32results about How to "Good water and solvent resistance" patented technology

The invention discloses a hydrophilic oleophobic polymer and preparation method thereof, and application thereof in humidity response oil and water separating membrane. The preparation of the hydrophilic oleophobic polymer comprises the following steps: carrying out an esterification reaction of polyvinyl alcohol and perfluorocarboxylic acid or firstly carrying out a carboxylation of polyvinyl alcohol and then a neutralization reaction of the intermediate product and perfluorotertiary amine. When the product is used, a fabric silk screen is cleaned with ultrasonic sound; 10-50 parts of hydrophilic oleophobic polymer, 50-500 parts of nanometer sol, 1-5 parts of cross-linking agents and 1-5 parts of catalysts are dispersed uniformly; the mixed liquor is dip-coated or spray-coated on the surface of the membrane, and after drying and crosslinking, the humidity response super-hydrophilic and super-oleophobic oil and water separating net membrane. According to the invention, hydrophilic groups are distributed surrounding the hydrophobic chain segment on the surface of the net membrane with humidity responsiveness, and contact angle in the air of the product to water is reduced to 0 degree from more than 90 degrees, and the contact angle in air and water of the product to oil is above 150 degrees, so the product has a low adherence characteristic of droplet. The net membrane is used for separating oil and water mixture and processing oil-containing sewage.

An ink composition of the present invention includes: (a) a polymer compound which includes a repeating unit (a-1) having a partial structure expressed by the following General Formula (1), a repeating unit (a-2) which has a hydrophilic group and accounts for 8% to 25% by mass with respect to the total mass of the polymer compound, and a repeating unit (a-3) having a hydrophobic group, the polymer compound having a solubility parameter in an unneutralized state of 20.7 MPa^1/2 to 23.0 MPa^1/2, (b) water; and (c) a water-soluble organic solvent.

Disclosed is a coating agent characterized by comprising: a core-shell-type resin particles (A) each having a shell layer and a core layer; a compound (B) having at least one selected from the group consisting of a hydrolysable silyl group and a silanol group and also having an epoxy group; and an aqueous medium, wherein the shell layer comprises (a1) a urethane resin with 2000 to 5500 mmol/kg of an aliphatic cyclic structure and at least one selected from the group consisting of a carboxyl group and a carboxylate group and the core layer comprises (a2) a vinyl polymer having a basic nitrogen-atom-containing group. Further disclosed are a coating agent for a plastic base material and a coating agent for a metallic base material.

The invention discloses a water-dispersible quick-drying low-temperature self-crosslinked acrylate resin for inks and a preparation method thereof. The water-dispersible quick-drying low-temperature self-crosslinked acrylate resin for inks is prepared by copolymerizing the following components in parts by mass: 12-20 parts of hard monomer, 12-20 parts of soft monomer, 4.5-10 parts of first-type hydrophilic monomer, 0.5-2.5 parts of second-type hydrophilic monomer, 0.6-2 parts of crosslinkable monomer, 0.3-0.6 part of initiator and 50-70 parts of solvent. A pH regulator is added to regulate the pH value to 7-8; and 30-60 parts of water is added as a dispersing agent. The ink prepared by using the water-dispersible acrylate resin as the connecting material can implement low-temperature (<50 DEG C) crosslinking curing, and has the advantages of short drying and curing time (the surface drying time is 25-50 seconds), excellent adhesive force (Grade 0) on low-polarity materials (PE (polyethylene) and PP (polypropylene) films), favorable staining power, favorable bonding resistance, favorable water resistance and favorable solvent resistance.

There is described use of a biorenewable copolymers in one or more of: in a topical and/or personal care composition, as a binder for toner, as an encapsulating agent for a colorant, as a hybrid colorant, as additive for sheet moulding compounds, as a plastic pigment, as a filler for composite materials such as concrete, as a filler for coatings and/or waxes; and/or as a spacer in a display; where the biorenewable copolymer comprises (a) at least 8. 5 wt-% preferably >=20 wt-% of a higher itaconate diester (preferably dibutyl itaconate—DBI); (b) less than 23 wt-% acid monomer but also sufficient to have an acid value less than 150 mg KOH/g of polymer, (c) optionally with less than 50 wt-% of other itaconate monomers, and (d) optionally less than 77 wt-% of other monomers not (a) to (c). The DBI may be biorenewable. One embodiment is an aqueous dispersion of vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from −50 to 30° C.; and B) 10 to 60 wt-% of a vinyl polymer B with Tg from 50 to 130° C.; where DBI is used to prepare A and/or B and polymer A has from 0.1 to 10 wt-% of at least one acid-functional olefinically unsaturated monomer.

The invention discloses a high-strength cellulose/lignin composite material with a reinforced concrete structure and a preparation method thereof. The preparation method comprises the following steps that (1) a timber is cut into a wood chip in a needed specific shape; (2) the wood chip is soaked in a reaction kettle containing sodium sulfite, sodium hydroxide and methyl alcohol cooking liquid to be cooked; and (3) the cooked wood chip is washed with clean water, residual cooking liquid is removed, pressurization and drying are conducted, and the high-strength cellulose/lignin composite material with the reinforced concrete structure is obtained. The composite material has the reinforced concrete structure, and the tensile strength is as high as 810 MPa and is twenty times that of an original wood chip. The preparation method is simple in process, any non-biodegradable substances and environmentally harmful substances do not need to be added in the preparation process, and the preparation method is high in efficiency and environmentally friendly.

The present invention relates to: a polymer particle in which a urethane resin (A1) and an acrylic polymer (B1) are included in a single particle, said polymer particle having a gel fraction of 10% or more as measured using N,N-dimethylformamide (DMF) as a solvent; a polymer particle in which a urethane resin (A2) having a sulfonic acid group and an acrylic polymer (B2) are included in a single particle, said polymer particle having a surface acid value of 0.1 to 19 mgKOH/g as measured by a potentiometric titration method; and a method for producing a polymer dispersion. According to the present invention, it becomes possible to provide: a polymer dispersion which has excellent polymerization stability and can have an excellent coating viscosity property and excellent storage stability when used in a coating material; a method for producing the polymer dispersion; and a polymer particle contained in the polymer dispersion. It also becomes possible to provide: a coating material which enables the formation of a coating film that can have excellent water resistance and solvent resistance even when the drying conditions include a low temperature and a shorter drying time; and a coated material which has the coating material applied thereon.

There are provided a new crosslinked polymer electrolyte excellent in water resistance and solvent resistance, high in heat resistance, inexpensive and low in methanol permeability, and suitable for the proton conductive membrane of a fuel cell, by means of the crosslinked polymer electrolyte obtained by the following (1) or (2), and its production method.

(1) A compound having two or three or more reactive groups is reacted with a polymer electrolyte.

(2) A compound having two or three or more reactive groups is reacted with a polymer to obtain a crosslinked polymer and then an ion exchange group is introduced into the resultant polymer.

The invention relates to the technical field of high polymer materials, in particular to water-based UV resin and a preparation method thereof. The preparation method comprises the following steps: (1) adding metered diisocyanate into a reactor, dropwise adding dehydrated polyol, and reacting for 1-3 hours to obtain a product A; (2) in another reactor, under the protection of nitrogen, adding a raw material ethanolamine, then adding a catalyst, and raising the temperature of the system to 60-80 DEG C; dropwise adding a reaction monomer, and reacting for 3-8 hours to obtain a product B; and (3)adding the product B into the reactor under the protection of nitrogen, heating the system to 60-80 DEG C, dropwise adding the product A, reacting for 1-3 hours, and discharging to obtain the water-based UV resin. The obtained water-based UV resin has high solid content and excellent water resistance and solvent resistance, and does not use a low-molecular-weight reactive diluent, so that the contradiction that high hardness and high flexibility of light-cured resin cannot be considered at the same time is overcome, and the water-based UV resin has excellent steel wool scraping resistance.

The invention relates to a solvent-free environment-friendly high-performance modified epoxy adhesive material and a preparation method thereof. The material comprises a first composition, a second composition and a third composition, wherein the first composition is prepared from the following raw material components in parts by weight: 100 parts of liquid epoxy resin and 10-100 parts of hyperbranched polymer; the second composition is prepared from the following raw material components in parts by weight: 7-50 parts of compound curing agent; and the third composition is prepared from the following raw material components in parts by weight: 10-200 parts of solid filler and pigment; and the compositions are respectively packaged independently. The modified epoxy adhesive material has thecement adhesion strength of more than or equal to 5MPa and elongation at break of more than or equal to 30 percent, has excellent comprehensive performance, is easily available in raw materials, environment friendly and solvent free, and can be used in waterproof protection and reinforcement of various floor and wall faces indoors and outdoors, structure reinforcement of various constructions andthe like.

The invention discloses a preparation method of a water-based fluorine-containing acrylic emulsion, which comprises the following steps: 1) in a reaction kettle, uniformly mixing and dissolving alkali-soluble solid acrylic resin, deionized water, a reactive emulsifier and an alkaline substance at 60-70 DEG C to prepare a protective colloid solution; (2) preparing an emulsion A, and (3) preparing the water-based fluorine-containing acrylic emulsion. The water-based fluorine-containing acrylic emulsion has the characteristics of high glossiness and fullness, good water resistance and solvent resistance, high weather resistance, excellent stain resistance, outstanding hydrophobicity and lipophobicity, high film forming efficiency and good product performance stability.

Disclosed are an optical film, including: a transparent film, and a coating layer on at least one surface of the transparent film, in which the coating layer is formed using a composition including a polymer resin, a dihydrazide-based crosslinking agent, and water-dispersible fine particles, and a polarizing plate including the same.

It is an object of the present invention to provide a water-based composite resin composition which has an excellent long-term storage stability and which enables formation of a coating film having an excellent water resistance and solvent resistance. The present invention relates to a water-based composite resin composition and a coating agent; the water-based composite resin composition containing composite resin particles (A) and an aqueous medium (B), the composite resin particles (A) containing polyester resin (a1) particles having a sulfonate group and an epoxy resin (a2) of which some or all parts are encapsulated in the polyester resin (a1) particles, wherein a mass ratio [(a1)/(a2)] of the polyester resin (a1) to the epoxy resin (a2) in the composite resin particles (A) is in the range of 95/5 to 30/70.

The invention discloses a preparation method of a high-resistance environment-friendly water-based coating for the inner wall of a packaging barrel. The preparation method comprises the steps of S1, modifying epoxy resin; S2, dispersing and grinding the powder; and S3, neutralizing and compounding. The invention further discloses the high-resistance environment-friendly water-based coating for theinner wall of the packaging barrel, which is prepared according to the preparation method of the high-resistance environment-friendly water-based coating for the inner wall of the packaging barrel. The high-resistance environment-friendly water-based coating for the inner wall of the packaging barrel disclosed by the invention is good in comprehensive performance, excellent in resistance, wear resistance, water resistance, solvent resistance and chemical stability, and strong in adhesive force with a base material.

The invention discloses UV curing ink for an aluminum plate and a preparation method of the UV curing ink, belonging to the technical field of UV curing ink. The UV curing ink comprises, in parts by weight, 55 to 70 parts of unsaturated resin, 20 to 30 parts of acrylate monomers, 1 to 10 parts of a photoinitiator, 5 to 10 parts of a pigment and 1 to 5 parts of an auxiliary agent. According to theinvention, the UV curing ink with excellent comprehensive performance is obtained by adjusting the types and proportions of the soft and hard acrylate monomers. The ink is environment-friendly and non-toxic and has a high curing rate; epoxy groups in epoxy resin have excellent adhesive force to aluminum products; the ink is excellent in water resistance, solvent resistance, heat resistance, weather resistance and wear resistance after being cured; and the UV curing ink prepared in the invention can be attached to the surface of a metal product, and is especially suitable for roller coating tothe surface of a steel product.