124results about How to "Fully foamed" patented technology

The invention relates to a color rubber and plastic heat-insulating material and a preparation method thereof. The rubber and plastic heat-insulating material is prepared from polrvinyl chloride paste resin, dinitrosopentamethylene tetraamine, an antiager, styrene rubber, protective wax, an antioxidant, chlorosulfonated polyethylene rubber, diphenyl guanidine, mercaptobenzothiazole, zinc dibutyl dithiocarbamate, zinc diethydithiocarbamate and the like. The performance and the color difference of the product are stabilized by adding a coloring material to perform banburying on the finished rubber again and combining a new vulcanizing foaming technology and a super-long water-cooling system; the prepared color rubber and plastic heat-insulating material does not have fibers and dust, prevents dew formation, has a smooth surface and high cleanliness, has the same bright color as equipment, is environmentally-friendly and non-toxic, reduces secondary construction, saves cost, greatly improves the using performance of the product, prolongs the service life and takes full advantage of the product performance.

The invention discloses PVC (polyvinyl chloride) foamed artificial leather and a preparation method thereof. The PVC foamed artificial leather comprises a fabric base material, a foaming layer and a surface layer which are attached from inside to outside sequentially, wherein the foaming layer comprises components in parts by weight as follows: 95-105 parts of PVC resin, 75-85 parts of filling powder, 75-85 parts of a plasticizer, 3.5-4.0 parts of a stabilizer, 4.5-5.5 parts of a foaming agent and 9.5-10.5 parts of masterbatch; the surface layer comprises components in parts by weight as follows: 65-75 parts of PVC resin, 6-8 parts of filling powder, 46-52 parts of a plasticizer, 1.5-3 parts of a stabilizer and 4.5-5.5 parts of masterbatch. The preparation method comprises steps as follows: (1), blending; (2), mixing, open milling and filtering; (3), calendering attachment; (4), cooling; (5), foaming; (6), embossing, cooling and rolling-up to obtain a finished PVC foamed artificial leather product. The artificial leather prepared with the method feels good, and is good in texture, high in breathability and good in wear resistance.

The invention discloses a screw rod cleaning material and a preparation method of the screw rod cleaning material. A recipe of the cleaning material comprises 100 weight parts of ethylene vinyl acetate copolymers (EVA) or low-density polyethylene (LDPE) or elastic bodies, 1 to 20 weight parts of foaming agents, 1 to 10 weight parts of whitening agents and 1 to 5 weight parts of filling agents. The EVA is ethylene vinyl acetate copolymers, and the LDPE is high-pressure low-density polyethylene. Compared with the prior art, the screw rod cleaning material has the advantages that the cleaning material produced by the recipe is an expansion material, and in the cleaning process, the cleaning material can be expanded, i.e. the volume is increased during the cleaning through the expansion of the cleaning material, so cleaning dead corners are eliminated, the used cleaning materials are few, the use cost is reduced, and in addition, the cleaning effect is better. The preparation method of the cleaning material has the advantages that the process is simple, the production is convenient, the quality is stable, the whole production can be completed only through a mixing machine and an extruding machine, the operation is safe and sanitary, and the screw rod cleaning material belongs to a product with good economy and market prospects.

The invention belongs to the technical field of high polymer materials, and particularly relates to a rubber-plastic blending foam material and a preparation method thereof. The rubber-plastic blending foam material is prepared from components in parts by weight as follows: 25-35 parts of a rubber-plastic blending material, 5-8 parts of a foaming agent, 0.05-0.3 parts of a vulcanizing agent, 1.5-1.8 parts of an accelerant, 25-35 parts of filler, 5-8 parts of carbon black, 0.5-1 part of paraffin, 15-20 parts of chlorinated paraffin, 0.1-0.2 parts of stearic acid, 1-2 parts of epoxy soybean oil,0.3-0.5 parts of zinc oxide, 0.5-1 part of polyethylene glycol and 0.1-0.5 parts of an anti-aging agent. By means of proportion optimization selection of the components, content of chlorine ions in the obtained rubber-plastic blending foam material is lower than 400 ppm, and after a copper pipe is wrapped with the material and used for 240 h at the temperature of 60 DEG C and humidity of 95% plusor minus 3%, the color of the copper pipe can be close to that of a copper tube which is not wrapped with the rubber-plastic blending foam material.

The invention provides a recyclable foam base fluid for a sand-washing well, comprising an N-alkyl-beta-amino propionic acid type amphoteric surface active agent and water, wherein the molecular formula of the N-alkyl-beta-amino propionic acid type amphoteric surface active agent is RNHCH2CH2COOM, wherein R is straight-chain alkyl group, and M is sodium ion or ammonium ion; and the ratio of partsby weight of the N-alkyl-beta-amino propionic acid type amphoteric surface active agent and water is (0.1-0.6):100. By utilizing the recyclable foam base fluid, the operation cost for foam sand-washing well can be reduced, and the environment-friendly performance can be realized.

The invention provides a method for producing hollow glass spheres by using waste glass, which comprises the following step: washing waste glass and crushing, adding 3-10% of feldspar, 0-6% of talcum, 1-3% of soda ash, 1-5% of limestone, 1-3% of soluble glass, 1-2% of white copperas zinc sulfate and 1-3% of calcium sulfate according to waste glass weight, performing ball milling on mixed material, adding paste containing starch and cellulose, performing spray drying at 1100-1200 DEG C, heating and spheroidizing to obtain the hollow glass spheres. By using the method of the invention, waste can be changed into valuables, production efficiency of the hollow glass spheres can be increased, and cost is reduced.

The invention particularly relates to a stable multilayer-film structural foaming agent and a preparation method of the stable multilayer-film structural foaming agent. The technical scheme is that the preparation method comprises steps as follows: getting 20 to 50wt% of main agent, 20 to 50wt% of assistant and 20 to 50wt% of foam stabilizer as the raw materials at 15 to 25 DEG C; then adding foam stabilizer of which the mass is 10 to 20 times that of the raw materials mentioned above; and agitating for 5 to 15 minutes, so as to obtain the stable multilayer-film structural foaming agent, wherein the main agent is one of sodium lauryl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, alkylphenol ethoxylates and fatty alcohol-polyoxyethylene ether; the assistant is one of dodecanol, polyethylene glycol, setanol, octadecanol and lauromacrogol; and the foam stabilizer is one of sodium carboxymethylcellulose, gelatin, sodium carboxymethyl starch, arabia gum adhesive and hydroxyethyl cellulose. The preparation method has the characteristics of being simple, convenient to operate, and short in preparation time and the like; and the prepared stable multilayer-film structural foaming agent is relatively small in dimension, uniform in distribution, full in foaming and high in stability.

The invention discloses a preparation method of cellulose phenolic foams. The preparation method comprises the following steps: preparing a mixed aqueous solution containing 7wt% of sodium hydroxide and 12wt% of urea, precooling the mixed aqueous solution to -12 DEG C, adding crushed cellulose, and stirring for 2-5 minutes to obtain a transparent cellulose solution; adding the cellulose solution into phenol to obtain biomass phenol; mixing the biomass phenol with formaldehyde according to a mole ratio of 1:1.5-1:2.0, adding a catalyst to perform condensation polymerization, performing reduced pressure dehydration, cooling and discharging to obtain fluid cellulose phenolic resin; and uniformly mixing 100 parts of fluid cellulose phenolic resin, 4-8 parts of surfactant, 3-10 parts of foaming agent and 10-20 parts of curing agent in parts by weight, foaming for 10-20 minutes at 60-80 DEG C to obtain the cellulose modified phenolic foams. By adopting the preparation method disclosed by the invention, cellulose replaces part of phenol, so that the production cost of the phenolic foams is reduced, and meanwhile, efficient utilization of biomass resources is promoted.

The invention discloses a water-blown warm-mix flame-retardant asphalt mixture and a preparation method thereof. According to the invention, through comprehensive utilization of a water-blown asphalt warm-mixing technology and an asphalt flame-retardation technology, construction temperature of an asphalt pavement is effectively reduced, the safety factor of a tunnel asphalt pavement is increased, and the advantages of energy conservation, emission reduction, greenness, environmental protection, reduction in construction cost, improvement of warm-mixing construction technology for tunnel flame-retardant asphalt pavements and the like are obtained. The invention also provides a design method for the water-blown warm-mix flame-retardant asphalt mixture. The method utilizes the concept of equivalent design of basic mix ratios and technique indexes to improve the traditional design method for the warm-mix flame-retardant asphalt mixture, provides bases for the design of the water-blown warm-mix flame-retardant asphalt mixture and fills a gap in the design method for the water-blown warm-mixed flame-retardant asphalt mixture.

The present invention provides a manufacturing method of instant self-heating sea cucumber; dried sea cucumber is taken as the raw material and added with a self-heating bag and outfit with a plastic bag after the treating processes of manufacture, preservation, sterilization and air seasoning. The instant self-heating sea cucumber made with the present invention can be preserved under normal temperature and is convenient for people to eat; the individual of the instant self-heating sea cucumber is fresh and living and the body is full; the manufactured sea cucumber has the connatural flavor of marine products and the taste and the meat are smooth, soft and flexible; the sea cucumber is delicious and can be automatically heated quickly. People can enjoy hot sea cucumber no matter on field study and tour or in cold winter; therefore, the instant self-heating cucumber is an optimum instant nutritious food, which is convenient for eating.

The invention discloses a method for preparing fermented soybeans in water. The method comprises the specific steps of step one, raw material treatment: after soybeans are soaked by warm water, steaming is performed for 9-15 min under pressurization of 0.15 Mpa; step two, fermented soya bean yeast cultivation; step three, fermentation: during the fermentation period, stirring is performed slightly every 12 h; step four, pH adjustment: 8-10 lemon slices are placed on the surfaces of the fermented soybeans in water, warm water with the temperature of 30 EDG C to 35 DEG C is sprayed to the lemon slices uniformly by a watering pot, the spraying amount of the warm water is 0.5 kg, the lemon slices are covered and placed for 1 h after spraying, and the lemon slices are taken out; step five, seasoning: 40 g of pepper is added, and the mixture is stirred uniformly; step six, sterilization and filling: the mixture is heated to 90 DEG C to 93 DEG C, the temperature is kept for 20 min, and filling is performed while the mixture is hot. According to the method for preparing the fermented soybeans in water, complete appearances of the soybeans can be kept, the processing time is shortened, the phenomena of rancidity and stinking are avoided, and the expiration date of the fermented soybeans in water is prolonged.

The invention relates to a heatproof environment-friendly material for preventing noise pollution and a manufacturing method thereof. The environment-friendly material is prepared from a liquid crystal high-molecular polymer and an additive; the additive comprises a dispersing agent, a physical foaming agent and a flexibilizer; the dispersing agent is hydroxypropyl methyl cellulose; the physical foaming agent is fluorocarbon; and the flexibilizer is liquid ethylene propylene rubber. The various ingredients of the heatproof environment-friendly material for preventing the noise pollution respectively account for the percentage by weight as follows: the liquid crystal high-molecular polymer accounts for 88.5 to 90.5 percent; the hydroxypropyl methyl cellulose accounts for 1.8 to 2.8 percent; the fluorocarbon accounts for 4.5 to 6.2 percent; and the liquid ethylene propylene rubber accounts for 2.5 to 4.4 percent. The heatproof environment-friendly material provided by the invention is good in moldability, tenacity and noise reduction performance, resistant to high temperature, and friendly to the environment.

The invention discloses a foaming furnace which comprises a horizontal furnace and a vertical furnace, wherein a foamed sheet is fed through the horizontal furnace and the vertical furnace in sequence so as to be heated and foamed; the vertical furnace is arranged below the horizontal furnace; the vertical furnace comprises a furnace body of which the inlet is communicated with the outlet of the horizontal furnace, a heating device and an unfolding device; the heating device is arranged inside the furnace body so as to form a heating field through which the foamed sheet passes; the unfolding device comprises at least one pair of unfolding rollers which are arranged inside the furnace body so as to clamp and unfold the foamed sheet, and a sucking mechanism which is arranged at the outlet of the furnace body so as to suck and unfold the foamed sheet. According to the foaming furnace disclosed by the invention, via cooperation between the unfolding rollers and the sucking mechanism inside the vertical furnace, the foamed sheet can be relatively well unfolded and can be relatively completely and uniformly foamed, the product quality can be improved, the production capacity can be increased, and the purpose of energy conservation can be achieved.

The invention belongs to the technical field of rubber and plastic products, and provides an ultralow-temperature-resistant rubber and plastic product. The product comprises, by mass, 20-25 parts of ethylene propylene diene monomer rubber. 3-5 parts of butyl rubber, 1-1.5 parts of butadiene rubber, 5-7 parts of a foaming agent, 20-30 parts of a flame retardant, 6-8 parts of operating oil, 4-7 parts of a low-temperature plasticizer, 0.3-0.5 part of an activator, 0.1-0.3 part of stearic acid, 3-5 parts of protective wax, 3-5 parts of an accelerant, 0.5-0.8 part of a vulcanizing agent and 0.1-0.2part of pigment. The ethylene propylene diene monomer, the butyl rubber, the butadiene rubber, the foaming agent, the flame retardant, the pigment, the operating oil, the low-temperature plasticizer,the protective wax, the activator and the stearic acid are subjected to banburying, discharging, open milling, compound milling and storage for 22-26 h, the vulcanizing agent and the accelerant are added, and mixing, extrusion molding and vulcanization foaming are conducted to obtain the ultralow-temperature-resistant rubber and plastic product. Through the technical scheme, the problem of poor low-temperature resistance of rubber in the prior art is solved.

A blow shoe mould comprises an upper mould with an upper mould cavity, a lower mould with a lower mould cavity, and a mould core installed between the upper and lower moulds; the blow shoe mould further comprises an air discharging outlet installed on the upper mould for discharging air in the upper and lower mould cavity; the rear side of the mould core is hinged with the lower mould; the rear side of the upper mould is hinged with the rear side of the mould core; the upper mould is provided with a material injection passage and an air inlet passage; the air inlet passage comprises an air inlet installed on the top of the upper mould and a plurality of small holes communicated with the air inlet and densely distributed on the top of the upper mould cavity; the air discharging outlet is installed on the upper mould; the air inlet passage further comprises an edge passage formed by butting the upper and the lower passages; the upper passage is installed on the periphery of the upper mould cavity and communicated with the air inlet; and the lower passage is installed on the periphery of the lower mould cavity and communicated with the lower mould cavity. The shoe mould uses a plurality of small holes to blow with the lower passage in different directions; the air discharging outlet is installed on the upper mould; thus, the gas can be sealed in the mould cavity so that foam materials such as PVC can be fully foamed.

The invention provides a wood plastic board, and belongs to the technical field of composite board preparation. According to the wood plastic board, ecological wood powder replaces part of wood powder, resources can be saved, PVC (polyvinyl chloride), calcium powder, wood powder and ecological wood powder can be uniformly mixed in the presence of stabilizers, a homogeneous system is formed, besides, the homogeneous system is sufficiently foamed under combined action of raw materials such as foam regulators, foaming agents and stearic acid, and the mechanical property and the product qualification ratio of the wood plastic board are improved. An embodiment shows that the tensile strength of the wood plastic board reaches 23.0-23.9MPa, the shore hardness of the wood plastic board is 58-64HD,and the wood plastic board has an excellent mechanical property.

The making process of foamed body with air permeable holes includes the steps of setting the material to be foamed inside a mold with needles, heating and pressurizing the mold for foaming and cross-linking, cooling the mold and demolding. The foamed body may be further cut to required sizes. Or, the material may be first heated and pressurized inside one first mold to form the initial blank, and then foamed and cross-linked in the second mold with needles to obtain the foamed body with air permeable holes.