Composite material, molded body, electronic device with molded body, and method for fabricating a molded body

摘要

A composite material comprises a polymer matrix; and zeolite, which is bonded in the polymer matrix; wherein the percent of volume of the zeolite in the volume of the composite material amounts to at least 50%, in particular at least 65%. The polymer matrix can in particular comprise a polymer, which is selected from a group of polymers that consist of fluoroplastics, polyaryletherketones, sulphur-containing polymers and high heat resistant polymers. The zeolite comprises in particular a zeolite of type A, in particular a zeolite 4A or 3A.

主权项

1. An electronic gauge pressure measurement transducer, which comprises:
at least one housing; at least one inner space, which contains an electronic circuit; a gauge pressure sensor for measuring the difference between a pressure of a medium and an ambient atmospheric pressure near said gauge pressure sensor; and an atmospheric pressure line in order to expose said gauge pressure sensor to the atmospheric pressure; and at least one molded body comprising a composite material comprising: a polymer matrix; and zeolite, which is bonded in said polymer matrix, wherein: the portion of volume of said zeolite in the volume of the composite material amounts to at least 65%; said molded body is arranged in said inner space; the volume of said molded body amounts to not less than 40% of the free volume of said inner space; water vapor can enter into said at least one housing via said atmospheric pressure line; said atmospheric pressure line runs through the molded body; and said molded body is capable of adsorbing moisture ingressing via said atmospheric pressure line and thereby prevent water from condensing onto said electronic circuit over a time period of years.