4252results about How to "Improve fire resistance" patented technology

A fireproof insulating foamed cementitious composition with thermal energy storage capacity is provided for use in producing wall insulation boards, fireproof claddings for steel structures, inner cores of fire resistant wall or door panels, and the like. The composition demonstrates improved energy efficiency in which phase change materials, such as microencapsulates, are used in conjunction with a cementitious mixture of calcined gypsum and hydraulic cement, lightweight aggregates, a polymer latex, and a foaming solution to create stable air bubbles inside the cementitious matrix. The calcined gypsum and the hydraulic cement are present in a weight ratio range from about 1:3 to about 3:1. The composition may further include reinforced fibers, surfactants, inorganic flame retardants, and other additives. The presence of the phase change material not only increases energy efficiency of the cured cementitious foam material, but also improves compatibility between calcined gypsum and cement during slurry mixing and hardening.

An improved, fire-resistant, set gypsum composition contains set calcium sulfate dihydrate as the major ingredient and a reinforcing ingredient of resilient, flexible, boron-free glass fibers. Continuous filament forming glass compositions with a softening point preferably greater than about 1580° F. (about 860° C.) and more preferably greater than about 1681° F. (about 916° C.) may be used. The fibers typically are distributed as their separate constituent individual glass filaments uniformly throughout the set calcium sulfate dihydrate.

Provided is a waterborne ultra-thin steel structure fire retardant coating and a preparation method thereof. The raw material ratio of the coating includes 15-50% by weight of polymer latex, 15-30% by weight of ammonium polyphosphate, 5-15% by weight of pentaerythritol, 3-10% by weight of cyanurtriamide, 5-12% by weight of titanium dioxide, 2-13% inorganic filler, 0-5% by weight of expansiveness graphite, 1-10% by weight of plasticizer, 0.4-1.5% by weight of wetting dispersant, 0.2-0.5% by weight of defoamer, 1-6% by weight of coalescing agents and 5-15% by weight of water, and total raw material ratio is 100%. A high-speed dispersion method or a grinding dispersion method is adopted in preparation of the coating. A coating layer of the fire retardant coating can form a carbonization layer which is good in foaming effect, small and uniform in air holes and high in expansion times when in heating. The final fire retardant performance of the coating is far higher than technical requirements of a national standard. The waterborne ultra-thin steel structure fire retardant coating is a waterborne coating product, is non-poisonous and odorless and environment-friendly, and can be coated in a mode of brushing or spraying or roller coating.

There is provided a sheet material having a walking surface with high slip resistance. The sheet material has a flexible structural layer laminated to a mesh layer which has interconnected reinforced strands and protruding nodes to impart a high coefficient of friction. The high coefficient of friction of the sheet material provides a roofing underlayment which is safe to walk upon in dry, wet or dusty conditions, and on steeply sloped surfaces. The sheet material may also be used as an industrial wrapping material or a fabric.

The present invention provides methods of producing manufactured aggregates and other compositions from a particulate PCM slurry, suspension or emulsion by combining a cementitious binder and a adsorbent and/or absorbent with the PCM slurry. The PCM-containing composition can be produced in an agglomeration process. The ingredients can also be mixed to form a viscous mass which can be extruded or otherwise formed to produce useful products.

A method of using nanostructured chemicals as alloying agents for the reinforcement of flouropolymer microstructures, including polymer coils, domains, chains, and segments, at the molecular level. Because of their tailorable compatibility with fluorinated polymers, nanostructured chemicals can be readily and selectively incorporated into polymers by direct blending processes. Properties most favorably improved are time dependent mechanical and thermal properties such as heat distortion, creep, compression set, shrinkage, modulus, hardness and abrasion resistance. In addition to mechanical properties, other physical properties are favorably improved, including lower thermal conductivity, fire resistance, and improved oxygen permeability. These improved properties may be useful in a number of applications, including space-survivable materials and creep resistant seals and gaskets. Improved surface properties may be useful for applications such as anti-icing or non-wetting surfaces or as low friction surfaces.

The invention provides a carbon nanofiber aerogel as well as a preparation method and the application of the carbon nanofiber aerogel. The method comprises the following steps: a), obtaining neutral bacterial cellulose blocks by soaking bacterial cellulose blocks into deionized water for deacidification; b), using liquid nitrogen to refrigerate the neutral bacterial cellulose blocks and drying in a freeze dryer to obtain a bacterial cellulose aerogel; and c), warming the bacterial cellulose aerogel and performing high-temperature pyrolysis to obtain the carbon nanofiber aerogel. The preparation method for the carbon nanofiber aerogel, provided by the invention, is simple, feasible and good in repeatability, and the raw material is cheap and easy to obtain, so that large-scale preparation can be realized easily; the carbon nanofiber aerogel prepared by the invention has good lipophilicity and facilitates adsorbing raw oil and chemical reagent during raw oil pollution and chemical reagent leakage; and in addition, as the carbon nanofiber aerogel has electrical conductivity and elasticity, the carbon nanofiber aerogel can be further used for preparing a pressure sensor.

The invention relates to a lightweight energy-saving insulating concrete, belonging to building materials. The invention comprises the master batches and accessories in accordance with the following parts by weight: master batches: 30-70 parts of cementing materials, 25-60 parts of fillers, 5-10 parts of strength activators, and accessories: 1-3 parts of waterproof agents, 2.0-3.0 parts of bleeding agents, 2.0-5.0 parts of suspending agents, 0.1-0.5 part of foam stabilizer, 38-60 parts of honeycomb agents, 0.5-1.5 parts of rusty retardant agents, 0.02-10 parts of reinforcing agents, 1.2-4.2 parts of early strength agents and expanding agents and 0.6-1.4 parts of acid and alkali resistant fibers. The concrete has the advantages of high early tensile and compressive strength, no decrease and crack of later strength and simple manufacturing process. According to the requirement of the building structure, the technical target of the concrete can be realized by regulating the mixing proportion. The concrete can be used for manufacturing various products at normal temperature and is widely applied to insulating and self-waterproof building engineering.

The invention relates to a compound of a thermoplastic synthetic material and a strengthening components whereby the technical problem of indicating a high-grade compound work material at low production cost, in particular for outdoor application has been solved in that the thermoplastic synthetic material is a synthetic polyester, preferably a polyethylene terephthalate (PET), and the strengthening components is an organic filler, preferably fine-particle wood or wood fibers. The invention also relates to the production of structural parts from the component as well as the structural parts themselves.

The present disclosure relates to fire-resistant systems, methods, and apparatus. In one embodiment, a fire-resistant system includes a fire-resistant panel and a protected material coupled to the fire-resistant panel. The fire-resistant panel includes a passive layer and a back layer. The passive layer comprises a phyllosilicate material. The back layer comprises an inorganic material and may be coupled to the passive layer. Optionally, the fire-resistant panel may include a secondary layer comprising a functional material, where the functional material comprises one of a phase change material or an endothermic material.

The invention discloses a water-based ultra-thin fire-retardant coating for steel structures. The fire-retardant coating comprises components as follows: a binder emulsion, an intumescent flame retardant system, filler, deionized water and additives, wherein the additives comprise a dispersing agent, an antifoaming agent, a mold inhibitor, an anti-flash-rust agent, a coalescing agent, a leveling agent and a thickener; the intumescent flame retardant system comprises a dehydration catalyst, a carbonizing agent and a foaming agent. The invention further designs a preparation method of the water-based ultra-thin fire-retardant coating for the steel structures. The components are mixed sequentially to be prepared into the water-based ultra-thin fire-retardant coating for the steel structures in a vertical sand mill and a dispersing tank. The prepared coating is large in adhesive force, high in hardness, good in fireproof property, good in anti-scratch performance and excellent in weather resistance and water resistance, the surface layer of the coating is fine and smooth, the decoration performance is improved significantly, and the preparation method is low in energy consumption and has the advantages that the harm to human bodies and the pollution to the environment during preparation are small and the like.

The present invention relates to a water thin expanding steel structure fire-resisting coating material and its preparation method. Said ivnention adopts a self-synthesized high melting temp. acrylate emulsion as main film-forming substance, adding proper quantity of chlorometaemulsion to raise fibre resistance of film-forming substance self-body, and on the basis of convertional ammonium polyphosphate fire-resistant adjuvant an expandable graphite as foaming material is added so as to form the invented fire-resisting coating material. Said invention can greatly raise forming rate to coating layer, the thickness of foamed layer can be up to 30-50 times that of original coating layer, and its fire-resisting limit can be up to 75 min (thickness of coating layer is 3 mm).

The invention discloses low-density composite foaming cement and a preparation method thereof, relating to a light building material. The foaming cement is prepared by adopting a normal-temperature foaming technology, and comprises the following components in parts by weight: 100 parts of cement, 10-50 parts of active admixture, 1-5 parts of redispersible emulsion powder, 1-4 parts of water repellent, 0.5-1.5 parts of cellulose ether, 0.3-0.7 parts of reinforced fiber, 0.2-0.5 parts of foam stabilizer, 3-8 parts of foaming agent and 50-80 parts of water. The method comprises the following preparation steps of: proportionally mixing and stirring the cement, active admixture, redispersible emulsion powder, water repellent, cellulose ether, reinforced fiber, foam stabilizer, and water into cement slurry; adding the foaming agent; and stirring, molding by casting and naturally curing. The foaming cement disclosed by the invention has the advantages of low volume weight, small heat conducting coefficient, small shrinkage ratio, high intensity, integration of heat preservation, sound insulation, fire prevention and low carbon, simple and convenient production preparation process and easiness in controlling.

The invention provides carpet fibers prepared from a blend of polymeric components, said fiber exhibiting improved properties, such as improved spinnability and improved fire resistance. The carpet fibers particularly comprise a majority of polytrimethylene terephthalate (PTT) and a minority of polyethylene terephthalate (PET). The invention further provides yarns and carpets prepared from the inventive fibers, said yarns and carpets likewise exhibiting improved properties. The invention also provides methods of improving various physical properties (such as fire resistance, spinnability, and elongation) of a polymeric composition.

The invention provides an expanded type aqueous facing fireproof coating, which comprises the following components by weight: 10% to 30% of styrene-acrylic emulsion, 20% to 30% of ammonium polyphosphate, 10% to 20% of pentaerythritol, 15% to 25% of melamine, 5% to 10% of titanium dioxide, 2% to 8% of aluminum hydroxide, 1% to 5% of zinc borate, 1% to 2% of chlorinated paraffin, 0.05% to 0.2% of antiseptic, 0.1% to 0.2% of dispersing agent, 0.3% to 1.0% of film-forming auxiliary, 0.1% to 0.5% of cellulose ether, 0.5% to 2.0% of hydroxy silicone oil and the balance of water. The expanded type aqueous facing fireproof coating, provided by the invention, has the advantages of excellent water resistance and salt mist resistance, excellent adhesion and flexibility, good storage stability, no layering, no fineness change and no packing phenomenon, excellent waterproof resistance, smooth and fine coating film, no toxicity and pollution, and environment-friendliness.

The invention provides novel wood-like composite materials and methods for preparation thereof. The wood-like composite materials can be readily produced from widely available, low cost precursor materials by a production process that involves casting in a mold that is suitable for large-scale production. The precursor materials include calcium silicate, for example, wollastonite, and particulate filler materials which comprise silicon dioxide-rich materials such as quartz, mica, feldspar, sand and glass. Additives can include calcium carbonate-rich and magnesium carbonate-rich materials. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as colorants such as particles of colored materials, such as, and pigments (e.g., black iron oxide, cobalt oxide and chromium oxide). These wood-like composite materials exhibit visual patterns unique to wood as well as display compressive strength, flexural strength and water absorption superior to that of wood.

The present invention is fireproof building board of ceramic fiber, and belongs to the field of ceramic fiber material technology. The fireproof building board of ceramic fiber is produced with aluminum silicate fiber or light refractory stuffing as base material, and through adding one or several kinds of enhancing fiber; adding proper amount of organic binding agent or inorganic binding agent, stuffing and additive; pulping; forming; drying and other steps. The fireproof building board of ceramic fiber is used as the heat insulating board in building, and has high fire rating, high fire resistance, high heat isolating performance, high strength, low density and low cost.

The invention provides a ceramifying polyolefin fireproof cable material. The material is prepared by the following components in parts by weight: 40-100 parts of polyolefin; 1-30 parts of a compatilizer; 350-450 parts of ceramifying powder; 20-200 parts of a flux; 20-90 parts of a fire retardant; 2-20 parts of a lubricant; and 1-10 parts of an anti-oxidant. Polyolefin is selected from one or more of an ethane-vinyl acetate copolymer, polypropylene, polystyrene, polyethylene and a polyolefin elastomer. The ceramifying powder is selected from one or more of pottery clay, powdered steatile, mica powder, pyrophillite, ascharite, datolite, calcite, limestone, spodumene and clay. The ceramifying polyolefin fireproof cable material has the advantages of good fireproof performance, environmental protection, low cost, easy processing and good application prospect.

The invention discloses high-performance building structure refractory steel plates and a manufacturing method thereof. The high-performance building structure refractory steel plate comprises the following chemical components in percentage by weight: 0.02 to 0.12 percent of C, 0.05 to 0.50 percent of Si, 0.08 to 1.50 percent of Mn, 0.010 to 0.050 percent of Nb, 0.010 to 0.040 percent of Ti, 0.010 to 0.050 percent of Als, 0.20 to 0.60 percent of Cr, 0.20 to 0.40 percent of Mo, less than or equal to 0.015 percent of P, less than or equal to 0.005 percent of S, less than or equal to 0.0040 percent of N, less than or equal to 0.0020 percent of O and the balance of Fe and inevitable impurities. The production process of the high-performance building structure refractory steel plates is characterized in that: the steel blank heating temperature is 1,100 to 1,250 DEG C; the heating time is 60 to 110s/cm; two-stage controlled rolling is adopted; the final rolling temperature is kept between 800 and 900 DEG C; cooling is started 30 to 120 seconds later after final rolling; the final cooling temperature is kept between 500 and 750 DEG C; the steel plates are stacked quickly, cooled slowly and kept at a constant temperature; the stacking temperature is kept between 650 and 300 DEG C; and the temperature is kept for 10 to 24 hours. The plates have the characteristics of simple chemical components, low cost, and high refractability.

A highly fire resistant construction board is produced by embedding a sheet of expanded metal net in a building board made from a water settable inorganic binder. In a preferred embodiment, the wallboard is made from a combination of gypsum, cement, and a particulate mineral filler such as perlite or vermiculite, and contains an embedded layer of expanded metal net made from a magnesium alloy.