Corrugated metal pipe (CMP) grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material and preparation method thereof

A technology of polyvinyl chloride and sheathing material, which is applied to cables, insulated cables, conductors and other directions, can solve problems such as the reduction of physical properties, and achieve the effects of simple preparation method, good physical properties and use performance, and short process flow

Active Publication Date: 2013-03-27
江西一舟数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cable material uses an anti-pre-crosslinking agent to suppress or prevent the occurrence of early crosslinking reaction of polyvinyl chloride, and improve the degradation of cross-linked polyvinyl chloride during processing and the problem of rough surface of the product, but the smoke suppressant of the cable mate...

Method used

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  • Corrugated metal pipe (CMP) grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material and preparation method thereof
  • Corrugated metal pipe (CMP) grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material and preparation method thereof
  • Corrugated metal pipe (CMP) grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Prepare CMP-grade flame-retardant and smoke-suppressing PVC cable sheath material A1 as follows:

[0049] The toughening modifier was weighed according to the parts by weight in Example 1 in Table 1, and heated to 160° C. while stirring to make it in a molten state.

[0050] Then take polyvinyl chloride, common plasticizer, flame retardant plasticizer, flame retardant, smoke suppressant, stabilizer and auxiliary agent according to the weight part in embodiment 1 in table 1, pour the raw material that weighs into Put it into the high mixer for mixing, mix evenly and then add it to the internal mixer for banburying. After the material is plasticized into a ball, pour it into the feeder while it is hot, and then evenly add it into the single-screw extruder from the feeder.

[0051] An injection device is added above the metering section of the single-screw extruder, and the toughening modifier in the molten state is injected into the single-screw extruder quantitatively by...

Embodiment 2-4

[0055] According to the method of Example 1 and the raw material components and parts by weight of Examples 2-4 in Table 1, CMP grade flame-retardant and smoke-suppressing PVC cable sheathing materials A2-A4 were prepared.

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Abstract

The invention provides a corrugated metal pipe (CMP) grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material and a preparation method thereof and belongs to the technical field of material. The invention solves the problem that in the prior art, the flame-retardant and smoke-suppressing effects and the mechanical property and the physical property of the cable sheath material are all good. The raw materials thereof comprise the following components in parts by weight: 100 parts of polyvinyl chloride, 5-15 parts of common plasticizer, 20-50 parts of flame-retardant plasticizer, 40-100 parts of fire retardant, 20-50 parts of smoke-suppressing agent, 5-10 parts of stabilizer, 40-80 parts of toughening modification agent and 1-5 parts of promoter; wherein the smoke-suppressing agent comprises ammonium octamolybdate, zinc molybdate and zinc borate which are compounded according to the proportion of 1:1 to 3:1 to 3 and coated by aluminium hydroxide the grain size of which is 1-5mu m according to the proportion of 1:1 to 3. The CMP grade flame-retardant smoke-suppressing polyvinyl chloride cable sheath material has the advantages of good flame-retardant and smoke-suppressing effect, mechanical property and physical property.

Description

technical field [0001] The invention relates to a cable sheathing material, in particular to a CMP grade flame-retardant and smoke-suppressing polyvinyl chloride cable sheathing material and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] With the rapid development of science and technology, the coverage of network communication is getting wider and wider. All kinds of high-rise buildings and intelligent buildings basically adopt the method of integrated wiring, and a large number of communication cables are laid between floors. Therefore, each country also has a strict evaluation standard for the fire protection level of these communication cables. UL divides the fire protection cable standards into CMP, CMR, CM, CMG and CMX. [0003] CMP grade cables are the cables with the highest requirements in the UL fire protection standard, and the applicable safety standard is UL910. The experiment stipulates that multi...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L75/04C08L23/08C08K13/06C08K9/10C08K3/28C08K3/24C08K3/38C08K5/12C08K5/523C08K3/22H01B7/295
Inventor 胡建友张煜杰余玲刘华张文阳
Owner 江西一舟数据技术有限公司
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