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787 results about "Waterproofing" patented technology

Waterproofing is the process of making an object or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths.

Super-hydrophobic conductive fiber, fabric and preparing method and use

InactiveCN101070672AHigh self-cleaning effectControl conductivityFibre treatmentFiberAviation
This invention relates to an ultra sparse water conductive fiber. The superficial gable is the fiber of electric conduction polymer which is composed by 20-1000 nanometers thick, diameter of 400-900 nanometer electric conduction high polymer. This fiber is for using electric conduction polymer chemical oxidation position polymerization method in fiber surface gable electric conduction polymer level. This invention also relates to a ultra sparse water electric conduction fabric, it for in the superficial gable a fabris composed of 20-1000 nanometers thick, by the diameter was the electric conduction polymer level fabric which 400-900 nanometer electric conduction high polymer particle. This fabric for use electric conduction polymer chemical oxidation home position polymerization method in fabric surface gable electric conduction polymer level. This invention's fiber or the fabric surface resistance for 200 omega /cm2-300M omega /cm2, the angel contact with water is bigger than 160degree, the roll position is smaller than 14degree. It displays highly clean ability, has the electromagnetic screen, the anti-static electricity, the stealth, the waterproofing, the dustproof function, specially for war industry, astronautics aviation, factory and mining enterprise, health and so on.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Preparation method of organic silicon microcapsule powder waterproof agent

The invention belongs to the fields of waterproofing of buildings and solid powdering and relates to a preparation method of an organic silicon microcapsule powder waterproof agent. The preparation method comprises the following steps: preparing water-soluble high polymer wall material into a water solution; mixing a superfine inorganic mineral filler with an organic silicon high-efficient waterproof agent according to a certain proportion for forming homogeneous dispersion; adding a polymer solution and other auxiliaries into the dispersion and dispersing for forming a homogeneous, stable and dry dispersion liquid; performing spray-drying on the uniform and stable dispersion liquid for getting organic silicon waterproof agent microcapsule powder with a certain fineness; and collecting a product, sealing and preserving. The adopted water-soluble polymer film-forming wall material, the inorganic filler and the organic silicon high-efficient waterproof core material have good performances and have no adverse effects on the performances of basic materials, the adopted equipment is easy to operate and the prepared organic silicon powder is white; the organic silicon microcapsule powder waterproof agent has excellent water repellency and water vapor permeability; the organic silicon microcapsule powder waterproof agent can be re-dispersed and has excellent workability with water; and the solvent-free design is healthy and environmentally-friendly.
Owner:TONGJI UNIV

High-performance thermosetting epoxy resin adhesive for roads and bridges and preparation method thereof

The invention provides a high-performance thermosetting epoxy resin adhesive for roads and bridges. The adhesive comprises a component A and a component B, wherein, the component A comprises the following components in parts by mass: 100 parts of epoxy resin, 25 to 33 parts of flexibilizer, and 5 to 10 parts of diluent; the component B comprises the following components in parts by mass: 80 to 120 parts of curing agent, 5 to 10 parts of accelerant, 0.5 to 2 parts of coupling agent, 1 to 10 parts of reinforcing agent, and 0.2 to 0.5 part of antifoaming agent; and the ratio of the component A to the component B is 100:100-100:120. According to the adhesive, a flexible long-chain aliphatic amine serving as the curing agent has a curing reaction with the epoxy resin to form a solid crosslinking structure, so that the epoxy resin adhesive is high in adhesion capability and water resistance; The toughness of the epoxy asphalt adhesive is improved by adopting the soybean oil-based polyurethane to be adapted to the flexibility of a steel plate, and the soybean oil-based polyurethane containing massive hydroxyl has good compatibility with the epoxy resin. The adhesive is applicable to adhesion and waterproofing of steel bridge decks, viaducts, cement concrete bridge decks, tunnels, expressways and other decks. The invention discloses a preparation method of the high-performance thermosetting epoxy resin adhesive.
Owner:NANJING UNIV

High-performance thermosetting epoxy asphalt binder and preparation method thereof

The invention discloses a high-performance thermosetting epoxy asphalt binder, comprising a part A component and a part B compound, wherein the part A component comprises 100 weight parts of epoxy resin, 20-35 weight parts of flexibilizer, 0.5-2 weight parts of promoter, and 8-20 weight parts of diluent; the part B component comprises 300-350 weight parts of asphalt, 150-160 weight parts of flexible curing agent, 10-15 weight parts of promoter, 2-5 weight parts of compatilizer, and 100 weight parts of diluent; and the ratio of the part A component to the part B component is 100:350-440. According to the invention, by using flexible long-chain fatty acid anhydride as the curing agent and carrying out solidification reaction on the curing agent with the epoxy resin, a stereo cross-linked structure is formed, and the bonding capability and water resistance of asphalt are increased; by using liquid rubber as the flexibilizer, the flexibility of the epoxy asphalt binder is raised to adapt to the flexibility of a steel plate, and by prereacting the flexibilizer with epoxy resin firstly for grafting, the compatibility between the epoxy asphalt binder and asphalt is raised. The epoxy asphalt binder is suitable for bonding and waterproofing of steel bridge floor, cement concrete bridge floor, tunnel, highway and other pavements. The invention also discloses a preparation method of the epoxy asphalt binder.
Owner:NANJING UNIV

Novel wood plastic anticorrosive wallboard and production method thereof

InactiveCN102234439AImprove antibacterial and antiseptic effectGood shear mixing effectCovering/liningsFireproofingAntibacterial agent
The invention relates to a novel wood plastic anticorrosive wallboard for outdoor wall decorations and a production method thereof. The wood plastic anticorrosive wallboard consists of PE or PP plastic, wood powder or bamboo powder, calcium carbonate, coupling agent, lubricant, antiaging agent, antibacterial agent and colouring agent. The production method comprises the following steps that: the raw materials are subject to mixing, granulation and extrusion molding to obtain a baseplate, and the baseplate is subject to cooling, cutting, surface grinding, and embossing to obtain a product. The side of the baseplate is a slot structure, and the water absorption of the baseplate in 24h is 0.2%. The wallboard used in the field of outdoor decorations has the advantages of graceful appearance, lifelike pattern, reasonable structural design, being easy to install, fireproofing, waterproofing, insect preventing, sun protection, aging resistance, no formaldehyde, good sound-absorbing effect, good antibacterial and anticorrosive effects and the like, and being 100% recyclable. Compared with other wallboard decorative materials and production technologies existed in the prior art, the novel wood plastic anticorrosive wallboard disclosed in the invention has reasonable structure, and graceful and beautiful appearance, and the production method is advanced and scientific, with high production efficiency, and good performance of the produced products.
Owner:HUANGSHAN MEISEN NEW MATERIAL TECH

Fabricated tunnel support system and construction method thereof

The invention discloses a fabricated tunnel support system and a construction method thereof. The fabricated tunnel support system comprises main structures such as an advanced support, a flexible support and a rigid support, and all structural layers are constructed sequentially according to construction processes. The advanced support is formed by reinforcing surrounding rocks by advanced small pipe grouting, the flexible support is formed by splicing prefabricated foam concrete blocks through bolts, joints among all the prefabricated foam concrete blocks are subjected to sealed waterproofing through elastic rubber gaskets, the rigid support comprises concrete-filled steel tube arches and prefabricated reinforced concrete segments, the concrete-filled steel tube arches are vertically arranged at intervals along the circumferential direction of a tunnel, the positions among the concrete-filled steel tube arches are filled with the prefabricated reinforced concrete segments, every two adjacent concrete-filled steel tube arches are connected through longitudinal rebars, steel tubes are circumferentially connected through sleeves, and the prefabricated reinforced concrete segments are connected through bolts. The fabricated tunnel support system is simple in process, rapid in construction progress, high in quality and good in waterproof effect while tunnel structural safety is guaranteed effectively.
Owner:CHANGAN UNIV

Steel-FRP (fiber reinforced plastic) composite corrugated plate tunnel supporting method

The invention discloses a steel-FRP (fiber reinforced plastic) composite corrugated plate tunnel supporting method and belongs to the technical field of research and development of composites and novel structures in the tunnel engineering field. The method comprises procedures as follows: prefabrication of a corrugated plate, reinforcement of surrounding rock by driving advanced small pipes, excavation of upper steps, mounting of a top corrugated plate, excavation of lower steps, mounting of side wall corrugated plates, excavation of an inverted arch, fixation of a corrugated plate at the inverted arch, setting of a waterproofing and drainage system and secondary lining construction. After the steps are implemented, construction of preliminary tunnel supporting, the waterproofing and drainage system and a secondary lining structure is completed, and the whole tunnel supporting structure can be completed through repeated implementation of the steps with advancing of the tunnel during specific construction. According to the method, performance of an FRP material and a steel material are sufficiently played, advantages of the corrugated plate are combined, and the method has the advantages that the corrosion resistance is good, the bearing capability is high, the hoop rigidity is high, the construction speed is high, the operation environment is excellent, the excavation range issmall and the like.
Owner:BEIJING UNIV OF TECH

Method for preparing light thermal-insulating wall material by virtue of coal gangue

The method discloses a method for preparing a light thermal-insulating wall material by virtue of coal gangue. The thermal-insulating wall material which is light in weight and high in strength is prepared from coal gangue, a fluxing agent and a foaming agent through processes of grinding, homogenizing, granulating, sintering at high temperature, foaming and the like. The thermal-insulating wall material disclosed by invention is high in mixing amount of coal gangue, and by virtue of heat generated from sufficient burning of residual carbon in the coal gangue, the wall material can be used for basically meeting a sintering requirement, so that fuel is saved and production cost is greatly reduced. The thermal-insulating wall material disclosed by the invention has the characteristics of being light in weight and high in strength, volume density is 250-600kg/m3, compressive strength is 3.0-11.0MPa and a heat conductivity coefficient is 0.08-0.13W/(m.k), therefore the wall material is a novel thermal-insulating wall material which integrates heat insulation, waterproofing, fireproofing, corrosion resistance and aging resistance properties; and the wall material can be used as a self-thermal-insulating wall material when being cut into a building block, and can be used as a light partition board when being cut into a slab.
Owner:山西宏厚建材科技发展有限公司
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