148 results about "Duroplast" patented technology

A method for continuously producing an insulation board comprising a rigid plastic foam core having two major surfaces and a facing material on one or both of the major surfaces, the method including conveying a facing material along a production line, depositing a partially expanded froth foam of a plastic mixture, which contains at least one frothing agent, on the facing material, and further expanding and curing the froth foam in contact wiht the facing material to form the insulation board. The board is particularly useful as roof insulation.

The invention discloses a PVC (polyvinyl chloride) wood-like grain master batch, comprising a component A and a component B, wherein the component A includes 0-80 parts by weight of PVC resin, 2.5-7.0 pars by weight of heat stabilizer, 5.0-15 parts by weight of processing agent, 0-25 parts by weight of filler, 0.5-15 parts by weight of dispersing agent, 0.2-5.0 parts by weight of weather-resistant agent, and 5.0-70 parts by weight of pigment; and the component B comprises 20-80 parts by weight of PVC resin, 2.5-7.0 by weight parts of heat stabilizer, 5.0-15 parts by weight of processing agent, 0-30 parts by weight of filler, 0.5-15 parts by weight of dispersing agent, 0.2-5.0 parts by weight of weather-resistant agent, and 5.0-40 parts by weight of pigment. By adopting the PVC wood-like grain master batch disclosed by the invention, the effects of bright colors, good weather resistance, excellent mechanical property, clear wood grain lines and vivid wood grains can be formed in the products such as different formula systems of hard PVC plastic materials, PVC doors and windows, PVC boards and the like.

The invention discloses a PVC (polyvinyl chloride) colorful coextruded material and an application thereof, and the colorful coextruded material comprises the following materials in parts by weight: 70-100 parts of PVC resin, 4.0-7.5 parts of heat stabilizer, 0-8.0 parts of processing agent, 0-8.0 parts of flexibilizer, 0-15 parts of filler, 0.3-2.0 parts of lubricating agent, 0.1-1.5 parts of weather-resistant agent, and 0.1-5.0 parts of pigment. By adopting the PVC colorful coextruded material disclosed by the invention, surface co-extrusion layers with bright colors, good weather resistance and excellent mechanical property can be formed in the products such as different formula systems of hard PVC plastic materials, PVC doors and windows and the like.

The invention relates to the field of flexible electronic material manufacturing, and discloses a novel nanowire-based electrode pattern preparation method. The method mainly comprises the following steps: (1) covering a suction filtration port of a negative pressure environment container with a filter membrane, covering the filter membrane with a 3D rubber mask with an inner hole structure, pressing a tubular container with a smooth bottom on the 3D rubber mask, fixing the tubular container with a clamp, and pouring a nanowire solution into the container at the top for suction filtration; (2)after all the liquid is subjected to suction filtration, sequentially taking down the top container and the 3D rubber mask, then transferring the filter membrane to a workbench through tweezers, wherein the workbench can be made of glass or hard plastic or the like, and a double faced adhesive tape is attached to the upper surface of the workbench; and (3) after the filter membrane is completelydried, coating the filter membrane with the liquid organic resin material to be cured and the like, and tearing off the organic resin after the liquid organic resin material to be cured and the like are cured, so as to obtain the nanowire / organic resin flexible electrode with a specific pattern. The 3D rubber mask with the inner through hole structure is innovatively designed, in combination witha vacuum filtration system, complex electrode patterns with clear boundaries can be efficiently prepared, the material utilization rate can reach 95% or above, and the method is suitable for large-scale production of flexible electronic materials and has wide application prospects.

The invention belongs to the technical field of packaging equipment, in particular to food packaging equipment and a food packaging method. The food packaging equipment comprises a high-temperature material barrel, a packaging film and a driving roller; the packaging film is wound on the outer surface of a plastic film roller; the free end of the packaging film is wound on the surface of the driving roller; a hard plastic film is arranged on the surface of the packaging film; three edges of the hard plastic film are pressed on the surface of the packaging film through hot pressing, and an opening is formed in the top of the hard plastic film; an auxiliary roller is arranged between the plastic film roller and the driving roller; the packaging film passes through the surface of the auxiliary roller; the auxiliary roller consists of two circular plates and a plurality of groups of iron rods; and the two circular plates are fixedly connected by the iron rods. According to the food packaging equipment and the food packaging method, the opening of the hard plastic film can be opened without an additional opening device, so that the process flow can be simplified; and meanwhile, hot airinside the high-temperature material barrel can heat a heat transfer plate through an elastic heat conduction pipe for heat sealing at the opening, so that an electric heating plate does not need to be used, and waste heat is recycled while the electric energy is saved.

The invention in particular provides a pine-tree solar cell landscape tree, which belongs to the field of solar photovoltaic. The pine-tree solar cell landscape tree comprises a trunk, branches and leaves, wherein the trunk, the branches and the leaves are sealed by high molecular rubbers and connected with each other by reserved ports; the trunk is a copper wire coated by hard plastic; the branches are copper wires coated by soft plastics; the leaves are dye-sensitized solar cells packaged by transparent glass tubes or plastic tubes; the cells are connected with each other in parallel; and the dye-sensitized solar cells among different branches are connected with each other in parallel. The pine-tree solar cell landscape tree provided by the invention can be used for collecting lights from each spatial direction, so that the sunlight utilization efficiency is increased; a defect of larger space usage of a flat-plate solar cell in the large-area application process is overcome; a making process is simple; meanwhile, the solar cell tree can be used as landscape trees for beautifying environments outdoors.

A recharge sleeve for use with a spray dispenser device, made of a matrix comprises an absorptive material impregnated with a chemical composition that dissolves in solution created when the sleeve is contacted with a diluent fluid such as water. The recharge sleeve is elongated in shape with a center opening parallel to the long edges of the sleeve for mounting on the diptube of the spray dispenser device. A conically shaped retainer formed of rigid plastic is attached or provided for attachment to the lower end of the diptube for stabilizing the diptube and retaining the recharge sleeve clear of the bottom of the retainer after the sleeve has been applied to the diptube. When of the spray dispenser device is sealed and the spray dispenser device is shaken, the fluid penetrates into the matrix material, and the chemical composition dissolves in the fluid creating a cleaning, sanitizing, or disinfectant solution that will remain stable and fully active in use.

The invention discloses a super-high performance concrete compound pipeline preparation method. A compound pipeline is composed of an outer layer super-high performance concrete pipeline and an inner layer plastic pipeline, and the pipeline forming die adopted comprises a steel outer die and a hard plastic inner die. The method comprises the steps that 1, the dies are assembled, a pumping machine is made to be connected with the dies, and the sealing property of the pumping machine is tested; 2, a super-high performance concrete mixture is prepared; 3, the super-high performance concrete mixture is added into the pumping machine, and a pumping ejecting technology is adopted for pipeline forming; 4, after the pumping is finished, a grouting hole of the assembled dies is sealed in time; 5, entire maintenance is conducted on the dies in the pipeline belt, and die removal can be conducted when super-high performance concrete reaches the die removal intensity; 6, the dies are removed, the steel outer die is removed, and the hard plastic inner die is remained; 7, the pipeline is subjected to wet and heat maintenance or natural maintenance after the die removal is conducted until the intensity meets the requirement. Compared with other traditional pipelines, the pipeline prepared by the super-high performance concrete compound pipeline preparation method has the advantages that the durability is good, the intensity is high, the wall thickness is small, the inner wall is smooth, floatation is not prone to occurring, the sealing performance is good, the inner die is not needed to be removed in the forming process, and the manufacturing technology is simple.

In a suction base for the support of an apparatus, comprising a housing consisting of a hard plastic material and having an opening surrounded by a housing support edge and a suction membrane of PVC disposed in the housing so as to extend across the housing opening and being movable between a release position and an operating position in which the suction membrane is pulled into the housing and a vacuum is generated between the membrane and a support surface such that the support base is firmly pressed into contact with the support surface via the circumferential edge area of the membrane, a separating element is disposed between the housing and the suction membrane to prevent sticking of the membrane to the housing edge upon exposure of the suction base to heat and the release of plasticizer from the suction membrane.

The invention discloses a gravity adsorption type test rod for rapidly detecting the content of chloride ions in a sandstone material, a preparation method and application thereof. The test rod comprises a hard plastic shell with scales and a test rod body wrapped in the hard plastic shell, the test rod body is composed of cotton fibers, allochroic silica gel, silver chromate and a polycarboxylicacid water reducing agent, one end of the hard plastic shell is closed and used for fixing the test rod body, and the other end of the hard plastic shell is in an open state. Filtrate filtered from the sandstone material is sucked by a suction pipe, the filtrate is dripped into a vertically placed test rod body through an opening end, the color change length of the test rod body is read after thecolor of the allochroic silica gel at the bottom of the test rod body changes, and is compared with the color change length data of the sample, thereby obtaining the content of chloride ions in the sandstone slurry. The test rod disclosed by the invention has the characteristics of small size, convenient use, high stability, low cost and the like, is large in monitoring range and wide in application range, and has a good development prospect.

A cosmetic applicator, comprising a sponge to absorb substance and prevent leakage thereof is provided herein. The sponge having an elastic open-cell of a three-dimensional membrane structure of elastic polymer and is double over molded in combination with the rigid plastic base. The sponge has predefined density enabling to absorb the substance and skin surface having predefined thickness to prevent a spontaneous release of the substance. The substance may be squeezed out of the sponge only when applying pressure on the sponge. A Radio Frequency Identification (RFID) tag is integrated to the rigid plastic base to allow information related storage.

The present invention provides compositions such as a polymer grout, a molded plastic part, a void-filling plastic material, a concrete-anchoring material and a polymeric casting made from a thermosetting polymer chosen from vulcanized rubbers, polyoxybenzylmethylen-glycolanhydride (“Bakelite”), novolac resins, resole phenolic resins, duroplast, bismaleimide resins, polyimide resins, melamine, acrylic resins, polyester resins, cyanate ester resins, phenolic triazine resins, paracyclophane resins and epoxy resins and at least one phase change material (“PCM”). The compositions of the present invention have a lowered exotherm compared to compositions made from the same thermosetting polymer without the addition of a phase change material. Also provided are improved processes for producing the inventive compositions.

The invention discloses a degradable ecological vegetative blanket and a preparation method thereof. According to the technical scheme, the degradable ecological vegetative blanket is characterized bycomprising a polyethylene net and a thin sponge which are sequentially arranged from top to bottom, seeds, fertilizer and a soil improving agent which are attached to the thin sponge, and hard plastic piles used for fixing, wherein the polyethylene net is connected with the thin sponge through an adhesive. The vegetative blanket is laid on a current-situation-soil construction slope and fixed bythe hard plastic piles, sandy soil is laid on the surface layer of the polyethylene net, and the thin sponge is a natural degradable material. The preparation method includes: removing weeds, gravels,capping mass and sundries on the slope; embedding the thin sponge and the polyethylene net into a position, 10cm in depth, at the top of the slope, and allowing the rest part of the vegetative blanket to attach to the slope and spread; when a second vegetative blanket is need, arranging a first vegetative blanket on the second vegetative blanket in an overlapping manner, wherein the thickness ofthe two overlapped vegetative blanket is 10cm; driving the hard plastic piles into the vegetative blanket to perform fixation, and laying the sandy soil at the upper end of the polyethylene net. Thedegradable ecological vegetative blanket is simple in construction and capable of fast achieving slope greening.

A method and sealing gasket are shown for providing a sealing joint between a spigot section and a socket section of low pressure plastic pipe, such as drain waste vent pipe that require a minimum of tools and operational steps to complete. The sealing gasket is installed in one of the sections to be joined and the spigot section is inserted within a mouth opening of the socket section with the sections being pressed together in a single operation, thereby forming both the joint and the seal. The sealing gasket is a composite gasket made with one section of a hard plastic material and one section of a thermoplastic elastomer material. No glue or adhesive is required.

The present invention relates to the use of a thermosetting polymeric powder composition in a 3D dry printing process to produce a 3D duroplast object, the composition comprising at least one curablepolymeric binder material with free functional groups, wherein during the 3D dry printing process the formed object is only partially cured to a curing degree of below 90 %, preferably below 60 %, most preferably between 35 % and 60 %, and the printing process is being followed by a post treatment comprising a heat treatment step to fully cure the printed object into a 3D duroplast object.