60results about How to "Short bonding time" patented technology

The invention discloses a material for rapid three dimensional printing forming and a preparation method thereof. The material comprises a modifying powder material A and bonding agent B, wherein preparation method of the modifying powder material A comprises the following steps: adding powder material and a first solvent into a ball mill or grinding mill, and milling to obtain a pretreated powder material; adding surfactant, lubricant and organic resin into a second solvent in sequence, and stirring and dispersing for 2-3 hours to obtain modifying solution; mixing the pretreated powder material and the modifying solution, adding into the grinding mill, mixing and milling at normal temperature, drying, grinding, and pulverizing to obtain the modifying powder material A. When in use, one weight part of the modifying powder material A and 0.01-0.07 weight parts of the bonding agent B are blended. The material provided by the invention is used as the raw material for a rapid three dimensional printing forming machine, and can be used for effective rapid forming on different types of three dimensional printing machines.

The disclosure provides a production method and production line for pre-printed surface paper corrugated boards, and the production method and production line provided by the invention can be used for solving the problem that the existing corrugated board production line and process cannot adapt to the production of pre-printed colorful corrugated boards. In the disclosure, because the bonding mode that surface paper is arranged on a single-face corrugated board is adopted, the direct contact between color-printed paper and a high temperature heating plate of a drying part can be avoided, thereby effectively preventing the damages on the materials, patterns, gloss oil and plastic films of the color-printing paper. The disclosed corrugated board production method and corrugated board production line can effectively adapt to the application requirements of pre-printed colorful paper on the premise of not increasing the cost.

It is a X-ray mask and quartz ring ultraviolet solidifying apparatus, which comprises the following: a X-ray mask workbench which comprises X-azimuth handwheel, Y-azimuth handwheel and rotation handwheel around Z axis; a vacuum clamping device located under the workbench to vacuum adsorb the X-ray mask through tube channel, wherein, the X-ray mask workbench is mainly used to locate the X-ray mask to be ultraviolet solidified; a quartz ring workbench under the X-ray mask workbench to prevent the deformation of the X-ray mask workbench; a ultraviolet light source under the quartz ring workbench; a parallel lens located between the quartz ring workbench and ultraviolet light source; a microscope under the X-ray mask workbench to observe the calibration status; the above X-ray mask workbench, quartz ring workbench, ultraviolet source ,parallel lens and microscopes.

The invention discloses a polysaccharide-based tissue bonding medical adhesive and application thereof. The polysaccharide-based tissue bonding medical adhesive is composed of a polysaccharide derivative and a compound with at least two reaction functional groups, wherein the polysaccharide derivative and the compound with at least two reaction functional groups generate a bonding effect through one or more of a physical effect and a chemical reaction; and the polysaccharide derivative is polysaccharide after functional group substitution. The polysaccharide-based tissue bonding medical adhesive can bear relatively large tension, has relatively short tissue bonding time and relatively high tissue stripping force compared with a cyanoacrylic acid medical adhesive, can realize rapid bonding and sealing of wounds, has strong adhesion with tissues after being applied, is not easy to strip, can be suitable for stretched wounds, and can realize effective closing.

The invention discloses a double-component silicone structural sealant for heat mirror hollow glass and a preparation method of the sealant. The sealant comprises a component A and a component B, wherein the component A comprises hydroxyl-terminated polydimethylsiloxane, alkyl-terminated polydimethylsiloxane, hollow microsphere, ceramic microbead, metal hydroxide, metal oxide, activated calcium carbonate, inorganic pigment and a surfactant; the component B comprises alkyl-terminated polydimethylsiloxane, a coupling agent, a cross-linking agent, a catalyst, an inhibitor, a thickening agent, and silicon dioxide. The preparation method of the sealant comprises the following steps: 1) taking each ingredient in the component A to be mixed uniformly under the vacuum condition; 2) taking each ingredient in the component B to be mixed uniformly under the vacuum condition; 3) mixing the component A and the component B at room temperature according to the weight ratio of (8:1) to (20:1), and at last obtaining the sealant. The double-component silicone structural sealant is good in adhesiveness, high in curing speed, good in sealing performance, high in hardness and modulus, and excellent in thermal barrier effect, and suitable for sealing and bonding of heat mirror film, glass and metal materials etc.

The invention discloses a polysaccharide-based tissue bonding medical adhesive and application thereof. The polysaccharide-based tissue bonding medical adhesive is prepared from a polysaccharide derivative and a compound with at least two reaction functional groups, wherein the polysaccharide derivative and the compound with at least two reaction functional groups generate a bonding effect through one or more of physical action or chemical reaction; and the polysaccharide derivative is polysaccharide substituted by functional groups. The polysaccharide-based tissue bonding medical adhesive can bear larger tension; compared with a cyanoacrylate medical adhesive, the polysaccharide-based tissue bonding medical adhesive has the advantages of shorter tissue bonding time and higher tissue stripping force, and can realize quick bonding and sealing of wounds; and meanwhile, after application, the polysaccharide-based tissue bonding medical adhesive has strong adhesive force with tissues, is not easy to strip, can be suitable for stretched wounds, and can realize effective closing.