35results about How to "Optimizing the curing process" patented technology

The present invention proposes a porous C / C composite material and a preparation method thereof, which are obtained through a precursor impregnation-curing-cracking process, and the precursor is composed of resorcinol, formaldehyde and water. Under the action of saturated vapor pressure, the present invention forms pores by occupying water in the phenolic resin, and finally obtains a porous resin carbon matrix suitable for reactive infiltration with high porosity, uniform pore distribution and adjustable pore size distribution.

An ester cyanate resin system with organic titanium epoxy resin as catalyst is characterized by taking organic titanium modified epoxy resin as catalyst, which is obtained by reacting tetrabutyl titanate with hydroxyl in glycidol ether epoxy resin structure, and consisting of ester cyanate resin 70-99.99% and organic titanium epoxy resin catalyst 0.01-30%. It can improve curing process of resin system, lower curing temperature, shorten curing time and cost low.

The invention discloses a quantum dot film with high luminous efficiency and a preparation process thereof. The preparation process of the quantum dot film with high luminous efficiency comprises the following steps: in parts by weight, providing 80-150 parts of adhesive, 1-10 parts of inorganic particles, 1-10 parts of quantum dot concentrate and 0.1-5 parts of photoinitiator Parts, mixed and configured as a quantum dot layer coating solution; the first barrier film and the second barrier film are provided, and the quantum dot layer coating solution is coated between the first barrier film and the second barrier film to obtain a quantum dot film Preform: performing multi-stage curing treatment on the quantum dot film preform to obtain the quantum dot film. The present invention adopts the matching method of photoinitiator and multi-stage curing process, optimizes the curing process of quantum dot film, improves the curing efficiency and reduces the impact on quantum dots, and finally improves the stability of the optical properties of the quantum dot film and the stability of the product production process. yield.

The invention includes following procedures. (1) Immersion fluid is prepared from water-solubility fluorocarbon surfactant, adhesive and contact agent. (2) Fabric thread is dipped in the immersion fluid at room temperature. (3) Picking off immersion fluid. (4) Solidifying. The continuous heating curve for solidifying procedure is from room temperature to 60 deg.C for 0.5-1 hr., 60 deg.C to 80 deg.C for 0.5-1 hr., 80 deg.C to 100 deg.C for 15 - 30 minutes and 100 deg.C to 200 deg.C for 10-15 deg.C. The constituent of immersion fluid is water 100 portions, fluorocarbon surfactant 3-7 portions, adhesive 2-7 portions and contact agent 0.5-1.2 portions. The invented rope, strip and cloth made from insulated threads reaches or exceeds the national standard of insulation property for hot-line work.

A preparation method of arylboronic acid catechol ester modified phenolic resin comprises the steps that a boric acid catechol ester compound is added to phenolic resin under an inert atmosphere, heat treatment is performed at the temperature of 110 DEG C for 2 hours after even mixing, then curing is performed at the temperature of 160 DEG C for 2-4 hours to obtain the arylboronic acid catechol ester modified phenolic resin, wherein the mass of the boric acid catechol ester is 1-35% of the mass of the phenolic resin. The adverse influence brought by in-situ formation of a boric acid ester structure of an existing boric acid compound modified phenolic resin is overcome, and a composite material curing process is improved, so that a curing product has a compact structure and good properties, and cured resin has high thermal stability. The resin can be used as a high-performance composite material resin matrix, a carbon / carbon composite material, a high-temperature brake material, a frictional material, a heat insulation material, an adhesive, a coating and a flame retardant material and used in other high-tech fields.

The invention provides a preparation method of a C / SiC composite material. The C / SiC composite material is prepared by preparing a porous C / C composite material by means of an infiltration method. Asa special high-activity porous body C / C is adopted to reactive infiltration, the mechanical property and the anti- ablation property of the material are improved. The preparation method can be also applied to rapid low-cost preparation of a ceramic-based composite material.

The invention provides a self-adaptive hoisting device of a skylight assembly production line. The self-adaptive hoisting device is characterized by comprising a tray, a hoisting mechanism and a return mechanism; the hoisting mechanism comprises a lifting air cylinder and a lifting platform, the lifting platform is fixed on the lifting air cylinder, and the lifting platform moves up and down along the lifting air cylinder; the tray is arranged on the lifting platform; the return mechanism comprises return air cylinders which are uniformly distributed on the periphery of the lifting air cylinder, located below the tray and used for applying a downward force to the tray. The self-adaptive hoisting device has advantages that a semi-finished product can be rapidly and self-adaptively positioned on a new workstation; the rapid fixation of the semi-finished product after being positioned on the new workstation can be facilitated. By simply improving the mechanical structure, rapid transportation of the skylight semi-finished product between a main production line and a curing production line can be realized; by adding a horizontal floating support, a vertical floating support and the like, the problem that the semi-finished product cannot be rapidly and self-adaptively positioned can be solved, a vibration attenuation effect also can be realized, the installation and assembling quality of the skylight can be greatly improved, and the production efficiency can be improved.