Monitoring of technological properties of the natural rubber from new clones of rubber tree

• Grant number: 14/07470-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2014
• End date: December 31, 2014
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Maria Alice Martins
• Grantee: Maycon Jhony Silva
• Host Institution: Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil

Abstract

The natural rubber from the rubber tree is a strategic agricultural raw material used to manufacture a lot of products. Aiming at the development of culture, researchers around the world have studied the genetic improvement of rubber to obtain new clones in order to increase productivity and quality of the plantation post harvest product. Despite having been the world's largest rubber producer, currently, Brazil contributes only 1.5% of world production, and consumption is around 3.5 %. National production currently less than 5 % come from native rubber in the Amazon and 95 % comes from the rubber tree cultivation in different states of the country, the state of São Paulo, the largest domestic producer. These data demonstrate that new clonal rubber varieties adapted to different regions is an important point for the success of rubber cultivation in Brazil. Within this context, this project aims the characterization and assessment of the quality of natural rubber from new clones aiming to help in the study for recommending the large scale planting. The evaluation of natural rubber will be realized through technological properties: plasticity retention index, Wallace plasticity, Mooney viscosity, acetone extract, ash percentage and nitrogen. Tests will also be made infrared spectroscopy, nuclear magnetic resonance, elemental analysis, thermogravimetric analysis and differential scanning calorimetry, to characterize the physico-chemical and thermal properties of the rubber.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA, MAYCON JHONY; CUNHA CLARO, PEDRO IVO; DA SILVA, JOYCI CAMILA; SCALOPPI JUNIOR, ERIVALDO JOSE; GONCALVES, PAULO DE SOUZA; MARTINS, MARIA ALICE; CAPPARELLI MATTOSO, LUIZ HENRIQUE. Evaluation of the physicochemical properties of natural rubber from Hevea brasiliensis clones. INDUSTRIAL CROPS AND PRODUCTS, v. 171, NOV 1 2021. (14/07470-5)