7 results about "Isobutylmethacrylate" patented technology

The utility model relates to the technical field of chemical equipment, in particular to a telescopic isobutyl methacrylate storage tank. According to the technical scheme, an upper tank body is installed at the upper end of a middle tank body, a lower tank body is installed at the bottom end of the middle tank body, a first sliding groove is formed in the upper tank body in a penetrating mode, a second sliding groove is formed in the lower tank body in a penetrating mode, and a sliding block is arranged on the middle tank body; the upper tank body and the lower tank body are installed at the two ends of the middle tank body in a limiting mode through cooperation of the first sliding grooves, the second sliding grooves and the sliding blocks. An upper support is arranged on the upper surface of the connecting plate, a lower support is arranged at the bottom end of the connecting plate, the base supports the lower tank body through the upper support, and the upper tank body, the middle tank body, the lower tank body and the base are supported through the lower support. The storage tank provided by the utility model has scalability in the vertical direction. According to the design, the height of the tank body can be adjusted according to different storage requirements, the space is saved, and the storage efficiency is improved.

The application belongs to the field of air filtration, and specifically discloses a kind of water and oil removal air filtration material and its preparation method, the preparation method is to mix and react octadecyl methacrylate, isobutyl methacrylate, acrylic acid, ethylene glycol ester and styrene for a preset time to form modified methacrylic acid resin, then the first fiber short filament is prepared by using modified methacrylic acid resin;The second fiber short filament is prepared by using polyacrylate resin;Glass wool, the first fiber short filament and the second fiber short filament are mixed to prepare to obtain water and oil removal air filtration material.The application can achieve the effect of water and oil removal while maintaining efficient filtration of solid particles in the air, greatly prolonging the service life of the air filtration material, reducing the filter replacement cost and manual work intensity.

The invention discloses a composite oil-absorbing resin, which comprises the following raw materials: 10-20 mmol of cobalt nitrate, 5-10 mmol of aluminum nitrate, 2-4 g of beta-cyclodextrin, 2.5-5 g of ethylenediaminetetraacetic acid, 0.6-1.25 g of disodium hydrogen phosphate, 0.5-3 g of KH-570, 0.5 wt%-2.5 wt% of polyvinyl alcohol, 10 wt%-90 wt% of octadecyl methacrylate, 10 wt%-90 wt% of isobutyl methacrylate, 0.1 wt%-2 wt% of divinylbenzene, 0.5 wt%-2.5 wt% of benzoyl peroxide and 10 wt%-60 wt% of ethyl acetate; and a preparation method thereof, which specifically comprises the following steps: (1) weighing; (2) preparing cobalt-aluminum bimetallic oxide nanoparticles; (3) grafting beta-cyclodextrin; (4) hydrophobic modification; and (5) preparing the composite oil-absorbing resin. This invention incorporates β-CD cage-like macromolecules into a highly oil-absorbent resin, leveraging the pores formed by the β-CD rings and their hydrophobic pores to achieve a high oil absorption rate. Furthermore, cobalt-aluminum bimetallic oxide nanoparticles contribute to the resin's 3D network structure, enhancing the composite oil-absorbent resin's strength.

This invention provides an apparatus and method for producing isobutyl methacrylate using a novel membrane reactor. The apparatus integrates a tubular fixed-bed reactor with a pervaporation membrane system. A compartmentalized structure maintains the pressure difference across the membrane, and a dual-tube module optimizes the channel spacing to suppress polymerization side reactions. During the reaction, the pervaporation membrane selectively removes the byproduct water, breaking the equilibrium limitation of the esterification reaction and significantly improving the feed conversion rate. Simultaneously, it disrupts the water-isobutanol azeotropic system, reducing subsequent separation energy consumption and achieving integrated reaction and separation processes. This invention solves the problems of equilibrium limitation on conversion rate, high separation energy consumption, and easy polymerization in traditional processes. It features high conversion rate, low energy consumption, and stable operation, making it suitable for the continuous and green production of isobutyl methacrylate.

The present disclosure provides a hydroxyl acrylic resin dispersion for waterborne paints, a preparation method thereof, and a waterborne paint, belonging to the technical field of waterborne acrylic resins. The hydroxyl acrylic resin dispersion for waterborne paints includes: 2-3 parts by mass of styrene; 7-8 parts by mass of methyl methacrylate; 23-24 parts by mass of isobutyl methacrylate; 2-3 parts by mass of hydroxypropyl methacrylate; 7-8 parts by mass of hydroxyethyl methacrylate; 0.5-1 part by mass of acrylic acid; 0.1-0.5 part by mass of diacetone acrylamide; 0.5-1.5 parts by mass of ethylene glycol dimethacrylate; 2-3 parts by mass of tert-butyl peroxy (2-ethylhexanoate); 2-3 parts by mass of diethylene glycol methyl ether; 1-2 parts by mass of N,N-dimethylethanolamine; 45-55 parts by mass of deionized water. By using the dispersion in combination with an isocyanate crosslinking agent, the application effect of an oil-based paint can be achieved, and at the same time, it also has good water resistance and acid and alkali resistance.

The invention belongs to the field of air filtration, and particularly discloses a water and oil removal air filtration material and a preparation method thereof.The preparation method comprises the steps that octadecyl methacrylate, isobutyl methacrylate, acrylic acid, glycol ester and styrene are mixed and react for preset time to form modified methacrylic resin; then preparing first short fiber filaments by utilizing the modified methacrylic resin; preparing second short fiber filaments by using polyacrylate resin; and mixing the glass wool, the first fiber short filaments and the second fiber short filaments to prepare the water and oil removal air filtering material. According to the air filtering device, the water and oil removal effect can be achieved while solid particles in air are efficiently filtered, the service life of an air filtering material is greatly prolonged, and the filter element replacement cost and the manual work intensity are reduced.

The invention relates to an artificial corneal endothelium sheet as well as a preparation method and application thereof. The artificial corneal endothelium sheet is prepared from the following raw materials: a hydrophilic monomer, a hydrophobic monomer, a cross-linking agent, an ultraviolet absorption monomer, a blue light absorption monomer and an initiator, the hydrophilic monomer comprises a combination of hydroxyethyl methylacrylate and polyethylene glycol methacrylate, and the hydrophobic monomer comprises a combination of methyl methacrylate and isobutyl methacrylate; in the preparation raw materials, the use amount of the hydrophilic monomer is 80-94 wt%, and the use amount of the hydrophobic monomer is 5-19 wt%. According to the artificial corneal endothelium sheet provided by the invention, the proportion and components of the hydrophilic monomer and the hydrophobic monomer are regulated and controlled, so that the obtained artificial corneal endothelium sheet is moderate in water content and has excellent mechanical properties, adhesion performance and swelling stability.