Intelligent water meter
An intelligent water meter and water inlet technology, applied in measuring devices, instruments, liquid/fluid solids measurement, etc., can solve the problems of troublesome installation, reduced installation efficiency of water pipes, complicated installation process of water pipes, etc., to improve sealing and simple installation of water pipes. Convenience and the effect of reducing installation steps
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Embodiment 1
[0036] The protective shell includes the following raw materials in parts by weight:
[0037] 28 parts of denatured polyphenylene ether, 14 parts of ASA resin, 7 parts of SMA resin, 15 parts of highly dispersed nano calcium carbonate, 2 parts of antimony trioxide, 2 parts of polybutadiene rubber, 0.2 part of calcium stearate;
[0038] The preparation process of the highly dispersed nano-calcium carbonate is as follows: the calcium carbonate with a particle size of 100nm to 200nm is dissolved in an ethanol solution, then a composite dispersant is added, and the highly-dispersed nano-calcium carbonate is obtained through ultrasonic stirring and drying; The composite dispersant is composed of 1-ethyl-3-methylimidazole acetate and dispersant A according to a mass ratio of 1:1; the dispersant A has the following structural formula:
[0039]
[0040] The preparation method of the protective shell is as follows:
[0041] S1 pretreatment: put ASA resin and SMA resin in an oven at ...
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