نتایج جستجو برای: hemp fibers
تعداد نتایج: 72293 فیلتر نتایج به سال:
This paper presents the outcomes from an extensive investigation on the structure and geometry of single hemp fibres, as well as configurations and related tensile strength (TS) of hemp fibres, with the aid of field emission scanning and optical microscopy. The results showed that 1) the TS increased with the decrease of the diameter of individual test pieces, due possibly to the stacks of mult...
Natural fibers have been used to reinforce materials for many years. More currently they have been employed in combination with plastics. Many types of natural fibers have been investigated for use in plastics including flax, hemp, jute, cotton and banana. Natural fibers have the advantage that they are renewable resources and have marketing appeal. These agricultural wastes can be used to prep...
Applications of hemp fibers, as a promising natural material in the textile field, mostly require improved fiber properties. In this paper, oxidation fibers with potassium permanganate was applied to reduce amount non-cellulosic substances and moisture sorption; introduce functional groups increase capillarity; make finer, softer suitable for application sport wears. The changes sorption proper...
Cannabis sativa L. is an important herbaceous species originating from Central Asia, which has been used in folk medicine and as a source of textile fiber since the dawn of times. This fast-growing plant has recently seen a resurgence of interest because of its multi-purpose applications: it is indeed a treasure trove of phytochemicals and a rich source of both cellulosic and woody fibers. Equa...
Respiratory symptoms and abnormalities of lung function were studied in 84 female and 27 male hemp workers employed in two textile mills (A and B) processing soft hemp (C sativa). In mill A 46 women and 27 men were investigated and 38 female workers were studied in mill B. Forty nine women and 30 men from a non-dusty industry served as controls. A significantly higher prevalence of almost all c...
A new class of biobased composites with tailorable mechanical properties made natural fibers, polylactic acid, and ferulic acid derivatives (FAD) is studied. FAD was used to develop elastomeric like improved elongation at break highly reversible deformation upon elongation. Composites were prepared using raw enzymatically treated hemp fibers. The fibers defibrillated due the enzymatic treatment...
Hemp is dual purpose crop, where fibers and seeds have found its place in textile food industry due to strong fiber nutrition content seed. The cultivation of hemp a new venture India farmers get income by both hence, optimizing spacing nutrient management harness maximum yield seed can double the farmers. present investigation on economics revealed that the, gross returns (Rs. 5,74,000/ ha) we...
Introduction:Cannabis sativa (hemp) seeds are popular for their high nutrient content, and strict regulations are in place to limit the amount of potentially harmful phytocannabinoids, especially Δ9-tetrahydrocannabinol (Δ9-THC). In Canada, this limit is 10 μg of Δ9-THC per gram of hemp seeds (10 ppm), and other jurisdictions in the world follow similar guidelines. Materials and Methods: We inv...
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