7results about How to "Small crystal size" patented technology

The invention discloses a conjugated polymer film with electrical properties and tensile stability simultaneously improved, and a preparation method and application thereof, and belongs to the technical field of flexible electronic materials. The preparation method comprises the following steps: placing the conjugated polymer film in a solution formed by mixing an electrolyte and a dopant, and soaking for 30-60 seconds to complete ion exchange doping, thereby obtaining the conjugated polymer film with various carrier transport channels. The strategy of increasing the types of carrier transmission channels is adopted, and two main transmission channels of a crystal phase and an accumulation region are formed in the conjugated polymer film through an ion exchange doping method, so that the conjugated polymer film can maintain the electrical property at a high proportion under a stretching external field, and the electrical property of the conjugated polymer film is improved under the same stretching strain. And the tensile stability of the conductivity is far higher than that of a conjugated polymer film which only takes a crystal phase or an accumulation region as a carrier transmission channel.

The present invention discloses a ZSM-23 zeolite and a process for preparing the same and use thereof. The total acid amount of said ZSM-23 zeolite is 0.05-0.25 mmol / g, preferably, 0.06-0.22 mmol / g, more preferably, 0.06-0.20 mmol / g; the strong acid content of said ZSM-23 zeolite is 5-33%, preferably, 7-33%, more preferably, 9-33%, or further preferably, 7-31%, further more preferably, 10-28% of the total acid amount; wherein the strong acid refers to an acid having a desorption temperature of 350°C or higher in an NH3 temperature programmed desorption (NH3-TPD). The ZSM-23 zeolite has a low strong acid content, and the preparation process of the ZSM-23 zeolite is simple.

The invention discloses lead-free powder glass for surface stabilization of a mesa type semiconductor device and application of the lead-free powder glass, the lead-free powder glass comprises base material powder and zinc oxide-containing crystal powder, the base material powder comprises the following components in percentage by weight: 50-70% of ZnO, 35-22% of B2O3, 15-25% of SiO2, 0.01-5% of RxOy and 20-15% of Y2O3 and / or GeO, and RxOy is at least one of SnO2 and the like; the zinc oxide-containing crystal powder is at least one of Zn4B6O13 and the like, and the D50 particle size of the powder glass is 1-10 [mu] m. According to the glass powder provided by the invention, various components in the base material powder of the zinc series glass powder are properly proportioned, Y2O3 and GeO2 are introduced to homogenize the glass, and Zn4B6O13 and other crystal powder containing zinc oxide are introduced to enable the crystal granularity of the glass powder to be small, so that the glass powder can be sintered and crystallized at the relative low temperature of 700-750 DEG C, and the glass powder has the advantages of high temperature resistance, high temperature resistance, high temperature resistance and the like. And the coefficient of thermal expansion after crystallization is close to that of a semiconductor material silicon wafer, so that the silicon wafer cannot be warped and cracked, and the reverse withstand voltage is improved.

The present invention discloses a composite proton exchange membrane and its preparation method and application, belonging to the field of new energy fuel cell technology. The method comprises the following steps: 1) preparing a proton conductor composed of iodine niobium oxide HNbO(IO3)4, boron phosphate BPO4 and inorganic oxide MO2; 2) mixing the proton conductor prepared in step 1 with a polymer matrix solution and forming a membrane by a casting method; 3) soaking in phosphoric acid to obtain a phosphoric acid-doped proton exchange membrane. Compared with the prior art, the composite proton exchange membrane prepared by the present invention has a higher proton conductivity at 100-200°C, a stronger phosphoric acid retention capacity, and the battery based on membrane assembly can operate stably at 100-200°C.

The application discloses a high-density high-purity polycrystalline kaolinite preparation method under hot isostatic pressing conditions. –3 The steel ladle is placed in a graphite furnace cylinder body of a hot isostatic pressing high-pressure container, and a graphite sealing cover is covered on the steel ladle; argon is used as a pressure transmission medium, a multi-gradient cylinder body temperature and pressure increasing mode is adopted, the pressure in the cylinder sample bin is increased to 105.8 MPa, the temperature is increased to 800 DEG C, and the temperature and pressure are kept for 4.8 hours; a multi-gradient cylinder body temperature and pressure decreasing mode is adopted, the temperature in the cylinder sample bin is decreased to 177 DEG C, and the pressure is decreased to 71.8 MPa; finally, the pressure is released, the temperature is decreased to room temperature, and the polycrystalline kaolinite aggregate is obtained; and the technical blank of preparing a high-density polycrystalline kaolinite aggregate bulk body rich in aluminosilicate mineral experimental samples under high-temperature and high-pressure conditions is solved.

This invention discloses a method for preparing high-density, high-purity polycrystalline barite polymers under hot isostatic pressing conditions, wherein barite sample powder is compacted and sealed to a vacuum degree of 10. –3 The sample was placed in a steel cladding with dimensions of 55.89 mm outer diameter × 88.76 mm height × 3 mm wall thickness. The cladding was then placed inside the graphite furnace cylinder of a hot isostatic pressure vessel and sealed with a graphite cap. Using argon as the pressure transfer medium, a multi-gradient cylinder heating and pressurization method was employed to raise the temperature inside the sample chamber to 950 °C and the pressure to 112.5 MPa. This pressure and temperature were maintained for 6.0 hours. A multi-gradient cylinder cooling and depressurization method was then used to lower the temperature inside the sample chamber to 178 °C and the pressure to 71.1 MPa. The pressure was then released and the sample was cooled to room temperature to obtain a polycrystalline barite polymer. This method filled the technical gap in the preparation of bulk sulfate experimental samples of high-density polycrystalline barite polymers under high temperature and high pressure conditions.

The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions. –3 The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions, which comprises the following steps: completely sealing trachyandesite sample powder in a ladle cover with a vacuum degree of 10 –3 Pa; placing the ladle cover in a graphite furnace cylinder body of a high-pressure container of a hot isostatic pressing device, covering a graphite sealing cover; taking argon as a pressure transmission medium; adopting a multi-gradient hot isostatic pressing forming process of first increasing pressure and then increasing temperature to increase the temperature in the cylinder body sample bin to 950°C and the pressure to 91.5 MPa, and keeping constant temperature and constant pressure for 6.8 hours; adopting a multi-gradient cylinder body temperature and pressure decreasing mode to decrease the temperature in the cylinder body sample bin to 176°C and the pressure to 58.7 MPa; and finally, decreasing the pressure and temperature to room temperature to obtain a polycrystalline trachyandesite aggregate sample; and the technical blank of preparing a large bulk experimental sample of high-densification polycrystalline trachyandesite aggregate under high-temperature high-pressure conditions is solved.