64results about How to "Stable dispersed state" patented technology

A metal nanoparticle dispersion comprising: a dispersion of a polymer compound (X), which comprises a polyalkyleneimine chain (a), a hydrophilic segment (b) and a hydrophobic segment (c), and metal nanoparticles (Y).

The invention discloses a method for preparing a lignin-based dispersing agent by purifying pulping black liquor through a capacitive deionization method. The preparation method comprises the following steps of (1), adding the pulping black liquor into a reactor, removing a charged impurity in the pulping black liquor with a direct-current voltage of 1.0V to 3.0V by using an electrode, making the pulping black liquor flow through the electrode at a flow speed of 0.1m / min to 0.5m / min, interrupting a power supply once per 5min to 30min to clean the electrode, then recycling the electrode again, and treating a raw material of the pulping black liquor; (2), adding the pulping black liquor from which the charged impurity is removed into another reactor, raising temperature to 60 to 80 DEG C, adding an oxidant into the another reactor, making an obtained first mixture react for 0.5h to 2.0h, afterwards, adding an aldehyde type compound into the another reactor, making an obtained second mixture react for 0.5h to 3.0h at 60 to 100 DEG C, then adding a sulfonating agent into the another reactor, making an obtained third mixture react for 2.0h to 5.0h at 90 to 130 DEG C, then regulating the PH (Potential of Hydrogen) of a reaction system to be 11 to 13, adding sodium hypophosphite into the another reactor, making an obtained fourth mixture react for 1.0h to 4.0h at 80 to 120 DEG C, then adding a quaternizing agent into the another reactor, making an obtained fifth mixture react for 1.0h to 4.0h, then carrying out cooling and discharging to obtain a black-brown liquid product, and drying the black-brown liquid product, so that powder of the lignin-based dispersing agent is obtained.

The invention provides a high-efficiency composite guanidine-based paper-making fungicide, which belongs to the technical field of paper-making fungicide production. In parts by weight, the fungicide comprises the following components: 10-30 parts of guanidine-based polymer, N-octyl 5-15 parts of isothiazolinone, 150-450 parts of diethylene glycol, 0.5-1.5 parts of dodecyl dimethyl benzyl ammonium chloride, 0.3-1.8 parts of hydroxymethyl cellulose, o-phenyl Potassium hydrogen diformate 0‑100 parts. The guanidine-based polymer is polyhexamethylene biguanide hydrochloride. Polyhexamethylene biguanide hydrochloride is broad-spectrum antibacterial, has killing ability to Gram-positive bacteria, Gram-negative bacteria, fungi and yeast, and can be used to produce antibacterial paper for health and hygiene products to replace silver-containing libraries At the same time, the polyhexamethylene biguanide hydrochloride solution also improves the physical properties of the paper, water absorption, strength after being wetted with water, and air permeability, so it is a papermaking fungicide with excellent performance. The synergistic effect is a compound TS-302 papermaking fungicide with high efficiency and broad spectrum.

The invention discloses a non-vulcanized glue film of a hydrogenated butyronitrile-polyvinyl chloride blended emulsion and a preparation method and an application thereof, which belong to a chemical product and a preparation method thereof. The method is characterized in that: a non-vulcanized self-crosslinking HNBR (Hydrogenated Nitrile Butadiene Rubber) / PVC (Polyvinyl Chloride) latex film is prepared from HNBR or a HXNBR (Hydrogenated Carboxyl Nitrile Butadiene Rubber)-PVC blend emulsion by means of the self-crosslinking capability in the absence of a vulcanizing agent by using the self-crosslinking capability of HNBR or HXNBR latex with a latex steeping method. The method comprises the following steps of: uniformly mixing HNBR or HXNBR latex with a PVC emulsion to prepare a mixed latex emulsion; and steeping, leaching and drying the mixed emulsion to obtain a glue film product. A process of the non-vulcanized glue film has the advantages of simple and practicable process, low energy consumption, capability of self-crosslinking without adding any crosslinking agent and high performance.

The invention provides a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide nano-composite material and a preparation method thereof. The method is as below: using PS and sodium maleicacid fatty alcohol ester as copolymerization monomers, using the sodium maleic acid fatty alcohol ester as an emulsifier, and adding an initiator to prepare a pre-emulsion; with the sodium maleic acidfatty alcohol ester as a dispersing agent, pre-dispersing nano-Al2O3 in an aqueous solution, and adding PS to the above dispersion liquid to form an emulsion polymerization system; heating the aboveemulsion polymerization system to an initiation temperature, adding an initiator, and during the polymerization, gradually dropwise adding the pre-emulsion prepared in the step 1 to the emulsion polymerization system; and conducting complete reaction to obtain a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide copolymer emulsion. In the copolymer emulsion and copolymer microspherepowder, the aluminum oxide is dispersed at a nano level, and the dispersion state is uniform and stable; therefore, the method solves the problem of serious agglomeration of nanoparticles in the polystyrene-aluminum oxide composite material.