Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 96 for “"Hemp"”.
-
The Influence of Fibre Processing and Treatments on Hemp Fibre/Epoxy and Hemp Fibre/PLA Composites
… reinforce epoxy and polylactic acid (PLA) with hemp fibre to produce improved composites by optimising the fibre treatment methods, composite processing methods, and fibre/matrix interfacial bonding. An investigation was conducted to obtain a suitable fibre alkali treatment method to: (i) remove …
-
Industrial Hemp: Building a Sustainable Future
The hemp plant has been used throughout the world since ancient times. In the United States, there is a rich cultural and political history associated with this hearty and prolific plant. It is only in the past century that its value has been questioned and cast aside in the name of greed, …
-
Fabrication of PLA-hemp 3D printing filaments
… of polylactic acid (PLA) composites infused with hemp fibers for 3D printing applications. The project aims to leverage the intrinsic properties of hemp fibers and PLA to create a material that mitigates brittleness and enhances biodegradability while maintaining mechanical performance and …
-
Insect pest management in hemp in Virginia
For the first time in many decades, a hemp pilot program was initiated in Virginia in 2016. Outdoor surveys were conducted in the 2017 and 2018 field seasons to record insect presence and feeding injury to plants. Multiple insect pests were present, including corn earworm (Helicoverpa zea [Boddie]) …
-
Performance of Hemp-Fibre Reinforced Polypropylene Composite Materials
… have the potential to meet this need. Industrial hemp fibre is amongst the strongest of the natural fibres available, and possesses a similar specific stiffness to E-glass, but with additional benefits such as low cost and low production energy requirements. The favourable mechanical properties of …
-
Industrial hemp agronomic management for grain, fiber, and forage
… involved testing several aspects of industrial hemp (Cannabis sativa L.) production, including the impact of tillage on seed and fiber production, optimal harvest time for seed yield and quality, the response of seed yield to nitrogen fertility rates, and the potential of hemp as a forage crop. …
-
Processing of Hemp Fibre Using Enzyme/Fungal Treatment for Composites
Hemp fibres compete very well with glass fibres in terms of their specific strength and stiffness and so can replace glass fibres as reinforcement in composites. Combining them with thermoplastics results in potentially cheap recyclable composite materials. The adhesion between the hemp fibre and …
-
Embracing the Air: The Sensory Experience of Hemp-Lime Architecture
… I explore the multi-sensory properties of hemp-lime construction as an antidote to the overly visual experience of contemporary architecture. I begin design from the material and elaborate on the senses involved with the dynamics of hemp walls: the airy trio of humidity, thermal and sound. …
-
Systemic Design for circular and local textiles: Designing a hemp ecosystem
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Impacts of breeding and cultivation practices on cannabinoids in industrial hemp
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
-
Industrial Hemp (Cannabis sativa L.) Germination Temperatures and Herbicide Tolerance Screening
Industrial hemp (Cannabis sativa L.) has a long history of human use. Early in the 20th century, some predicted hemp would be the first billion dollar crop given its multiple industrial applications. Government policy that restricted, then prohibited, hemp's use in the U.S. prevented that from …
-
Wave Propagation and Damage Characterization in Natural Fiber Hemp and LLDPE Composite
… explore the static and dynamic properties of the hemp and linear low density polyethylene (LLDPE) and determine impact absorbing capability using the above mentioned properties. LLDPE is surface-treated with maleic anhydride grafted polyethylene (MA-g-PE) and sodium hydroxide (NaOH). A melt-mixing …
-
Mechanical Performance of Industrial Hemp Fibre Reinforced Polylactide and Unsaturated Polyester Composites
… on the mechanical properties of industrial hemp fibre reinforced polylactide (PLA) and unsaturated polyester (UPE) composites. Surface treatment of hemp fibres was investigated as a means of improving the fibre/matrix interfacial strength and mechanical properties of hemp fibre reinforced …
-
Evaluation of Masculinization Treatments to Produce Feminized Hemp Seed (Cannabis sativa L.)
<p>Cannabis sativa L. (hemp) develops plants with either male or female flowers, and growers of hemp greatly prefer female flowers which bear the glandular trichomes that contain cannabinoids. Feminized (all female) seeds are highly desired, which are produced by crossing a female plant with a …
-
Improving the performance of polypropylene matrix composite materials using engineered hemp fibre mats
… compete for future use. Amongst natural fibres, hemp fibres are an attractive alternative reinforcement to synthetic fibres due to their favourable mechanical properties as well as availability. Additionally, compared to other natural fibres, hemp fibres are more valuable for the bio-based …
-
Key volatile and nonvolatile off-flavor characterization for nine different hemp protein powders
Eight commercial hemp protein products and one in-house hemp protein sample was characterized by physiochemical, food functionality, and flavor properties. The commercial protein samples originated from either hulled or whole hemp seeds. The hulled seed samples were significantly richer in protein …
-
Assessing the Challenges and Opportunities in the South African Industrial Hemp Value Chain
… as many countries have decriminalised industrial hemp cultivation because of its multiple benefits, including its use as a carbon-friendly raw material for diverse industries and its environmentally sustainable cultivation practices. South Africa officially decriminalised industrial hemp in 2021; …
-
Development of optimal dyeing methods with natural dyes for environmentally friendly hemp textile
… including tea, pomegranate, and myrobalan on hemp fabric. The basic purpose of this study was to develop a natural dyeing process for natural fibers that improved wash fastness. It focused on the formulation for dyeing with natural colorants, optimization of the dyeing techniques, and …
-
An assessment of medicinal hemp plant extracts as natural antibiotic and immune modulation phytotherapies
… evaluate the antimicrobial efficacy of medicinal hemp plant extracts to determine the antibacterial effects of indigenous Sansevieria species and exotic Cannabis sativa phytotherapy varieties. This study also assessed whether aqueous o
-
Harakeke fibre as reinforcement in epoxy matrix composites and its hybridisation with hemp fibre
… and to assess the hybridisation of harakeke/hemp hybrid composites. Both short and long fibres were used as reinforcement, while a low viscosity epoxy resin was used as the matrix. Short fibres were alkali treated before being used to reinforce epoxy, while long fibres were used as supplied. …
Page 1 of 5