A thesis presented in partial fulfillment of the requirements for the degree of Master of Science (Soil Science) of the University of New Castle upon Tyne. 93p.

CARVALHO, A.M. de. & MENDES, A.C.T. Características químicas das cutans e da massa do solo em perfis de Podzólico Vermelho Amarelo-variação Piracicaba e Terra Roxa Estruturada. Revista da Faculdade de Ciências Médicas e Biológicas de Botucatu (Entregue para publicação em 1975).

CATT, J.A. & ROBINSON, P.C., 1961. The preparation of thin sections of clays. Geol. Magn., 98:511-515.

CAVANAUGH, R.J. & KNUTSON, C.F., 1960. Laboratory technique for plastic saturation of porous rocks. Bull. Am. Assoc. Petrol. Geologists, 44:628-640.

DALRYMPLE, J.B., 1957. Preparation of thin sections of soils. J. Soil Sci., 8:161-165.

DEBYSER, J., 1957. Note sur un procédé de preparation des plaques minces dans les sédiments fins actuel. Rev. Inst. France Petrole, 12:489-492.

EMERY, K.O. & STEVENSON, R.E., 1950. Laminated beach sand. J. Sedimentary Petrol., 20: 220-223.

EXLEY, C.S., 1956. A method of impregnating friable rocks for cutting of thin sections. Mineral. Mag., 31:347-349.

FALCI, S.C. & MENDES, A,C.T., 1973. Identificação de cutans em perfis de Latossol Roxo e Terra Roxa Estruturada. Anais da Escola Superior de Agricultura "Luiz de Queiroz", 30:49-70.

GADGIL, P.D., 1962. Soil sections of grassland. Prel. Proc. Coll. on soil fauna and soil microflora and their relationships, Oosterbeek, pp. 244-249.

INGERSON, E. & RAMISCH, J.L., 1954. Studies of unconsolidated sediments. Tchermaks Min. und Petrogr. Mitt., 4:117-124.

JENNY, H. & GROSSENBACHER, K., 1963. Root soil boundary zones as seen in the electron microscope. Proc. Soil Sci. Soc. Amer., 27:273-275.

KEYES, M.G., 1925. Making thin sections of rocks. Amer. J. Sci., 10:538-551.

KRUMBEIN, W.C.. 1935. Thin section mechanical analysis of indurated sediments. J. Geol., 43:482-496.

LAGALY, G. & WEISS, A., 1971. Neue Methoden zur Charakterisierung und Identifizierung quellungsfaehiger Dreischichttonminerale. Zeitschrifte fuer Pflanzenernaehrung und Bodenkunde, 130(1):9-23.

LEVANTAMENTO DE RECONHECIMENTO DOS SOLOS DO ESTADO DE SÃO PAULO, 1960. Boletim nº 12 do Serviço Nacional de Pesquisas Agronômicas. 634 p.

LOCKWOOD, W.N., 1950. Impregnating sandstone specimens with thermosetting plastics for study of oil-bearing formations. Bull. Am, Assoc. Petrol. Geologists, 34:2061-2067.

MACKENZIE, A.F. & DAWSON, J.E., 1961. The preparation and study of thin sections of organic soil materials. J. Soil Sci., G.B., 12:142-144.

MENDES, A.C.T., FALCI, S.C. & DEMATTÊ, J.L.I,, 1973. Seções delgadas de solos: método de impregnação. Anais da Escola Superior de Agricultura "Luiz de Queiroz", 30:35-48.

MILLER, 1965. Physical, chemical, and mineralogical properties related to the micro morphology of the Canfield silt loam A Fragiudalf. A thesis submitted to the Graduate School of the Ohio State University in partial fulfillment of the requirements for the degree of Doctor of Phylosophy. x, 218 pp.

MOURA FILHO, W., 1968. Characterization of the physical, chemical and micromorphological changes engendered by the cultivation of a soil in the Triângulo of Minas Gerais, Brazil. A thesis submitted to the Graduate School of North Carolina State University at Raleigh in partil fulfillment of the requirements for the degree of Master of Soil Science. 55 p.

MOURA FILHO, W., 1970. Studies of a Latosol Roxo (Eutrustox) in Brazil: clay mineralogy, micromorphology effect of ion release, and phosphate reactions. A thesis submitted to the Graduate School of North Carolina State University at Raleigh in partil fulfillment of the requirements for the degree of Doctor of Philosophy. 57 p.

OSMOND, D.A. & BULLOCK, P. (editors), 1970. Micromorphological techniques and applications, Agric. Res. Council, Soil Survey, Technical Monograph, Z., Harpenden. 110 p.

PERECIN, D., 1973. Observações micromorfologicas em sete perfis de solos do município de Piracicaba. Estado de São Paulo. Dissertação apresentada à Escola Superior de Agricultura "Luiz de Queiroz", da Universidade de São Paulo, para obtenção do grau de Mestre. 95 p.

RICHARDSON, L.M. & DEANE, R.E., 1961. Thin sections of unconsolidated material Proc. Geol. Assoc. Canada, 13:135-136.

ROSS, C.S., 1924. A method of preparing thin sections of friable rock. Amer. J. Sci., Sec. 5: 483-485.

SCHAFFER, R.J. & HIRST, P., 1930. The preparation of thin sections of friable and weathered materials by impregnation with synthetic resin. Proc. Geol. Assoc., London, 41:32-43.

SCHLOSSMACHER, K., 1919. Ein Verfahren zur Herrichtung von schiefrigen und lockeren Gesteinen zum Duennschleifen, Centralblatt Min., Geol. u. Palaeont., 190-192.

SCHWARZ, A., 1929. Ein Verfahren zum Haerten nicht verfestiger S Sedimente. Natur und Museum, 59:204-207.

TAYLOR, J.C.M., 1960. Impregnation of rocks for sectioning. Geol. Mag., 97:261.

WEATHERHEAD, A.V., 1940. A new method for the preparation of thin sections of clay. Min. Mag. 25:529-533.

Entregue para publicação em 01/12/1975.

AHRENS, W. & WEYLAND, H., 1928. Die Herstellung von Duennschliffen aus locherem Material fuer petrografische Untersuchungen. Centralbl. Min. Geol. und Pal., Abt A: 370-376.
ALEXANDER, F.E.S. & JACKSON, R.M., 1954. Examination of soil microorganisms in their natural enviroment. Nature, 174:750-751.
BOURBEAU, G.A. & BERGER, K.C., 1947. Thin sections of soils and friable materials prepared by impregnation with the plastic "Castolite". Proc. Soil Sci. Soc. Amer., 12:409-412.
BOUMA, A.H., 1969. Impregnation (Chapter 2). IN: Methods for the study of sedimentary structures. New York, John Wiley. 458 p.
BREWER, R., 1956. A petrographic study of two soils in relation to their origin and classification. Journal of Soil Sci., 7:268-279.
BREWER, R., 1964. Fabric and mineral analysis of soils. New York, John Wiley, 470 p.
BRISON, R.J., 1951. A method for the preparation of polished thin sections of mineral grains. Am. Min., 36:731-736.
BUOL, S.W., 1960. Clay skins genesis in Wisconsin soils. A thesis submitted to the Graduate School of the University of Wisconsin in partiall fulfillment of the requirements for the degree of Doctor of Philosophy. 109 pp.
BUOL, S.W. & FADNESS, D.M., 1961. A new method of impregnating fragile material for thin sectioning: Proc. Soil Sci. Soc. Amer., 25:253.
BURGES, A. & NICHOLAS, D.P., 1961. Use of soil sections in studying the amount of fungal hyphae in soil. Soil Sci., 92:25-29.
CAMPOS, D.A.F., 1968. Micropedologia. Contribuição ao estudo de solos de Piracicaba. Tese apresentada à Escola Superior de Agricultura "Luiz de Queiroz", USP, para obtenção do título de Doutor. 77 p.
CARVALHO, A., 1970. Study of Terra Roxa Estruturada and Latossolo Roxo on a topographic sequence in São Paulo State, Brazil. A thesis presented in partial fulfillment of the requirements for the degree of Master of Science (Soil Science) of the University of New Castle upon Tyne. 93p.
CARVALHO, A.M. de. & MENDES, A.C.T. Características químicas das cutans e da massa do solo em perfis de Podzólico Vermelho Amarelo-variação Piracicaba e Terra Roxa Estruturada. Revista da Faculdade de Ciências Médicas e Biológicas de Botucatu (Entregue para publicação em 1975).
CATT, J.A. & ROBINSON, P.C., 1961. The preparation of thin sections of clays. Geol. Magn., 98:511-515.
CAVANAUGH, R.J. & KNUTSON, C.F., 1960. Laboratory technique for plastic saturation of porous rocks. Bull. Am. Assoc. Petrol. Geologists, 44:628-640.
DALRYMPLE, J.B., 1957. Preparation of thin sections of soils. J. Soil Sci., 8:161-165.
DEBYSER, J., 1957. Note sur un procédé de preparation des plaques minces dans les sédiments fins actuel. Rev. Inst. France Petrole, 12:489-492.
EMERY, K.O. & STEVENSON, R.E., 1950. Laminated beach sand. J. Sedimentary Petrol., 20: 220-223.
EXLEY, C.S., 1956. A method of impregnating friable rocks for cutting of thin sections. Mineral. Mag., 31:347-349.
FALCI, S.C. & MENDES, A,C.T., 1973. Identificação de cutans em perfis de Latossol Roxo e Terra Roxa Estruturada. Anais da Escola Superior de Agricultura "Luiz de Queiroz", 30:49-70.
GADGIL, P.D., 1962. Soil sections of grassland. Prel. Proc. Coll. on soil fauna and soil microflora and their relationships, Oosterbeek, pp. 244-249.
INGERSON, E. & RAMISCH, J.L., 1954. Studies of unconsolidated sediments. Tchermaks Min. und Petrogr. Mitt., 4:117-124.
JENNY, H. & GROSSENBACHER, K., 1963. Root soil boundary zones as seen in the electron microscope. Proc. Soil Sci. Soc. Amer., 27:273-275.
KEYES, M.G., 1925. Making thin sections of rocks. Amer. J. Sci., 10:538-551.
KRUMBEIN, W.C.. 1935. Thin section mechanical analysis of indurated sediments. J. Geol., 43:482-496.
LAGALY, G. & WEISS, A., 1971. Neue Methoden zur Charakterisierung und Identifizierung quellungsfaehiger Dreischichttonminerale. Zeitschrifte fuer Pflanzenernaehrung und Bodenkunde, 130(1):9-23.
LEVANTAMENTO DE RECONHECIMENTO DOS SOLOS DO ESTADO DE SÃO PAULO, 1960. Boletim nº 12 do Serviço Nacional de Pesquisas Agronômicas. 634 p.
LOCKWOOD, W.N., 1950. Impregnating sandstone specimens with thermosetting plastics for study of oil-bearing formations. Bull. Am, Assoc. Petrol. Geologists, 34:2061-2067.
MACKENZIE, A.F. & DAWSON, J.E., 1961. The preparation and study of thin sections of organic soil materials. J. Soil Sci., G.B., 12:142-144.
MENDES, A.C.T., FALCI, S.C. & DEMATTÊ, J.L.I,, 1973. Seções delgadas de solos: método de impregnação. Anais da Escola Superior de Agricultura "Luiz de Queiroz", 30:35-48.
MILLER, 1965. Physical, chemical, and mineralogical properties related to the micro morphology of the Canfield silt loam A Fragiudalf. A thesis submitted to the Graduate School of the Ohio State University in partial fulfillment of the requirements for the degree of Doctor of Phylosophy. x, 218 pp.
MOURA FILHO, W., 1968. Characterization of the physical, chemical and micromorphological changes engendered by the cultivation of a soil in the Triângulo of Minas Gerais, Brazil. A thesis submitted to the Graduate School of North Carolina State University at Raleigh in partil fulfillment of the requirements for the degree of Master of Soil Science. 55 p.
MOURA FILHO, W., 1970. Studies of a Latosol Roxo (Eutrustox) in Brazil: clay mineralogy, micromorphology effect of ion release, and phosphate reactions. A thesis submitted to the Graduate School of North Carolina State University at Raleigh in partil fulfillment of the requirements for the degree of Doctor of Philosophy. 57 p.
OSMOND, D.A. & BULLOCK, P. (editors), 1970. Micromorphological techniques and applications, Agric. Res. Council, Soil Survey, Technical Monograph, Z., Harpenden. 110 p.
PERECIN, D., 1973. Observações micromorfologicas em sete perfis de solos do município de Piracicaba. Estado de São Paulo. Dissertação apresentada à Escola Superior de Agricultura "Luiz de Queiroz", da Universidade de São Paulo, para obtenção do grau de Mestre. 95 p.
RICHARDSON, L.M. & DEANE, R.E., 1961. Thin sections of unconsolidated material Proc. Geol. Assoc. Canada, 13:135-136.
ROSS, C.S., 1924. A method of preparing thin sections of friable rock. Amer. J. Sci., Sec. 5: 483-485.
SCHAFFER, R.J. & HIRST, P., 1930. The preparation of thin sections of friable and weathered materials by impregnation with synthetic resin. Proc. Geol. Assoc., London, 41:32-43.
SCHLOSSMACHER, K., 1919. Ein Verfahren zur Herrichtung von schiefrigen und lockeren Gesteinen zum Duennschleifen, Centralblatt Min., Geol. u. Palaeont., 190-192.
SCHWARZ, A., 1929. Ein Verfahren zum Haerten nicht verfestiger S Sedimente. Natur und Museum, 59:204-207.
TAYLOR, J.C.M., 1960. Impregnation of rocks for sectioning. Geol. Mag., 97:261.
WEATHERHEAD, A.V., 1940. A new method for the preparation of thin sections of clay. Min. Mag. 25:529-533.