High-performance biosourced poly(lactic acid)/polyamide 11 blends with controlled salami structure

2013 ◽  
Vol 63 (6) ◽  
pp. 1094-1100 ◽  
Author(s):  
Wenyong Dong ◽  
Xiaojun Cao ◽  
Yongjin Li
Keyword(s):  
Lactic Acid ◽  
High Performance ◽  
Poly Lactic Acid ◽  
Polyamide 11

Study on dual-monomer melt-grafted poly(lactic acid) compatibilized poly(lactic acid)/polyamide 11 blends and toughened melt-blown nonwovens

2018 ◽  
Vol 49 (6) ◽  
pp. 748-772 ◽  
Author(s):  
Feichao Zhu ◽  
Juanjuan Su ◽  
Mingjun Wang ◽  
Munir Hussain ◽  
Bin Yu ◽  
...  
Keyword(s):  
Lactic Acid ◽  
High Performance ◽  
Fiber Diameter ◽  
Filtration Efficiency ◽  
Poly Lactic Acid ◽  
Polyamide 11 ◽  
Rheological Behaviors ◽  
Filtration Resistance ◽  
Thermal Stability Of

With increasing demands on the high-performance and environmental-friendly melt-blown nonwovens (MBs) for separation and filtration, herein, we reported a poly(lactic acid)/polyamide 11 (PLA/PA11) 100% bio-based MBs in situ compatibilized by dual-monomer glycidyl methacrylate–styrene melt-grafted poly(lactic acid) (PLA-g-(St-co-GMA)). The morphology, crystallization, thermal and rheological behaviors of reactive extruded PLA/PA11/PLA-g-(St-co-GMA) melt blends were investigated, and the structure and filtration performance of corresponding MBs were fully characterized. The results indicated that the interface between PLA and PA11 were effectively improved due to the compatibilizer of PLA-g-(St-co-GMA). PA11 promoted the cold crystallization and enhanced the thermal stability of PLA matrix. The reactive blends displayed a higher viscosity with unchanged rheological behaviors compared with PLA. In comparison with PLA MBs, the average fiber diameter and pore size of PLA/PA11/PLA-g-(St-co-GMA) MBs were slightly increased, whereas the strength and toughness were significantly improved. All the PLA/PA11/PLA-g-(St-co-GMA) MBs presented high air permeability and low filtration resistance. High filtration efficiency (>99.8%) could also be obtained especially for the target particles with diameters larger than 2.5 µm.

Clay-filled bio-based blends of poly(lactic acid) and polyamide 11

2012 ◽  
Author(s):  
Anna Nuzzo ◽  
Domenico Acierno ◽  
Giovanni Filippone
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Polyamide 11

Mechanical properties of wood flour/poly (lactic acid) composites coupled with waterborne silane-polyacrylate copolymer emulsion

Holzforschung ◽  
2016 ◽  
Vol 70 (5) ◽  
pp. 439-447 ◽  
Author(s):  
Ru Liu ◽  
Shupin Luo ◽  
Jinzhen Cao ◽  
Yu Chen
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
High Performance ◽  
Coupling Effect ◽  
Wood Flour ◽  
Flexural Modulus ◽  
Coupling Agents ◽  
Poly Lactic Acid ◽  
Effective Coupling ◽  
Methacryloxypropyl Trimethoxysilane

Abstract Wood flour/polylactic acid (WF/PLA) composites were produced with a WF content of 50% based on three types of waterborne polyacrylate (PA) emulsions including a PA homopolymer emulsion and two types of silane-PA copolymer emulsions as coupling agents. Two silanes were in focus, namely, γ-methacryloxypropyl- trimethoxysilane (silane-1) and vinyltrimethoxysilane (silane-2). The emulsions and the modified WFs were characterized, and the effects were investigated in terms of emulsion type and their loading levels on the mechanical properties of WF/PLA composites. (1) Both types of silanes could be successfully copolymerized with PA to form stable emulsions. (2) With increasing PA loading, the mechanical properties (except for flexural modulus) of the composites increased at first before reaching the maximum values at 4% PA loading and then the properties worsened. However, these values were larger than those of pure composites, especially in cases when PA-silane emulsions were applied. (3) PA modified with silane-1 showed the best coupling effect among all the three PA emulsions. The results can be interpreted that PA emulsions are effective coupling agents for the preparation of high-performance WPCs.

External flow-induced highly oriented and dense nanohybrid shish-kebabs: A strategy for achieving high performance in poly (lactic acid) composites

2021 ◽  
pp. 101042
Author(s):  
Tairong Kuang ◽  
Maolin Zhang ◽  
Xinghan Lian ◽  
Jingbing Zhang ◽  
Tong Liu ◽  
...  
Keyword(s):  
Lactic Acid ◽  
High Performance ◽  
External Flow ◽  
Poly Lactic Acid

Melt Phase Polymerization of Racemic Lactide to High-Performance Poly(Lactic Acid)

2014 ◽  
Vol 86 (4) ◽  
pp. 519-523 ◽  
Author(s):  
Caspar Paetz ◽  
Rainer Hagen
Keyword(s):  
Lactic Acid ◽  
High Performance ◽  
Poly Lactic Acid ◽  
Melt Phase

Bio-based green composites with high performance from poly(lactic acid) and surface-modified microcrystalline cellulose

2012 ◽  
Vol 22 (31) ◽  
pp. 15732 ◽  
Author(s):  
Lin Xiao ◽  
Yiyong Mai ◽  
Feng He ◽  
Longjiang Yu ◽  
Limin Zhang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Microcrystalline Cellulose ◽  
High Performance ◽  
Poly Lactic Acid ◽  
Green Composites ◽  
Surface Modified

scholarly journals Functional Nanocomposite Films of Poly(Lactic Acid) with Well-Dispersed Chitin Nanocrystals Achieved Using a Dispersing Agent and Liquid-Assisted Extrusion Process

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4557
Author(s):  
Mitul Patel ◽  
Daniel Schwendemann ◽  
Giorgia Spigno ◽  
Shiyu Geng ◽  
Linn Berglund ◽  
...  
Keyword(s):  
Lactic Acid ◽  
High Performance ◽  
Functional Materials ◽  
Microscopy Study ◽  
Extrusion Process ◽  
Nanocomposite Films ◽  
Poly Lactic Acid ◽  
Dispersing Agent ◽  
Triethyl Citrate ◽  
Performance Functional

The development of bio-based nanocomposites is of high scientific and industrial interest, since they offer excellent advantages in creating functional materials. However, dispersion and distribution of the nanomaterials inside the polymer matrix is a key challenge to achieve high-performance functional nanocomposites. In this context, for better dispersion, biobased triethyl citrate (TEC) as a dispersing agent in a liquid-assisted extrusion process was used to prepare the nanocomposites of poly (lactic acid) (PLA) and chitin nanocrystals (ChNCs). The aim was to identify the effect of the TEC content on the dispersion of ChNCs in the PLA matrix and the manufacturing of a functional nanocomposite. The nanocomposite film’s optical properties; microstructure; migration of the additive and nanocomposites’ thermal, mechanical and rheological properties, all influenced by the ChNC dispersion, were studied. The microscopy study confirmed that the dispersion of the ChNCs was improved with the increasing TEC content, and the best dispersion was found in the nanocomposite prepared with 15 wt% TEC. Additionally, the nanocomposite with the highest TEC content (15 wt%) resembled the mechanical properties of commonly used polymers like polyethylene and polypropylene. The addition of ChNCs in PLA-TEC15 enhanced the melt viscosity, as well as melt strength, of the polymer and demonstrated antibacterial activity.

Study on the Crystallinity and Mechanical Properties of PC/PLA/LLDPE/ Montmorillonite Blends

2013 ◽  
Vol 739 ◽  
pp. 38-41
Author(s):  
Yi Chen ◽  
Yue Peng ◽  
Wen Yong Liu ◽  
Guang Sheng Zeng ◽  
Xiang Gang Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Impact Strength ◽  
High Performance ◽  
Impact Resistance ◽  
Low Density Polyethylene ◽  
Poly Lactic Acid ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Elongation At Break

Polycarbonate/poly (lactic acid)/(PC/PLA) blend is a kind of novel potential material for introducing the degradability of PLA to high performance PC. However, the bad compatibility between PC and PLA results in poor impact resistance and strength, which limits its applications. For resolving the problem, linear low density polyethylene (LLDPE) was added into blend to improve the mechanical properties, especially the toughness. Meantime, nanosized montmorillonite was also used as an additive for modifying the blend. The results showed that the the tensile and impact strength, the elongation at break of PC/PLA all be improved with the increase of LLDPE, the nanosized montmorillonite could also increase the strength of blends when the content is lower than wt5% of blends.

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