429 results about "Poly vinyl chloride" patented technology

The invention discloses a space netted fabric compound material which comprises a PVC (Poly Vinyl Chloride) top film layer, a space netted fabric layer and a PVC bottom film layer from top to bottom, wherein the space netted fabric layer comprises upper and lower netted fabric layers and a drawn wire; the upper and lower netted fabric layers are arranged in parallel; and the drawn wire is vertically arranged between the upper and lower netted fabric layers. A preparation method for the space netted fabric compound material comprises the following steps: 1) coating paste on the space netted fabric layer; 2) preheating; 3) gluing; and 4) cooling, scrapping edge and coiling. According to the space netted fabric compound material provided by the invention, the space netted fabric layer is arranged between the PVC top film layer and the PVC bottom film layer, so that an air cushion product after being aerated has a smooth surface and a beautiful outline after the space netted fabric compound material is applied to the air cushion product; the bearing capability is excellent and the air cushion product is difficult to explode during an aerating process; and the air cushion product is excellent in elasticity and pressure resistance, due to the middle space netted fabric layer.

The invention discloses a light-color NBR/PVC (nitrile butadiene rubber/poly vinyl chloride) oil-resistant rubber material with high acrylonitrile content and relates to a rubber material. The oil-resistant rubber material contains the following ingredients in parts by weight: 70 parts of NBR, 30 parts of PVC, 25-35 parts of precipitated silica, 50-80 parts of a filling agent, 40-50 parts of a plasticizer, 1.5-2.0 parts of an anti-aging agent, 1.5-2.5 parts of a colorant, 0.5-3.0 parts of a vulcanizing agent, 1.5-3.5 parts of an accelerant, 1.5-2.0 parts of a stabilizer, and 9.5 parts (in total) of other rubber processing auxiliaries such as a vulcanizing activator and a polar additive. The light-color NBR/PVC oil-resistant rubber material with high acrylonitrile content is excellent in oil resistance and can be used in places with strict requirements on oil resistance. The light-color NBR/PVC oil-resistant rubber material can be widely used in the industries such as fuel oil rubber tubes, electric wire and cable sleeves, printing rubber rolls and sealing articles, and especially in the industries of automobile sealing parts, spare parts and the like.

The invention relates to the structure of a semiconductor device, which comprises a metal interconnection line to be tested and a test structure for analyzing the short circuit and open circuit invalidation of the metal interconnection line to be tested, wherein the test structure comprises two comb-shaped structures and an snake-shaped metal wire, two finger-shaped structures which respectively belong to the two comb-shaped structures, the snake-shaped metal wire and the metal interconnection line to be tested are arranged in the same plane, and the finger-shaped structures are connected with two handle parts by a plurality of through holes which are filled with conductive materials. When the short circuit and open circuit invalidation position of the test structure is positioned, the handle parts are firstly removed in a peeling way, the same group of finger-shaped structures is disconnected from one another, the test structure is subject to poly vinyl chloride (PVC) analysis by a double beam microscope, and only the finger-shaped structure which is in short circuit with the snake-shaped metal wire is high in luminance, so that the short circuit invalidation position can be immediately positioned at one specific finger-shaped structure, and the efficiency of invalidation analysis can be improved.

A safety slipper (10) includes a stretchable fabric material upper portion (12) and a porous anti-skid lower portion. The upper portion has a foot opening (16) and a profile heel pocket (17). The lower portion (13) is made from a scrim cloth type material having a knit of polyester threads (21) coated with a soft poly-vinyl chloride outer layer (22). The lower portion provides for a cris-crossing pattern or matrix of interconnected nodes (23) with spaces (24) therebetween.

The invention relates to a flame-retardant transparent floor film and a production technology thereof. The flame-retardant transparent floor film is prepared by treating the following main raw materials in parts by weight: 100 parts of PVC (Poly Vinyl Chloride) resin powder, 15 to 30 parts of a main plasticizer, 4 to 8 parts of a fire-retardant plasticizer, 4 to 6 parts of a stabilizer, 6 to 12 parts of an inorganic filler, and 2 to 4 parts of epoxidized soybean oil by a PVC die rolling technology. By adopting the flame-retardant transparent floor film and the production technology thereof, the conflict between the flame retardant performance, the transparence and the jet-printing performance is solved; the inorganic fillers are adopted, thus micromolecules separated by the liquid fire-retardant plasticizers are easily absorbed, and ideal transparence and the jet-printing performance can be provided for the product under efficient flame retardant performance; in addition, the generation of phenomena of wheel adhering, albinism and hard coiling can be effectively avoided by utilizing the flame-retardant transparent floor film; and simultaneously, the flame-retardant transparent floor film is excellent in wear resistance.

The invention discloses a method for producing a hot-melt-adhesive aluminum-plastic composite tape. The method provided by the invention comprises the following steps of: manufacturing a composite semi-finished product of aluminum foil and plastic thin film, preparing a hot melt adhesive, coating the hot melt adhesive, drying the hot melt adhesive, cooling, coiling, and cutting. On the productionline of a PVC (Poly Vinyl Chloride) cable sheath, the hot-melt-adhesive aluminum-plastic composite tape and the sheath material can be bonded together by utilizing the temperature of the sheath when the PVC cable sheath material is extruded; the adhesive force is strong and the testing performance is good; and when a user strips the cable PVC sheath, the hot-melt-adhesive aluminum-plastic composite tape can be easily stripped so that the procedure of stripping two times is omitted, the mounting time is greatly saved and the damage on the cable is reduced. The hot-melt-adhesive aluminum-plastic composite tape manufactured with the method can be widely applied to a communication cable industry, and can propel the application reformation of the communication cable industry on the hot-melt-adhesive aluminum-plastic composite tape and also exploit a new application market of the hot melt adhesive.

The invention discloses a PVC (Poly Vinyl Chloride) wood-plastic foaming composite and a preparation method of the wood-plastic foaming composite. The PVC wood-plastic foaming composite comprises a PVC wood-plastic foaming base material layer and an ASA (Acrylonitrile Styrene Acrylate) layer which is co-extruded and formed on at least one side of the PVC wood-plastic foaming base material layer, wherein the PVC wood-plastic foaming base material layer comprises the following components in parts by weight: 100 parts of PVC, 50-100 parts of paddings, 1-1.5 parts of coupling agents, 5-7 parts of compound stabilizers, 1.0-1.5 parts of compound foaming agents and 6-8 parts of blowing promoters. The PVC wood-plastic foaming composite disclosed by the invention has the characteristics of light weight, high specific strength, water prevention, corrosion prevention, heat preservation, good weather resistance, low formula cost and low material density, and can be widely used in outdoor product markets such as exterior decoration of buildings, garden landscapes, fences, plank ways and the like.

The invention provides a method for pre-buried screw processing method for blade roots of Megawatt-level wind turbine generator set. The method includes the steps of aligning the center of each flange hole of a blade root flange plate to corresponding center of each hole of a flange die; penetrating pre-buried screws into the flange holes of the blade root flange plate and fixing the pre-buried screws with nuts; nesting the pre-buried screws with UD sleeves; penetrating bolt sleeves into the UD sleeves; penetrating the pre-buried screws into the bolt sleeves to be tightened; penetrating threaded ends of the bolt sleeves into PVC (Poly Vinyl Chloride) wedges ; clamping the PVC chocks on the lateral sides of the UC sleeves and compacting the UD sleeves and the PVC chocks; and placing UD sticks in the inner sides of the US sleeves, filling the UD sticks between neighboring bolt sleeves, pounding the US sticks tight, and filling clearances among the UC sleeves, the UD sticks and the bolt sleeves with the UD sticks. By the aid of the method, technological process is shortened, rate of finished products is increased, working position is reduced, and production efficiency is improved; and further wind turbine generator set the pre-buried screws and the wind turbine generator set are combined tightly.

The invention discloses a method for repairing garbage compost heavy metal by adopting NTA (Nitrilotriacetic acid) of a waste interlayer. The method comprises the following steps of: filling 500g air-dried garden soil, 60g horizontal interlayer and 280g compost in a PVC (Poly Vinyl Chloride) pipe with the diameter of 7.5 cm and the length of 25 cm in turn; sowing 0.6g festuca arundinacea seeds in the pipe, applying 10-20 mmol/kg aqueous solution of NTA sodium salt of compost on the compost surface after sowing for 30 days; clipping grass after 10 days; and measuring the content changes of heavy metal Cd, Cr, Cu, Pb and Zn. A test result of the method provided by the invention shows that: the migration of harmful substances and heavy metal in the garbage compost to the soil can be reduced by paving the horizontal interlayer above the soil and under the compost, so as to increase the time of a lawn plant for absorbing heavy metal in the compost and the enrichment of heavy metal in the lawn plant under the induction of chelating agent and reduce the migration of heavy metal to deep soil.

The invention relates to an environment-friendly PVC (Poly Vinyl Chloride) weld joint sealant for a vehicle. The environment-friendly PVC weld joint sealant mainly comprises the components of diisononyl phthalate (DINP), tributyl citrate (TBC), epoxidized soybean oil (ESO), PVC paste resin, PVC blend resin, fumed silica, modified polyamide resin, barium stearate, zincsoap, triaryl phosphate, thiodipropionic acid distearate alcohol ester, tetraethoxysilane, calcium oxide, ultrathin light calcium carbonate, active nano-calcium carbonate (SPT), ultrathin heavy calcium carbonate, titanium dioxide, wollastonite in powder, ultrathin aluminium silicate and the like. According to the environment-friendly PVC weld joint sealant provided by the invention, the technologies of raw material compounding, nontoxic additive adding and the like are adopted so as to reduce the curing temperature of the sealant; and a 'wet-to-wet' technology is achieved during coating the vehicle. Through the adoption of the environment-friendly PVC weld joint sealant, the energy consumption is reduced, and the volatizing of harmful gases is reduced. The environment-friendly PVC weld joint sealant has the characteristics of nontoxicity, environmental protection, fireproof performance, energy conservation, easiness in construction and the like The environment-friendly PVC weld joint sealant is an energy-conservation environmental-protection PVC weld joint sealant.

The invention relates to flame retardant wallpaper. The flame retardant wallpaper comprises a wallpaper substrate, a PVC (Poly Vinyl Chloride) layer, a printing layer and an embossing layer, wherein the PVC layer comprises PVC resin, a plasticizer, a stabilizer, titanium dioxide, a flame retardant and a smoke abatement filling agent. The invention also relates to preparation method of the flame retardant wallpaper. The flame retardant wallpaper provided by the invention adopts the novel flame retardant which is collaboratively compounded with the novel smoke abatement filling agent, thus being good in flame retardant effect and avoiding a highly toxic metal flame retardant. The preparation method provided by the invention is simple and convenient in process, can be used for obtaining the environmentally-friendly flame retardant wallpaper, is suitable for large-scale production, and has excellent economic value and social value.

The invention discloses an immune colloidal gold test strip for detecting porcine epidemic diarrhea virus as well as a preparation method and application thereof. The test strip sequentially comprises a sample pad, a colloidal gold pad, a nitrocellulose membrane, an absorbent paper and a PVC (poly vinyl chloride) base plate arranged below and used as an assembling platform according to a connection sequence, wherein the colloid gold pad comprises a glass cellulose membrane of a PEDV (porcine epidemic diarrhea virus) monoclonal antibody adsorbed with colloidal gold marks, the nitrocellulose membrane is provided with a goat rat resisting IgG (immunoglobulin G) polyclonal antibody coated quality control line and a rabbit resisting PEDV S protein polyclonal antibody coated detection line, and the PEDV monoclonal antibody is generated in secretion of hybridoma cells with a preservation number CCTCC C201392. Experiments prove that the test strip has the advantages of strong specificity and good stability; the operation is simple, technicists do not need special training, no special equipment is needed, the detection cost is low, the detection speed is fast and the results can be read in 5-10 minutes, and the test strip is applicable to field test.

The invention discloses an antiflaming PVC (poly vinyl chloride)/ABS (acrylonitrile butadiene styrene) alloy material which is characterized in that the antiflaming PVC/ ABS alloy material comprises the following components in parts by weight: 10-80 parts of PVC resin, 10-70 parts of ABS resin, 1-10 parts of compatibilizer, 1-7 parts of heat stabilizer, 1-10 parts of filler, 1-5 parts of antiflaming synergist, 2-15 parts of processing aid and 1-15 parts of flexibilizer. The antiflaming PVC/ ABS alloy material disclosed by the invention has good antiflaming property, excellent processability and stable size.

The invention relates to a bagging packaging method for a poly vinyl chloride (PVC) pipe. A bag opening portion of a packaging bag is sleeved on a mold support arranged horizontally. A bag grabbing device is controlled to finish bag grabbing movement through a pneumatic mode. The bag grabbing device moves along a guiding track transversely and drives the packaging bag to move synchronously to conduct bagging work on the PVC pipe. Stretching and retracting of two cylinder supporting devices in the vertical direction are matched to achieve smooth bagging movement. The bagging packaging method can be applied to simultaneous bagging packaging of a plurality of pipes, and traditional pipe winding method and manual packaging method are broken through. On the one hand, a problem of low efficiency of traditional pipe winding packaging is solved, and on the other hand, labor cost is saved and manual bagging packaging process can be replaced.

The invention provides a method for treating the uneven settlement of a building, which comprises the steps: (1) positioning a drill hole: during preparing for the construction, fixing a tool, feeding a PVC (poly vinyl chloride) sleeve after drilling, drilling a hole at a preset depth, washing the drill hole, and simply pressing water; (2) grouting a contacting section: during grouting, building a vertically-distributed grout stopping wall, and grouting according to the same axes direction after grouting the grout stopping wall; and repeatedly drilling and grouting to a designed altitude; (3) backwards filling the grout to seal the hole: mechanically pressing the grout to seal the hole at the whole hole of a bed rock section, withdrawing the sleeve, backwards filling the grout to seal the hole, and organizing the data of the single hole and submit the date; and (4) monitoring the lift value of a plurality of settlement points of the building to ensure the next grouting quantity. By introducing a design and construction method of grouting by means of dynamic tracking, the method for treating the uneven settlement of the building is good for popularizing and using the grouting technology for the uneven settlement of the peripheral structure and building in the engineering construction such as a foundation pit and a tunnel.

The invention relates to a preparation method of a disposable sweat-absorbing antibacterial glove. The method comprises steeping fluid preparation, degassing, steeping and bonding, drying, secondary steeping and bonding, secondary drying and demolding. Konjac glucomannan is taken as a carrier and other aids are added, so that the disposable sweat-absorbing antibacterial glove has the advantages of excellent film forming property, moisture retention, hydroscopic property, bacterinertness, high tensile strength and high flexibility; the konjac glucomannan is taken as a main material of the disposable environmentally-friendly glove, so that the glove has the advantages of high tensile strength, good wearing effect, high antibacterial efficiency and capability of keeping hands clean and sanitary during long-time operation; the glove can be biologically degraded completely, is environmentally-friendly, and has low carbon content; the glove is hydroscopic and humectant, so that skin is keptin a dry state, and folded skin and hand adhesion caused by palm sweating due to long-time wearing of the glove are avoided; the glove is nontoxic, harmless and resistant to high temperatures, and does not cause the toxin transfer phenomenon of other material gloves such as a PVC (Poly Vinyl Chloride) glove and the like due to direct contact with foods or high-temperature foods; a production process is simple, materials are readily-available, and price is low; and the glove has a certain retention effect on additive pigments.

The invention provides a method for reinforcing a concrete column by utilizing a PVC-FRP (Poly Vinyl Chloride-Fiberglass Reinforced Plastic) pipe and belongs to the technical field of civil engineering. The method is suitable for maintaining and reinforcing the concrete columns in civil buildings, industrial plants and bridge structures. By mainly aiming at the reinforced concrete column, a PVC pipe is sheathed outside the concrete column, a reinforcing steel bar is configured in the PVC pipe, FRP cloth is wound outside the PVC pipe to form restraint action on the concrete column with the PVCpipe, and the internal pressure of the PVC pipe sheathed outside should reach above 1Mpa. The FRP cloth can adopt a carbon fiber composite material, a glass fiber composite material or an aramid fiber composite material. Compared with the traditional reinforcing method, the method for reinforcing the concrete column by utilizing the PVC-FRP pipe has the advantages that the reinforced concrete column is high in bearing capacity, small in cross section size and good in ductility and durability; and the method is convenient to construct, low in construction price and the like.

An airtight cooler box having a base panel, a collapsible unitary side panel sized and folded to extend orthogonally from the base to form an enclosure with a top opening defined by the side panel top edges. A top panel is included, the top panel sized and folded on an edge to extend orthogonally from the unitary side panel and further sized for top panel three edges to fit the top opening, the top panel further comprising a plurality of pouches positioned on an inside surface. A rigid base plate is included, the rigid base plate being sized to cover the base panel when the rigid base plate is positioned inside the container resting on a base panel inside surface. The cooler box further includes a rigid top plate having a plurality of vent openings through the rigid top plate corresponding to the position of pouches positioned on the top panel inside surface and sized to be located inside the container under the top panel inside surface. A zipper closure on three top edges of the side panel and corresponding top panel three edges allows the cooler box to be closed upon the product contents. The base panel, side panel and top panel further comprise inner and outer surfaces of a poly-vinyl chloride material bonded to an aluminum laminate with multiple layers of foam interposed between the inner and outer surfaces.

The invention discloses a formula of a PVC (Poly Vinyl Chloride) double-wall corrugated pipe, and a production technology of the PVC (Poly Vinyl Chloride) double-wall corrugated pipe. The formula comprises the components as follows: PVC resin, calcium carbonate, chlorinated polyethylene, stabilizing agent, ACR resin, paraffin, polyethylene wax and stearic acid, wherein the components are in percentage by weights as follows: 60 to 72% of PVC resin, 18 to 30% of calcium carbonate, 5.4 to 7.2% of chlorinated polyethylene, 3.9 to 4.8% of stabilizing agent, 2.7 to 3% of ACR resin, 0.6 to 1.2% of paraffin, 1.2 to 2.4% of polyethylene wax, and 1.5 to 2.4% of stearic acid. The formula has the advantages that the PVC double-wall corrugated pipe is formed by extruding PVC resin which is served as the main raw material at high temperature and high pressure; the PVC double-wall corrugated pipe has resistance to impacting, resistance to high temperature and coldness, and has long service life, and is applied to paving underground communication pipelines, as well as performing protection to communication optical cables and cables.

The invention relates to an acrylic impact modifier having a core-shell structure that provides an acrylic impact modifier composition comprising (a) a rubber core containing an alkyl acrylate polymer comprising at least two layers having different cross-linking densities, and (b) a shell containing an alkyl methacrylate polymer; to a process for the preparation of the acrylic impact modifier; and to a poly(vinyl chloride) composition comprising it. The acrylic impact modifier imparting excellent impact resistance was invented by employing multi-stage polymerization and at the same time by controlling the swelling index of rubber particles by changing the degree of cross-linking from stage to stage. And the poly(vinyl chloride) comprising the impact modifier of the present invention has good weatherability as well as excellent impact strength.

An airtight cover assembly includes a side panel folded around goods on a pallet presenting top and bottom opening, a top panel with a plurality of pouches positioned on an inside surface above a vented rigid plate, and a bottom panel encloses the pallet. Hook and loop closures secure the panel assembly. Panel inner and outer surfaces of a poly-vinyl chloride material bonded to an aluminum laminate enclose multiple layers of foam.

The invention discloses manufacturing equipment and a production process and method of a biaxial orientation PVC (Poly Vinyl Chloride) and polyolefin material pipe. The manufacturing equipment comprises an extruding machine, wherein an outlet of the extruding machine is connected with a pipe forming die head; a dilation temperature regulating region, a dilation diameter-fixing region and a cooling sizing region are sequentially arranged at the outlet end of the pipe forming die head; a traction machine is arranged on the outlet end of the pipe forming die head at last, the dilation temperature regulating region is a straight line pipe with a cooling effect, the dilation diameter-fixing region is a horn-shaped dilation pipe, the cooling sizing region is a straight line pipe which is consistent with the dilation diameter-fixing region in maximum diameter, the pipe forming die head is connected with a compressor, an air pipe of the compressor is communicated with a vent hole in the middle of the pipe forming die head, the outlet of the pipe forming die head is connected with a drawing rope, and the other end of the drawing rope is connected with an elastic plug for plugging the pipe. With the manufacturing equipment, molecules of the pipe are arranged from a disordered manner to an ordered manner, and the strength and the toughness of the pipe can be greatly improved due to molecular orientation change.

The invention relates to an antibacterial mold-resistant PVC (Poly Vinyl Chloride) flexible composition and a preparation method thereof. The PVC flexible composition has strong performance of resisting mold and antibacterium and can be applied to sealing situations having high requirements on antibacterial mold-resistant performance, such as refrigerators and washers. The PVC flexible polymer on the basis of 100 weight percent of PVC comprises the following components: 3-5 parts of thermal stabilizer, 0.1-3 percent of antibacterial mold-resistant agent, 80-130 parts of plasticizer, 10-50 parts of powdered rubber P83, 0.2-0.6 part of inner lubricant and 0.01-0.3 part of outer lubricant. The antibacterial mold-resistant agent is a guanidyl-based polymer (polyguanidine)-polyguanidine pyrithione.