3results about How to "High initial bond strength" patented technology

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.

The invention relates to a coal mine bio-based steel wire rope core flame-retardant conveyor belt and a manufacturing method thereof, and belongs to the technical field of conveyor belts, a core matrix adopts a blending system of bio-based polyamide elastomer and bio-based chlorosulfonated polyethylene, is derived from renewable resources, significantly reduces the carbon footprint of a product, and adopts a halogen-free flame-retardant system, so that the production cost is reduced. The environment and health risks of a halogen flame retardant are avoided, the high hydrogen bond density of the bio-based polyamide elastomer and the high polarity of the bio-based chlorosulfonated polyethylene form a synergy, and a special bonding formula of the m-methylene white system and the cobalt salt bonding accelerant is matched, so that the initial bonding strength and the bonding strength after thermal aging of the steel wire rope are enhanced, and the service life of the steel wire rope is prolonged. The problems that a steel wire rope is easily pulled out and layered in the later period of a traditional conveying belt are solved, the mechanical properties such as tensile strength and elongation at break of the covering rubber layer are superior to those of standard requirements, and heavy load impact and repeated flexing under the working conditions of long distance, large transportation volume and high speed of a coal mine can be borne.

This invention relates to the field of interlayer technology in laminated glass, and particularly to a binary composite plasticized gradient structure PVB interlayer, its preparation method, and laminated glass. The interlayer has a three-layer gradient structure, consisting of a first surface layer, a middle sound-insulating layer, and a second surface layer from the outside in. Both the first and second surface layers contain a first PVB resin and a first composite plasticizer, which includes diethylene glycol dibenzoate and 3GO. The middle sound-insulating layer contains a second PVB resin and a second composite plasticizer, which includes a mixture of diethylene glycol dibenzoate and 3GH. This invention, through innovative material formulation and structural design, provides a PVB interlayer solution that balances high weather resistance, excellent sound insulation, strong adhesion, low plasticizer migration tendency, and additional heat insulation functions. It also includes a stable and efficient preparation method, effectively overcoming the limitations of existing technologies where performance cannot be synergistically improved.