Embodiments of the present invention provide users with a system and method for manufacturing water-based hydrophobic aerogels and aerogel composites. The system and method can be carried out in a manner which is more rapid than typical ways and can be readily scalable. The method of manufacture is useful for producing water based hydrophobic aerogels and aerogel composites on a large scale with good homogeneity and consistency. Advantageously, the method of manufacture also has the benefit of a shorter processing time due to the vacuum homogenizing and mixing processes, the use of microwave assisted vacuum freeze drying for ease of synthesis of water-based hydrophobic aerogels.

Disclosed are films and materials comprising poly(alkylene glycol)-chitosan and/or chitin-poly(glucuronic acid) and chitosan and/or chitin-poly(glucuronic acid). Methods of making such films, particularly involving thermally crosslinking poly(glucuronic acid) with chitosan, are disclosed.

Disclosed are a copolymerized PVDF resin for lithium battery binders and its preparation method. 300 to 600 parts of deionized water, 0.04 to 0.25 part of a pH buffer regulator, 85 to 99.5 parts of a vinylidene fluoride (VDF) monomer, 0.5 to 15 parts of a comonomer, 0.3 to 3 parts of a metallocene synergist, 0.2 to 1.0 part of an initiator, 0.08 to 0.35 part of a dispersant react at 40 to 65° C., 5.5-8.0 Mpa. At the end of the reaction, the unreacted monomers are recovered, and then the operations of washing, filtering, and drying are carried out to obtain the copolymerized PVDF resin. For the copolymerized PVDF resin for lithium battery binders, the binding of PVDF resin to a positive electrode active material and current collector is improved, and the rotational viscosity of the NMP solution and the preparation and dispersion requirements for PVDF resin slurry are reduced.

The invention provides hydrogel, wherein the hydrogel has a supramolecular cross-linked network obtainable or obtained from the complexation of an aqueous composition including a host, such as cucurbituril, and one or more polymers having suitable guest functionality. One or more polymers in the aqueous composition may have a molecular weight of 50 kDa or more, such as 200 kDa or more. The hydrogel may hold a component, such as a therapeutic compound or a biological molecule. The hydrogels are suitable for use in medicine.

The present invention relates to a super absorbent polymer and a manufacturing method thereof. More particularly, the present invention relates to a manufacturing a fine powder reassembly in which excellent physical properties are maintained.

The present invention relates to a super absorbent polymer and a manufacturing method thereof. More particularly, the present invention relates to a manufacturing a fine powder reassembly in which excellent physical properties are maintained.

Superabsorbent mixtures M comprising at least 70% by weight of superabsorbent A having a liquid absorption of 20 g/g (T20) of less than 300 s and/or a volumetric liquid absorption under pressure 0.3 psi (2.07 kPa) (VAUL) with a τ value of less than 400 s, and at least 5% by weight of superabsorbent B having a centrifuge retention capacity (CRC) of at least 30 g/g.

The hydrogel includes a first network structure and a second network structure. The second network structure is entwined with the first network structure. The first network structure contains a polymer crosslinked with a first crosslinking agent. The second network structure contains a polymer crosslinked with a second crosslinking agent. 50 mol % or more of the first crosslinking agent does not contain a decomposable bond. 50 mol % or more of the second crosslinking agent does not contain a decomposable bond.

A method for predicting physical properties of a polyethylene resin is provided, which can reliably predict a proper charging ratio of a crosslinking agent in the production process of a low density crosslinked polyethylene resin, and the physical properties of the polyethylene resin achieved therefrom. A method for producing a polyethylene resin by applying the same method is also provided.

A method for predicting physical properties of a polyethylene resin is provided, which can reliably predict a proper charging ratio of a crosslinking agent in the production process of a low density crosslinked polyethylene resin, and the physical properties of the polyethylene resin achieved therefrom. A method for producing a polyethylene resin by applying the same method is also provided.