Mastic sealant and technical method thereof

Abstract

The invention discloses a mastic sealant and a technical method thereof. The mastic sealant is made of, by weight, 100 parts of polysiloxane, 26-40 parts of first fillers, 35-62 parts of second fillers, 96-138 parts of third fillers, 0.85-1.2 parts of fourth fillers, 2.8-6.5 parts of first auxiliaries and 0.45-1.3 parts of second auxiliaries, wherein the first fillers refer to carbon black reinforcing agents, the second fillers refer to oxide filling reinforcing agents, the third fillers refer to hydroxide flame retardant, the fourth fillers refer to stearate internal releasing agents, the first auxiliaries are liquid auxiliaries, and the second auxiliaries are solid auxiliaries. The mastic sealant has the advantages of avoidance of vulcanization, high sealing waterproofness, flexibility, plasticity and thermal conductivity and excellent weather resistance and flame retardation performance, is applicable to waterproof sealing of power cable joints and feeder joints of communication base stations and can be fittingly used with thermal contraction sleeves or ethylene-propylene adhesive tapes to guarantee long-term stability and safety in signal transmission and power supply.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a sealing cement and a process method thereof. Background technique [0002] In the prior art, a single cold-shrinkable tube or ethylene-propylene tape is used to protect the cable joints used in communication and power for waterproof sealing. Among them, the communication base station is a DIN head to 1 / 2 feeder line or an N head to 1 / 2 feeder line joint. , Power cables are mostly joints with heterosexual structures, and the joint surface is irregular and there are gaps. Therefore, the protective technology of using a single cold shrink tube or ethylene-propylene tape has the defects of poor sealing effect and easy water seepage, because the cold shrink tube is elastic. The surface of the body or ethylene-propylene tape is too hard to fit tightly with the cable joints with gaps, and cannot form effective protection. It can only isolate the external environment and cannot isolat...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, a single cold-shrinkable tube or ethylene-propylene tape is used to protect the cable joints used in communication and power for waterproof sealing. Among them, the communication base station is a DIN head to 1 / 2 feeder line or an N head to 1 / 2 feeder line joint. , Power cables are mostly joints with heterosexual structures, and the joint surface is irregular and there are gaps. Therefore, the protective technology of using a single cold shrink tube or ethylene-propylene tape has the defects of poor sealing effect and easy water seepage, because the cold shrink tube is elastic. The surface of the body or ethylene-propylene tape is too hard to fit tightly with the cable joints with gaps, and cannot form effective protection. It can only isolate the external environment and cannot isolate the air. Especially in rainy and snowy weather, it will directly affect the quality of communication signals or Safety and reliability of power transmission

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