| abstract |
The invention discloses a PMA-EVAL high-strength cable sealing sheath and a preparation method thereof. The preparation method comprises: 1) mixing water glass and sulfuric acid solution to form hydrogel; 2) immersing bentonite in hydrochloric acid solution for activation process, then filter to get the filter cake to make modifier; 3) PMA (polymethyl acrylate), EVAL (ethylene-vinyl alcohol copolymer), the complex shown in formula (I), limestone, ortho-benzene Butylenedicarboxylate, hydrazine, sinigrin, diborane, glycerol, triallyl cyanurate, 2-mercaptobenzothiazole, hydrogel and modifier mixing, cooling molding To make PMA-EVAL high-strength cable sealing sheath. The cable sealing sheath prepared by the method has excellent mechanical properties, corrosion resistance and pressure resistance properties. |