Coating-enhanced low-density carbonization-free solid-state electrolytic capacitor paper and preparation method thereof

The invention belongs to the field of electrolytic capacitor papers, in particular to a coating-enhanced low-density carbonization-free solid-state electrolytic capacitor paper and a preparation method thereof. The raw materials of the electrolytic capacitor paper comprise hemp pulp and chemical fibers; a beating degree of the hemp pulp is 10-30 degree SR, and a wet weight is 10-40 g; the length of the chemical fibers is 1.5-15 mm, and the fineness of the chemical fibers is 0.1-3 dtex; according to a dry weight percentage, the hemp pulp is 10-80% and the chemical fibers are 20-90%; and the surface of the electrolytic capacitor paper is coated with an enhancement layer through spraying or dipping, and the coating amount after coating is 1-10% of an absolute dry weight of the paper. The paper is coated, so that the paper strength can be further enhanced, and a smooth production of capacitors can be ensured. 本发明属于电解电容器纸领域，具体涉及种涂层增强型低紧度免碳化固态电解电容器纸及其制备方法。种涂层增强型低紧度免碳化固态电解电容器纸，该电解电容器纸的原料由麻浆和化学纤维组成；麻浆的打浆度为10~30°SR，湿重