3results about How to "Prevent excessive volatilization" patented technology

The invention relates to the field of glass, in particular to ultrathin flexible cover plate glass as well as a preparation method and application thereof. The glass is composed of 10-30% of UTG cullet and 70-90% of a specific batch and contains SiO2, Al2O3, Na2O and the like, and the decolorizing agent is prepared by compounding NaNO3 and K2O according to the ratio of 1: 0.2-1: 1. The preparation method comprises the following steps: adding cullet at 1000 DEG C and 1200 DEG C in two stages, carrying out heat preservation and homogenization at 1200-1300 DEG C for 30-60 minutes, and carrying out melting clarification at 1500-1600 DEG C and temperature-controlled annealing. The thickness of the obtained glass is 30-70 microns, the surface pressure stress after chemical strengthening is larger than or equal to 680 MPa, and the bending radius is smaller than or equal to 1.8 mm. According to the method, by means of collaborative design of components and the process, high performance is guaranteed, waste recycling is achieved at the same time, and the method is suitable for folding mobile phones, flexible OLEDs and other devices.

The invention belongs to the field of rubber materials, and provides a rubber composition for a tire steel wire belt layer and a preparation method thereof, and the rubber composition comprises 70-90 parts of natural rubber, 20-40 parts of epoxidized natural rubber, 5-7 parts of a tackifying system, 50-65 parts of carbon black, 2-5 parts of an anti-aging agent, and 4-6 parts of a sulfur system. The tackifying system is prepared through a reaction of benzimidazole, a thiuram compound and omega-brominated fatty acid benzyl ester, and the omega-brominated fatty acid benzyl ester is prepared through a nucleophilic substitution reaction of omega-brominated fatty acid and benzyl bromide. Benzimidazole and a thiuram compound are bridged through a flexible aliphatic chain to form a tackifying system molecule, and the molecule can be chelated with copper / zinc / iron and other metal ions on the surface of a steel wire through a benzimidazole part, so that the initial bonding strength between rubber and the steel wire is improved; the thiuram part improves the interface stress distribution of the steel wire belt layer rubber and the steel wire, and the bonding performance of the steel wire cord fabric layer is improved.

This invention belongs to the field of tea processing technology. It provides a novel comprehensive processing technique for improving the quality of summer and autumn black tea, comprising the steps of gentle shaking combined with UV-B-LED combined spectral withering, low-temperature controlled pressure gradient kneading, three-parameter linked dynamic fermentation, microwave-hot air coupled drying, and far-infrared variable-temperature aroma enhancement. Gentle shaking combined with UV-B-LED combined spectroscopy promotes the polymerization and transformation of flavor components; low-temperature controlled pressure gradient kneading allows for controllable cell breakage of tea leaves, promoting the outflow of tea juice; three-parameter linked dynamic fermentation increases the content of theaflavins and aromatic substances, improving the uniformity of fermentation; microwave-hot air coupled drying reduces aroma loss and improves drying efficiency; far-infrared variable-temperature aroma enhancement enriches the aroma of the tea, improves tea quality, and enhances the harmony and lasting sweetness of the tea soup. The resulting black tea has a complex aroma of flowers and honey, a bright red liquor, a mellow and refreshing taste, and a comprehensive sensory score as high as 95.6.