Towards Sustainable Chemical Manufacturing: Polylactic Acid – A Sustainable Polymer?

Clark, James H.; Hardy, Jeffrey

doi:10.1002/0470014202.ch7

Cited by 9 publications

(5 citation statements)

References 6 publications

(17 reference statements)

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“…In US, the highest tonnage in plastic MSW is containers and plastic packages [9,10]. In Europe, packaging represents 37.2% of all plastics consumed and 35% worldwide [11]. Recycling of plastic wastes is difficult owing to its commingled nature and the difficulty in identification, separation and classification [12,13,14].…”

Section: Evaluation Of the Su Evaluation Of The Su Evaluation Of The mentioning

confidence: 99%

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Sojobi¹,

Owamah²

2014

Nig. J. Tech.

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ABSTRACT ABSTRACTThis study evaluates an alternative solid waste management option for Low This study evaluates an alternative solid waste management option for Low This study evaluates an alternative solid waste management option for Low This study evaluates an alternative solid waste management option for Low commonly called "pure water sachet" as partial replacement of sand in concrete. Three mix ratios of 1:1:2, 1:1.5:3, commonly called "pure water sachet" as partial replacement of sand in concrete. Three mix ratios of 1:1:2, 1:1.5:3, commonly called "pure water sachet" as partial replacement of sand in concrete. Three mix ratios of 1:1:2, 1:1.5:3, commonly called "pure water sachet" as partial replacement of sand in concrete. Three mix ratios of 1:1:2, 1:1.5:3, 1:2:4 were used while the LDPE w 1:2:4 were used while the LDPE w 1:2:4 were used while the LDPE w 1:2:4 were used while the LDPE waste materials aste materials aste materials aste materials Nigeria. The pulverized LDPE plastic waste, with compacted and uncompacted bulk densities of 362.9 kg/m Nigeria. The pulverized LDPE plastic waste, with compacted and uncompacted bulk densities of 362.9 kg/m Nigeria. The pulverized LDPE plastic waste, with compacted and uncompacted bulk densities of 362.9 kg/m Nigeria. The pulverized LDPE plastic waste, with compacted and uncompacted bulk densities of 362.

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Section: Evaluation Of the Su Evaluation Of The Su Evaluation Of The mentioning

confidence: 99%

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Sojobi¹,

Owamah²

2014

Nig. J. Tech.

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“…[1][2][3][4]. Also, its significant properties like biodegradability, sustainability, and recyclability have attracted researchers' attention in recent decades [3,[5][6][7][8][9][10][11]. However, an important area of PLA application is 'medical textiles', including fixation of fractures in bones, various delivery systems for drugs, and sutures which are further used in the process of surgery [4,8,11,12].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Natural Dyes from Turmeric (Curcuma longa) and their Application on Polylactic Acid Fiber

Cui

Nasir

2022

JDT

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This research presents an eco-friendly approach towards Response Surface Methodology (RSM). The current study is based on the optimization of the dyeing process of biodegradable polylactic acid (PLA) fiber using with natural dyes of turmeric extractions by using Soxhlet extraction technique. The dyeing process was carried out by using Daelim Starlet III, which is an infrared dyeing machine. Three independent variables were selected, including pH, time, and temperature. According to the standard test protocols, dyed samples were evaluated for color strength (K/S), CIELab values, fiber tenacity, and fiber elongation. ANOVA test results of the Linear Model exhibited that the model terms have a significant effect on K/S and the physical strength of fiber. Moreover, the observed values were in agreement with the predicted values and the suggested equation model was satisfactory and accurate. A temperature of 100 °C with pH 5 and time duration of 30 minutes in the dyeing process were observed to achieve optimum dyed PLA fibers, exhibiting appreciable strength and elongation. Lastly, dyed fibers exhibited satisfactory color fastness ratings. Index Terms: color strength, exhaustion, natural dyeing, polylactic acid fiber, turmeric

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“…5 Packaging accounts for 37.2% of all plastics consumed in Europe and 35% worldwide. 6 Plastic usage superseded all other products for its properties and characteristics, including steel and glass. For that, a 5% increase in the global production of plastic has been observed in the last 20 years, reaching over 300 million tons annually, and are overwhelmingly used in all commodities from wrapping food to making must-have consumer products.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical investigations of SiC and Al₂O₃–reinforced HDPE

Singh

Ahuja

2018

Journal of Thermoplastic Composite Materials

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This research work highlights the thermomechanical investigations of silicon carbide (SiC) and aluminum oxide (Al2O3)–reinforced high-density polyethylene (HDPE)–based feed stock filament of commercial fused deposition modeling (FDM) setup. The recycled HDPE waste was collected (from domestic waste) and washed with water jet for removal of contamination in the first stage. After contamination removal, rheological and thermal behavior (melt flow index, melting temperature, decomposition and enthalpy, etc.) of the unreinforced and reinforced polymer matrix was observed. The SiC and Al2O3 reinforcements in the HDPE matrix have been controlled by twin-screw extrusion process, followed by its processing on single-screw extrusion for preparation of FDM feed stock filament. The feed stock filament prepared by single-screw extruder was subjected to tensile test for mechanical properties (such as peak strength, peak load, and Young’s modulus). After ascertaining mechanical properties, multifactor optimization has been performed. Finally, scanning electron micrographs were obtained to understand the distribution of ceramic particles. This study highlights the detailed procedure for managing the polymer waste with improved mechanical properties by considering multifactor optimization. This will enhance the sustainability and also helps to develop low-cost, in-house FDM filament for possible applications as rapid tooling.

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Towards Sustainable Chemical Manufacturing: Polylactic Acid – A Sustainable Polymer?

Cited by 9 publications

References 6 publications

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Extraction of Natural Dyes from Turmeric (Curcuma longa) and their Application on Polylactic Acid Fiber

Thermomechanical investigations of SiC and Al₂O₃–reinforced HDPE

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Towards Sustainable Chemical Manufacturing: Polylactic Acid – A Sustainable Polymer?

Cited by 9 publications

References 6 publications

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Evaluation of the Suitability of Low-Density Polyethylene (LDPE) Waste as Fine Aggregate in Concrete

Extraction of Natural Dyes from Turmeric (Curcuma longa) and their Application on Polylactic Acid Fiber

Thermomechanical investigations of SiC and Al2O3–reinforced HDPE

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Product

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Thermomechanical investigations of SiC and Al₂O₃–reinforced HDPE