Preparation of Renewable Epoxy-Amine Resins With Tunable Thermo-Mechanical Properties, Wettability and Degradation Abilities From Lignocellulose- and Plant Oils-Derived Components

Hollande, Louis; Marcolino, Izia Do; Balaguer, Patrick; Domenek, Sandra; Gross, Richard A.; Allais, Florent

doi:10.3389/fchem.2019.00159

Cited by 27 publications

(19 citation statements)

References 37 publications

(43 reference statements)

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“…A sustainable approach to solve this plastic waste problem to some extent is designing and using renewably sourced and biodegradable polymers. [235] Examples are the synthesis of biobased acrylic polymers using 2H-HBO derived from renewable sources [236] or from bio-based Cyrene TM , [237] bio-based watersoluble aromatic polymers produced from lignin-based compounds, [238] bis-phenols, and trisphenol from renewable resources for the production of poly(ester urethane)s, and epoxy-amine resins, [239][240][241][242][243] to name a few. Edible films have also entered the packaging market as a sustainable solution to plastic waste.…”

Section: Other Challengesmentioning

confidence: 99%

Strategic Approach Towards Plastic Waste Valorization: Challenges and Promising Chemical Upcycling Possibilities

et al. 2021

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Plastic waste, which is one of the major sources of pollution in the landfills and oceans, has raised global concern, primarily due to the huge production rate, high durability, and the lack of utilization of the available waste management techniques. Recycling methods are preferable to reduce the impact of plastic pollution to some extent. However, most of the recycling techniques are associated with different drawbacks, high cost and downgrading of product quality being among the notable ones. The sustainable option here is to upcycle the plastic waste to create high-value materials to compensate for the cost of production. Several upcycling techniques are constantly being investigated and explored, which is currently the only economical option to resolve the plastic waste issue. This Review provides a comprehensive insight on the promising chemical routes available for upcycling of the most widely used plastic and mixed plastic wastes. The challenges inherent to these processes, the recent advances, and the significant role of the science and research community in resolving these issues are further emphasized.

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Section: Other Challengesmentioning

confidence: 99%

Strategic Approach Towards Plastic Waste Valorization: Challenges and Promising Chemical Upcycling Possibilities

et al. 2021

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“…Although many studies have focused on utilizing lignin in epoxy resin, [23,27,33,34] they mostly used modified lignin (fractionated or lignin monomers) [23,27,29] . For instance, several studies used small compounds obtained from lignin, including syringaresinol, [35] isosorbide diferulate, [36,37] bisguaiacol, [22] diphenolic acid, [38] and ferulic acid [39–41] to synthesize epoxy resins. They reported that the cured epoxy thermosets made with lignin‐derived monomers/dimers had comparable properties to DGEBA thermosets, and properties of the epoxy systems can be tunable by using various curing agents.…”

Section: Introductionmentioning

confidence: 99%

Choosing the Right Lignin to Fully Replace Bisphenol A in Epoxy Resin Formulation

et al. 2021

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Thirteen unmodified lignin samples from different biomass sources and isolation processes were characterized and used to entirely replace bisphenol A (BPA) in the formulation of solubilized epoxy resins using a developed novel method. The objective was to measure the reactivity of different lignins toward bio‐based epichlorohydrin (ECH). The epoxy contents of various bio‐based epoxidized lignins were measured by titration and 1H NMR spectroscopy methods. A partial least square regression (PLS‐R) model with 92 % fitting accuracy and 90 % prediction ability was developed to find correlations between lignin properties and their epoxy contents. The results showed that lignins with higher phenolic hydroxy content and lower molecular weights were more suitable for replacing 100 % of toxic BPA in the formulation of epoxy resins. Additionally, two epoxidized lignin samples (highest epoxy contents) cured by using a bio‐based hardener (Cardolite GX‐3090) were found to show comparable thermomechanical performances and thermal stabilities to a petroleum‐based (DGEBA) epoxy system.

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“…In the case of water subjected to surface defects, the angle of touch with air is 180°or higher (Yuan and Lee, 2013). The scanning electron microscopy machine can be used to examine the distribution and obvious adhesion of particles together with the polymer matrix (dos Santos Barros et al, 2019;Luz et al, 2008;Hu et al, 2020;Hollande et al, 2019). The good wettability of the composites demonstrates well-spreading particle distribution, as well as the appearance of microbubbles and agglomerates.…”

Section: Wettabilitymentioning

confidence: 99%

The potential of metal epoxy composite (MEC) as hybrid mold inserts in rapid tooling application: a review

Hussin

Sharif

Rahim

et al. 2021

RPJ

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Purpose Rapid tooling (RT) integrated with additive manufacturing technologies have been implemented in various sectors of the RT industry in recent years with various kinds of prototype applications, especially in the development of new products. The purpose of this study is to analyze the current application trends of RT techniques in producing hybrid mold inserts. Design/methodology/approach The direct and indirect RT techniques discussed in this paper are aimed at developing a hybrid mold insert using metal epoxy composite (MEC) in increasing the speed of tooling development and performance. An extensive review of the suitable development approach of hybrid mold inserts, material preparation and filler effect on physical and mechanical properties has been conducted. Findings Latest research studies indicate that it is possible to develop a hybrid material through the combination of different shapes/sizes of filler particles and it is expected to improve the compressive strength, thermal conductivity and consequently increasing the hybrid mold performance (cooling time and a number of molding cycles). Research limitations/implications The number of research studies on RT for hybrid mold inserts is still lacking as compared to research studies on conventional manufacturing technology. One of the significant limitations is on the ways to improve physical and mechanical properties due to the limited type, size and shape of materials that are currently available. Originality/value This review presents the related information and highlights the current gaps related to this field of study. In addition, it appraises the new formulation of MEC materials for the hybrid mold inserts in injection molding application and RT for non-metal products.

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Preparation of Renewable Epoxy-Amine Resins With Tunable Thermo-Mechanical Properties, Wettability and Degradation Abilities From Lignocellulose- and Plant Oils-Derived Components

Cited by 27 publications

References 37 publications

Strategic Approach Towards Plastic Waste Valorization: Challenges and Promising Chemical Upcycling Possibilities

Strategic Approach Towards Plastic Waste Valorization: Challenges and Promising Chemical Upcycling Possibilities

Choosing the Right Lignin to Fully Replace Bisphenol A in Epoxy Resin Formulation

The potential of metal epoxy composite (MEC) as hybrid mold inserts in rapid tooling application: a review

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