MECHANICAL PROPERTIES OF SBR COMPOSITES REINFORCED WITH TONER WASTE

Dener Silva Souza; gleyson tadeu de  almeida santos; Gabriel Deltrejo Ribeiro; Samara Araujo Kawall; Leandro Ferreira Pinto; Carlos Toshiyuki Hiranobe; Renivaldo Jose dos Santos

Todos os Trabalhos

Trabalho

Título do Trabalho

MECHANICAL PROPERTIES OF SBR COMPOSITES REINFORCED WITH TONER WASTE

Autores

Dener Silva Souza
gleyson tadeu de almeida santos
Gabriel Deltrejo Ribeiro
Samara Araujo Kawall
Leandro Ferreira Pinto
Carlos Toshiyuki Hiranobe
Renivaldo Jose dos Santos

Modalidade

Resumo

Área temática

Ciência dos Materiais

Data de Publicação

23/01/2026

País da Publicação

Brasil

Idioma da Publicação

pt-BR

Página do Trabalho

https://www.even3.com.br/anais/virtppgctm-571248/1410086-mechanical-properties-of-sbr-composites-reinforced-with-toner-waste

ISBN

978-65-272-2157-9

Palavras-Chave

SBR rubber, toner waste, mechanical properties, reinforcement, sustainability

Resumo

This study explores the incorporation of toner waste (TW) from printer cartridges as an alternative reinforcing filler in styrene-butadiene rubber (SBR) composites, focusing on their mechanical performance and sustainability. Composites were prepared with TW contents ranging from 0 to 50 phr and characterized according to ASTM standards for tensile strength, tear resistance, hardness, and abrasion tests. The results demonstrated that intermediate TW contents (30–40 phr) significantly enhanced mechanical properties. Hardness values increased from 50 to 55 Shore A, tensile strength rose from 1.08 to 1.73 MPa, and tear resistance improved from 21.93 to 33.08 N. These improvements were associated with efficient filler dispersion within the matrix and a higher crosslink density (0.94 → 1.18 × 10⁻⁴ mol·cm⁻³), which strengthened the polymer–filler interaction and promoted better stress transfer. The TW particles acted as partial reinforcing agents, limiting polymer chain mobility and improving rigidity without excessively compromising elasticity. However, when the filler concentration exceeded 40 phr, a tendency for agglomeration was observed, which resulted in reduced reometric torque and higher abrasion loss (158 → 202 mm³/40 m). Despite this, the 40 phr formulation exhibited an excellent balance between stiffness, toughness, and resistance to wear, confirming its potential as an optimized composition. After accelerated aging tests, all composites showed decreased tensile properties due to thermo-oxidative degradation; nevertheless, samples containing higher TW content retained better performance compared to the unfilled matrix. This result indicates a protective barrier effect of TW, reducing oxygen diffusion and delaying degradation. The presence of metallic oxides and silica within the waste may have contributed to this behavior, acting synergistically with the vulcanization system. Overall, the incorporation of TW up to 40 phr proved to be technically viable and environmentally promising for industrial applications requiring mechanical strength and durability, such as shoe soles or vibration-damping components. In addition to reducing the environmental impact associated with toner disposal, the reuse of this solid residue supports circular economy principles and aligns with several United Nations Sustainable Development Goals (SDGs), particularly SDG 9 (Industry, Innovation and Infrastructure) and SDG 12 (Responsible Consumption and Production).

Título do Evento: 6ª Reunião Técnica do Programa de Pós-graduação em Ciência e Tecnologia de Materiais
Cidade do Evento: Presidente Prudente
Título dos Anais do Evento: Anais da 6ª Reunião Técnica do Programa de Pós-graduação em Ciência e Tecnologia de Materiais
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

SOUZA, Dener Silva et al.. MECHANICAL PROPERTIES OF SBR COMPOSITES REINFORCED WITH TONER WASTE.. In: Anais da 6ª Reunião Técnica do Programa de Pós-graduação em Ciência e Tecnologia de Materiais. Anais...Presidente Prudente(SP) UNESP, 2025. Disponível em: https//www.even3.com.br/anais/virtppgctm-571248/1410086-MECHANICAL-PROPERTIES-OF-SBR-COMPOSITES-REINFORCED-WITH-TONER-WASTE. Acesso em: 09/02/2026