Results 131 to 140 of about 716 (178)

New application of guayule resin in controlled release formulations

Industrial Crops and Products, 2013
Abstract Guayule resin is a by-product of the rubber extraction process from Parthenium argentatum Gray shrubs. When guayule is cultivated to a large extent, it is possible to achieve a production of 200–2000 kg/ha of resin in addition to the commercial natural rubber production that is sought for use as hypoallergenic latex.
M.J. Pascual-Villalobos, M.D. López
openaire   +1 more source

Rubber and resin contents of native guayule germplasm of Mexico

Industrial Crops and Products, 1997
Abstract Plant germplasm obtained from the origin of the genetic material can be useful for varietal improvement. For guayule (Parthenium argentatum Gray.) germplasm, 343 accessions were collected from 53 locations in 20 municipalities within five provinces (Coahuila, Durango, Nuevo Leon, San Luis Potosi and Zacatecas) in Mexico.
S. Kuruvadi, A.Lopez Benitez, D.Jasso de Rodríguez   +2 more
openaire   +1 more source

Effect of resin components on the degradation of guayule rubber

Journal of Applied Polymer Science, 1985
AbstractAll natural rubbers are likely to contain some long chain fatty acids or their esters. The individual effect of the four C18 fatty acids (stearic, oleic, linoleic, and linolenic acid) present in the guayule resin on the degradation of guayule rubber has been investigated concurrently by stress–relaxation of radiation cured rubber networks and ...
A. K. Bhowmick, S. Rampalli, D. McIntyre
openaire   +1 more source

Gravimetric Analysis for Determining the Resin and Rubber Content of Guayule

Rubber Chemistry and Technology, 1983
Abstract The method presented provides a fast and sufficiently accurate method for determining the resin and rubber contents of guayule. Although it does not provide definitive or “absolute” values that presumably can be obtained with sophisticated instrumentation, it is well suited for agronomic developmental studies at the field station level.
L. T. Black, G. E. Hamerstrand, F. S. Nakayama, B. A. Rasnik   +3 more
openaire   +1 more source

Degradative Effects of Guayule Resin on Natural Rubber. II. Kinetic Studies

Rubber Chemistry and Technology, 1982
Abstract Qualitative studies reported earlier and the kinetic studies reported here indicate that the unsaturated fatty acids in guayule resin are primarily responsible for the ability of guayule resin to accelerate the oxidative degradation of natural rubber.
Robert W. Keller, Howard L. Stephens
openaire   +1 more source

Improved methods for extraction and quantification of resin and rubber from guayule

Industrial Crops and Products, 2009
Abstract Guayule, a shrub native to the Chihuahuan desert, is a natural source of high quality, hypoallergenic rubber. Unlike rubber trees that produce rubber in laticifers, the rubber in guayule is produced in parenchyma cells of the bark tissue of stems and roots.
Michael E. Salvucci, Terry A. Coffelt, Katrina Cornish   +2 more
openaire   +1 more source

Conversion of guayule resin to C1-C10 hydrocarbons on zeolite based catalysts

Fuel, 1992
Abstract The conversion of guayule resin to C 1 -C 10 hydrocarbons, using different zeolite based catalysts, has been studied. HY, CaHX and HZSM-5 zeolites and a silica-alumina amorphous matrix were tested. The best results were obtained with a physical mixture of 70 wt% HZSM-5 zeolite ( Si Al = 13 ) and 30 wt% silica-alumina amorphous ...
Enrique Costa, José Aguado, Gabriel Ovejero, Pablo Cañizares   +3 more
openaire   +1 more source

Heritability of height, width, resin, rubber, and latex in guayule (Parthenium argentatum)

Industrial Crops and Products, 2001
Abstract Plant breeding in guayule, a rubber and latex producing plant, has not been as effective as predicted or desired. A surprisingly large amount of variability has been reported in this apomictic crop for traits such as plant height, width, resin, rubber, and latex contents.
D.A. Dierig, D.T. Ray, T.A. Coffelt, F.S. Nakayama, G.S. Leake, G. Lorenz   +5 more
openaire   +1 more source

Biomass, rubber, and resin yield potentials of new guayule germplasm

Bioresource Technology, 1991
Abstract Substantial improvement in rubber yield must be made in order to establish guayule as a reliable source of natural rubber. Selection among heterogeneous apomictic polyploids was used to improve rubber yield in a relatively short period of time.
openaire   +1 more source

Monitoring separation tendency of partial asphalt replacement by crumb rubber modifier and guayule resin

Construction and Building Materials, 2020
Abstract Guayule resin was utilized as a partial asphalt replacer for sustainable, flexible pavement. This research aimed to study the effect of such an innovative replacer on asphalt-rubber separation tendency. The replacement denoted 25–75% triggering a binder competitive with conventional asphalt.
Ahmed Hemida, Magdy Abdelrahman
openaire   +1 more source