Nano-zeolite granule and making method thereof

Abstract

The invention discloses a nano-zeolite granule comprising nano-zeolite particles and auxiliary agent. The proportion of the nano-zeolite particles in the nano-zeolite granule is greater than 75wt%. The particle size of the nano-zeolite particles is 30-500nm. The invention further provides a making method of the nano-zeolite granule. Compared with the related technology, the nano-zeolite granule made by the making method of the invention has an obvious low frequency reduction effect and strong anti-aging ability. A speaker box using the nano-zeolite granule has better low-frequency performance and a longer service life.

Description

technical field [0001] The invention relates to the field of acoustics, in particular to a nanometer zeolite particle and a preparation method thereof. Background technique [0002] With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among the many mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are extremely diverse, one of which is the function of high-quality music. Therefore, speaker boxes for playing sound are widely used in current smart mobile devices. [0003] The speaker box in the related art includes a lower cover, an upper cover that is combined with the lower cover to form a storage space, and a sound unit housed in the storage space, the sound unit and the upper cover form a front cavity, the sounding unit and the lower cover form a rear cavity, and the upper cover and the lower cover also form an auxiliary sounding cav...

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Problems solved by technology

If the zeolite particles are too large, the sound resistance will increase, and if the particles are too small,

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