2823results about How to "Easy to prepare" patented technology

Thermoplasticity sizing agent for carbon fiber and preparation and usage thereof

ActiveCN102660874Alow costEasy to prepare
The invention provides a thermoplasticity sizing agent for a carbon fiber as well as a preparation method and a usage method thereof and relates to solvent sizing agent for a carbon fiber as well as a preparation method and a usage method thereof. According to the invention, the problems that the existing thermoplastic sizing agent is complicate in preparation process and pollutes the environment are solved. The preparation method is as follows: the thermoplastic resin, an organic solvent A and an adjuvant are mixed and stirred uniformly so as to obtain the thermoplastic sizing agent, when being used, the carbon fiber is dipped in the thermoplasticity sixing agent, then fractioning is carried out on the carbon fiber with agent and the treated carbon fiber is dipped in an organic solvent B, and finally the carbon fiber is dried. According to the invention, the wettability of the carbon fiber and the high performance thermoplasticity resin of polyarylether can be improved, the boundary bonding performance of the carbon fiber or the resin matrix composite of thermoplasticity polyarylether can be improved, and the thermoplasticity sizing agent has the advantages that the cost is low, the performance is stable, the utilization is stable and the environment is not polluted. The thermoplasticity sizing agent for the carbon fiber is used for the surface treatment of a carbon fiber material.

Phosphorus-containing crosslinked gel polymer electrolyte and on-site thermal-polymerization preparation method and application thereof

The invention belongs to the technical field of gel polymer electrolytes and particularly discloses a phosphorus-containing crosslinked gel polymer electrolyte and an on-site thermal-polymerization preparation method and application thereof. The preparation method comprises the steps of preparing the following raw materials, of which the total weight percent is 100%: 5-15% of polymerization monomers, 3-10% of crosslinker, 0.01-1.0% of thermal initiator and 75-90% of lithium-ion battery liquid electrolyte, uniformly mixing, and then, reacting for 20-100 minutes at the temperature of 75-150 DEG C under the protection of inert gas, thereby obtaining the phosphorus-containing crosslinked gel polymer electrolyte. The invention further discloses application of the phosphorus-containing crosslinked gel polymer electrolyte in the preparation of solid lithium-ion batteries. The invention provides novel phosphates and/or phosphonates, containing double bonds, which serve as monomers of the gel polymer electrolyte, and the phosphorus-containing crosslinked gel polymer electrolyte designed and synthesized from the monomers has the advantages of simple and convenient preparation method, high ionic conductivity, high thermal stability and good electrochemical stability, so that phosphorus-containing crosslinked gel polymer electrolytes with relatively good stability are provided for the practical application of the solid lithium-ion batteries and high-power lithium-ion batteries.

Preparation method of environmentally-friendly aqueous polyurethane adhesive

The invention discloses a preparation method of an environmentally-friendly aqueous polyurethane adhesive. The environmentally-friendly aqueous polyurethane adhesive is prepared from the following raw materials: polydiol with a number-average molecular weight between 500 and 5,000, a hydrophobic chain extender with a number-average molecular weight between 61 and 400, an inner-crosslinking agent,a hydrophilic chain extender, diisocyanate, a catalyst, an organic solvent, a neutralizing agent and deionized water. The preparation process comprises: heating the polydiol, the hydrophobic chain extender, the inner-crosslinking agent and the hydrophilic chain extender in a protective atmosphere of nitrogen, dewatering under vacuume and cooling; adding diisocyanate for reaction, cooling and adding a catalyst for a reaction; adding a proper amount of organic solvent for regulating viscosity; and adding aqueous solution of the neutralizing agent under the action of a high-speed shearing force to obtain the product. The product has the advantages of extremely low organic solvent content, high stability, insusceptibility to agglomeration and sedimentation, long storage period and low thermalactivation temperature, can be used for dry type combination and has the characteristics of high initial viscosity, high flexibility, high breathability, light odor and the like.

Iron-based catalyst for low-carbon olefin production through CO2 hydrogenation, and preparation and applications thereof

ActiveCN106031871AEasy to prepareLower catalyst costs
The present invention provides an iron-based catalyst for low-carbon olefin production through CO2 hydrogenation, wherein the main active component of the catalyst is Fe3O4, the auxiliary agent is added or is not added, and is an oxide, the content of the auxiliary agent accounts for 0-30% of the total mass of the catalyst, and the auxiliary agent is one or more than two selected from the oxide of Si, Al, Mn, K, Cu, Na, Zr, V, Zn and Ce. The present invention further provides a preparation method and applications of the catalyst. According to the present invention, the catalyst has the following beneficial effects that 1) the particles have characteristics of regular spherical shape, uniform spatial distribution, and narrow size distribution; 2) the raw materials are inexpensive and easy to obtain, and the preparation method has characteristics of simpleness and low cost, and is suitable for industrial production; 3) the catalyst has characteristics of high mechanical strength, good wear resistance and compression resistance, and is suitable for the fixed bed, the fluidized bed and the slurry bed; 4) the CO2 hydrogenation activity and the low-carbon olefin selectivity are high, the single-pass conversion rate can achieve more than 40%, the methane selectivity in the hydrocarbon product is lower than 15%, the low-carbon olefin selectivity is higher than 40%, the alkene/alkane ratio (O/P) is 2-12, and the yield of the low-carbon olefin can achieve 10-60 g/m<3> (CO2+H2).
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