A perspective of lignin processing and utilization
Lignin-based thermoplastic materials have shown improved processing abilities and recyclability compared to lignin-based thermosetting polymer networks (Wang et al. 2016). As such, they have gained increased interest as sustainable, cost-effective, and biodegradable alternatives for petroleum-based thermoplastics.
Thermoplastic behavior of lignin with various synthetic
The thermoplasticization of thiolignin (TL) and dioxane lignin (DL) with various synthetic plasticizers has been investigated. The thermal softening temperatures Tsof the lignin–plasticizer systems were measured applying the flow tester technique which is useful for investigating the thermal properties of polymers.
Lignin-Based Thermoplastic Materials - PubMed
As an amorphous thermoplastic material, lignin has a relatively high glass-transition temperature and also undergoes radical-induced self-condensation at high temperatures, which limits its thermal processability. Additionally, lignin-based materials are usually brittle and exhibit poor mechanical properties.
Lignin-Modified Thermoplastic Materials - ScienceDirect
Lignin is a kind of thermoplastic natural polymer, and usually exhibits high impact strength and good heat-resistance. After being compounded with thermoplastic polymer matrices, it can improve the flowability and processing performance of the material.
Effect of plasticizers and polymer blends for processing
The T g of the lignin and the lignin mixed with various amounts of different plasticizers and with different thermo-mechanical mixing were determined using DSC. Plasticizers included glycerol, amyl acetate, N-allyurea, and citric acid, for which the structures are shown in Fig. 2.
- What are lignin-based thermoplastic polymers?
- The properties of these high lignin content thermoplastic polymers are comparable to some of the currently existing petroleum-based polymers. Most of the lignin-based polymer blends required chemical modifications of lignin to improve their thermal and mechanical properties.
- Are lignin-based thermoplastic materials sustainable?
- Lignin-based thermoplastic materials have attracted increasing interest as sustainable, cost-effective, and biodegradable alternatives for petroleum-based thermoplastics. As an amorphous thermoplastic material, lignin has a relatively high glass-transition temperature and also undergoes radical-indu … Lignin-Based Thermoplastic Materials
- Can lignin be used as a thermoplastic?
- Therefore, lignin has been utilized as a thermoplastic through two major approaches: as a nanofiller component for natural or synthetic polymers and as a copolymer used along with other natural or synthetic monomers.
- Are lignin modifications suitable for thermoplastic monomers?
- First, various lignin modifications are discussed in view of controlling the homogeneity, reactivity, processability and compatibility of lignin for successful thermoplastic copolymer synthesis and blend processing. Then, various copolymerization methodologies of lignin applicable for various thermoplastic monomers are reviewed.
- Can lignin-modified thermoplastics improve performance?
- Studies about the structure and properties of lignin-modified thermoplastics have proved that, in lignin/polyester systems, the hydrogen bonds between the carbonyl groups on polyester matrix and the hydroxyl groups on lignin can improve their compatibility and thus improve the overall performance of the composite material.
- What is lignin polymer?
- Lignin is a thermoplastic polymer with high-impact strength and heat-resistance. After being compounded with a thermoplastic polymer matrix, it can improve the flowability and processing performance of the material.
