40results about How to "Performance synergy" patented technology

The invention relates to a ferulic acid shown in a general formula (I) and the application of derivatives thereof to pesticides. When used as novel anti-phytoviral agents, the derivatives can well inhibit tobacco mosaic viruses, pepper viruses, tomato viruses, sweet potato viruses, potato viruses, melon viruses, maize dwarf mosaic viruses and the like, and effectively prevent and control the virus diseases of various crops such as tobacco, peppers, tomatoes, melons, grains, vegetables, beans and the like, and are particularly suitable for preventing and controlling tobacco mosaic. Meanings of each group are shown in specifications.

The invention discloses high-strength frost-resistant concrete which comprises the following components in parts by weight: 150-300 parts of ordinary Portland cement, 200-450 parts of sea sand, 400-700 parts of gravel, 80-120 parts of water, 20-60 parts of silicon powder, 20-50 parts of natural zeolite, 10-20 parts of limestone powder, 2-5 parts of polyoxyethylene resin, 5-20 parts of polypropylene staple fiber, 3-15 parts of polyvinyl alcohol fiber, 0.5-1.2 parts of glycerol, 0.5-1.3 parts of dipropyl glycol, 5-10 parts of talcum powder, 0.3-1 part of corrosion inhibitor, 0.2-0.5 part of sodium benzoate, 0.2-0.5 part of polyacrylamide, 0.5-1.2 parts of hydroxyethyl cellulose ether, 5-8 parts of antifreezing agent and 3-6 parts of water reducer. The high-strength frost-resistant concrete disclosed by the invention has high strength, favorable frost resistance and long service life.

The invention discloses a high-strength wear-resistant flame-retardant modified natural rubber composite, made from: epoxidized natural rubber, butadiene rubber, zinc oxide, stearic acid, sulfur, dicumyl peroxide, accelerant TMTM, accelerant TMTD, accelerant DM, accelerant NOBS, white carbon black, organic montmorillonite, neodymium stearate, tricresyl phosphate, pentaerythritol, zinc borate, aluminum hydroxide, aramid staple fiber, a silane coupling agent, and an antiaging agent.The high-strength wear-resistant flame-retardant modified natural rubber composite provided herein is high in strength, good in wear resistance and heat resistance, good in flame retardancy, applicable to various fields, good in comprehensive performance and long in service life.

The invention discloses a special bait for fishing crucian. The special bait comprises the following raw materials in parts by weight: 20 to 50 parts of earthworm powder, 30 to 50 parts of blood worm powder, 20 to 40 parts of river shrimp powder, 20 to 50 parts of euphausiid shrimp powder, 10 to 30 parts of cyclop powder, 5 to 20 parts of scallop meat powder, 8 to 15 parts of field snail powder, 10 to 30 parts of oat flour, 10 to 25 parts of soybean meal, 4 to 10 parts of sweet potato powder, 5 to 20 parts of potato powder, 5 to 18 parts of wheat protein flour, 3 to 8 parts of mountain flour, 5 to 15 parts of clove, 0.5 to 1.5 parts of corn essence, 1 to 3 parts of maltose, 0.5 to 2 parts of sodium cyclamate, 0.4 to 2 parts of honey, 0.2 to 0.7 part of dimethyl-beta-propiothetin, 0.3 to 1 parts of betaine, and 2 to 7 parts of compound vitamins. The special bait for fishing the crucian has the advantages that the nutrients are complete, the price is low, the preparation is easy, the fish collecting speed is high, the usage amount is less, the easiness in dissolving in water is avoided, the fish retention time is long, and the fish luring and fishing effect is better.

The invention discloses high-density freezing-tolerant concrete. The high-density freezing-tolerant concrete comprises the following raw materials: ordinary Portland cement, sea sand, gravel, water, silicon powder, lithium slag powder, fly ash, iron tailing sand, polypropylene fiber, glass fiber, magnesium powder, hydrogen peroxide, ethylene diamine-tetramethyl phosphoric acid, sodium dodecylbenzene sulfonate, phosphoric butanetricarboxylic acid, iron oxide yellow, sodium thiosulfate, urea, sodium chloride, ethylene glycol and a water-reducing agent. The high-density freezing-tolerant concrete disclosed by the invention has the advantages of good freezing tolerance, high density and good durability.

The invention discloses a high-strength anti-aging ethylene propylene diene monomer rubber pipe, wherein a used ethylene propylene diene monomer material includes the raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 15-25 parts of polypropylene, 15-25 parts of an ethylene-octene block copolymer, 0.2-1 part of zinc oxide, 0.3-1.5 parts of stearic acid, 0.5-1.5 parts of bromo-octyl-phenolic curing resin, 0.2-1 part of benzoyl peroxide, 0.05-0.3 part of zinc methacrylate, 15-25 parts of modified nano silica, 5-10 parts of attapulgite, 5-10 parts of nano carbon fiber, 2-5 parts of nylon, 0.5-1.2 parts of an anti-aging agent MC, 0.2-1 part of an anti-aging agent 4020, 2-5 parts of zinc nitrilotiracetate, 0.2-0.9 part of an accelerator, 3-10 parts of a plasticizer, and 1.5-3 parts of a silane coupling agent. The high-strength anti-aging ethylene propylene diene monomer rubber pipe provided by the invention has high strength and good heat resistance and aging resistance.

The present invention provides a high temperature resistant inner layer material for a heat radiator water pipe and a preparation method thereof. The high temperature resistant inner layer material can satisfy cooling liquid aging resistance under the long time action of a high temperature medium, high resistance and no zinc in the material, and can be balanced in the aspects of compression permanent deformation, extension, physical and mechanical properties, low temperature performance, resistance and the like. The high temperature resistant inner layer material includes the following variouspreparation materials: 0-80 parts by weight of ethylene-propylene copolymer, 0-150 parts by weight of ethylene-propylene diene copolymer, 50-150 parts by weight of carbon black, 20-50 parts by weightof a plasticizer, 0-20 parts by weight of precipitation method white carbon black, 0-15 parts by weight of magnesium oxide, 0-2 parts by weight of stearic acid, 1.5 to 8 parts by weight of an antioxidant, 2.5 to 10 parts by weight of crosslinking agent BIBP, 1 to 3.5 parts by weight of crosslinking agent TMPTMA and 1-8 parts by weight of other auxiliaries.

The invention discloses corrosion-resistant and weatherproof paint specially used for a pop can. Raw materials of the corrosion-resistant and weatherproof paint specially used for the pop can are as follows in parts by weight: 100 parts of acrylic emulsion, 20-35 parts of epoxy resin emulsion, 2-10 parts of waterborne polyaniline solution, 3-8 parts of terpene resin, 10-25 parts of titanium dioxide, 10-20 parts of talcum powder, 15-20 parts of light calcium carbonate, 2-8 parts of precipitated barium sulphate, 2-10 parts of mica powder, 3-15 parts of zinc oxide, 2-10 parts of nanosilicon dioxide, 10-25 parts of modified graphene oxide, 1-5 parts of zinc phosphate, 3-10 parts of iron oxide red, 1-2 parts of a dispersing agent, 0.5-1.5 parts of a thickening agent, 3-10 parts of a coalescing agent, 0.5-2 parts of 2-amino-2-methyl-1-propanol and 20-50 parts of water. The corrosion-resistant and weatherproof paint specially used for the pop can, disclosed by the invention, has good weatherproof property and excellent corrosion resistance and also has certain antibacterial property.

The invention discloses an acrylic acid-polyaniline composite modified polyurethane coating which is prepared from modified polyurethane emulsion, waterborne acrylic emulsion, waterborne polyaniline emulsion, diphenylmethane diisocyanate, nano-zinc oxide, nano-zinc phosphate, aluminum oxide, wollastonite, boron nitride, barium sulfate, aluminum triphosphate, diethyl aluminum phosphinic acid, calcium chloride, N-methyl pyrrolidone, a defoaming agent, a dispersing agent, a wetting agent, a flatting agent, glycerol, 8-hydroxyquinoline, epoxy resin, a silane coupling agent, polyethylene wax and water. The acrylic acid-polyaniline composite modified polyurethane coating is good in water resistance and corrosion resistance, excellent in heat resistance and weather resistance, high in strength, high in adhesive force with a base material and long in service life, and has the certain fire resistance.

The invention relates to an anti-dazzle glass etching liquid and a preparation method thereof. The anti-dazzle glass etching liquid comprises the following raw materials in percentage by weight: 8.2-9.6% of H2SO4 (sulfate), 1.8-2.2% of Na2SiF6 (sodium fluosilicate), 4.5-5.5% of ZnCl (zinc chloride), 21.5-22.5% of NH4HF2 (ammonium bifluoride), 3.6-4.2% of CaF (calcium fluoride), 3.6-4.2% of (NH4)2SO4 (ammonium sulfate), 2.1-2.5% of BaSO4 (barium sulfate), 1.6-1.8% of viscosity adjuster, 1.8-2.2% of dodecyl glucoside, and 45-55% of water. The anti-dazzle glass etching liquid has the advantages that the defects of high cost and instability of the existing etching liquid are overcome; the cost is low, the surface particles of the product are fine, and the transmittance is high.

The invention discloses a wearable steel ball with high toughness and strength, of which the chemical composition comprises by weight: 0.35-0.47% of C, 0.25-0.4% of Si, 2-3% of Mn, 0.03-0.04% of Cu, 1-1.5% of Cr, 0.03-0.05% of B, 0.03-0.06% of Mg, 0.01-0.03% of Ti, 0.02-0.04% of Zr, 0.01-0.03% of Nb, 0.05-0.1% of V, 0.05-0.2% of Mo, 0.1-0.25% of Ni, 0.015-0.018% of Ca+Ba, 0.01-0.02% of S, 0.01-0.02% of P and the balance Fe and inevitable impurities. The invention also provides a preparation method of the wearable steel ball, the process is simple, and the wearable steel ball formed is high in toughness, strength and wear resistance.

The invention discloses a marine anti-fouling coating. Raw materials of the coating comprise, by weight, 20-35 parts of a polydimethylsiloxane elastomer, 40-60 parts of zinc acrylate resin, 10-25 parts of teflon, 3-10 parts of a vinylidene difluoride-hexafluoropropylene copolymer, 1-5 parts of nanometer acicular structured manganese vanadate, 10-25 parts of carbon nanotube, 5-10 parts of silicon nitride, 1-5 parts of nano-silica, 3-10 parts of nano-zinc oxide, 2-8 parts of montmorillonite, 3-10 parts of fiber fluff, 2-10 parts of paprika, 1-5 parts of ground pepper, 0.5-2 parts of PTPB, 0.2-1.5 parts of 4,5-dichloro-2-n-octyl-3-isothiazolinone, 10-30 parts of ethanol, 2-10 parts of butyl cellosolve, 5-10 parts of water, 1-3 parts of a silane coupling agent and 2-5 parts of an auxiliary agent. The marine anti-fouling coating provided by the invention has high strength, good antifouling effect and excellent durability.

The invention provides anticorrosion paint which comprises, by weight, 33-35 parts of epoxy resin, 12-15 parts of diluting agents, 0.5-1 part of dispersing agents, 10-12 parts of toughening agents, 35-38 parts of mica iron oxide, 1-2 parts of talcum powder, 4-5 parts of titanium dioxide, 2.5-3 parts of fumed silica and 12-13.2 parts of curing agents. According to the anticorrosion paint, proportion of various components is adjusted, so that compatibility of various raw materials is good, performances are synergistically facilitated, the paint is good in corrosion resistance and stability and long in service life.

The invention discloses a highly flame-retardant aging-resistant fluorine rubber cable sheath material which contains the following raw materials: fluorine rubber, acrylic rubber, ethylene-propylene-diene monomer, stearic acid, magnesium oxide, dicumyl peroxide, triallyl isocyanurate, bisphenol AF, benzyl triphenyl phosphorous chloride, cerium oxide, white carbon black, fibrous sepiolite, basic magnesium sulfate whisker, zinc sulfate, desulfurized fly ash, barium sulfate, ferric oxide, a composite flame retardant and an anti-aging agent. The composite flame retardant is a mixture of caged pentaerythritol phosphate, expansible graphite, zinc borate, tea saponin and a phosphorus nitrogen flame retardant. The highly flame-retardant aging-resistant fluorine rubber cable sheath material provided by the invention is excellent in flame-retardant property, good in heat resistance and aging resistance, and small in permanent deformation.

The invention discloses a corrosion-resistant water-based ultrathin fireproof coating for a steel structure and a preparation method thereof. The corrosion-resistant water-based ultrathin fireproof coating is prepared from, by weight parts, 5-10 parts of styrene-acrylic emulsion, 10-25 parts of acrylic acid emulsion, 10-15 parts of polyborosiloxane flame retardant, 30-55 parts of intumescent flame retardant, 3-5 parts of preservative, 1-3 parts of auxiliaries and 15-30 parts of water. The corrosion-resistant water-based ultrathin fireproof coating for the steel structure is good in weather resistance and aging resistance, excellent in corrosion resistance, high in force of adhesion to steel and good in caking property and has effects of long-acting fire prevention, long-term weather resistance and aging resistance.

The invention discloses a polypropylene packaging material containing modified graphene. The polypropylene packaging material is prepared from the following raw materials in parts by weight: 70-85 parts of homo-polypropylene, 2-9 parts of propylene-ethylene copolymer, 5-11 parts of ethylene-1-hexene copolymer, 1-5 parts of calcium phosphate, 2-9 parts of aluminum hydroxide, 2-11 parts of organic silicon microspheres, 2-8 parts of modified halloysite, 5-15 parts of modified graphene oxide, 3-8 parts of nano titanium dioxide, 1-3 parts of zinc pyrithione, 1-5 parts of meso-porous silicon, 4-12 parts of bamboo fiber, 0.5-2 parts of epoxidized soybean oil, 0.3-2 parts of dibenzoyl hydrazine, 2-8 parts of compound plant extract, 3-11 parts of ammonium polyphosphate, 0.1-0.32 part of antioxidantand 0.1-0.35 part of calcium stearate. The polypropylene packaging material containing modified graphene disclosed by the invention has the advantages of high impact toughness, good anti-stain and bactericidal performance and excellent flame retardance.

The invention relates to a phenanthroindolizidine alkaloid quaternary ammonium salt derivative and preparation and plant virus resisting application thereof. See the specification for the meaning of groups in the formula. The phenanthroindolizidine alkaloid quaternary ammonium salt derivative has good light stability, heat stability and water solubility, shows excellent plant virus resisting activity and can well restrain tobacco mosaic viruses (TMV).

The invention discloses a novel modified natural rubber composition. The novel modified natural rubber composition comprises modified natural rubber, epoxidized butadiene-acrylonitrile rubber, nano calcium carbonate, precipitated white carbon black, carbon nano tube, stearic acid, sulphur, zinc oxide, organosilicone peroxide, dicumyl peroxide, polyvinyl alcohol, lanthanum stearate, anti-aging agent RD, anti-aging agent MB, anti-aging agent 4020, zinc dimethyldithiocarbamate, cerium glutamic acid dithiocarbamate, accelerant NS, and a plasticizer. The novel modified natural rubber composition is high in strength, oil resistance, and aging resistance; and service life of rubber products prepared from the novel modified natural rubber composition is long.

The invention discloses a high-flame-retardant and high-strength natural rubber composite material which comprises, by weight, 60-71 parts of natural rubber, 13-25 parts of high-trans-1, 4-butadiene-isoprene copolymer rubber, 8-15 parts of ethylene-propylene-diene monomer rubber, 2-8 parts of Maleic anhydride grafted natural rubber, 2-3 parts of zinc oxide, 1-2 parts of stearic acid, 0.1-0.8 partsof benzoyl peroxide, 0.2-1.3 parts of sulfur, 5-11 parts of medium super abrasion furnace black, 3-8 parts of fast extrusion furnace black, 2-8 parts of short fibers, 4-11 parts of nano-crystalline iron oxide, 4-12 parts of organically modified montmorillonite, 5-13 parts of mesoporous molecular sieves, 1-5 parts of calcium carbonate superfine powder, 2-3 parts of chromium trioxide, 1-3 parts ofantimony trioxide, 1-4 parts of anti-aging agents, 0.1-1 part of accelerants and 8-15 parts of phosphorous nitrogen silicon flame retardants. The high-flame-retardant and high-strength natural rubbercomposite material is high in strength and good in flame resistance and aging resistance.

The invention discloses special waterborne fire-retardant coating for tunnels. The special waterborne fire-retardant coating is made from vinyl chloride-vinylidene chloride copolymer, chlorinated polyether resin, waterborne silicone acrylic emulsion, waterborne epoxy resin, polytetrafluoroethylene micropowder, polyvinylidene fluoride, oxidized starch, aluminum triphosphate, pentaerythritol, melamine, zinc borate, expanded perlite, zinc phosphate, phosphorus-nitrogen fire retardant, ceramic cenospheres, expanded vermiculite, bisphenol A-bi(diphenyl phosphate), antifoaming agents, antibacterial agents, solubilizer, epoxy group containing polysiloxane, fluorocarbon surfactant and deionized water. The special waterborne fire-retardant coating for the tunnels has the advantages of high adhesive power, good cohesiveness, excellent moisture resistance, mold resistance, thermal resistance and flame retardancy and applicability to fire-retardant surface coating of highway tunnels and railway tunnels.

The invention provides a latex material modified by a composite material composed of melanin and graphene, a preparation method and application thereof. The latex material modified by a composite material composed of melanin and graphene comprises the following components by weight: 60-100 parts of latex, 1-6 parts of the composite material composed of melanin and graphene, 0.1-0.5 part of a coupling agent, 0.2-1 part of a stabilizer and 0.1-0.8 part of a surfactant, wherein the mass ratio of melanin to graphene in the composite material composed of melanin and graphene is 1:1-10. According tothe modified latex material disclosed by the invention, the latex is modified by the melanin and the graphene material, and the modified latex material has excellent mechanical properties and excellent tensile resistance and resilience; and meanwhile, the strength, tear resistance, mite prevention, bacteriostasis, far infrared, ultraviolet resistance, oxidation resistance and other properties ofthe material are enhanced. Moreover, the preparation method is simple in process and easy for large-scale production.

The present invention discloses an antibacterial polyvinylidene fluoride powder coating. The powder coating comprises the following raw materials: polyvinylidene fluoride, polymethylmethacrylate, polyurethane, modified nanometer titanium dioxide, nano zinc oxide, carbon nanotubes, titanium dioxide, benzoin, an amino silane coupling agent, zinc isooctanoate, a flow agent, propylene glycol methyl ether acetate, isophorone, dimethyl phthalate and amino resin; and the modified nano titanium dioxide is prepared according to the following process: dispersing nano titanium dioxide in water; dropwise adding chloroplatinic acid solution and silver nitrate solution; stirring after dropwise addition is finished; feeding argon; reacting under a 550-600W high-pressure mercury lamp; and after the reaction was completed, performing centrifugation, washing and drying to obtain the modified nano titanium dioxide. The antibacterial polyvinylidene fluoride powder coating provided by the present invention is good in weather resistance, excellent in antibacterial property and contamination resistance, and long in service life.

The invention discloses a low-temperature-resistant low-compressive deformation seal gasket material for intake manifolds and a preparation method thereof. The material comprises, by weight, 60-70% of raw fluororubber, 5-15% of calcium silicate, 5-20% of diatomite, 3-15% of barium sulfate, 3-10% of polytetrafluoroethylene powder, 2-5% of cerium oxide, 2.4-4.5% of calcium hydroxide, 1.5-2.8% of magnesium oxide, 0.5-2% of lubricant, 0.6-1.4% of 2, 2-bis(4-hydroxyphenyl)hexafluoropropane, 0.3-0.7% of benzyl triphenyl phosphorus chloride, and 0.5-2% of auxiliary material. The low-temperature-resistant low-compressive deformation seal gasket material for intake manifolds and the preparation method thereof have the advantages that the preparation method is simple and easy to operate, the material has good processability, low compression set and excellent low temperature resistance, and an intake manifold seal gasket made of the material has good comprehensive properties and long service life.

The invention describes a mixed component material. The mixed component material comprises a base layer material particle component and an outer layer material particle component, and has a layered structure. The base layer material particle component is one of the following components or a composite component oxide of multiple following components: cerium, praseodymium, lanthanum and other rare earth metal oxides, zirconium-containing oxide, aluminum oxide, alkaline earth metal oxide, alkaline metal oxide, titanium oxide, silicon oxide and transition metal oxide. The outer layer material particle component has at least one layer, and is one of the following components or a composite component oxide of multiple following components: cerium, praseodymium, lanthanum and other rare earth metal oxides, zirconium oxide, alkaline earth metal oxide, alkaline metal oxide, titanium oxide, silicon oxide, and transition metal oxide. The mixed component material provided by the invention has the advantages of high oxygen storage capacity and good aging resistance, and can be used as a functional catalytic material for purification of exhaust contaminants.

The invention discloses a bactericidal composition containing terpene alcohol and trifloxystrobin. Active components in the bactericidal composition at least comprise terpene alcohol and trifloxystrobin, wherein the weight ratio of terpene alcohol to trifloxystrobin is (1:30)-(10:1), and preferably (1:10)-(5:1). The bactericidal composition disclosed by the invention has a certain synergistic effect on prevention and treatment of crop diseases after compounding; the bactericidal composition disclosed by the invention can be processed into any dosage form suitable for being used in agriculturalproduction by supplementing with common auxiliary components for pesticide preparation processing, including but not limited to one of missible oil, wettable powder, water dispersible granules, a suspending agent, micro-emulsion, aqueous emulsion and a micro-capsule suspending agent; and the bactericidal composition disclosed by the invention is safe to crops, has good prevention and treatment effects, and is worthy of being popularized and applied.

The invention relates to biogas-residue-containing organic fertilizer for peach trees and a preparation method thereof. The biogas-residue-containing organic fertilizer is prepared by, by mass, 100 parts of straw, 5-15 parts of coal ash, 2-5 parts of trace nutrient element, 5-10 parts of urea, 3-10 parts of borax, 10-20 parts of monoammonium phosphate, 20-30 parts of humic acid, 3-5 parts of rhizoma polygonati decoction dregs, 0.2-0.5 part of ammonium molybdate, 1-2 parts of ferrous sulfate, 10-20 parts of fermented chicken manure and 100-200 parts of biogas residue. After the biogas-residue-containing organic fertilizer is applied to the peach trees, high peach yield is achieved, and peach tree cracks cannot appear easily.

The invention relates to the technical field of cables, and discloses an efficient flame-retardant wear-resistant subway cable and a preparation method thereof. The efficient flame-retardant wear-resistant subway cable comprises the following raw materials in parts by weight: 20-40 parts of silicone rubber, 5-15 parts of ethylene propylene diene monomer, 3-8 parts of butyl rubber, 3-10 parts of polyurethane, 3-4 parts of acetyl trioctyl citrate, 10-20 parts of modified aluminum oxide, 10-15 parts of kaolin, 10-15 parts of micro-encapsulation red phosphorus, 5-10 parts of zinc borate, 2-6 partsof 3-aminopropyltriethoxysilane, 1-2 parts of an accelerant, 2-4 parts of a Ca / Zn composite stabilizer, 1-3 parts of an anti-ageing agent, 3-7 parts of silicone powder and a cable body. The modifiedaluminum oxide is dispersed uniformly in a cable material, the properties are synergistic, the strength and wear resistance of the cable material are further improved, the kaolin and the silicone powder cooperate with each other, and the high temperature resistance, impact resistance, wear resistance and machinability of the efficient flame-retardant wear-resistant subway cable can be improved further.

The invention discloses corrosion-resistant and weatherproof paint specially used for a pop can. Raw materials of the corrosion-resistant and weatherproof paint specially used for the pop can are as follows in parts by weight: 100 parts of acrylic emulsion, 20-35 parts of epoxy resin emulsion, 2-10 parts of waterborne polyaniline solution, 3-8 parts of terpene resin, 10-25 parts of titanium dioxide, 10-20 parts of talcum powder, 15-20 parts of light calcium carbonate, 2-8 parts of precipitated barium sulphate, 2-10 parts of mica powder, 3-15 parts of zinc oxide, 2-10 parts of nanosilicon dioxide, 10-25 parts of modified graphene oxide, 1-5 parts of zinc phosphate, 3-10 parts of iron oxide red, 1-2 parts of a dispersing agent, 0.5-1.5 parts of a thickening agent, 3-10 parts of a coalescing agent, 0.5-2 parts of 2-amino-2-methyl-1-propanol and 20-50 parts of water. The corrosion-resistant and weatherproof paint specially used for the pop can, disclosed by the invention, has good weatherproof property and excellent corrosion resistance and also has certain antibacterial property.

Anti-plant virus agent of ferulic acid, its derivatives, and the use thereof are provided. The structure of the ferulic acid is showed as formula (I). As a new anti-plant virus agent, the ferulic acid and its derivatives can well inhibit tobacco mosaic virus, pepper virus, tomato virus, sweet potato virus, potato virus, melon virus and maize dwarf mosaic virus and so on, and can effectively control viral diseases of many kinds of crops like tobacco, pepper, tomato, melon, foodstuff, vegetable, bean, etc., especially tobacco mosaic disease.

The present invention provides a herbicidal composition comprising mezafen, propenofen and clofensulfen, the active ingredient comprises memetrafen, mefenflufen and meclosulam, and pyrazole The mass ratio of grass amine, fenflufen and chlorsulfame is 1‑30:0.1‑10:0.1‑10. The herbicidal combination of the invention can be used for controlling annual weeds in rapeseed fields, and has significant synergistic effect.