Adipic acid – glutaric anhydride – epoxidised linseed oil biobased thermosets with tunable properties

Materials Today Communications ◽

10.1016/j.mtcomm.2016.03.004 ◽

2016 ◽

Vol 7 ◽

pp. 51-58 ◽

Cited By ~ 7

Author(s):

Cheng Ding ◽

Guangmao Tian ◽

Avtar Matharu

Keyword(s):

Adipic Acid ◽

Linseed Oil ◽

Glutaric Anhydride ◽

Tunable Properties

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Dynamic–Mechanical and Decomposition Properties of Flax/Basalt Hybrid Laminates Based on an Epoxidized Linseed Oil Polymer

Polymers ◽

10.3390/polym13040479 ◽

2021 ◽

Vol 13 (4) ◽

pp. 479

Author(s):

Dana Luca Motoc ◽

Jose Miguel Ferri ◽

Santiago Ferrandiz-Bou ◽

Daniel Garcia-Garcia ◽

Rafael Balart

Keyword(s):

Linseed Oil ◽

Reinforced Composites ◽

Glutaric Anhydride ◽

Transfer Molding ◽

Dynamic Mechanical ◽

Thermal Gravimetry ◽

Hybrid Laminates ◽

Two Stages ◽

Decomposition Properties ◽

Epoxidized Linseed Oil

This contribution focuses on the development of flax and flax/basalt hybrid reinforced composites based on epoxidized linseed oil (ELO) resin, exploiting the feasibility of different ratios of glutaric anhydride (GA) to maleinized linseed oil (MLO) in the hardener system (50:0, 40:10 and 30:20 wt.%) to provide crosslinked thermosets with balanced properties. The hybrid laminates have been manufactured by resin transfer molding (RTM) and subjected to dynamic–mechanical (DMA) and thermal gravimetry (TGA) analysis. The presence of glutaric anhydride (GA) resulted in hard and relatively brittle flax and flax/basalt laminates, whose loss moduli decreased as the number of basalt plies diminished. Furthermore, the increase in MLO content in the GA:MLO hardener system shifted the glass transition temperatures (Tg) from 70 °C to 59 and 56 °C, which is representative of a decrease in brittleness of the crosslinked resin. All samples exhibited two stages of their decomposition process irrespective of the MLO content. The latter influenced the residual mass content that increased with the increase of the MLO wt.% from 10 to 30 wt.%, with shifts of the final degradation temperatures from 410 °C to 425 °C and 445 °C, respectively.

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