High-elasticity small-particle hollow sphere and preparation process thereof

Abstract

The invention relates to the field of materials for manufacturing impact-relieving and high-elasticity molded products, in particular to a high-elasticity small-particle hollow sphere and a preparation process thereof. The diameter of the high-elasticity small-particle hollow sphere requested to be protected is 3mm to 10 mm, the hollow sphere is made of TPU or PVC, the hollow sphere provided by the invention has high elasticity, and a product filled with the hollow sphere can keep relatively lasting elasticity and damping sense; according to the high-elasticity small-particle hollow sphere and the preparation process thereof provided by the invention, oppositely arranged bubble embossing rollers are used for the first time, and after two films are respectively adsorbed to form hemispheres based on a vacuum plastic uptake mode, the bubble embossing rollers are meshed with each other to rotate, so that the hemispheres on the two films are combined to form the hollow sphere; and according to the process, hollow spheres with different particle sizes can be prepared by adjusting the diameters of the hemispherical grooves in the bubble embossing rollers, the process is not limited by materials, and high-elasticity and non-foaming materials can be prepared into the high-elasticity hollow sphere through the process.

Description

technical field [0001] The invention relates to the field of materials for manufacturing shock-absorbing and highly elastic molding products, in particular to a high-elastic small-particle hollow sphere and a preparation process thereof. Background technique [0002] The existing materials for manufacturing cushioning impact and high elastic molding products are generally elastomer materials, and elastomer materials usually involve two types of non-foaming and foaming to meet the needs of different occasions, such as sports, medical, toys, transportation and other occasions The required buffer object. [0003] Most of the existing foamed elastomer materials are foamed sheets, which are usually used for cushioning packaging of products, but cannot be directly applied to the product itself; there are also some non-foamed elastomers that are hollow spherical, and this type of hollow elastic The diameter of the body is usually large, such as inflatable water walking balls in pl...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing foamed elastomer materials are foamed sheets, which are usually used for cushioning packaging of products, but cannot be directly applied to the product itself; there are also some non-foamed elastomers that are hollow spherical, and this type of hollow elastic The diameter of the body is usually large, such as inflatable water walking balls in playgrounds, ocean balls, balls for children's toys, etc. These spheres are usually blow molded, and the particle size of spherical elastomers made by blow molding is usually It is difficult to achieve 10mm or less, so the existing non-foamed elastomers are applicable to limited occasions, and it is difficult to apply to the occasions where they are filled and used, such as cushions for sports shoe soles, etc.; and made by blow molding The internal air of the spherical elastomer is easy to leak through the injection port, which greatly reduces the cushioning performance of the spherical elastomer

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