98 results about "Cadmium stearate" patented technology

The invention discloses the preparation method of low cost cadmium selenide (CdSe) / cadmium sulphide (CdS) / zinc sulphide (ZnS) quantum point. The invention is characterized in that ethide xanthic acid cadmium and ethide xanthic acid zinc are adopted to be respectively dissolved in the mixed solvent of oleic amine and oleic acid, as well as cadmium stearate and zinc stearate; as the front dirking liquid of clads CdS and ZnS of a SdSe quantum point, the invention is slowly dropped into the mixed liquor of octadecene and octadecylamine dissolved with CdSe quantum point, so as to obtain CdSe / CdS / ZnS quantum points. The invention has the advantages that the price of the raw material is cheap, the toxicity is low, the operation is simple, and the mass synthesis is proper.

The invention discloses a method for preparing CdSe and ZnSe quantum dots nanometer particles. Aluminum powder and strong base solution are adopted for the reduction of selenium powder and sulphuric acid is added to generate hydrogen selenide, the hydrogen selenide is brought out by the flow of high purity nitrogen and dissolved in oil amine to obtain oil amine-hydrogen selenide composite; the oil amine-hydrogen selenide composite which is taken as a new selenium precursor, together with cadmium stearate and orzinc stearate, is used for preparing the CdSe and ZnSe quantum dots nanometer particles at high temperature; the prepared quantum dots nanometer particles have controllable spectrum and excellent performance and can be applied to the fields such as biological fluorescence label, optoelectronic materials, etc. Furthermore, the method for preparing quantum dots nanometer particles can avoid the adoption of trioctylphosphineoxide (TOP) which has strong toxicity and high price, and is low in cost and suitable for industrial production.

A process formula die carving includes compositions as the follows, 100 kg polyvinyl chloride in paste state, 80-100 kg dicapryl phthalate, 1-5 kg cadmium stearate, 1-5 g barium stearate, 0.5-2 kg bisphenol A and 0.01-1 kg dyestuff. The advantage of the present invention is using paste state polyvinyl chloride as main body, suspending each composition in dicapryl phthalate uniformly, plasticizing in not high temp and having excellent antidegradability.

The invention provides an anti-fogging and non-dropping film. The anti-fogging and non-dropping film comprises the following components in parts by weight: 70 to 200 parts of LLDPE (Linear Low Density Polyethylene), 15 to 50 parts of LDPE (Low-Density Polyethylene), 10 to 30 parts of EVA (Ethylene-vinyl Acetate), 20 to 50 parts of DOP (Dioctyl-Phthalate), 15 to 30 parts of BBP (Butyl Benzyl Phthalate), 0.5 to 2 parts of dibutyl tin dialurate, 3 to 7 parts of 2-ethylhexyl ester of epoxy fatty acids, 4 to 8 parts of tricresyl phosphate, 1.5 to 4 parts of glyceryl monolaurate, 1 to 6 parts of triphenyl phosphate, 0.2 to 0.8 part of ultraviolet light absorber, 0.5 to 0.9 part of calcium carbonate, 1 to 5 parts of cadmium stearate, 2 to 8 parts of barium stearate, and 0.2 to 0.7 part of sorbitan monostearate. The preparation method comprises the following steps of: drying LLDPE, LDPE and EVA under vacuum; adding other components; performing film blowing through a horizontal extruding and blowing method by utilizing a single-screw extruding film blowing device, thus obtaining the anti-fogging and non-dropping film. The anti-fogging and non-dropping film shows remarkable advantages that water on the surface of the film can flow into the soil along the surface of the film, thus moisture in the air in a greenhouse is reduced, and the anti-fogging effect is realized.

The invention discloses an anti-corrosion wear-resisting and ageing-resistant modified polyvinyl chloride (PVC) plastic composition, and relates to the technical field of plastics. The anti-corrosion wear-resisting and ageing-resistant modified PVC plastic composition comprises the following components by weight percent: 90-110g of polyvinyl chloride resin, 25-30g of dioctyl phthalate, 20-25g of dibutyl phthalate, 0.5-2g of barium stearate, 0.1-0.5g of paraffin, 0.5-1g of cadmium stearate, 0.1-0.5g of hindered amine optical stabilizer, 65-80g of ATO nano powder, 8-10g of modifier, and 8-10g of composite disperse modifier. By adopting the anti-corrosion wear-resisting and ageing-resistant modified PVC composition, the PVC has excellent performances such as corrosion resistance and abrasive resistance, can endure relatively high pressure, is not easy to form a dart, and can resist certain negative pressure.

The invention discloses antibacterial and ozone-resistant modified calcium carbonate. Antibacterial and ozone-resistant modified calcium carbonate is prepared from the following raw materials in parts by weight: 0.5-0.7 part of cadmium stearate, 2-3 parts of glycerin, 1-2 parts of activated carbon, 0.4-0.6 part of lanthanium stearate, 2-3 parts of nano attapulgite, 1-1.5 parts of oxidized polyethlene wax, 3-4 parts of barium hydroxide, 2-3 parts of tetrabutyl titanate, 1-2 parts of disproportionated potassium abietate, 2-2.5 parts of eleostearic acid, 4-6 parts of chlorinated polyethylene, 0.8-1.1 parts of nano silver, 0.1-0.2 part of sodium hydroxide, 80-85 parts of light calcium carbonate, 13-16 parts of an auxiliary agent and 120-140 parts of water. According to antibacterial and ozone-resistant modified calcium carbonate disclosed by the invention, the nano silver is added into a filling material to ensure that PVC (polyvinyl chloride) has permanent antibacterial performance; chlorinated polyethylene is added to ensure that the weather resistance, ozone resistance, chemical medicine resistance and aging resistance of the PVC can be increased, and good oil resistance, flame-retardant performance and coloring performance can be provided; by virtue of surface treatment, calcium carbonate disclosed by the invention has good compatibility with PVC, and can be used for improving the mechanical performance of PVC.

PVC artificial leather for handbags is prepared from the following components in parts by mass: 100 parts of PVC, 25-30 parts of DOP, 15-20 parts of DBP, 3-5 parts of DOS, 1-3 parts of epoxidized soybean oil, 3-5 parts of epoxidized zinc stearate easter, 10-15 parts of NBR, 0.5-1 part of zinc stearate, 0.5-1 part of cadmium stearate, 1-1.5 parts of barium stearate, 2-5 parts of an AC foaming agent, 5-10 parts of tricresyl phosphate and 0.3-0.5 part of pigments. The product can resist high temperature of 150-170 DEG C and low temperature of minus 35 DEG C, achieves the peel strength of 18-20 N / cm<2> and tensile strength of 15-25 MPa, avoids cracks when placed at the temperature of minus 35 DEG C for 25 h, is acid and alkali resistant, and wear resistant, can be widely produced and continuously replaces the conventional materials.

The invention discloses a PC (Poly Carbonate) scuffing-resistant lens and a preparation method thereof. The PC scuffing-resistant lens is prepared by the following steps of weighing PC, barium stearate, LDPE, cadmium stearate, maleic anhydride, dibutyl tin dilaurate, a heat stabilizer, silica, EVA, a NX8000 nucleating agent, a crosslinking agent, benzoic acid, hydrogenated butadiene, DOP and a styrene block copolymer according to weight ratio, kneading, carrying out extrusion pelletization, curing, trimming, rolling circle, plating a film, cleaning, drying, testing and then packaging. With the adoption of the PC scuffing-resistant lens, the product transmittance is 95-98 percent and is increased by 5-15 percent; the haze is 1-3 percent; the impact strength of a cantilever beam 900-1000J / m, and the impact strength of a notch at 30 DEG C below zero is 18-20kJ / m<2>; the refractive index is 1.8-2.0 and is increased by 0.2-0.5; the bending strength is 125-130MPa.

The invention provides an anti-aging injection molding formula which comprises the following raw materials of PVC resin, polycaprolactone, lignin, silicone oil, barium stearate, cadmium stearate, zincstearate, borax, methyl cellulose and calcium carbonate. Compared with the prior art, the anti-aging injection molding formula disclosed by the invention has the following beneficial effects that service life of a manufactured plastic product is greatly prolonged, PVC resin plasticizing time can be shortened, PVC resin processing fluidity is improved, an injection molded part has high strength and is not prone to be broken, and normal work of the injection molded part is ensured.

The invention discloses an ionic liquid-doped light bamboo-plastic material. The ionic liquid-doped light bamboo-plastic material is prepared from the following raw materials in parts by weight: 10-16parts of light calcium carbonate, 0.4-1 part of stannous octoate, 0.1-0.2 part of 1,2-dimethylimidazole, 110-130 parts of polypropylene, 10-14 parts of organic bamboo powder, 2-4 parts of isooctyl methacrylate, 0.8-1 part of dodecyl trimethyl ammonium chloride, 0.1-0.2 part of cadmium stearate and 0.8-1 part of 1-butyl-3-methylimidazole methanesulfonate. The bamboo-plastic material disclosed by the invention is light in weight, good in thermal stability and superior in comprehensive performance.