High-flame-retardant photoelectric composite cable sheath material with good processability and preparation method thereof

A technology for optoelectronic composite cables and sheathing materials, which is applied in the field of cable sheathing materials, can solve the problems of reduced processing performance and mechanical properties of composite materials, endangering life and property safety, poor processing flow performance and thermal stability of PVC resins, etc. Good processability and heat resistance, broad market application prospects, excellent low smoke characteristics

Active Publication Date: 2022-04-29
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional PVC photoelectric composite cable sheathing material has the following disadvantages: First, it is very easy to catch fire due to excessive heat generation of the line during use, which causes a fire, and produces a large amount of toxic gas and smoke when burning. Seriously endanger people's lives and property safety; second, the processing fluidity and thermal stability of PVC resin itself are poor, so it is necessary to add plasticizers and stabilizers to ensure processing performance, and the most commonly used phthalates in plasticizers Heavy metal elements such as lead and cadmium in dicarboxylates and stabilizers are not environmentally friendly, so the use of halogen-free flame-retardant cable materials to replace traditional halogen-co

Method used

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  • High-flame-retardant photoelectric composite cable sheath material with good processability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of modified glass fibers:

[0028] Heat-treat the glass fibers at 300°C for 2 hours, cool to room temperature, add deionized water, ultrasonicate for 20 minutes, then filter with suction and dry to obtain treated glass fibers, wherein the mass ratio of glass fibers to deionized water is 1: 10. Immerse the treated glass fiber in the aqueous solution of polydimethyldiallylammonium chloride at room temperature, stir at 300r / min for 30min, then suction filter, wash and dry to obtain wrapped glass fiber, wherein the treated glass fiber The solid solution ratio of the fiber and the aqueous solution of polydimethyldiallyl ammonium chloride is 5g:4L, the polydimethyldiallyl ammonium chloride in the aqueous solution of polydimethyldiallyl ammonium chloride The concentration is 2g / L; disperse the wrapped glass fiber in the ethanol solution of nano-silica, ultrasonically disperse it for 20 minutes, let it stand for 20 minutes, filter it with suction, wash it with water...

Embodiment 2

[0030] Preparation of modified glass fibers:

[0031] Heat-treat the glass fibers at 300°C for 2 hours, cool to room temperature, add deionized water, ultrasonicate for 30 minutes, then filter with suction and dry to obtain treated glass fibers, wherein the mass ratio of glass fibers to deionized water is 1: 10. Immerse the treated glass fiber in the aqueous solution of polydimethyldiallylammonium chloride at room temperature, stir at 500r / min for 20min, then suction filter, wash, and dry to obtain wrapped glass fiber, wherein the treated glass fiber The solid solution ratio of the fiber and the aqueous solution of polydimethyldiallyl ammonium chloride is 5g:5L, the polydimethyldiallyl ammonium chloride in the aqueous solution of polydimethyldiallylammonium chloride The concentration is 2g / L; disperse the wrapped glass fiber in the ethanol solution of nano-silica, ultrasonically disperse it for 30 minutes, let it stand for 30 minutes, filter it with suction, wash it with water...

Embodiment 3

[0033] Reactive silicon flame retardants are made through the following steps:

[0034]Add 19g of pentaerythritol methylsilicate and 9.5g of epichlorohydrin into a three-necked flask, then add 15g of anhydrous potassium carbonate and 100mL of toluene, stir, heat to 75°C, ring-opening reaction for 4 hours, add 4g of NaOH solid, and ring-closing reaction for 4 hours , after the reaction is finished, filter with suction, and the filtrate is rotary evaporated to obtain a reactive silicon flame retardant.

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Abstract

The invention relates to a high-flame-retardant photoelectric composite cable sheath material with good processability and a preparation method thereof, and belongs to the technical field of cable sheath materials. The high-flame-retardant photoelectric composite cable sheath material comprises the following raw materials: a resin base material, a compatilizer, a composite flame retardant, a synergistic flame retardant, an antioxidant, modified glass fibers and a lubricant. The resin base material, the compatilizer, the composite flame retardant, the synergistic flame retardant, the antioxidant, the modified glass fiber and the lubricant are uniformly mixed and then extruded and granulated to prepare the flame-retardant resin. According to the invention, the composite flame retardant and the modified glass fiber are introduced and are scientifically proportioned with other raw materials, so that the high-flame-retardant photoelectric composite cable sheath material with good processability is obtained; the halogen-free flame-retardant low-smoke halogen-free flame-retardant halogen-free halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant

Description

technical field [0001] The invention belongs to the technical field of cable sheath materials, and in particular relates to a high flame-retardant photoelectric composite cable sheath material with good processability and a preparation method thereof. Background technique [0002] The traditional PVC photoelectric composite cable sheathing material has the following disadvantages: First, it is very easy to catch fire due to excessive heat generation of the line during use, which causes a fire, and produces a large amount of toxic gas and smoke when burning. Seriously endanger people's lives and property safety; second, the processing fluidity and thermal stability of PVC resin itself are poor, so it is necessary to add plasticizers and stabilizers to ensure processing performance, and the most commonly used phthalates in plasticizers Heavy metal elements such as lead and cadmium in dicarboxylates and stabilizers are not environmentally friendly, so the use of halogen-free fl...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L51/06C08L23/12C08L23/06C08K9/10C08K7/14C08K9/06C08K3/32
CPCC08L23/0853C08L23/06C08L23/0815C08L23/12C08L2201/02C08L2201/22C08L2203/202C08L2201/08C08K2003/323C08L51/06C08K9/10C08K7/14C08K9/06C08K3/32
Inventor 李同兵刘悦钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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