41results about How to "Good freezing resistance" patented technology

A creamy, milk-free oil-in-water emulsion (o/w emulsion) having an aqueous phase (a) which contains water, water-soluble carbohydrate, hydrocolloid and optionally further hydrophilic constituents, and an oil phase (b), which contains edible oil and/or edible fat, emulsifier and optionally further lipophilic constituents. The weight ratio of the aqueous phase to the oil phase (a:b) is in the range of 9:1 to 6:4. The creamy, milk-free o/w emulsion is used as a cream substitute in cake and pastry and dessert products.

A freezing-resistant yeast strain for bread fermentation and a breeding method thereof. The yeast strain provided by the invention is saccharomyces cerevisiae BT-N with an accession number of CGMCC No.7151. When other fermentation performance is not influenced, the strain has a cell freezing survival rate of 92.75% after being frozen at -20 DEG C for 21 days and has a relative fermentation capacity of 53.24%, which are increased by 57.39% and 24.78% respectively when compared with parent strains (who have a freezing survival rate is 35.36% and have a relative fermentation capacity of 28.46%). The strain is realized by knocking out of the neutral trehalase coding gene NTH1 of saccharomyces cerevisiae CICC31616, and overexpression of the trehalose-6-phosphate synthase coding gene TPS1 by selecting a strong promoter PGK1. The bred yeast strain has no special requirements for fermentation equipment or conditions, can be used by equipment and under conditions of common factories, and has wide application prospects.

The invention discloses a nanometer Al2O3-Ca<2+>-based metakaolin geopolymer road repairing material. A formula comprises nanometer Al2O3, Ca(OH)2, calcined kaolin, sodium silicate, sodium hydroxide and distilled water according to a mass ratio of 0.02 to 0.1 to 1 to 0.1 to 0.05 to 0.3. A metakaolin geopolymer has good interfacial bond property and excellent durability and heat resistance, can beused for well repairing cracks and pit slots on a road, and can improve the service life of the road repairing material. Tests show that by adding the Ca(OH)2 into the metakaolin geopolymer, the setting time of the road repairing material can be shortened, and by adding the Al2O3, the compressive strength of the road repairing material can be obviously increased. The 1d compressive strength of theroad repairing material can reach 31 MPa; the initial and final setting time of the road repairing material is respectively 60 min and 295 min; the mechanical property is excellent; and the road repairing material can replace cement as a new green building material to a certain extent, and has a good application prospect.

The invention discloses tunnel fireproof paint and a preparation method thereof. The tunnel fireproof paint comprises, by weight, 10-15 parts of high-alumina cement, 25-35 parts of Portland cement, 1-5 parts of expanded perlite, 1-5 parts of expanded, 1-5 parts of ultrafine powder, 1-5 parts of and 3-5 parts of auxiliary. Calcium carbonate superfine powder and mica superfine powder of 0.01-0.1um in grain size are added, so that bonding strength and anti-scouring performance of a coating are enhanced; a combination of acrylic emusion, the high-alumina cement and the Portland cement is added forchemical reaction, so that the formed surface coating is waterproof, the combination can permeate into a substrate to form crystals to check passing of water, and double waterproof effect is realized; structure is stabilized, thickness of the coating is lowered, and the tunnel fireproof paint has the advantages of thin coating, high bonding strength, high fireproofness, high waterproofness and environment friendliness.

The invention relates to a preparation method of an aluminum alloy surface film, and belongs to the technical field of surface films. The aluminum alloy surface film is prepared by adding cerium, corrosion of the external corrosion atmosphere to the surface of a matrix material and permeation of corrosion liquid to a conversion film are effectively blocked or delayed, an aluminum alloy matrix is protected against corrosion, and the corrosion resistance of aluminum alloy is improved. As a silicon dioxide ceramic film is prepared on the surface of the aluminum alloy, the corrosion resistance ofthe aluminum alloy is improved, the chemical properties of silicon dioxide are stable, and the etching-resistant capacity is high; and sol-gel method equipment adopted for preparing the silicon dioxide ceramic film is simple, the sintering temperature is low, large workpieces can be coated, good repeatability is achieved, the grain diameter of coating components is controllable, dispersion of themolecular level among the components can be achieved, the surface of the aluminum alloy can be effectively coated with the silicon dioxide ceramic film, the aluminum alloy matrix can be effectively protected against corrosion, and therefore the use time of the aluminum alloy is prolonged.

The invention discloses instant cold noodles and a making method, and mainly relates to the field of instant cold noodles and making methods. The raw materials of the instant cold noodles comprise flour paste and auxiliary materials in the weight ratio of (10-8):1, and the auxiliary materials comprise the following components in parts by weight: 200-400 parts of xanthan gum, 100-300 parts of gellan gum, 200-300 parts of guar gum, 100-300 parts of sodium polyacrylate, 100-200 parts of sodium tripolyphosphate, 200-300 parts of sodium hexametaphosphate, 50-150 parts of carboxymethyl cellulose, 1500-3000 parts of acetylated distarch adipate, 400-600 parts of soybean lecithin, 10-80 parts of potassium sorbate, 10-80 parts of nisin, 0.1-10 parts of natamycin, 10-100 parts of sodium dehydroacetate, 0.1-20 parts of azodicarbonamide, 500-1000 parts of polydimethylsiloxane emulsion and 1000-5000 parts of edible glycerol. The instant cold noodles and the making method have the beneficial effectsthat the standardized production of cold noodle production can be realized, the production period is shortened, a relatively long shelf life is obtained, and the frozen cold noodles can be eaten afterbeing heated.

The invention discloses a double-layer tear-resistant and refrigerant-resistant enameled aluminum round wire, which comprises a conductor, wherein the outer side of the conductor is provided with a double-layer composite paint film layer, the double-layer composite paint film layer includes variable frequency resistant resin paint and refrigerant-resistant polyamide-imide polyester paint, the outer side of the double-layer composite paint film layer is provided with a polyester-imide paint layer, and the outer layer of the polyester-imide paint layer is provided with a fluorine-containing organic polymer toughening polyamide-imide paint layer. The double-layer tear-resistant and refrigerant-resistant enameled aluminum round wire is provided with the fluorine-containing organic polymer toughening polyamide-imide paint layer, and the added fluorine-containing organic polymer itself has certain lubricity, so that the lubrication effect is good, and the probability of tearing and paint film damage during the winding of enameled wire products is reduced. Meanwhile, the wire is provided with the double-layer composite paint film layer, the utilization of the refrigerant-resistant polyamide-imide polyester paint enables the wire to be good in freezing resistance and solvent resistance, and the wire can be applicable to motor and electrical equipment products in high-temperature, overload and other severe environments.

The invention provides a preparation method of a puncture-resistant high-barrier co-extrusion film, relates to the technical field of packaging materials, and solves the technical problems that a PE film and a PP film in the prior art are low in puncture resistance, poor in tensile resistance and low-temperature resistance and prone to bag breaking and poor sealing. The co-extrusion film comprisesa composite layer, a first core layer, a second core layer and a heat sealing layer, and the co-extrusion film is formed by blow molding and co-extrusion of the composite layer, the first core layer,the second core layer and the heat sealing layer which are sequentially arranged. The co-extrusion film provided by the invention integrates a series of mechanical properties such as puncture resistance, stretching resistance, impact resistance, tear resistance and the like, and in addition, on the premise of ensuring the mechanical properties, the processability of a product and the use performance of a client need to be met at the same time.

The invention discloses an autoclaved sand-lime brick, which is made from 20-35% of oyster shell powder, 30-45% of construction waste, 20-35% of sand, 10-15% of lime, and 10-15% of chip powder. Pulverized and ground oyster shells (mussel shells) can be taken as a main material aggregate for producing the autoclaved sand-lime brick according to a reasonable ratio. According to the feature of the oyster shell powder, the quality (such as compression resistance and fracture resistance) of the brick is improved by no less than 30%, no pollution is caused during a grinding process, and the cementing material (such as cement, gypsum, and so on) is saved. Oyster shell incineration for ash production causes pollution due to coal burning, and what's more, oyster shells or mussel shells cannot be degraded, so that pollution generated in the coastal region troubles the government a lot and greatly affects livable city construction. If the production technology is implemented, people's livelihood and environment are improved, and the production technology conforms to the cyclic utilization policy greatly advocated by the government. Therefore, the purpose of wastes to valuables conversion and energy conservation and emission reduction are really achieved.

The invention discloses a polyester modified wire enamel, which is made of the following raw materials by weight parts(kg): 12-15 of amino resin, 12-14 of polyester resin (EL-1000H), 2-3 of ethylene bis stearamide, 6-9 of tetramethylethylenediamine, 12-16 of nylon 11, 1-2 of tungsten boride, 5-8 of 2-amino-2-methyl-1-propanol, 5-8 of attapulgite, 5-8 of diamino diphenyl ether, 10-12 of glycerol, 12-15 of ethylene glycol, 2-3 of straw ash, 2-3 of attapulgite, 30-35 of N-methylpyrrolidine, 1-2 of a promoter Na-22, 7-9 of an assistant, 90-100 of m, p-cresol, and 100-120 of dimethylbenzene. The preparation method provided by the invention is simple, and is low in cost. The prepared wire enamel has the advantages of good heat resistance and freeze resistance, and good wear resistance and oil resistance.