Processing method of fire-resistant water-blocking tape for optical cable
A technology of fire-resistant water-blocking tape and processing method, which is applied in the directions of light guides, optics, optical components, etc., can solve the problems of no waterproof function and no fire-proof function, etc., and achieve excellent fire resistance, firm adhesion and good durability.
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Embodiment 1
[0026] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;
[0027] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;
[0028] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;
[0029] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...
Embodiment 2
[0033] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;
[0034] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;
[0035] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;
[0036] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...
Embodiment 3
[0042] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;
[0043] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;
[0044] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;
[0045] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...
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