30results about How to "Improve the adhesion firmness" patented technology

The invention discloses a hydrocarbon oxidation catalyst and a preparation method thereof, in particular to a catalyst for preparing maleic anhydride by using benzene as a raw material through gas-solid phase catalytic oxidation reaction. The catalyst is prepared by using a salt or oxide containing V, Mo, Ti, P, Na, Ni as a precursor to prepare a solution or suspension, drying, activating, homogeneously emulsifying, and spraying. The invention solves the problems of long induction period of existing catalysts, easy fall-off of active substances, low utilization rate of catalyst raw materials, poor working environment for workers and serious environmental pollution.

The application relates to the field of castings, and discloses a check valve casting and its processing technology. Check valve casting, the surface of the check valve casting is processed by a surface treatment agent, and the surface treatment agent includes the following raw materials in parts by weight: 30-40 parts of styrene-maleic anhydride copolymer; 8-10 parts of Cr 3 Si; 4‑6 parts of 1,6‑hexanediol diacrylate; 6‑8 parts of 4‑(benzylthiol)phenol; 1‑2 parts of catalyst; 40‑50 parts of isooctyl polyoxyether ester; The processing technology is: S1. Surface treatment agent preparation; S2. Thermal spraying; S3. Post-processing; This application has the following advantages and effects: using Cr 3 Si enhances the wear resistance of surface treatments, styrene‑maleic anhydride copolymer and Cr 3 Si blending to improve dispersion, and further mixing the products of 1,6-hexanediol diacrylate and 4-(benzylthiol) phenol to obtain a copolymer mixture with a larger molecular weight and a dense structure to improve the non-return The wear resistance of valve castings; the processing technology adopts the method of preheating, thermal spraying and sealing treatment, and the performance of check valve castings is better.

The present invention relates to the field of ink technology, in particular to a UV screen printing plastic ink and a preparation method thereof. The UV screen printing plastic ink of the present invention consists of the following raw materials in parts by weight: 18-28 parts of polyurethane acrylate, 16-25 parts of polyester Acrylate, 6~15 parts of solid acrylic resin, 2~8 parts of TPGDA, 7~15 parts of TMPTA, 4~12 parts of HDDA, 14~22 parts of pigment powder, 1~3 parts of dispersant, 0.2~1.2 parts of silicone disinfectant Foaming agent, 1~4 parts of silicone leveling agent, 1~3 parts of photoinitiator, 0.2~1.5 parts of adhesion promoter. The present invention uses solid acrylic resin as one of the base materials, which has better flexibility and adhesion, greatly improves the printing adaptability of plastic inks, and the base materials urethane acrylate and polyester acrylate have excellent adhesion, The adhesion firmness of the present invention is further enhanced, the printing adaptability is better, and the printing effect is good.

The invention provides a composite filter material for biological soil deodorization and application thereof. The composite filter material is mainly composed of semi-weathered sandy soil filter material and wood-based granular carbon carrier solidified microbial filler. The semi-weathered sandy soil filter material has a diameter of 1-3mm, a porosity of 20%-40%, and a specific surface area of ​​6-10m2 / g. Wood-based granular carbon carrier solidified microbial filler carrier is carbonized broken wood particles, the particle diameter is 3-5mm, the carbonization condition is 600°C-700°C anoxic condition, and the carbonization time is 3-5h. The microorganism used in the wood-based granular carbon carrier solidified microbial filler is a kind of Facultative Citrobacter ZT‑S5 (Citrobacter sp.), and the strain preservation number is CGMCC No.15120. Maintain the abundance and activity of microorganisms, and quickly restart after a long period of shutdown, so that the biological soil deodorization system can quickly meet the waste gas treatment requirements. The invention is easy to obtain materials, and the wood-based granular carbon carrier solidifies the microbial filler to make a simple process, and the source of the Citrobacter used is collected from a sewage treatment plant, without secondary pollution and ecological risk.

The invention belongs to the technical field of aluminized films, and discloses a low-friction coefficient high-resistance aluminized film. The aluminized film is characterized by comprising a heat-seal layer, a first core layer, a second core layer and an aluminized layer which are arranged in sequence through four-layer co-extrusion casting the mass percentages of the heat-seal layer, the first core layer, the second core layer and the aluminized layer are 21%, 30%, 30% and 19% respectively; the heat-seal layer is made of ternary random copolymerization polypropylene (PP) resin and a modifying agent; the adding amount of the modifying agent is 10-15% of the mass of the ternary random copolymerization polypropylene (PP) resin; the first core layer is made of polypropylene resin; the second core layer is made of polypropylene resin; the aluminized layer is made of copolymer resin and a reinforcing agent; the adding amount of the reinforcing agent is 2-5% of the mass of the copolymer resin. The aluminized film prepared according to the method is relatively low in friction coefficient, and relatively high in heat-seal strength.

This invention relates to acidic phosphate paint for high-temperature spraying onto steel green bodies and steel coils. The acidic phosphate paint comprises: adhesive, pigment and dispersant at a weight ratio of 100: (5-25): (0.5-10). The adhesive is a transparent liquid containing acidic aluminum phosphate and magnesium phosphate, and the solid content is 40-70 wt.%. In the raw materials of the adhesive, the mol ratio of PO43-, Al3+ and Mg2+ is (2.1-3.0) : 1 : (0.4-0.6). The paint has the solid content of 25-50 wt.%, and a pH value of 2-4. The paint has such advantages as stable properties and low corrosion, and can be directly sprayed onto steel green bodies and steel coils higher than 200 deg.C. The obtained patterns have high adhesiveness.

The invention discloses a preparation method of a polysulfonamide inflaming-retarding comfortable elastic knitted plus material. The preparation method comprises the following steps of (1) preparation of functional inflaming-retarding yarn: adopting covering yarn of which a polyamide fiber is a yarn core externally wrapped by polysulfonamide fiber as first yarn; carrying out cabling on a vinyl chloride-acrylonitrile copolymer fiber and a polytetrafluoroethylene fiber to obtain second yarn; using cationic modified polyester low stretch yarn as third yarn; (2) weaving: weaving the treated first yarn, second yarn and third yarn by adopting a knitting process into base cloth; (3) dyeing: carrying out dyeing on the base cloth by adopting cationic dye and active dye; (4) post treatment: subjecting the dyed base cloth to dehydration, oven-drying and setting treatment, so as to obtain the polysulfonamide inflaming-retarding comfortable elastic knitted plus material. The polysulfonamide inflaming-retarding comfortable elastic knitted plus material prepared by the preparation method is obvious in the superposition functions of fire resistance, comfortableness and elasticity, good in air permeability, comfortable to wear, excellent in color fastness performance, high in environmental friendliness and further simple in preparation process, and has a favorable market prospect.

The invention relates to an enteric-coated oral vaccine for fishing, belonging to the field of oral vaccines for fishing. The enteric-coated oral vaccine for fishing comprises particles or pellets sprayed with a vaccine layer and sequentially coated with an isolating layer and an enteric-coated layer outside the vaccine layer. A dry powder composition A for spraying vaccine and coating the isolating layer comprises the following components (by weight parts) one or more film-forming agents selected from hydroxypropyl methylcellulose, polyvinyl alcohol and polyvinyl pyrrolidone 40-60 parts, oneor more plasticizing agents selected from phosphoglyceride, triethyl citrate and polyethylene glycol 3-10 parts, one or more antisticking agents selected from silicon dioxide, magnesium stearate, talcum powder and titanium oxide 30-50 parts, and surfactant selected from lecithin and Tween-80 0-5 parts. The vaccine can be directionally released in intestinal tract.