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Development of hybrid latexes of lignin/styrene/buthyl acrylate via emulsion and miniemulsion polymerization for carpet production

Grant number: 14/23766-1
Support type:Scholarships in Brazil - Master
Effective date (Start): July 01, 2015
Effective date (End): February 28, 2017
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Maurício Pinheiro de Oliveira
Grantee:Nigel Roderick Messmer
Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil

Abstract

The incorporation of organic matter derived from renewable resources for production of organic/organic hybrid polymers is of great commercial and scientific interest since this type of material confers specific properties with respect to applications as well as contributing to a reduction of costs with respect to the final product. The integration of lignin in hybrid polymers using free radical polymerization has received much attention in recent years due to the properties intrinsic to lignin, and the attractive cost of kraft lignin which comes from a renewable resource. Recent studies show that emulsion and more specifically miniemulsion are attractive techniques with respect to polymerization of hybrids in aqueous medium for a wide variety of industrial applications. The focus of this project is to develop hybrid latex of the organic/organic type using emulsion and miniemulsion to polymerize styrene (St) and n-butyl acrylate (ABu), in the presence of different concentrations of kraft lignin to be used to produce automotive carpets with enhanced performance and flame-retardant properties. The miniemulsion will be produced in a high-pressure homogenizer in a semi-continuous process. The hybrid latexes will be characterized in relation to global conversion, particle diameter, particle-size distribution, particle morphology, zeta potential, molar mass and the proportion of the total showing successful grafting. The mechanical and thermal properties of the films will be determined though dynamic mechanical analysis (DMA) and differential scanning calorimetric (DSC). The latexes produced will be used to manufacture the carpets that will be evaluated in relation to their mechanical stability, resistance to abrasion, and flammability. This project is auxiliary to FAPESP no. 2013/25619-3 and will have the technical support of BASF S.A. and the polymers group of the ICT-UNIFESP for the manufacturing and characterization of the carpet with fire resistance properties. (AU)

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)
MESSMER, NIGEL RODERICK; GUERRINI, LILIA MUELLER; OLIVEIRA, MAURICIO PINHEIRO. Effect of unmodified kraft lignin concentration on the emulsion and miniemulsion copolymerization of styrene with n-butyl acrylate and methacrylic acid to produce polymer hybrid latex. POLYMERS FOR ADVANCED TECHNOLOGIES, v. 29, n. 3, p. 1094-1106, MAR 2018. Web of Science Citations: 2.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.