4results about How to "Facilitate blending" patented technology

A rubber composite material based on high-butadiene-content iron-based butadiene-pentadiene rubber, and its preparation method and application. The present invention belongs to the field of rubber materials and their preparation. The purpose of the present invention is to solve the technical problem that the existing modified composite rubber cannot balance the "devil's triangle" performance of rubber. The material of the present invention is prepared from olefin rubber, reinforcing filler, plasticizer, zinc oxide, stearic acid, sulfur, silane coupling agent, accelerator and antioxidant, and the olefin rubber is mixed with natural rubber, solution-polymerized styrene-butadiene rubber, butadiene rubber and iron-based butadiene-pentadiene rubber. The molecular weight of the iron-based butadiene-pentadiene rubber is 50-80w, the molecular weight distribution is 1.5-2.5, the sum of the vinyl and propylene side group contents is 30-50%, and the molar ratio of monomer butadiene to isoprene during the preparation process is (1.5-9): 1. The material of the present invention is used as a tire tread rubber. The present invention effectively balances the "devil's triangle" performance of the rubber material.

The invention belongs to the technical field of light flexible photovoltaic modules, and relates to a flame-retardant epoxy composite material as well as a preparation method and application thereof. Comprising the following components: bisphenol epoxy resin, aromatic epoxy resin, halogen-containing epoxy resin, a curing agent A, a curing agent B, a curing accelerator, a flame retardant A, a flame retardant B, a UV absorbent, a light stabilizer, an antioxidant and nano-coated montmorillonite. The nano-coated montmorillonite is added on the premise of not influencing the light transmittance, the flame retardant is matched with the montmorillonite at high temperature to generate a heat insulation carbon layer, and the montmorillonite is used as a heat insulation carbon layer reinforcing medium to play a role in condensed phase flame retardance, heat insulation, cooling and slowing down thermal degradation of resin, so that flame propagation is slowed down, and the flame retardance is effectively improved; the composite material is suitable for light flexible components with high flame resistance requirements.

The application discloses an ultrahigh molecular weight polyethylene-acrylonitrile butadiene rubber composite elastic material, which comprises 70wt%-95wt% of ultrahigh molecular weight polyethylene and 5wt%-30wt% of acrylonitrile butadiene rubber powder, has an island-sea structure, wherein the acrylonitrile butadiene rubber powder is a dispersed phase, the ultrahigh molecular weight polyethylene is a continuous phase, and the dispersed phase and the continuous phase are connected by C-C chemical bonds; and the particle size of the acrylonitrile butadiene rubber powder is less than or equal to 0.7mm. By limiting the content of the ultrahigh molecular weight polyethylene and the acrylonitrile butadiene rubber powder, combining the connection between the two phases by C-C chemical bonds and limiting the particle size of the acrylonitrile butadiene rubber powder, the rubber particles in the composite elastic material are first deformed when the composite elastic material is subjected to external force, so that the composite elastic material has good resilience and lower permanent deformation at a smaller strain.

The invention relates to the technical field of fluorescent ink, and particularly discloses fluorescent anti-counterfeiting ink and a preparation method thereof. The fluorescent anti-forgery ink is prepared from the following raw materials: a rare earth complex fluorescent material, an ink binder, ethyl acetate, a defoaming agent and an antioxidant, and the rare earth complex fluorescent material is prepared from the following raw materials: a rare earth complex, isocyanate and polycarbonate diol in a molar ratio of 1: (2.8-3): 1. The preparation method comprises the following steps: dispersing the rare earth complex in an organic solvent, then adding isocyanate, heating and stirring, raising the temperature for reaction, then supplementing the organic solvent, then adding polycarbonate diol into the system for continuous reaction, and finally adding a chain extender and an end-capping reagent to obtain the rare earth complex fluorescent material. The product provided by the invention can be used for printing anti-counterfeiting patterns or characters, and has the advantages of high fluorescence intensity and strong endurance capacity.