Guayule : natural rubber : a technical publication
Guayule : natural rubber : a technical publication with emphasis on recent findings. Publication date 1991 Topics FULL TEXT download. download 1 file
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Guayule: natural rubber. A technical publication
Guayule (Parthenium argentatum) genetics, biochemistry, plant breeding, agronomics, rubber extraction and co-product utilization have been studied during 1976-1988 to determine its potential as a domestic source of natural rubber for the USA. Guayule (Asteraceae) is a dominant element of the flora on the limestone bajadas and hillsides of
Guayule as an alternative source of natural rubber: A
Multiple scenarios of natural rubbers and co-products were evaluated for energy and impact offsets. • Guayule rubber production with electricity produced from its bagasse was the most promising scenario. • Hevea had highest impacts in GWP and AP, and synthetic and guayule rubbers in ODP.
Agronomy | Free Full-Text | Potential Applications
Guayule (Parthenium argentatum Gray) is a silver-gray-green perennial shrub used as a renewable source of natural rubber or latex.Native to the semi-arid areas of Northern Mexico and Texas, specifically the Chihuahuan desert, it was commercially exploited during periods of rubber shortage caused by petroleum embargos or lack of supplies linked to the two world wars, mainly to manufacture tyres.
Natural rubber biosynthesis in plants, the rubber transferase
Natural rubber (NR) is a nonfungible and valuable biopolymer, used to manufacture ~50 000 rubber products, including tires and medical gloves. Current production of NR is derived entirely from the para rubber tree (Hevea brasiliensis).
Standard Specification for Natural Rubber (NR) Technical Grades
Abstract. This specification covers the minimum physical and chemical requirements for five technical grades of raw natural rubber. Materials are classified into grades according to retained dirt content, ash content, volatile matter content, nitrogen content, initial plasticity, plasticity retention index, color index, and Mooney viscosity.
Extraction of natural rubber and resin from guayule using an
Accelerated solvent extraction is a relatively rapid automated method for extracting compounds of interest from plant materials. We have developed a sequential solvent extraction method that can be used to accurately quantify the rubber and resin in samples of guayule (Parthenium argentatum Gray), a new industrial crop now in commercial production in Arizona, USA.
Extraction and Characterization of Latex and Natural Rubber
Phosphorylated cardanol prepolymer grafted guayule natural rubber: an advantageous green natural rubber. Iranian Polymer Journal 2018, 27 (5) , 307-318. DOI: 10.1007/s13726-018-0611-z. Preeyanuch JUNKONG, Yuta SAKAKI, Yuko IKEDA. Guayule Natural Rubber and Dandelion Natural Rubber.
The Major Protein of Guayule Rubber Particles Is a Cytochrome
Abstract. Guayule plants accumulate large quantities of rubber within parenchyma cells of their stembark tissues. This rubber is packed within discrete organelles called rubber particles composed primarily of a lipophilic, cis-polyisoprene core, small amounts of lipids, and several proteins, the most abundant of which is the M r 53,000 rubber particle protein (RPP).
A sustainability review of domestic rubber from the guayule
The review highlights areas of focus that could be leveraged to help guayule become a more sustainable source of natural rubber. Guayule rubber provides an opportunity to lower the environmental impacts of a major commodity, to develop an industry to support the local U.S, economy, and to reduce U.S. dependence on non-renewable petroleum
ASTM D1076 - 15(2020) Standard Specification for Rubber
Category 4 —Centrifuged, or centrifuged and creamed, guayule latex, or other natural rubber latex, containing less than 200 µg total protein per gram dry weight of latex, with ammonia or other hydroxide, with other necessary preservatives and stabilizers.