13 results about "Masterbatch" patented technology

The invention belongs to the field of agricultural films, and discloses a weeding mulching film and a preparation method and application thereof. The weeding mulching film comprises the following components in percentage by mass: 3-30% of herbicide masterbatch and 70-97% of PE (polyethylene) resin A; the herbicide masterbatch comprises the following components in percentage by mass: 25-75 %of PE resin B, 10-60% of herbicide and 2-15% of modifier. In the invention, the modifier is used for pretreating the herbicide; during processing, the modifier is molten and then covers the surface of the herbicide to form a herbicide core; the core shell structure taking the modifier as a shell can effectively protect the herbicide to reduce the loss of the herbicide caused by thermolysis at high temperature in a preparation process of the weeding masterbatch and mulching film. In the weeding mulching film provided by the invention, the herbicide masterbatch is uniformly dispersed, the release rate of the herbicide is reduced, and the efficacy time can be prolonged; after covering with the mulching film for 60 days, the weeding effect still can exceed 90%.

The invention relates to an antibacterial functional polypropylene fiber as well as a preparation method and an application thereof. The antibacterial functional polypropylene fiber comprises the following components in percentage by mass: 1%-10% of antibacterial chip masterbatch and 90%-99% of polypropylene chips, wherein the antibacterial chip masterbatch comprises the following components in percentage by mass: 1%-5% of nano silver, 1%-5% of nano titanium nitride, 0.1%-1% of compatilizer and the balance of polypropylene chips. The preparation method comprises the following steps of: uniformly mixing the antibacterial chip masterbatch with the polypropylene chips, and spinning according to the chemical fiber spinning process to prepare the antibacterial functional polypropylene fiber. The antibacterial functional polypropylene fiber has the advantages of good antibacterial effect and wide application.

The invention discloses a method for preparing a wollastonite toughened epoxy resin. The method comprises the following steps: (1) hydrolyzing a silane coupling agent in a mixed solution of absolute ethyl alcohol and deionized water, adding the solution into a flask, and adding wollastonite; (2) placing the flask in a water area, conducting reaction under electromagnetic stirring, performing suction filtration on the mixed solution, and drying the precipitate in a vacuum oven; (3) grinding the dried modified wollastonite in a planetary ball mill, thereby obtaining the modified wollastonite; (4) mixing the modified wollastonite and a bisphenol A epoxy resin 127, and grinding through a three-rod grinder for 3 hours, thereby obtaining a master batch with solid content, wherein the rod spacing of the grinder is 15pm, the grinding time is 2 hours, and a mass ratio of the modified wollastonite to the epoxy resin is 2:3; (5) uniformly mixing the epoxy resin, methyl tetrahydrophthalic anhydride and modified wollastonite master batch, and adding an initiator BDMA, a release agent silicone oil and an antifoaming agent BYK-530 for mixing, so that the stability of the modified wollastonite in the epoxy resin system is improved.

The invention provides a low-VOC content aromatic PC/ABS composite material and a preparation method thereof. The low-VOC content aromatic PC/ABS composite material provided by the invention comprisesthe following components in percent by weight: masterbatch A comprising 30-80% of PC resin, 10-60% of ABS resin, 2-10% of a compatibilizer and 1-10% of other additives, and masterbatch B comprising 50-99.9% of PC or ABS, 0.1-50% of aromatic liquid and 0.2-2% of diatomite. Through respective preparation of the masterbatch A and the masterbatch B, the masterbatch A is aromatized by baking, and generation of the odor of plastic is reduced by vacuumizing to remove small molecular harmful substances in a first conveying section during preparation of the masterbatch B; through addition of the diatomite into the masterbatch B, VOC substances, such as dimethylbenzene, which are not removed during processing can be effectively adsorbed; and through addition of an aromatic material, aroma is addedto the PC/ABS material, so that the low-VOC content aromatic PC/ABS composite material has a broad market prospect.

The invention belongs to the technical field of polymer materials, and specifically provides an ABS color masterbatch, which is composed of the following components by weight: 100-120 parts of a PE carrier; 2-20 parts of a toner; and 3-8 parts of a dispersant; Heat stabilizer 0.5~3 parts; flame retardant 0.1~10 parts. The invention has good coloring effect, simple production process, easy operation, low production cost, less environmental pollution, and broad application prospect, and solves the problems of unstable color and difficult control of color difference caused by poor thermal stability of the existing color masterbatch. .

The invention discloses a thermochromic radiation-proof masterbatch and belongs to the field of high polymer materials. The thermochromic radiation-proof masterbatch is prepared from the following components in parts by weight: 60 to 80 parts of graphene, 20 to 30 parts of boron carbide, 20 to 30 parts of methyl methacrylate-butadiene-styrene terpolymer, 6 to 8 parts of ethylene-propylene-diene monomer, 3 to 4 parts of butyl benzyl phthalate, 3 to 4 parts of phenyl salicylate, 30 to 40 parts of ethylene-octylene copolymer, 20 to 30 parts of chitosan, 10 to 20 parts of aerosil, 6 to 8 parts ofhexamethyl disiloxane, 30 to 40 parts of styrene, 5 to 6 parts of butyl acrylate, 5 to 6 parts of coupling agents, 8 to 12 parts of sodium metaaluminate, 1.5 to 2 parts of polyvinyl alcohol and 0.3 to0.8 part of benzenediol. According to the thermochromic radiation-proof masterbatch, the problem that an existing masterbatch cannot effectively block radiation is solved.

The invention relates to the field of plastic masterbatch, and discloses a graphene magnetic injection molding masterbatch for nylon electrical appliance plastics, and a preparation method thereof. The preparation process comprises: (1) adding sulfonated graphene, an iron salt and a ferrous salt to deionized water, and carrying out a hydrothermal reaction to obtain graphene-Fe3O4 nanometer composite magnetic micro-particles; (2) carrying out surface treatment on the composite magnetic micro-particles, adding nylon 6 and a dispersant, and carrying out melt extrusion to obtain a nylon 6 melt; and (3) mixing melt, polyamide-amine, adipic acid and hexanediamine, carrying out a condensation polymerization, carrying out pressure relief, drying, and crushing to prepare the graphene magnetic injection molding masterbatch. According to the present invention, the nanometer composite magnetic micro-particles are coated with the hyperbranched nylon 6 with characteristics of good compatibility withthe nylon injection molding matrix and high fluidity, such that the dispersibility of the magnetic powder in the nylon is substantially improved, the melt has good fluidity, the processing performance is excellent, and the method is suitable for popularization and application.

The invention discloses a method for improving the dispersibility of n-propyltriethoxysilane. The method comprises the following steps: uniformly mixing n-propyltriethoxysilane and an inorganic carrier which serve as raw materials to prepare pre-dispersed masterbatch, wherein the mixed ratio, based on weight, of the n-propyltriethoxysilane to the inorganic carrier is (30-70):(70-30); and doping the pre-dispersed masterbatch into concrete, mortar or cement paste to perform waterproofing treatment. By the method, the dispersibility of the n-propyltriethoxysilane in the concrete, mortar or cementpaste is simporved, so that any shearing surfaces of a test block have permanent water resistance.

The invention provides a formula of a thermal insulation board special for a refrigeration house. The formula comprises polystyrene foam particles, dispersible latex powder, natural latex, a flame retardant, a foaming agent, a foam stabilizer, nano silicon dioxide, calcium hydroxide, a plasticizer, mica powder, a film-forming agent and color masterbatch. The formula is prepared from the followingraw materials in parts by weight: 1000kg of the polystyrene foam particles, 8-12 kg of the dispersible latex powder, 8-12 kg of the natural latex, 18-22 kg of the flame retardant, 6-8 kg of the foaming agent, 16-20 kg of the foam stabilizer, 10-22 kg of the nano silicon dioxide, 20 kg of the calcium hydroxide, 4-6 kg of the plasticizer, 45-55 kg of the mica powder, 60-70 kg of the film-forming agent and 3 kg of the color masterbatch. The nano silicon dioxide is added in the foaming process, so that the micropore amount is increased, foam holes are closely formed in the surface, the heat conductivity coefficient is reduced, and the fireproof function of the insulation board is improved.

The invention relates to the technical field of a high-molecular material, and concretely relates to a polyester film. The polyester film is prepared by 60-80 parts of a polyester material, 20-30 parts of membrane-grade master batch, 2-9 parts of polysiloxane, 4-12 parts of a solvent, 2-4 parts of tritolyl phosphate, 1-3 parts of a curing agent, 1-2 parts of nuciferine, and 2-3 parts of flufenacet. The raw materials are uniformly mixed through a feed mixer, then a mixture is subjected to fusion extrusion through an extruder, the polyester film is prepared through vertical stretching and transverse stretching, and rolling package is carried out finally. Through reasonable designing of the components and a processing technology, the product has good transmittance and has excellent ultraviolet-resistant effect, and the product quality is good.

The invention discloses an application of chromium oxide in improvement of heat insulation and cooling performance of polymer master batch and polymer materials, and the prepared heat insulation and cooling polymer master batch and polymer materials not only have good color and color stability, but also improve the heat insulation and cooling performance of the polymer master batch and polymer materials. The polymer material is prepared from the following raw materials in parts by mass: 85-97.5 parts of film-grade polyolefin resin and 2.0-15 parts of polymer master batch, wherein the polymer master batch contains chromium oxide.

The invention relates to the technical field of polyamide films, in particular to a high-shrinkage biaxially oriented polyamide film as well as a preparation method and application thereof. The high-shrinkage biaxially oriented polyamide film comprises a first surface layer, a core layer and a second surface layer, the first surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the core layer comprises nylon, a nylon composition B and a nylon secondary material; the second surface layer comprises nylon, a nylon composition A and an anti-sticking nylon master batch; the nylon composition A and the nylon composition B are blends of bio-based nylon and copolymerized nylon. The high-shrinkage biaxially oriented polyamide film provided by the invention has the property of high shrinkage rate under the condition of meeting high tensile strength and excellent puncture resistance, is suitable for packaging products with high shrinkage rate requirements, and has a wide application prospect.