62results about How to "Act as a "plasticizer"" patented technology

The invention provides a fluororubber rubber compound and a preparation method thereof. The fluororubber rubber compound is prepared by mixing binary intermediate-low monney sectional fluororubber rubber, reinforcing system (MT N990 carbon black and inorganic filler), acid absorbing system (active magnesium oxide and superfine calcium hydroxide), vulcanizing system (benzyl triphenyl phosphorus chloride and bisphenol AF), releasing agent (alfux and/or carnauba wax), and multifunctional bisphenol vulcanizing composite assistant vulcanizing agent L; the obtained fluororubber rubber compound has high stretching strength, and high extending rate, increases the scorching time by improving the liquidity of the rubber, therefore, high adaptability of the rubber to different manufacture technical environments and the vulcanizing environments can be ensured, the safety in vulcanizing can be improved, and as a result, the rejection rate of the products can be reduced. The fluororubber rubber compound provided by the invention is applicable to industries such as aerospace, aviation, car, metallurgy, petrochemical industry and electron and the like.

The invention relates to a coating composite material, in particular to a coating composite material with high heat insulation and high peeling strength taking polyvinyl chloride and polyester fiber base cloth as main base materials and a preparation method of the material, and belongs to the technical field of new materials. The composite material comprises a polyester fiber fabric base materiallayer, wherein a coating surface layer and a back layer are respectively arranged on both sides of the base material layer; the back layer comprises a flame-retardant PVC primer layer and a flame-retardant PVC heat insulation layer from inside to outside; and the coating surface layer comprises a flame-retardant PVC primer layer, a flame-retardant PVC heat insulation layer, a PVC high reflection layer and an infrared reflection heat insulation transparent layer from inside to outside, and is prepared by adopting a specific preparation method. The coating composite material has good heat insulation, high peeling strength and wicking resistance characteristics, and has excellent flame resistance, weather resistance and ultraviolet resistance.

The invention relates to the technical field of biomaterials, particularly to a bio-based nylon composite PLA material and a preparation method thereof, wherein the raw materials comprise, by weight,10-20 parts of a filler, 40-60 parts of polylactic acid, 1-5 parts of an antioxidant1010, 0.5-2 parts of a plasticizer, 4-8 parts of a compatibilizer, 4-8 parts of a coupling agent, 40-60 parts of a bio-based nylon, 1-5 parts of a polyolefin elastomer, 1-3 parts of modified glass fiber, and 0.01-1 part of glycidyl methacrylate. According to the present invention, the mechanical strength and the size stability of the PLA material are improved by filling the modified glass fiber with the bio-based nylon and the polylactic acid while the bio-based nylon and polylactic acid compounding process isfilled and grafted by using the filler and the high-toughness grafting agent glycidyl methacrylate, such that the bio-based nylon composite PLA material meets the performance requirements of engineering plastics and has good degradability.

The invention provides a preparation method of a lithium ion phosphate power battery cathode plate. The method comprises the following steps: (1) adding an adhesive for preparing a cathode material to a solvent, and stirring and fully dissolving the adhesive to prepare a solution; (2) adding a conductive agent, an additive and lithium ion phosphate to the solution prepared in the step (1) respectively, and stirring the conductive agent, the additive and the lithium ion phosphate evenly at a high speed to prepare cathode slurry; (3) coating a cathode current collector with the slurry prepared in the step (2) to form a cathode material layer; and (4) coating the cathode material layer with a coating layer for improving the safety of the cathode plate, and carrying out drying, rolling and slitting to prepare the lithium-ion battery cathode plate. The additive is prepared from the following raw materials in percentage by weight: 1%-20% of ethanol, 10%-30% of N-methylpyrrolidone and 50%-85% of ethylene carbonate. The preparation method can obviously improve dusting of the lithium ion phosphate cathode plate and improves gram volume development of the lithium iron phosphate; the cost is low; and the operation is simple and easy.

The present invention discloses an offset printing black ink formula, wherein the materials in the formula comprise resin oil, colloid oil, a long oil alkyd resin, phthalocyanine blue B, a Reflex Blue slurry, high pigment carbon black, furnace pigment carbon black, poly ethylene microcrystalline wax, polytetrafluoroethylene microcrystalline wax, cobalt isooctanoate, manganese isooctanoate, zirconium isooctanoate, butyraldehyde oxime, and high boiling point kerosene. According to the present invention, the phthalocyanine blue B, the Reflex Blue slurry, the high pigment carbon black and the furnace pigment carbon black are adopted as the ink pigment so as to provide the coloration effect; the resin oil, the colloid oil and the long oil alkyd resin are adopted as the connection material so as to disperse the pigment; the poly ethylene microcrystalline wax and the polytetrafluoroethylene microcrystalline wax are the ink filler and can be filled in the ink so as to reduce the cost; and the remaining cobalt isooctanoate, the manganese isooctanoate, the zirconium isooctanoate, the butyraldehyde oxime and the high boiling point kerosene are the additional material of the ink.

The invention discloses a lithium battery diaphragm preparation method based on a mixed solvent multi-stage volatilization mechanism. The preparation method comprises the steps of performing heating dissolution on a certain mass of PVDF-HFP in a certain mass of first solvent, performing normal temperature dissolution on a certain mass of PVDF-HFP in a certain mass of first solvent, enabling the above two parts to be mixed uniformly and then adding a certain mass of second solvent, performing uniform mixing and than coating a base material, and carrying out drying to obtain the lithium batterydiaphragm. According to the preparation method, the PVDF-HFP is added into the first solvent in two times to form a cross-linked network structure with link; then the second solvent is added to dissolve a part of the link, and the dissolved partial link forms the cross-linked network structure to wind around the linkage; after drying, the first solvent is volatilized to form main lithium ion transmission holes; and the second solvent is volatilized to form holes in the cross-linked network structure around the link, so that the surrounding strength of the link of the lithium battery thin filmis reinforced, and the strength of the lithium battery diaphragm is further reinforced.

The invention discloses a preparation method of cellulosic fibers. The preparation method includes the following steps that 1, cellulose pulp is mixed with an NMMO water solution with the mass concentration of 60%-85%, preferably 70%-76% to obtain a uniform mixture; 2, the obtained uniform mixture is subjected to dehydration swelling and dissolution defoaming to obtain a cellulose spinning solution; 3, the obtained cellulose spinning solution is filtered and subjected to heat exchange and then enters a spinning machine, after the cellulose spinning solution is extruded through a spinning assembly and air-cooled, the cellulose spinning solution enters a solidification system and is solidified in an NMMO solidification bath with the mass concentration larger than 50% and smaller than 72%, and nascent fibers are obtained; 4, the obtained nascent fibers are washed to obtain cellosilk bundles, and then the cellulosic fibers are obtained through subsequent section treatment. Equipment investment can be greatly reduced, the process is simplified, energy consumption and industrialization cost are reduced, safety production is promoted, the homogeneity and mechanical performance of the fibers are improved, and therefore the preparation method is more suitable for efficient low-consumption industrial production.

The invention belongs to the technical field of building materials, and particularly relates to a high-anti-permeability cement-based repair material for tunnel engineering. The repair material consists of portland cement, coal ash, silica fume, steel slag powder, rock powder, tailing sand, quartz sand, attapulgite, acrylate emulsion, cellulose ether, polyacrylamide, PVA fibers, PET fibers, a polycarboxylic acid water reducer and a defoaming agent. The repair material has the characteristics of easy construction, good working performance, good water retention performance, high compressive strength, high anti-permeability level, high toughness and adhesion, excellent durability and the like; and the repair material can be suitable for construction initial protection or engineering later maintenance and repair of lining concrete in the tunnel engineering.

The invention relates to a low-odor high-weld-line-strength flame-retardant PC/ABS (polycarbonate/acrylonitrile butadiene styrene) composite which comprises PC, a phosphorus-containing flame retardant, ABS, PMMA (polymethyl methacrylate) and an impact resistant modifier. The low-odor high-weld-line-strength flame-retardant PC/ABS composite is prepared by means of preparing the ABS, PMMA and impact resistant modifier into a one-step material YBL-ABS through physical extrusion prior to mixing the one-step material YBL-ABS with waste materials. The composite has the advantages that the one-step material used is simple and easy to obtain, the preparation process is simple, cost is low, small molecules in material molecules can be removed effectively, meanwhile, weld line strength of the material is improved, and mechanical properties of the material can be improved significantly; the material can be applied to industries such as automobiles, refrigerators and televisions.

The invention relates to a moisture-curable anaerobic adhesive and a preparation method thereof. According to the present invention, when a metal material is adhered, the closed anoxic environment ofthe adhered surface can cause a chemical reaction between the isocyanate group-containing monomer pr prepolymer in an anaerobic adhesive and the polar group on the surface of the metal substrate to generate bridging effect so as to improve the initial adhesion of the anaerobic adhesive to the metal substrate, and the(meth)acryloyloxy group contained in the anaerobic adhesive is subjected to rapidradical polymerization, and the monomer or prepolymer containing more than or equal to 2 isocyanate groups in the system can provide plasticizing effect to maintain the adhesion of the system at a high level so as to achieve the effects of curing and firm adhesion, such that the bonding strength of the anaerobic adhesive is greatly improved; and a small amount of the isocyanate group contained inthe moisture-curable anaerobic adhesive overflowing from the seam of the adhered surface chemically reacts with the water in the air to dry the surface, such that the defect of the contamination on the metal material is avoided while the excess curing glue can be conveniently cut off by using a cutter blade.

The invention provides polylactic acid plastic containing a composite flame retardant. The polylactic acid plastic is prepared from the following raw materials in parts by weight: 100 to 120 parts of polylactic acid, 10 to 20 parts of plant fiber, 1 to 3 parts of pentaerythritol, 1 to 2 parts of starch, 10 to 15 parts of ammonium polyphosphate, 3 to 5 parts of melamine, 1 to 3 parts of modified white carbon black, 4 to 6 parts of ethylene oxide, 0.2 to 0.8 part of sorbitol, 1 to 2 parts of talcum powder, 1 to 2 parts of octadecanamide, and 0.1 to 0.4 part of an antioxidant. The polylactic acid plastic has the advantages of being environmentally friendly and high in flame retardant level; and meanwhile the influence of addition of the flame retardant on the physical and mechanical properties of the polylactic acid body material is reduced to the maximum extent.

The invention belongs to the technical field of thermoplastic polyurethane, and particularly relates to non-polar modified TPU for shoe materials and a preparation method of the non-polar modified TPU. The TPU is prepared from the following raw materials in parts by weight: 20-40 parts of diisocyanate, 20-30 parts of dihydric alcohol with a non-polar side chain, 30-50 parts of polyester polyol, 5-10 parts of a chain extender, 0.1-0.5 parts of an antioxidant and 0.5-1 part of a catalyst. According to the invention, dimer alcohol with a non-polar side chain is introduced, dimer alcohol and polyester polyol are used as soft segments to react with diisocyanate and a small molecular chain extender, meanwhile, a fast forming process of premixing dimer alcohol, polyester polyol and a chain extender is used, the prepared TPU not only has the advantages of excellent wear resistance, good mechanical strength and excellent oil resistance and oxidation resistance of the urethane elastomer, but also has excellent hydrolytic stability, low-temperature performance, processing fluidity and elasticity, and meanwhile, can avoid the problems of precipitation, odor and the like caused by addition of aplasticizer.

The invention discloses a preparation method of a novel rubber additive. The novel rubber additive is prepared from the following components in parts by weight: 20-30 parts of vinyl resin, 18-25 parts of unsaturated polyester resin, 12-16 parts of unsaturated fatty acid, 1.5-2 parts of zinc oxide and 6-9 parts of trifluoropropyl methyl dichlorosilane. The preparation method comprises the steps of adding unsaturated fatty acid into a container, heating to the temperature of 80-90 DEG C for melting, stirring, then adding zinc oxide, raising the temperature to 120-130 DEG C, and reacting for 2-3 hours to obtain viscous liquid; and adding the viscous liquid obtained in the step S1 into vinyl resin, unsaturated polyester resin and trifluoropropyl methyl dichlorosilane, raising the temperature to 110-115 DEG C, and carrying out melt blending for 3-5 hours to obtain the additive.

The invention discloses a compound sound insulation material and a preparation method thereof. The compound sound insulation material contains the following materials by weight percent: 40% of vinyl chloride acetate resin, 10-20% of low-density polyethylene, 20-30% of methyl vinyl silicone rubber, 5-10% of a high molecular compatilizer, 2-3% of a diluent, 1-5% of superfine fiber, and 1-2% of an antioxidant. The preparation method comprises the following steps: S1, weighing and preparing materials: weighing the materials according to weight percentage and marking for storage; S2, feeding and blending; S3, plastifying; and S4, performing extrusion molding. According to the invention, due to the setting of components including vinyl chloride acetate resin, low-density polyethylene, methyl vinyl silicone rubber, high molecular compatilizer, diluent, superfine fiber and antioxidant, so that the sound insulation effect of the compound sound insulation material is improved; and due to the setting of preparation procedures of weighing and preparing materials, feeding and blending, plastifying and performing extrusion molding. Therefore, the quality of the sound insulation material is promoted, and further the market competitiveness of the product is promoted.

The invention discloses a process for manufacturing a rubber floor tile. Raw materials include polyoxypropylene polyether glycol, toluene diisocyanate and waste rubber particles. A prepolymer method is adopted in an isocyanate production process. The physical and mechanical performances of a material prepared by using a one-step method are poorer than those of the prepolymer method, and particularly the tensile strength difference is relatively high. The reasons are as follows: polyether glycol is only simply mixed with TDI in the one-step method, a prepolymerization process is omitted, and part of free TDI does not react with polyether glycol, but directly reacts with water or active hydrogen on the surfaces of rubber particles, so that polyether glycol is relatively surplus to play a role of a plasticizer, macromolecules cannot be formed, and the adhesiveness is poor. By using the prepolymer method, polyether glycol reacts with TDI to generate a prepolymer containing a -NCO group and reacts with water and active groups on the surfaces of the rubber particles to form macromolecules, so that the adhesiveness is good, and the tensile strength is remarkably enhanced.

The invention discloses tread rubber for the tire of a dune buggy. The rubber comprises the following components in parts by weight: 10-15 parts of natural rubber, 8-12 parts of synthetic rubber, 35-45 parts of reclaimed rubber, 0.6-1 parts of sulfur, 0.6-1 parts of zinc oxide, 0.2-0.4 parts of stearic acid, 0.4-0.6 parts of an accelerant, 2-3 parts of carbon black, 2-3 parts of a reinforcing agent and 1.5-2 parts of an anti-aging agent. The reclaimed rubber is prepared by the following method: a, crushing waste tires to obtain waste rubber powder; b, adding a softener and a regenerant into the waste rubber powder, and performing banburying for 10-15 min at the temperature of 110-130 DEG C; and adding the reinforcing agent and the plasticizer to mix for 10-15 minutes at the temperature of50-60 DEG C, and performing cooling to obtain the reclaimed rubber. The tread rubber provided by the invention has the advantages of low cost, good wear resistance and good tear resistance.