Novel soybean-oil-based (SBO-based) epoxy acrylate (EA) resins were developed via ring-opening reaction of epoxidized soybean oil (ESO) with hydroxyethyl methacrylated maleate (HEMAMA) precursor, a synthesized unsaturated carboxylic acid having two active C═C groups and side methyl group. Experimental conditions for the synthesis precursor SBO-based EA (ESO-HEMAMA) product studied, their chemical structures confirmed by FT-IR, 1H NMR, 13C gel permeation chromatography. Subsequently,...

In order to further explore the feasibility of application residue Chinese herbal medicine in FDM 3D technology and enrich kinds printing materials, Astragalus powder(ARP)/poly(lactic acid) (PLA) biocomposite was 3D-printed, meanwhile, two traditional biocomposites, i.e., wood flour (WF)/PLA rice straw powder (RSP)/PLA, were prepared by same method, properties biocomposites comparatively investigated. The results showed that, tensile flexural strengths ARP/PLA 28.33 MPa 97.60 MPa,...

Poly(lactic acid) (PLA) and Poly(butylene succinate) (PBS) were chosen as raw materials melt blended by a twin screw extruder pelletized; then, the pellets extruded into filaments; after that, various PBS/PLA blending samples prepared Fused Deposition Molding (FDM) 3D printing technology using filaments obtained effect of dosage PBS on technological properties 3D-printed specimens was investigated. For comparison, PLA specimen also FDM printing. The tensile strength, modulus, thermal...

Biodegradable polylactic acid (PLA) has been widely used in fused deposition modeling (FDM) 3D printing. In order to improve its comprehensive properties printing, this study, 0-40% content of polybutylene adipate terephthalate(PBAT) was selected be blended with PLA a twin-screw extruder; the resulting pellets were drawn into homogeneous filament; then, PBAT/PLA samples prepared by FDM and effects dosage PBAT on mechanical properties, thermal behavior, surface wettability melt flowability...

In order to improve the properties of wood flour (WF)/poly(lactic acid) (PLA) 3D-printed composites, WF was treated with a silane coupling agent (KH550) and acetic anhydride (Ac2O), respectively. The effects modification addition acrylicester resin (ACR) as toughening on flowability WF/PLA composite filament mechanical, thermal, dynamic mechanical thermal water absorption fused deposition modeling (FDM) specimens were investigated. results indicated that melt index (MI) decreased after...

In order to develop a new kind of filament material for the fused deposition modeling (FDM) 3D printing, residue Astragalus (ROA), one most important Chinese herbal medicines, and polylactic acid were chosen as raw materials FDM print biomass composite specimens, effects printing parameters on properties specimens investigated. The results indicated that mechanical thermal stability printed specimen affected obviously by while melting crystallization behavior little affected. For...

To develop a new kind of environment-friendly composite filament for fused deposition modeling (FDM) 3D printing, rice straw powder (RSP)/poly(lactic acid) (PLA) biocomposites were FDM-3D-printed, and the effects particle size pretreatment RSP on properties RSP/PLA investigated. The results indicated that 120-mesh (named 120#RSP/PLA) showed better performance than prepared with other sizes. Infrared by different methods was successful, scanning electron microscopy composites after exhibited...

Astragalus residue powder (ARP)/thermoplastic starch (TPS)/poly(lactic acid) (PLA) biocomposites were prepared by fused-deposition modeling (FDM) 3D-printing technology for the first time in this paper, and certain physico-mechanical properties soil-burial-biodegradation behaviors of investigated. The results showed that after raising dosage ARP, tensile flexural strengths, elongation at break thermal stability sample decreased, while moduli increased; TPS, all decreased. Among samples,...

Fused deposition molding (FDM) is a commonly used 3D printing method, and polylactic acid (PLA) has become one of the most important raw materials for this technology due to its excellent warping resistance. However, mechanical properties are insufficient. Polybutylene adipate terephthalate (PBAT) characterized by high toughness low rigidity, which can complement performance PLA. The biodegradable polymers produced blending two have thus been replace petroleum-based plastics in recent years,...

Wood flour (WF)-reinforced poly (butylene adipate-co-terephthalate) (PBAT) composites were successfully fabricated by injection-molding process after being mixed using an extruder. The effects of fiber modifications, including mercerization, acetylation, as well coupling agent treatment on the properties WF/PBAT composites, studied. results indicated that all modifications increased mechanical (e.g., tensile strength, modulus, flexural elongation at break, and Charpy impact strength)...

Abstract Aqueous zinc‐ion batteries have attracted widespread attention due to their high safety and energy density. However, practical application is hindered by insufficient low‐temperature performance rampant side reactions on Zn metal anode. In this work, a freeze‐casting method utilized acquire the unidirectional multilevel pore structure in polyvinyl alcohol (PVA)‐based hydrogel. Then, strengthen PVA chain rearrange its hydrogen bonds via solution substitution process. The ordered...

In this study, poly(lactic acid) biocomposites were prepared from sugarcane bagasse (SB) via extrusion and injection molding. The effects of the content inorganic salt modification SB on properties investigated. results showed that incorporation reduced biocomposites’ mechanical strength modulus as well thermal stability but increased their crystallinity, hydrophobicity, water absorption compared with neat PLA. Among all biocomposites, sample containing 30 wt % SB(SB-30/PLA) had best...

The research aim of this work was to understand the effects soil burial rice straw on morphology and properties 3D-printed powder (RSP)/polylactic acid (PLA) biocomposites. buried in for various days grounded sieved into at 120 mesh. RSP then mixed with PLA a mass ratio 15/100 mixture extruded filament, followed by fused deposition modeling 3D printing process. as-prepared products were characterized terms morphological, mechanical, thermal, nonisothermal crystallization properties. results...

Astragalus is widely cultivated in China, and the residue of particles (ARP) can be used as reinforcements fused filament-fabricated (FFF) natural fiber/Poly(lactic acid)(PLA) biocomposites. To clarify degradation behavior such biocomposites, 3D-printed 11 wt% ARP/PLA samples were buried soil, effects soil burial duration on physical appearance, weight, flexural properties, morphology, thermal stability, melting, crystallization properties investigated. At same time, PLA was chosen a...

This paper reports a convenient one-pot method integrating novel solvent-exchange into in situ melt polycondensation to fabricate unsaturated polyester nanocomposites containing functionalized graphene sheets (FGS). A was first developed prepare oxide/ethylene glycol (GO/EG) dispersions reactor equipped with fractionating device. The prepared were applied successively composites via the same reactor. dispersion behavior of GO/EG characterized by atomic force microscopy (AFM). structures and...

Graphene-reinforced tung oil (TO)-based unsaturated polyester nanocomposites were prepared via in situ melt polycondensation intergrated with Diels–Alder addition. Functionalized graphene sheets derived from oxide (GO) then extracted the obtained and carefully characterized. Furthermore, dispersion state of nanosheets cured polymer composites ultimate properties resultant biobased investigated. Mechanical thermal TO-based resin (UPR) greatly improved by incorporation GO. For example, at...

New tung oil (TO)-based, unsaturated, co-ester (Co-UE) macromonomers bearing steric hindrance were synthesized by modifying a TO-based maleate (TOPERMA) monomer with an anhydride structure hydroxyethyl methacrylate (HEMA) and methallyl alcohol (MAA), respectively. The obtained Co-UE monomers (TOPERMA-HEMA TOPERMA-MAA) then characterized 1 H NMR gel permeation chromatography (GPC). For comparison, acrylate (HEA)-modified TOPERMA (TOPERMA-HEA) was also characterized. Subsequently, the Co-UEs...