6results about How to "Moderate elasticity" patented technology

The invention belongs to the technical field of electric power engineering, and particularly relates to a composite layer material for a cable intermediate joint and a preparation method of the composite layer material. The composite layer material for the cable intermediate joint is composed of an inner semi-conductive layer, an insulating layer and an outer semi-conductive layer, the silicone rubber is prepared from the following raw materials: methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, trifluoropropyl methyl vinyl silicone rubber, a vulcanizing agent, an assistant crosslinker, an accelerant, diphenyl silanediol, an anti-aging agent, trifluoropropyl cage type silsesquioxane, and a mixture of modified nano hydroxyapatite and nano hectorite. According to the composite layer material for the cable intermediate joint, the three layers adopt the consistent siloxane main chain structure and vulcanization system, interlayer chemical compatibility is ensured, synchronous co-crosslinking is achieved, and by adjusting the silicone rubber composition and proportion of all the layers, the composite layer material can be applied to the cable intermediate joint. And it is ensured that the prepared composite layer material for the cable intermediate joint has excellent mechanical and hydrophobic water-blocking performance.

The utility model relates to a grip playground ball, including inner bag, the elastic layer of cladding in the outer layer of inner bag, the outer surface of elastic layer has a plurality of gripping pits array, gripping pit is integrally formed and sets up on the elastic layer, the utility model adopts the structure that soft inner bag outer layer directly clads rubber surface layer, has discarded inside winding inner core, makes the ball body softer, the harm is smaller to children, the rough surface layer and gripping pit of surface still have increased the friction of ball body and outside, the ball body outside is equipped with a plurality of gripping pits, and the ball body is convenient for children to grip, adapts the hand action of children. The utility model discloses a grip playground ball for children friendly product, is suitable for children single person playing or many people playing scene, not only can be used for single person ground beat playing, still can be used for many people throwing and pursuing playing, and the injury probability is small when children throw ball, receive ball, grip reliable, has high interesting nature.

The application belongs to the technical field of electric power engineering, and particularly relates to a composite layer material for cable intermediate joint and a preparation method thereof. The composite layer material for cable intermediate joint is composed of an inner semi-conductive layer, an insulating layer and an outer semi-conductive layer. The insulating layer is composed of the following raw materials: methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, trifluoro propyl methyl vinyl silicone rubber, vulcanizing agent, auxiliary cross-linking agent, accelerator, diphenyl silicone diol, anti-aging agent, trifluoro propyl cage type silsesquioxane, and a mixture of modified nano-hydroxyapatite and nano-laponite. The composite layer material for cable intermediate joint has a consistent siloxane main chain structure and vulcanization system in three layers, which ensures the chemical compatibility between layers and realizes synchronous co-crosslinking. By adjusting the composition and ratio of silicone rubber in each layer, the prepared composite layer material for cable intermediate joint has excellent mechanical and hydrophobic water-blocking properties.

The present invention relates to a composite fiber wherein: two or more kinds of polymers, which are different from each other in the dissolution rate in a solvent, are stacked from the center of the fiber in the direction toward the fiber surface in a cross-section of the fiber; the innermost layer comprising the center of the fiber contains an easily soluble polymer; and two or more kinds of poorly soluble polymers, which have different melting points, are unevenly distributed in at least one layer other than the innermost layer. The present invention also relates to a multifilament which contains a flat hollow fiber, wherein the coefficient of variation CV of the rotation angle of the major axis of the flat hollow fiber is from 15% to 50%.

The utility model belongs to underwater cable technical field discloses a kind of bending-resistant underwater cables, including conductor, insulating layer, sheath layer and protective layer, conductor is formed by multiple copper wire strands multilayer complex twisting, and the complex twisting direction of each layer copper wire strand is same, copper wire strand is formed by multiple tinned copper wire bundle twisting, insulating layer is coated in the outer periphery of conductor, sheath layer is coated in the outer periphery of insulating layer, protective layer is coated in the outer periphery of sheath layer, the material of protective layer is polyether polyurethane elastomer, shore hardness is (A80-D70).The bending-resistant underwater cable provided by the utility model has pressure resistance and flexibility simultaneously, when bending laying, it can be quickly laid, reduce the degree of difficulty of laying, simultaneously, it can effectively reduce the degree of stress concentration at bending, the risk of fracture at bending is low, and it can stably transmit electric energy.

This utility model discloses a pressurizing device for gel membrane production, belonging to the field of gel membrane production technology. The device includes an air compressor, the output end of which is connected to a buffer device. The buffer device includes an outer cylinder, inside which is an airbag assembly. The airbag assembly consists of multiple interconnected airbags with progressively increasing internal pressure. An airflow channel is provided inside the outer cylinder to facilitate gas flow. One end of the airflow channel is connected to the air compressor output, and the other end is connected to a delivery pipe for connection to an external device. This utility model features an airbag assembly with a stepped pressure compensation mechanism. This layered buffer structure decomposes a single large pressure change into multiple small adjustments, effectively reducing the deformation of individual airbags and minimizing fatigue damage, thereby significantly extending the service life of the entire pressurizing system and ensuring production stability.