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237 results about "MIXTURE COMPONENT" patented technology

The individual distributions that are combined to form the mixture distribution are called the mixture components, and the probabilities (or weights) associated with each component are called the mixture weights. The number of components in mixture distribution is often restricted to being finite, although in some cases the components may be ...

Microporous polyurethane elastomer compound with excellent dynamic performance and preparation method thereof

InactiveCN102585162AMixes easily and mixes wellWell mixedPolyurethane elastomerDynamic stiffness
The invention belongs to the field of polyurethane elastomer synthesis, and particularly relates to a preparation method of a microporous polyurethane elastomer compound with excellent dynamic performance. The compound is characterized in that the compound consists of a polyol mixture component and a modified isocyanate component. The preparation method has the advantages as follows: (1) a quasi-prepolymer method is adopted to process microporous polyurethane elastomer material, the two components has similar viscosity and similar mass mixing ratios, the material mixing temperature is low, the materials are easy to mix evenly, the process control condition is simple, and the operation is easy; and (2) the microporous polyurethane elastomer material prepared by using the compound disclosed by the invention has the advantages that a ratio of dynamic stiffness to static stiffness is smaller than or equal to 1.35, the impact elasticity is larger than or equal to 75 percent, the appearance is not damaged after 3,000,000 times of fatigue tests and the dimensional change rate is smaller than or equal to 20 percent, so that the compound can be used for preparing high-performance products such as damping cushion blocks of high-speed railways and damping elements of automobiles.
Owner:SHANDONG INOV POLYURETHANE

Adhesive with insulating and heat-conducting properties used at ultralow temperature

The invention relates to an adhesive with insulating and heat-conducting properties used at an ultralow temperature, the adhesive being a two-component adhesive obtained by mixing a mixture component A and a curing agent and conducting a curing reaction. Curing conditions of the curing reaction are heating the mixture at a temperature of 25 DEG C for 24 hours and then raising the temperature to 150 DEG C to heat for 6 hours. The mixture component A is a mixture obtained by uniformly mixing 100 parts by weight of epoxy resin, 6 parts by weight of silane coupling agent, and 100-1000 parts by weight of heat-conducting powder filler in a mechanical manner, wherein the heat-conducting powder filler is composed of 0-60 wt% of metallic heat-conducting powder and 40-100 wt% of nonmetallic heat-conducting powder. The adhesive of the invention has excellent insulating and heat-conducting properties at ultralow temperature, can overcome the disadvantages that existing heat-conducting adhesives can not be used at ultralow temperature and has bad heat conductivity at ultralow temperature, contains no diluents added during preparation and causes no pollution induced by micro-molecule volatilization in the cuing reaction.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Multistage hydrogen dissolution liquid phase hydrogenation reaction method

The invention relates to a multistage hydrogen dissolution liquid phase hydrogenation method. The method is as below: mixing a cycle liquid material with raw oil, and heating in a heating furnace; introducing the hydrogen divided into n paths into a heating furnace for heating; mixing a first path of hydrogen and liquid phase material in a mixer to conduct a first stage of hydrogen dissolution, sending the rest (n-1) paths of hydrogen through an inlet of a reactor bed layer into a hydrogen oil mixture component of the reactor, and mixing the (n-1) paths of hydrogen with a mixture from reaction of a previous bed layer, so as to conduct a second stage of hydrogen dissolution, conducting stripping to obtain reaction by-products hydrogen sulfide and ammonia, arranging a reaction pressure control system on the top of the reactor, and arranging an exhaust system in each stage of reactor; and sending the reaction products into a stripping tower, arranging a hydrogen oil mixer in the stripping tower, conducting stripping to obtain by-products hydrogen sulfide and ammonia to enhance hydrogen solubility, sending part of the oil product from tripping into a product tank, and a recycling the other part of the oil product. The method discharges hydrogen sulfide and ammonia from the reactor system while conducting a catalytic hydrogenation reaction, a solid-phase catalyst contacts with a liquid phase reactant to improve the efficiency of reaction.
Owner:PETROCHINA CO LTD
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