65results about How to "Film stabilization" patented technology

The invention discloses a water borne epoxy resin anticorrosive paint and preparation method thereof and solves the contradiction between storage stability of water dispersion and water resistance and corrosion resistance of dispersion film in the prior art. The paint is prepared by mixing oxosilane modified water borne epoxy resin dispersion, iron oxide red, rustproofing pigment, talc powder, defoaming agent, flatting agent, flash rust proofing agent and deionized water in ratio, and the invention is characterized in that: hydrophilic monomer is introduced to epoxy resin molecular chain, so the paint has self-emulsifying characteristic; and oxosilane is applied to modifying of the water borne epoxy resin, so that the paint can be heated and self-solidified. The paint has good storage stability and good construction performance, film can be fast dried and has high rigidity after being dried, the film is bright and smooth, water proof, corrosion resistant, washing resistant, good in comprehensive performance and low in cost. The invention can meet the requirement of anticorrosive paint in the fields of storage tank, bridge and the like.

The present invention provides a novel electron transporting material having good heat resistance and being capable of forming devices with high thermal characteristics and an organic light-emitting device therewith. The phenanthroline derivative represented by the general formula below is used as the electron transporting material to form the organic light-emitting device:wherein the position of the substituent R6 or R7 depends on the position of the linkage between the phenanthrolinyl group and the fluorenyl group; X represents a single bond between the phenanthrolinyl group and the fluorenyl group; n0 and n1 each independently represent an integer of 0 to 2; and n2 and n3 each represent the number of the substituents and each independently represent an integer of 1 to 4.

This ethylenic polymer composition for the high-speed drawn film-forming contains an ethylenic polymer in an amount of 35-60 mass% and an inorganic filler in an amount of 65-40 mass%, wherein the ethylenic polymer contains a branched-type low-density polyethylene in an amount of 3-20 mass% and is composed so that an elution component (component A) having an elution temperature of not less than 95[deg.]C and less than 120[deg.]C, an elution component (component B) having an elution temperature of not less than 85[deg.]C and less than 95[deg.]C, an elution component (component C) having an elution temperature of not less than 70[deg.]C and less than 85[deg.]C, and an elution component (component D) having an elution temperature of less than 70[deg.]C are contained in the olefinic polymer in amounts of 10-20 wt%, 20-40 wt%, 25-45 wt%, and 15-30 wt%, respectively, provided that the components A, B, C, and D are contained in an amount of 100 wt% in total, when the elution components having the specified temperature ranges are determined based on a curve relating the elution temperature to the amount of the elution component due to a continuous temperature-rising elution fractionation (TREF) method.

The invention discloses water-soluble rosin resin and a preparation method and application thereof. The water-soluble rosin resin comprises the following raw materials in parts by weight: 80 to 100 parts of maleated rosin, 35 to 75 parts of PEG200, 10 to 50 parts of citric acid and 0.1 to 0.2 part of a catalyst. The preparation method of the water-soluble rosin resin comprises the following stepsof melting the maleated rosin, adding the PEG200 and the catalyst, and performing a reaction at 180-250 DEG C for 1-8 hours to obtain maleated rosin polyethylene glycol ester; and adding the citric acid into the maleated rosin polyethylene glycol ester, and performing a reaction at 150-180 DEG C for 1-6 hours to obtain the water-soluble rosin resin. Water and an alkali solution are added into thewater-soluble rosin resin, the pH value is adjusted to 7-8 to obtain a rosin-based fruit and vegetable preservative, and the surfaces of fruits and vegetables are coated with the obtained rosin-basedfruit and vegetable preservative. The water-soluble rosin resin disclosed by the invention is low in raw material preparation cost, easy to dissolve in the alkali solution, good in solubility, easy toclean and beneficial to guarantee of cleanness of the fruits and vegetables, and the water-soluble rosin resin disclosed by the invention is safe and reliable in component, belongs to the non-toxic grade, and is good in film-forming property and bright and durable in color and luster.

The invention discloses a method for preparing an amino silicon oil modified acrylic resin leather finishing agent. The method comprises the following steps of: firstly, introducing acetoacetic acid ethyl methacrylate (AAEM) serving as a functional monomer into an acrylic resin molecular chain to prepare self-crosslinking acrylic resin emulsion; and compounding the amino silicon oil emulsion and acrylic resin emulsion according to a certain proportion to prepare a room-temperature self-crosslinking acrylic resin leather finishing agent by using the amino silicon oil as a crosslinking agent. According to the invention, self-crosslinking is carried out on the leather finishing agent at the room temperature, and a amino silicon oil crosslinking acrylic resin net structure is formed after film formation; and due to introduction of the amino silicon oil, the flexibility and the smoothness of the film are increased and the hand feel of the film is improved. By the improvement method, the physical performance of leather coating can be obviously improved, the defect of hot stickiness and cold brittleness of the traditional acrylic resin is overcome, and the method has wide application prospect in the field of leather coating.