Abstract: An insulating composition comprises: about 70-100 parts by volume of a polymeric material, about 5-30 parts by volume of a ceramic filler (2) which is surface-treated by a bifunctional coupling agent in an amount of about 0.1 wt % to about 4 wt % of the ceramic filler; about 0.1-5 parts by volume of a crosslinking agent; about 0-6 parts by volume of conductive powder (3); and about 0-6 parts by volume of ZnO whisker (4). A preparation method for making the insulating composition, an insulating article such as an electrical cable accessory, and a use thereof are provided.

Abstract: An insulating composition comprises: about 70-100 parts by volume of a polymeric material, about 5-30 parts by volume of a ceramic filler (2) which is surface-treated by a bifunctional coupling agent in an amount of about 0.1 wt % to about 4 wt % of the ceramic filler; about 0.1-5 parts by volume of a crosslinking agent; about 0-6 parts by volume of conductive powder (3); and about 0-6 parts by volume of ZnO whisker (4). A preparation method for making the insulating composition, an insulating article such as an electrical cable accessory, and a use thereof are provided.

Abstract: This utility model relates to a type of addition agent releasing device used for dental water jet, which is equipped with at least one holding space for releasing addition agents. For example, if the addition agent is toothpaste, each holding space should be equipped with at least one inlet channel entering into the holding space with certain angle, one outlet channel, and without or with at least one water bypass that makes some of the water will not flow into the holding space. The above-mentioned technical solution results in the following technical benefits: 1. The water can spurt into the holding space with addition agent in it at oblique direction and release addition agent evenly; 2. The adjusting device for water flow can adjust flow of the water which flows into the holding space; therefore, it can adjust the time of releasing addition agent; 3. Using addition agent is simple and easy; 4. Small in size, easy to be constructed individually or compounded with other functional parts.