Environmentally friendly polyvinyl chloride anti rodent and anti termite protective layer material is a granular cable material made by mixing, plasticizing, and granulating polyvinyl chloride resin as the base material, adding special plasticizers, stabilizers, antioxidants, and other additives.
Model, brand and various names, execution standards, purposes and specifications

Model	Maximum operating temperature of wire core (℃)	Name	Execution standards	Usage and Cable Material Specification
FYSH-70	70	70 ℃ PVC anti rodent and anti termite protective layer material	GB/T8815-2008	Used for 70 ℃ PVC anti rodent and anti termite wire and cable protective layer material
FYSH-90	90	90 ℃ PVC anti rodent and anti termite protective layer material	GB/T8815-2008	Used for 90 ℃ PVC anti rodent and anti termite wire and cable protective layer material

Note: The relative density index and color are determined through negotiation between the supply and demand parties.

Mechanical and electrical properties

Experimental project	Company	Standard value
Experimental project	Company	FYSH-70	FYSH-90
Tensile strength	≥ MPa	15.0	16.0
Fracture tensile strain	≥ %	180	180
Brittle temperature	≤ ℃	-25	-20
Volume resistivity at 20 ℃	≥ Ω•m	1.0 × 10⁸	1.0×10⁹
Dielectric strength	≥ MV/m	18	18
200 ℃ thermal stability time	≥ min	50	80
Thermal aging performance
Thermal aging temperature	℃	80±2	100±2
Thermal aging time	h	168	240
Tensile strength after aging Maximum rate of change in tensile strength	≥ MPa	15.0	16.0
	≤ %	±20	±20
Fracture tensile strain after aging Maximum change rate of fracture tensile strain	≥ %	180	180
	≤ %	±20	±20
Mass loss	≤ g/m²	23	15
Rat proof performance	/	SD rats without biting for 7 days	SD rats without biting for 7 days
Anti termite performance (test group method)	/	Second level pass	Second level pass

Processing technology
Using a general extruder for processing, with L/D ≥ 20, it is recommended to set the temperature at each point of the extruder as follows:

District Point	Zone 1	Zone 2	Zone 3	Zone 4	Zone 5	Die head
Temperature ℃	140	160	170	175	180	175

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