Abstract:
A method and system for the production of fibers for use in biocomposites is provided that includes the ability to use both retted and unretted straw, that keeps the molecular structure of the fibers intact by subjecting the fibers to minimal stress, that maximizes the fiber's aspect ratio, that maximizes the strength of the fibers, and that minimizes time and energy inputs, along with maintaining the fibers in good condition for bonding to the polymer(s) used with the fibers to form the biocomposite material. This consequently increases the functionality of the biocomposites produced (i.e. reinforcement, sound absorption, light weight, heat capacity, etc.), increasing their marketability. Additionally, as the disclosed method does not damage the fibers, oilseed flax straw, as well as all types of fibrous materials (i.e. fiber flax, banana, jute, industrial hemp, sisal, coir) etc., can be processed in bio composite materials.
Abstract:
According to one aspect of the present disclosure, a mechanism and method is provided to clean and remove or separate cellulose fibers from the source fibrous material without stressing and/or damaging the cellulose fibers. The mechanism includes an agitator that directs the washing fluid in a vertical direction into engagement with the fibrous material to effect maximum cleaning of the cellulose from the remainder of the fibrous material without damaging or stressing the cellulose, thereby providing cellulose that can enhance the strength and other beneficial characteristics of a biocomposite material formed using the cellulose.
Abstract:
A system and method is provided for drying for fibers or fibrous materials, such as flax, hemp, jute, sisal, banana and coir, among others by dehumidifying the fibers in a temperature and humidity-controlled environment. The dehumidification system does not detrimentally affect the fiber's properties (e.g., strength) by evenly drying the fibers and not subjecting the fibers to repeated high temperature environments, allowing the fibers to be used in more biocomposite applications, such as a reinforcement material. Also the dehumidification method reduces/prevents fiber discoloration, odor, and decomposition.
Abstract:
A method to treat fibrous materials for use in the formation of a biocomposite material that significantly reduces or eliminates the odors emitted from the fibrous materials is provided. In the method, the fibers or fibrous materials are initially treated to extract the raw fiber from the source plant material and the remove unwanted fractions of the fiber, such as the hemicellulose, lignin, and pectin, among others, leaving only the intact cellulose fibers. These cellulose fibers are then further processed in a second step to remove the odor from the cellulose fibers. The second step includes a combination of a second chemical treatment, dehumidification, and/or a cold plasma modification to render the cellulosic fibers odorless.
Abstract:
A method for coloring fibers or fibrous materials where the fibrous material is initially chemically pretreated in order to achieve natural/white color for the fibrous materials. Next the pretreated fibrous material, a polymer base, and the colorant concentrate(s) are combined under suitable conditions to form a biocomposite mixture. The chemical pretreatment of the fibrous material prevents damage from being done to the fibrous material, such that the fibrous material retains its strength enhancing properties when combined with the polymer to form the biocomposite mixture. Additionally, the chemical pretreatment enables the fibrous material to chemically and mechanically bond with the colorant when combined into the biocomposite mixture.
Abstract:
A system and method for predicting the formulation and processing method and processing parameters for the formation of a biocomposite material is provided. The system and method utilizes the desired properties for the biocomposite material and utilizes these properties m a prediction system to determine the particular formulation, processing method and processing parameters for the formation of a biocomposite material having the desired characteristics. This information is output from the prediction system to a biocomposite material manufacturing system in order to form the biocomposite material and an end product formed therefrom that has the desired characteristics input into the prediction system.
Abstract:
A method to provide enhanced electrical conductivity to the biocomposite material in which fibrous materials are initially combined and mixed with a polymer base. As the fibrous material and polymer are mixed or compounded, molecular bonds form between the fibrous material and the polymer. At this stage of the process the conductive material and/or particles are added to the mixture because the molecular bonds have formed in the biocomposite material, and the conductive particles cannot interfere with the bonding between the fibrous material and the polymer. The conductive particles are encapsulated by the biocomposite material such that the biocomposite mixture is formed with enhanced electrical conductivity properties, while not detrimentally affecting any of the other enhanced properties of the biocomposite material based on the molecular bonding between the fibrous material and the polymer.
Abstract:
The present invention is directed to plant fiber-reinforced thermoplastic compositions and a method for reinforcing thermoplastic resins. The present invention provides a use for the cellulose portion of a plant material, which is the portion left over after processing the selected plant materials to separate the hemi-cellulose and lignin from the cellulose.
Abstract:
According to one aspect of the present disclosure, a mechanism and method is provided to clean and remove or separate cellulose fibers from the source fibrous material without stressing and/or damaging the cellulose fibers. The mechanism includes an agitator that directs the washing fluid in a vertical direction into engagement with the fibrous material to effect maximum cleaning of the cellulose from the remainder of the fibrous material without damaging or stressing the cellulose, thereby providing cellulose that can enhance the strength and other beneficial characteristics of a biocomposite material formed using the cellulose.
Abstract:
The present invention is directed to plant fiber-reinforced thermoplastic compositions and a method for reinforcing thermoplastic resins. The present invention provides a use for the cellulose portion of a plant material, which is the portion left over after processing the selected plant materials to separate the hemi-cellulose and lignin from the cellulose.