33results about How to "Physical properties are not affected" patented technology

The invention discloses a paste-like water-based rubber release agent and its preparation method and application method. Its components include 3-15 parts of inorganic powder additives, 0.1-1.0 parts of anionic surfactant, and 0.5-1.0 parts of anionic surfactant in parts by mass. 5.5 parts of nonionic surfactant, 5-10 parts of thixotropic agent, 0.2-2.0 parts of thickener, 0.1-0.5 parts of defoamer, 60-100 parts of deionized water. Mix water and surfactant, stir to dissolve, add inorganic powder additives, add defoamer dropwise, add thixotropic agent and thickener in batches, stir well and grind until homogeneous to obtain the release agent. When in use, make an aqueous solution at a mass ratio of 1:3 to 15, add it to the water cooling tank of the film, the film is cooled by water while the release agent is applied, and it can be stacked after air drying on the hanging rod. The invention is easily soluble in water, non-toxic, tasteless, simple in process and low in cost, and basically has no influence on the subsequent processing performance of rubber.

The invention belongs to the technical field of high molecular alloy materials, and particularly relates to a high-hardness high-transparency high-flowability PC (polycarbonate) alloy and a preparation method thereof. The PC alloy comprises the following components in parts by weight: 80-95 parts of PC resin, 10-20 parts of PS (poly styrene), 6-10 parts of transparent toughener, 1-5 parts of SMA (styrene maleic anhydride) random copolymer, 0.06-0.1 part of transparent PC halogen-free flame retardant, 0.2-2 parts of main antioxidant, 0.2-2 parts of auxiliary antioxidant and 0.2-1 part of silane coupling agent. Alternatively, the PC alloy comprises the following components in parts by weight: 80-95 parts of PC resin, 6-10 parts of transparent toughener, 10-20 parts of SMA random copolymer, 0.06-0.1 part of transparent PC halogen-free flame retardant, 0.2-2 parts of main antioxidant, 0.2-2 parts of auxiliary antioxidant and 0.2-1 part of silane coupling agent. According to the invention, the PC alloy material is prepared through a melt blending method, the preparation method is convenient, the technological operation is easy to realize, the cost is low, and the period is short; and the surface hardness and flowability of the alloy are simultaneously improved under the condition of keeping high transparency, so that the alloy has excellent physical and chemical properties on the whole. Thus, the invention is suitable for popularization.

The invention provides a light corrosion resistant ABS (acrylonitrile-butadiene-styrene) composition, a light-passing plate and an air conditioner. The light corrosion resistant ABS (acrylonitrile-butadiene-styrene) composition comprises the following components by mass: 100 parts of ABS resin, 0.1-1 part of TiO2, 0.1-0.5 part of a light stabilizer, 0.1-1 part of an antioxidant and 0.1-1 part of a processing aid. On the premise of guarantee of material mechanical strength, the light corrosion resistant ABS composition provided by the invention has good light transparency and glossiness, and has the light corrosion resistant effect, therefore, after long-term exposure to a LED light source, a panel of the air conditioner made of the light corrosion resistant ABS composition is free of color difference in display, and the panel has a good display effect, and user satisfaction can be improved.

The invention relates to a high-tenacity waterproof and fireproof board specially used for a tunnel and a preparation method thereof, wherein the high-tenacity waterproof and fireproof board is made by pressing one or two kinds of medium-alkali glass fiber cloth and non-woven fabric which are taken as basal materials and waterproof and fireproof components; and the waterproof and fireproof components comprise the following components in percent by weight: 48.7-29.8 percent of magnesium oxide, 2.4-7.4 percent of expanded perlite, 4.4-19.9 percent of filling aggregate, 43.9-37.2 percent of magnesium chloride, 0.12-3.89 percent of medium-alkali glass fiber yarn, 0.24-1.07 percent of polybutadiene epoxy resin and 0.24-0.74 percent of aluminum dihydrogen phosphate water-repellent agent. By adopting the effective matching of the components, the invention can greatly improve the fire resistance endurance and the tenacity of boards to better apply to the tunnel.

The invention discloses an object-image equidistant limited far conjugation optical system. The system comprises a first lens and a second lens which are sequentially arranged in the optical axial direction to formed a first doublet lens and a third lens and a fourth lens which form a second doublet lens, the optical power of the first doublet lens is 0.0206, the optical power of the second doublet lens is 0.0115, and the total optical power of the system is 0.0278. The system has the advantages that light emitted by a system object point passes through the first doublet lens group to generatea positive spherical aberration, the light reaches the second doublet lens group to achieve the purpose of correcting the spherical aberration, and finally high-quality imaging with completely corrected advanced aberration is obtained on an image plane. The system has the advantages that the working distance is long, the system can be used for measuring workpieces with different sizes and surfacetypes, a symmetric structure is adopted to eliminate comatic aberration, rayleigh criterion is met, measuring damage can be avoided by non-contact type measuring, the structure is simple, the cost islow, and the application is wide.

The invention discloses a preparation method of graphene, which comprises the following steps: 1) dispersing graphite in an organic foaming agent solution, stirring at constant temperature for 30 minutes-1 hour, and carrying out ultrasonic oscillation for 10-30 minutes; 2) keeping the product in the step 1) at constant temperature in a 150-280-DEG C oil bath for 30 minutes-5 hours; 3) cooling the product in the step 2) to normal temperature, adding into a mixed solution of ethanol and concentrated nitric acid in a volume ratio of 30:1-50:10 to form a uniformly-dispersed 0.003-0.05g / mL suspension, carrying out hydrothermal reaction on the suspension at 80-160 DEG C for 6-48 hours, cooling the suspension, filtering, precipitating, washing, and drying; and 4) adding the product in the step 3) into a sodium hydroxide solution with the pH value of 7.5-11, and stirring at 180-260 DEG C for 30 minutes-1 hour. The preparation method disclosed by the invention greatly enhances the graphene yield.

The invention relates to a transparent halogen-free flame-retardant polycarbonate resin. The resin comprises the following components in percentage by weight: 98.4-99.75% of flame-retardant master batches, 0.05-0.6% of a fire retardant, 0.1-0.5% of an antioxidant and 0.1-0.5% of a lubricant. The preparation method comprises the following steps: preparing materials according to the components, adding PC, the fire retardant, the antioxidant and the lubricant in percentage by weight into a high-speed mixing machine, sufficiently mixing the PC, the fire retardant, the antioxidant and the lubricant, and placing the PC, the fire retardant, the antioxidant and the lubricant, which are mixed, into a screw rod machine for extruding and pelleting so as to obtain flame-retardant master batches; adding the flame-retardant master batches and the rest of the components into the high-speed mixing machine together, sufficiently mixing the flame-retardant master batches and the rest of the components, and then placing the flame-retardant master batches and the rest of the components, which are sufficiently mixed, into the screw rod machine for extruding and pelleting so as to obtain products. Compared with the prior art, the method disclosed by the invention fully uses phenyl butyl sulfonic acid potassium as the fire retardant, after the fire retardant, the antioxidant, the lubricant and the flame-retardant master batches are mixed, extruded and pelleted, the whole preparation technology is simple, a complex ladder temperature control step is not needed, the obtained products have the characteristics of transparence, thin walls, high impact strength, excellent flame retardant property, zero toxicity and zero harm, and the application range is wide.

The present invention provides a transparent electrode and a preparation method thereof; the transparent electrode of the present invention includes: a transparent substrate and a first high dielectric film layer, a metal film layer, and a second high dielectric film layer sequentially arranged on the transparent substrate; The metal film layer mentioned above is a continuous metal film layer; the dielectric constant of the high dielectric film layer is greater than or equal to 6.25. The invention utilizes the electromagnetic resonance characteristic of the high dielectric material to realize the design and preparation of the transparent electrode material with high conductivity and high light transparency. The transparent electrode of the present invention utilizes the electromagnetic resonance characteristics of the high dielectric film layer and its coupling input and output effects with incident light; the composite structure of the high dielectric film layer and the continuous metal film layer can provide broadband light transparency and cover the spectrum range From visible light to infrared light, it greatly expands the optoelectronic application range of this type of transparent electrode in different frequency bands; at the same time, it has strong bending and flexibility, and is easy to integrate with external structural units including other active layers or photoelectric control modules or flexible substrates integration.

The invention discloses a preparation method of eucommia gum mixed rubber for normal temperature molding processing, and relates to a rubber molding processing method. Put the rubber into an internal mixer, screw extruder or open mill for mastication, then mix the parked natural rubber with 20-60 parts of carbon black, 30-80 parts of white carbon black, plasticizer 2 ‑10 parts, made of raw rubber masterbatch, parked for 2‑24 hours; put Eucommia gum into a banbury mixer, screw extruder or open mixer for mastication and add other compounding agents to make Eucommia gum compound rubber; put Unparked eucommia mixed rubber and raw rubber masterbatch are added to the internal mixer or open mixer (operated at a low temperature of 25°C-35°C) at the same time, mixed evenly, and then released into tablets. The invention effectively reduces the hardness of Eucommia gum and its mixed rubber, increases the plasticity of Eucommia gum mixed rubber, ensures the plasticity of normal mixed rubber, facilitates a series of operations such as calendering, extrusion and molding under normal conditions, and has the advantages of Good practical application value.

The invention discloses an environment-friendly rubber isolation agent. The isolation agent comprises the following components in parts by weight: 24-36 parts of polyoxyethylene sorbitan monooleate, 2-4 parts of waterborne polyamide wax, 30-38 parts of calcium stearate, 18-30 parts of hydrated silicon dioxide, 8-14 parts of potassium stearate, 2-5 parts of silicone oil defoaming agents and 2-6 parts of sodium carboxymethylcellulose. The isolation agent is excellent in compatibility, long in actual effect and low in addition amount, and is green and environmentally friendly; the preparation process of the environment-friendly rubber isolation agent is simple and feasible; the cost is low.