3results about How to "Reduce high temperature viscosity" patented technology

The application belongs to the technical field of alkali-free glass fiber, and particularly relates to a modified low-boron and low-fluorine alkali-free glass fiber composition and a preparation method thereof. The modified low-boron and low-fluorine alkali-free glass fiber composition comprises the following components: SiO2, Al2O3, B2O3, CaO, MgO, Fe2O3, TiO2, F2, R2O, X2O3, Li2O and ZnO, wherein R2O is a mixture of K2O and Na2O, and X2O3 is a mixture of La2O3 and Y2O3. The application provides the modified low-boron and low-fluorine alkali-free glass fiber composition and the preparation method thereof. Through the introduction of rare earth elements and the synergistic effect of Li2O and B2O3 components, the problems of high viscosity, high crystallization risk and narrow temperature window of the existing low-boron and low-fluorine glass fiber are effectively solved while the content of boron and fluorine is greatly reduced, and the elastic modulus, breaking strength and water resistance of the glass fiber are significantly improved.

This invention belongs to the field of asphalt modification technology and discloses a high-performance rubber composite modified asphalt and its preparation method. The high-performance rubber composite modified asphalt is prepared by mixing asphalt and a high-performance rubber composite granular modifier. The high-performance rubber composite granular modifier is obtained by extruding and granulating a novel thermoplastic elastomer, desulfurized rubber powder, and a rubber deodorizer using a multi-stage screw extruder. The novel thermoplastic elastomer is obtained by chemical grafting of a moderately pyrolyzed rubber polymer, a thermoplastic elastomer, and a second free radical scavenger. The desulfurized rubber powder is obtained by high-temperature oxygen-free degradation of a second rubber powder and a third free radical scavenger. Compared with traditional rubber composite modified asphalt, the modified asphalt of this invention exhibits superior high and low temperature performance, heat and oxygen aging resistance, and storage stability. It also has good workability, minimal performance degradation during long-term high-temperature storage, significantly reduced odor emissions, and a more stable and lasting odor-neutralizing effect.

The application discloses high-stickiness modified emulsified asphalt as well as a preparation method and application thereof. The high-stickiness modified emulsified asphalt comprises high-stickiness modified asphalt and a soap solution of the emulsified high-stickiness modified asphalt. The high-stickiness modified asphalt comprises, in terms of mass fractions, 35.0-45.0 parts of base asphalt, 5.0-6.0 parts of SEBS, 5.0-6.0 parts of SBR, 1.0-2.0 parts of maleic anhydride grafted wax, 1.5-2.0 parts of rubber oil and 0.1-0.2 parts of sulfur. The soap solution comprises, in terms of mass fractions, 1.0-1.5 parts of an emulsifier, 1.5-2.5 parts of phosphoric acid and 35.0-45.0 parts of water. The high-stickiness modified emulsified asphalt is prepared by optimizing raw materials and a formula, reduces the high-temperature viscosity of high-stickiness asphalt, solves the emulsification difficulty, and has corresponding improvement in normal-temperature performance and storage stability of the asphalt, thereby improving the performance of the high-stickiness modified emulsified asphalt and products.