Polypropylene film for high-temperature-resistant capacitor and preparation method of polypropylene film
A technology of polypropylene film and polypropylene base film, which is applied in the direction of capacitors, laminated capacitors, fixed capacitor dielectrics, etc., can solve the problems of poor fastness, poor heat resistance, and poor electrical properties of metallized coatings, and achieve remarkable durability Effects of high temperature characteristics, improvement of electrical performance, and cost reduction
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Embodiment 1
[0036] In a preferred embodiment, this embodiment provides a polypropylene film for high temperature resistant capacitors, comprising a polypropylene base film layer, one side of the polypropylene base film layer is connected with a high temperature resistant layer, and the other side is coated with a weather resistant layer, And the high temperature-resistant layer is a honeycomb structure formed after the waste metallized polypropylene film is recycled and processed, and the weather-resistant layer includes zinc coating and aluminum coating, and the voids of the honeycomb structure are filled with dielectric materials.
[0037] The preparation process of the high-temperature-resistant layer is as follows: reclaim the discarded metallized polypropylene film and soak it in a sulfuric acid washing solution with a concentration of 10-15% for 10-15 minutes; Soak in the acid washing solution of -6.2 for 30-60min, the acid washing solution described here is sulfuric acid with a mass...
Embodiment 2
[0046] This embodiment should be understood as including all the features of the foregoing embodiments, and further optimized on the basis thereof. Therefore, this embodiment provides a polypropylene film for high-temperature-resistant capacitors and a preparation method thereof. The polypropylene film includes A polypropylene base film layer, one side of the polypropylene base film layer is connected with a high-temperature resistant layer, and the other side is coated with a weather-resistant layer, and the weather-resistant layer includes a zinc coating and an aluminum coating.
[0047] The preparation method of described polypropylene film, concrete steps are as follows:
[0048] S1. The preparation process of the high-temperature-resistant layer is as follows: recycle the discarded metallized polypropylene film and soak it in a sulfuric acid washing solution with a concentration of 10% for 10 minutes; after the first water washing, continue to put it into an acid washing s...
Embodiment 3
[0056] This embodiment should be understood as at least including all the features of any one of the preceding embodiments, and further optimized on the basis of it. Therefore, this embodiment provides a polypropylene film for high temperature resistant capacitors and its preparation method. The propylene film includes a polypropylene base film layer, one side of the polypropylene base film layer is connected with a high-temperature resistant layer, and the other side is coated with a weather-resistant layer, and the weather-resistant layer includes a zinc coating and an aluminum coating.
[0057] The preparation method of described polypropylene film, concrete steps are as follows:
[0058] The preparation process of the S1 high temperature resistant layer is as follows: recycle the discarded metallized polypropylene film and soak it in a sulfuric acid washing solution with a concentration of 15% for 15 minutes; after the first water washing, continue to put it in an acid wash...
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Abstract
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