55 results about "Azocane" patented technology

A conductive coating composition includes 0.1 to 10 parts by weight of a conductive polymer, 5 to 30 parts by weight of polysilazane, and 30 to 60 parts by weight of a solvent.

A surface treatment process comprises (a) providing at least one substrate having at least one major surface; (b) combining (1) at least one curable oligomeric or polymeric polysilazane comprising at least one chemically reactive site, and (2) at least one fluorochemical compound comprising (i) at least one organofluorine or heteroorganofluorine moiety that comprises at least about six perfluorinated carbon atoms, and (ii) at least one functional group that is capable of reacting with the polysilazane through at least one of the chemically reactive sites; (c) allowing or inducing the polysilazane and the fluorochemical compound to react to form at least one curable organofluorine-modified polysilazane; (d) applying the curable organofluorine-modified polysilazane or its precursors to at least a portion of at least one major surface of the substrate; and (e) curing the curable organofluorine-modified polysilazane to form a surface treatment.

The invention relates to a high temperature resistant defoaming agent and application thereof in delay coking, the defoaming agent is prepared by compounding fluorine-containing polysiloxane, hyperbranched polyether, modified nano silica, vinyl-containing polysilazane and a solvent under certain conditions. A preparation method of the defoaming agent is as follows: dispersing required specifications of the fluorine-containing polysiloxane, the hyperbranched polyether and the modified nano silica in the solvent at a constant temperature of 60-100 DEG C, then cooling to room temperature, mixing, simultaneously adding the vinyl-containing polysilazane, and then filtering away non-homogeneous impurities to obtain the defoaming agent finished product. The efficient multi-active-component defoaming agent used in the delay coking process has good defoaming and anti-foaming properties at a high use temperature, also can maintain the high chemical stability, and is not easy to generate low-boiling-point silicon-containing small molecules cyclized compounds, and the adverse influence of the defoaming agent on the subsequent processing process can be avoided.

The invention relates to the field of polymer materials, in particular to a preparation method and application of a polysilazane material. The method comprises the following specific steps of obtaining a first polysilazane solution by means of a preset synthesis method; diluting the first polysilazane pyridine solution with an organic solvent to obtain a second polysilazane solution; adding an initiator into the second polysilazane pyridine solution and stirring the mixture for a reaction to obtain the polysilazane material. According to the preparation method, the initiator capable of generating free radicals is added into the polysilazane solution, so that a crosslinking reaction among small-molecule polysilazanes is promoted, the reaction conditions are mild, and the molecular weight ofthe polysilazane material is further increased.

The present invention provides a composition for forming a coating layer having excellent gas barrier performance and a method of forming the coating layer. A composition for forming a coating film comprises a specific silicon compound which reacts with a polysilazane by exposure, a polysilazane and an organic solvent, and a method for forming a coating layer comprises coating the composition on asubstrate and exposing.

[Problem] To provide a coating composition, which can reduce a load to the environment and form a cured layer having corrosion resistance, antifouling property and high transparency.[Means for Solution] A coating composition comprising (A) a polysilazane having alkoxy-modified silane group in a side chain, (B) non-reactive polydialkylsiloxane and (C) reactive polydialkylsiloxane, and a obtained cured layer therewith.

A thin film containing boron and a borazine ring structure is formed on a substrate by performing a cycle a predetermined number of times under a condition where the borazine ring structure is preserved in a borazine compound. The cycle includes: supplying a source gas containing boron and a halogen element to the substrate; and supplying a reactive gas including a borazine compound to the substrate.

Systems and methods for silosilazanes, silosiloxanes, and siloxanes as additives for silicon-dominant anodes in a battery that may include a cathode, an electrolyte, and an anode active material. The active material may comprise 50% or more silicon as well as an additive including one or more of: silosilazane, silicon oxycarbides, and polyorganosiloxane. The silosilazane may comprise one or more amine groups, silanols, silyl ethers, sylil chlorides, dialkylamoinosilanes, silyl hydrides, and cyclic azasilanes. The active material may comprise a film with a thickness between 10 and 80 microns. The film may have a conductivity of 1 S / cm or more. The active material may comprise between 50% and 95% silicon. The active material may be held together by a pyrolyzed carbon film. The anode may comprise lithium, sodium, potassium, silicon, and / or mixtures and combinations thereof. The battery may comprise a lithium ion battery. The electrolyte may comprise a liquid, solid, or gel.

A method for repelling arthropods involving treating an object or area with an arthropod repelling effective amount of at least one compound having the formulawherein X is O, S, NH, N-NH2, N-CH3 or CH2, R′ is H or alkyl, R″ is alkyl, n is 0, 1, 2, 3 or 4, and mixtures thereof, optionally including a carrier material or carrier. The compound is preferably selected from homopiperazine, 1-methylhomopiperazine, 1-methylpyrrolidine, (R)-(−)-2-methylpiperazine, (S)-(+)-2-methylpiperazine, 2-methylpiperazine, 1-methylpiperazine, pyrrolidine, 1-methylpiperidine, piperidine, 1-ethylpiperazine, 1-methylimidazolidine, 1-methylthiomorpholine, 1,4-dimethylpiperazine, homopiperidine, imidazolidine, 4-methylpiperidine, thiomorpholine, 1-amino-4-methylpiperazine, 4-methylmorpholine, azocane, 2,6-dimethylpiperazine, 2,5-dimethylpiperazine, piperazine, 1-methlyhomopiperidine, or mixtures thereof.

The invention discloses a plant type vapor phase copper corrosion inhibitor and a preparation method thereof. The volatile matter of the corrosion inhibitor contains 5wt%-20wt% of dipropenyl trisulfide, 2wt%-10wt% of dipropenyl disulfide, 2wt%-10wt% of 1-oxygen-4,6-disulfide Azoctane‑5‑thione and 30wt%‑50wt% eucalyptol. It is a mixture of garlic extract and bay leaf extract in a weight ratio of 3:1. The plant-type gas-phase copper corrosion inhibitor provided by the invention has obvious corrosion inhibition effect, simple preparation method, safety, non-toxicity and environmental friendliness.

The invention relates to a method for preparing Si3N4 / SiO2 coaxial nano-cable array with high purity, high density and high yield by using Si3N4 as an inner core and SiO2 as a housing, belonging to the technical field of material preparation. In the method, pyrolytic organic precursor is adopted to synthesize the Si3N4 / SiO2 coaxial nano-cable array on a substrate plated with metal catalyst. The method comprises: (1) polysilazane with high nitrogen content is crosslinked and cured at the low temperature of 160-300 DEG C, so that semitransparent amorphous SiCN solid can be obtained; (2) after being crosslinked and cured, the amorphous SiCN solid is processed by high energy ball-milling and crushed in a highly abrasion resistant appliance; (3) after high energy ball-milling, the obtained precursor powder is processed by pyrolysis and then evaporatedunder the protection of carrier gas containing a certain amount of oxygen, and then is deposited on the substrate plated with the metal catalyst film, so that the Si3N4 / SiO2 coaxial nano-cable array is obtained. The method has simple synthesis technique and equipment, strong controllability of technological parameters and low cost; the obtained Si3N4 / SiO2 coaxial nano-cables grow orderly, and arehigh in yield, density and purity as well as uniform in diameter distribution. The structure of the synthesized coaxial nano-cables has wide application prospect in the aspects of an atomic force microscope, a near-field optical microscope, nano mechanical probe, novel nano composite material reinforcing agent, etc.

The present invention is directed to a color-pigmented paint composition with high hiding power, comprising a solvent or a solvent mixture and a.) based on the total formulation, 1% to 80% by weight of a polysilazane of the formula (1) —(SiR′R″—NR′″)n−  (1) and b.) based on the total formulation 1% to 15% by weight, particularly 2% to 8% by weight, of one or more pigments wherein R′, R″, and R″′ are alike or different and independently of one another are hydrogen or an unsubstituted or substituted alkyl, aryl, vinyl or (trialkoxysilyl)alkyl radical, n being an integer and n having a magnitude such that the polysilazane has a number average molecular weight of 150 to 150 000 g / mol.

The invention relates to a high temperature resistant defoaming agent and application thereof in delay coking, the defoaming agent is prepared by compounding fluorine-containing polysiloxane, hyperbranched polyether, modified nano silica, vinyl-containing polysilazane and a solvent under certain conditions. A preparation method of the defoaming agent is as follows: dispersing required specifications of the fluorine-containing polysiloxane, the hyperbranched polyether and the modified nano silica in the solvent at a constant temperature of 60-100 DEG C, then cooling to room temperature, mixing, simultaneously adding the vinyl-containing polysilazane, and then filtering away non-homogeneous impurities to obtain the defoaming agent finished product. The efficient multi-active-component defoaming agent used in the delay coking process has good defoaming and anti-foaming properties at a high use temperature, also can maintain the high chemical stability, and is not easy to generate low-boiling-point silicon-containing small molecules cyclized compounds, and the adverse influence of the defoaming agent on the subsequent processing process can be avoided.

The invention discloses a gradient double-atmosphere non-melting method for polysilicon (bor) azane fiber, which includes: (1) placing the raw material fiber in a non-melting atmosphere furnace, vacuuming and replacing it with nitrogen; (2) raising the temperature to 150 ~200°C, every time the temperature rises from 50°C to 10~30°C, keep warm for 5~180min; pass active gas I and nitrogen according to the flow ratio (1:0)~(1:10); (3) Replace with nitrogen Active gas Ⅰ; (4) Pass active gas Ⅱ and nitrogen according to the flow ratio (1:0)~(1:3), and continue to heat up to 250~400°C, and keep warm at 250~400°C for 30~120min, Infusible fibers are obtained. In the present invention, the raw material fibers are fully reacted with two kinds of active chemical atmospheres through gradient heating, so that the core and surface of the polymer fibers are uniform and highly efficient without melting. Compared with the prior art, the present invention effectively avoids the heterogeneity of crosslinking on the surface and inside of the fiber caused by the gas-solid heterogeneous phase reaction, makes the core and surface structure more uniform, and has a higher degree of non-melting crosslinking.

A method for producing a decorative part which comprises a visible side with a decorative layer and a mounting side with a substrate layer, wherein a polysilazane-containing composition is applied to the visible side of the decorative layer to form a cover layer and is subsequently cured. The invention also relates to a decorative part producible by the method.