摘要:
The invention relates to a composite material comprising at least a plastic matrix in which a powder of vine shoots is incorporated.The invention also relates to a method of obtaining a composite material.The invention also relates to an agricultural accessory (1, 10) intended for tying in vine stock.
摘要:
A method for sorting and comprehensively utilizing municipal solid waste includes steps of: 1) feeding the municipal solid waste into a feeding tank through a feeding inlet, then outputting into a breaking device; 2) breaking refuse bags and large blocks by the breaking device; 3) transporting broken refuse into a two-stage roller screen for screening out dusts with a particle size of less than 3 mm, and hanging strips; and 4) transporting mixed refuse screened by the two-stage screen into a vibrating screen; screening oversize products by a heavy winnowing machine for separating inorganic blocks, large plastics and paper; transporting underflow products into a two-room multi-functional winnowing machine for dividing into heavy materials, light materials and medium materials. By effectively combining sorting devices, effective sorting and reutilization of mixed refuse are achieved. Thereafter, paper, fibers, plastics and kitchen organic refuse are respectively for producing refuse derived fuel, wood-plastic composite and fertilizer.
摘要:
Members including components of windows and doors are formed by a method that includes obtaining a biopolymer and a filler, feeding them into an extruder, controlling at least the temperature of the biopolymer and the filler within the extruder to promote the initiation of nucleation of the biopolymer, extruding the composite through a die of the extruder to form an extruded member and controlling at least the cooling rate of the extruded member after it leaves the die to promote crystallization of the biopolymer. Methods are disclosed for compounding and pelletizing as well as direct extrusion of the composite. In a preferred embodiment, the biopolymer is polylactic acid (PLA) and the filler is wood fiber. In addition, neat PLA formulations are also disclosed. Further, the heat distortion temperature and the hydrolysis resistance of these members are greatly increased through specific processing conditions and the addition of strategic quantities of additives.
摘要:
A moulding process and system for producing small wooden objects such as, for example, pipe heads or furniture handles from a moulding material formed of an aqueous suspension of wood dust. The moulding material is injection moulded into injection mould parts in which electrodes are placed for subjecting moulding cavities to a HF-heating field such that both a rapid curing of a heat setting glue agent in the aqueous wood dust mass and a rapid driving out of a major part of the water is realized. The moulding cavities include exhaust or release channels for steam resulting from the evaporation of the water of the moulding material and an arrangement is provided for maintaining the mould parts together in spite of the high steam pressure developed in the mould cavities.
摘要:
The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.
摘要:
An eco-wood formulation finds new uses as construction materials. A rigid polymer material sheet for use in building construction comprises a polymer mixture of ultrafine particles of polyvinylchloride (PVC) impact modifier, plant fiber, coupling agent, smoke suppressant, activated clay, lubricant, an activator, environmentally friendly flame retardant, heat stabilizers, odorless crosslinking agent, foaming agent, desmopressin agent. Alternatively, the rigid polymer material sheet is composed of: a polymer mixture of PVC, plasticizer, nitrile rubber, PCC, stearate, zinc oxide, retardant heat, heat stabilizers, crosslinking agent, vesicant; whereby said rigid polymer material sheet provides enhanced thermal resistance and sound attenuation properties for use in building construction, aviation and marine industries.
摘要:
The present invention relates to a board using crosslinked polylactic acid and a method for preparing same, and more specifically, to a board using the crosslinked polylactic acid which has superior processing properties during the preparation process and superior water-resistant properties after processing, by using a composition comprising the crosslinked polylactic acid and wood fiber, and to a method for preparing the same.
摘要:
A co injection manifold assembly for injecting two different materials into a common mold cavity includes a housing that defines a first passage, a second passage and an outlet. The first and second passages communicate with a bore having a valve member for controlling flow of the material through the outlet. A first temperature control element in thermal contact with the first passage and a second temperature control element are in thermal contact with the second passage. Each of the first and second temperature control elements are separately controllable to provide separate temperatures for each of the first and second passages. Separate temperatures in each of the first and second passages provide for the use of materials having dissimilar molten temperatures.
摘要:
A toilet seat assembly 10 includes a toilet seat 12 having a seat skin 14 defining the exterior surfaces thereof and a seat core 16 disposed within and surrounded by the seat skin 14 and a cover 18 having a cover skin 20 defining the exterior surfaces thereof and a cover core 22 disposed within and surrounded by the cover skin 20. The assembly is characterized by the cores 16, 22 each comprising a waste material. The waste material may be a single polymer wasted in the process of making other products. Alternatively or in combination therewith, combining a plurality of different materials (including different polymers) from different sources may be employed to formulate the waste material.
摘要:
A toilet seat assembly 10 includes a toilet seat 12 having a seat skin 14 defining the exterior surfaces thereof and a seat core 16 disposed within and surrounded by the seat skin 14 and a cover 18 having a cover skin 20 defining the exterior surfaces thereof and a cover core 22 disposed within and surrounded by the cover skin 20. The assembly is characterized by the cores 16, 22 each comprising a waste material. The waste material may be a single polymer wasted in the process of making other products. Alternatively or in combination therewith, combining a plurality of different materials (including different polymers) from different sources may be employed to formulate the waste material.