760results about How to "Excellent flame retardant" patented technology

The invention relates to a preparation method for a wood-bamboo reinforced resin composite material based on high-pressure densification, and belongs to the field of composite materials and artificialboards. The preparation method for the wood-bamboo reinforced resin composite material based on the high-pressure densification comprises the steps that lignin and hemicellulose are partially removedfrom wood veneers, wood boards or bamboo sheets by a chemical reagent, the chemical reagent is removed by water, and the water is replaced by ethanol or acetone; the wood veneers, the wood boards orthe bamboo sheets with lignin and hemicelluloses removal are put into a mixed solution of a resin system or a resin solution and a flame retardant, a diluent and/or a toughening agent additive, or sequentially put into the resin system or the resin solution and the mixed solution of the additive, so that the resin and additive penetrate into cells and cell pores of the wood or the bamboo; and semi-finished products are assembled into blanks, and high-pressure densification and high-temperature curing are carried out to prepare the high-strength composite material. The preparation method for the wood-bamboo reinforced resin composite material based on the high-pressure densification overcomes the stress concentration problem caused by the pores and the like in an existing artificial board,and the prepared novel structural composite material has good mechanical properties and flame retardancy, so that the application of wood in the structural fields of airplanes, high-speed trains, buildings and the like are greatly promoted.

The invention discloses a natural color, flammable and antistatic polyolefin master batch, pertaining to the field of the preparation technology of master batches for the engineering plastic modification. The master batch comprises matrix resins, nano-silicate, coated red phosphorous agents, antistatic agents, polysiloxane silicone surface surfactants and boride charring agents. The weight percentages of the components are as follows: 5 percent to 20 percent of matrix resins, 3 percent to 5 percent of nano-silicate, 20 percent to 50 percent of coated red phosphorous agents, 10 percent to 20 percent of antistatic agents, 1 percent to 2 percent of polysiloxane silicone surface surfactants, and 10 percent to 15 percent of boride charring agents. The polyolefin is used as the matrix resins, and after a plurality of repeated tests and study the component percentages and technique of the flammable antistatic polyolefin master batch are reasonably determined, therefore the production of the master batch with three efficacies, namely, natural color, flammable and antistatic properties is realized; the problem of single color (black) of the flammable antistatic polyolefin master batch series can be solved and colorful plastic products can be prepared to enrich the environmental senses.

The invention discloses a vacuum induction furnace capable of smelting aluminum and aluminum alloy. The vacuum induction furnace comprises a furnace body erected at the top of a furnace frame, a liftable furnace bottom plate arranged at the bottom end of the furnace body and bearing a graphite crucible, an induction coil arranged in the furnace body, an air suction pipe arranged on the side wall of the furnace body, a charging pipe penetrating through a furnace cover, a stirring shaft penetrating through the furnace cover, a stirring frame arranged at the bottom of the stirring shaft, a through hole formed in the stirring shaft, an argon blowing pipe penetrating through the through hole and extending to the bottom of an inner cavity of the graphite crucible, an argon supply device connected with the argon blowing pipe, a trolley arranged under the furnace body and capable of bearing the furnace bottom plate, and a lifting driving mechanism used for driving the furnace bottom plate to rise and fall vertically. The graphite crucible of the vacuum induction furnace is borne by the liftable furnace bottom plate, thereby entering and going out of the furnace body conveniently. The furnace bottom plate and the graphite crucible can be transported by the trolley, and moving is convenient. The stirring mechanism can conduct stirring during smelting of the aluminum and the aluminum alloy, argon can be led into aluminum liquid during stirring, and a purification effect can be achieved.

The invention discloses combined polyether, a raw material composition, polyurethane foam as well as a preparation method and application thereof. The combined polyether comprises the following components in parts by weight: 100 parts of polyol, 1-4 parts of a surfactant, 0.3-1.3 parts of a chemical foaming agent, 1-3 parts of a catalyst, 15-30 parts of a flame retardant and 15-30 parts of a physical foaming agent, wherein polyol is a mixture of 40-60 parts of polyether polyol A, 20-40 parts of polyester polyol B and 10-20 parts of phthalic anhydride polyol. The foam has the advantages of excellent comprehensive property, low cost, a certain thermal insulation fire-retardant property and is simple in preparation method, safe to operate and wide in application range, high in construction and foam curing speed and short in time from mixing to foam molding curing ( only 10 minutes) and can be used in high-temperature, wind, cold and other 5-40 DEG C terrestrial environments.

The invention provides a collagen fiber stuffing product which comprises 50%-100% collagen fiber in the stuffing and its Process for preparing. The said stuffing is oakum stuffing mixed collagen fiber deliberating from animal hide with at least another textile fiber; or materials stuffing arise from teasing, bedding web and modeling. The stuffing product in the invention is provided with advantages of well puffy, well rebound, well warming, flameproof and sound absorbing which the current stuffing can not get because it uses collagen fiber as main stuffing. The stuffing produced in the process provided in the invention has no peculiar smell, without putrefaction, without mouldy, and can be used in practice. The product is low cost and settles the problem of leftover bits and pieces of industrial material, so it is environment friendly.

The invention belongs to the technical field of high molecular materials and particularly relates to a light diffusion technique. A light diffusion material is prepared by the step of with polycarbonate resin as a matrix material, matching a light diffusant, a composite antioxidant, a composite flame retardant and other auxiliary agents by virtue of a melt extrusion process. The light diffusion material at least comprises the following materials in parts by weight: 100 parts of polycarbonate resin, 2-10 parts of the light diffusant, 0.2-6 parts of light stabilizers, 0.3-9 parts of the composite antioxidant and 0.5-10 parts of the composite flame retardant. The light diffusion material has the advantages of good physical and mechanical properties, fire resistance, excellent ageing resistance, high light transmissivity and good light diffusion performance, thermal stability and manufacturability, and the failure time is remarkably prolonged, so that the service life is effectively prolonged; the light diffusion material is suitable for the machining forming of lamp products of lamp tubes and the like and particularly suitable for thin-wall abnormal-shaped lamp tubes of which the wall thickness are less than 3mm.

The invention discloses a heat-resistant halogen-free flame-retardant polylactic acid multi-element composite material and a preparation method thereof. The composite material is prepared from the following raw materials: modified polylactic resin, aromatic polycarbonate resin, aliphatic polyster resin, a cross-linking agent, a halogen-free flame retardant, white oil, a dispersing agent, an antioxygen, and a processing aid. The preparation method comprises the following steps: a, drying the modified polylactic resin; b, uniformly mixing the dried modified polylactic resin and the white oil; c, uniformly mixing the cross-linking agent and the dispersing agent; d, continuously mixing the halogen-free flame retardant, the antioxygen, the processing aid and the mixed materials in step b and step c; and e, putting the mixed material in step d into a twin-screw extruder, and performing melt extrusion for granulation. The invention provides a composite material having the advantages of heat resistance, flame retardancy and good impact resistance, and a method for preparing the composite material, which has the advantages of simple production process, convenient operation and low cost.

The invention provides a macromolecular flame-retardant elastomer environment-friendly material and a preparation method thereof. The macromolecular flame-retardant elastomer environment-friendly material consists of thermoplastic styrene elastomer, polypropylene, polyethylene octene co-elastomer, a phosphorus nitrogen series composite flame retardant, a flame-retardant synergist, a compatilizer, white oil, an antioxidant and a coloring agent. The preparation method comprises the following steps of: mixing the raw materials in a ratio, extruding, drawing, granulating, and thus obtaining the material. The material has good physical property, and is suitable for making low-voltage wires such as electronic wires, earphone wires, audio wires, universal serial bus (USB) wires, computer flat cables and signal wires on the premise that good flame-retardant performance is ensured.

Provided is a process for preparing a plant fiber composite wall plate, belonging to wall material field. The invention resolves the shortages that the raw material of the existing architectural wall material is large in consumption, the manufacture cost is high and the distribution of the raw material is non-uniform. The process steps of the invention are that crop straw is cleaned and cut into pieces and is ground by a fiber re-chipper, and then is dried after dust and big lump material are screened. The prepared raw material is sent into a glue blend machine and is added with adhesive agent of 10-16%. After being uniformly stirred, the raw material and the added adhesive agent are taken out, added with fire retarding agent and paved, and then are cut in standard size after being pre-pressed, hot-press-molded and cooled. The plate in standard size is combined with polystyrene plates via different layers and thicknesses, the surfaces thereof are stuck with melamine fireproof plates, and then the plant fiber composite wall plate is formed via the combination. The product obtained by the process has the advantages of low density, light weight, perfect insulation, simple technology, large raw material source, low manufacture cost, waste utilization and environment protection. The invention can be used to produce building separating walls, framed wood structural buildings, mobile movable dwellings, and buildings in tourist spots and the like.

The invention relates to a steel face type composite wind pipe and a manufacturing method thereof, which relates to a wind pipe, in particular to a steel face type composite wind pipe used for building ventilation and an air-conditioning system, and the manufacturing method thereof. The invention provides the steel face type composite wind pipe and the manufacturing method thereof that combine the advantages of the traditional galvanized iron sheet wind pipe and the composite wind pipe, not only have an anti-collision external surface layer, but also have an internal heat insulating layer with good heat preservation effect. The composite wind pipe is provided with a steel face type surface layer, an intermediate foam heat insulating layer and an internal protecting layer which are all bonded by glue. The manufacturing method comprises the following steps: first, a steel face type composite wind pipe plate is prepared, treated with pipe section division and cutting according to the requirements of the size specification, then bonded for molding after pipe section division and cutting, and connected, sealed and blocked.

The invention relates to the technical field of cable processing, and particularly provides a cable which comprises multiple insulating wire core groups. A wrapping strap is arranged on the periphery of the insulating wire core groups, a flame-retardant layer, a shielding layer, a lining and an outer jacket are sequentially are outside the wrapping strap, each insulating wire core group is formed by winding multiple insulating wire cores, each insulating wire core is composed of a conductor, an insulating layer and a waterstop strap, each insulating layer and the corresponding waterstop strap wrap the outside of the corresponding conductor in an extruded manner, and fillers are arranged in gaps among the insulating wire cores. The cable is good in comprehensive performance, resistant to flame, wear, water, high temperature, oil and tension and high in flexibility. A production process provided is simple to manufacture and convenient to operate, production efficiency is improved for enterprises, and production cost is lowered.

The invention discloses a multifunctional super-hydrophobic textile finishing agent, and a preparation method and applications thereof. The preparation method comprises following steps: a precursor of an oxide sol and a graphite oxide aqueous dispersion are dispersed in deionized water, an anionic surfactant is added, a catalyst is added for hydrolysis and condensation reaction after uniform dispersion so as to obtain a mixed reaction system, and the mixed reaction system is heated to 30 to 50 DEG C for 3 to 12h of reaction so as to obtain a hydrosol; a functional agent is added into the hydrosol so as to obtain the multifunctional super-hydrophobic textile finishing agent. The multifunctional super-hydrophobic textile finishing agent is safe, is friendly to the environment, is excellent in effect, is used for super hydrophobic and multifunctional finishing of textile, is capable of providing textile with six functions including super-hydrophobic property, flame resistance, antibacterial property, stain resistance, ultraviolet resistance, and skin protection performance, is capable of eliminating adverse effect of the plurality of functions, improving the synergistic effect; the preparation method is simple and convenient, is easy to control, and is suitable for large scale production.

The invention relates to a flexible solar power generation cell which consists of a plurality of thin film cell units, a flexible substrate, a connecting circuit, a positive electrode and a negative electrode of the cell and a transparent protective film. The thin film cell units are grown on the flexible substrate by the methods of magnetron sputtering and chemical vapor deposition, produced by laser scribing and arranged like an array, the thin film cell units are connected in parallel and connected on the positive electrode and the negative electrode of the cell, and the transparent protective film is bonded on the surface of the solar power generation cell by heating. The thin film cell units consist of a plurality of thin film cell subunits, the structure of each subunit consists of the flexible substrate, a lower electrode, a solar power generation electrode, an upper electrode and the transparent protective film sequentially, and the upper electrodes and the lower electrodes of the adjacent subunits are series-connected by a printed circuit for constituting the thin film cell units. Gaps between the solar cell units and the thin film cell subunits are filled by protective insulating paint. The flexible solar power generation cell is significantly characterized by light weight, ability of winding and convenient carry and installation, and the structure with the combined series connection and the parallel connection can not only ensure a certain output voltage, but also not affect the overall situation when one part is damaged and prolong the service life of the cell.

The invention discloses a low-carbon environment-friendly cellular light composite wallboard, comprising cellular paperboard inner core material, a waterproof heat-resisting adhesive layer, environment-friendly panels and a reinforced edge banding connecting and fastening strip. A cellular paperboard with a stable hexagon structure is used as the inner core material and has good sound insulation, heat-shielding performance and loading capacity. The waterproof heat-resisting adhesive layer firmly adheres an upper environment-friendly panel, a middle environment-friendly panel and a lower environment-friendly panel of the cellular paperboard inner core material together so as to form two double-board sound insulation structures, and the double-board sound insulation structures are also reliable heat insulation structures. The environment-friendly panels have the functions of sound insulation, heat insulation, antiflaming and appearance keeping and protecting and can improve the bearing capacity and durability of the cellular light composite wallboard. The reinforced edge banding connecting and fastening strip can exert sealing, moistureproof and supporting protective effects on the four sides of a single composite wallboard and also can exert connection function in wall surface combination and assembly during the installation of the composite wallboards. The prepared cellular light composite wallboard has low density and light weight and has the advantages of good sound insulating, heat insulating, waterproof, antiflamming performances and good durability. By applying the environment-friendly cellular light composite wallboard, the running time of a heating and ventilating equipment system can be reduced, thus consumption of energy source and discharge of carbon dioxide gas can be reduced, and a low-carbon environment-friendly pleasant environment is created.

The invention discloses an industrial protection non-woven material and a manufacturing method of the industrial protection non-woven material. The industrial protection non-woven material comprises a PP spunbond non-woven fabric layer, an ES-mixed non-woven fabric layer and a PP melt-blown non-woven fabric layer sandwiched between the PP spunbond non-woven fabric layer and the ES-mixed non-woven fabric layer. Fire retardant mixtures of a first component are added to the PP spunbond non-woven fabric layer, and fire retardants of second components of different types are added to the PP melt-blown non-woven fabric layer. Mixed fibers of ES fibers, polyester fibers and viscose fibers are combed into a net to form the ES-mixed non-woven fabric layer. The industrial protection non-woven material has the moisture percentage similar to the moisture percentage of a human body, good gas permeability and soft and fluffy hand feelings, is comfortable to wear, has high tension stress and morphological stability in all directions, protects the structure of the melt-blown non-woven fabric layer and has the good inflaming retarding characteristic and the environment protection effect, and a guarantee is provided for the protection performance of the industrial protection non-woven material.

A heat-resistant shielded power cable for nuclear power stations comprises a combined cable core, three power cable cores are stranded to form the combined cable core, filler is arranged on the combined cable core, the periphery of the filler is sequentially wrapped by an isolating layer, a composite shielding layer, a flame-retardant tape, an oxygen barrier and an outer sheath, the filler is a low-smoke halogen-free flame-retardant polyolefin material, a polyester film is lapped to form the isolating layer, tinned copper wires are woven and lapped to form the inner layer of the composite shielding layer, an aluminium-plastic composite tape is overlapped to form the outer layer of the composite shielding layer, a glass fiber tape is lapped to form the flame-retardant tape, irradiation cross-linked low-smoke halogen-free flame-retardant polyethylene is extruded to form the wrapping oxygen barrier, and the outer sheath is made of ceramic fire-resistant silicon rubber; the three power cable cores respectively consist of a cable core conductor, an liner layer and an insulating layer which are arranged sequentially from the inside to the outside, wherein a synthetic mica tape is lappedto form the liner layer, and heat-resistant silicon rubber is extruded to form the insulating layer, and is then vulcanized. The heat-resistant shielded power cable has excellent heat resistance, shielding property and electric insulativity.