70°C PVC Weather-resisting Insulation material|PVC fire-resisting material|Filled mastre batch of Non-woven fabric--Jiande Qintang Precise Calcium Co., Ltd.

Jiande Qingtang Precise Calcium Co.,Ltd.

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1. Filled mastre batch of Non-woven fabrics
2. 70℃ CPVC insulation material, sheathing material, antifreeze insulation material, high voltage insulation material
3. Microfine activated calcium
4. Digital cable--purposed filling material
5. PVC-purposed calcium
6. Rubber belt track
7. Rubber thread and mesh belt

PVC Insulation material for aerial cable (70°C PVC Weather-resisting Insulation material)

It is made of PVC resin, with plasticizers, stabilizers, colorants and special additives. It is a granular material.
Standard:Enterprise Standard Q/GHJP05-2004 GB12527-90
Features and uses:Good mechanical and physical Performance, good Electrical Performance and extrusion processing Performance. Suitable for 1KV or less of aerial cable.
Performance: Please see form one.
Extrusion process:1, suitable for common PVC extruder, length-to-diameter factor of screw L / D ≥ 20; taking φ60 machine as example: 3 layers of filter net, 80 mesh/120 mesh/ 80 mesh, melt temperature < 180 ° C.
Processing temperature:

Zone one	Zone two	Zone three	Zone four	Bolt head and mould
140±10	160±10	170±5	175±5	175±10

Packaging, transportation and storage:
Packing: 25 kg per bag, polyethylene film bag lined kraft composite bag .
Transportation and storage: Kept in clean, cool, dry and ventilating place, avoid insolation and rain.

Form one

Product name	Unit	S
Product name	Unit	Index name	Typical value
Density	g/cm³	-	1.38-1.42
Tensile strength	Mpa	≥15.0	23.1
Elongation at break	%	≥180	320
Thermal aging in air box (100°C×168 h)
Tensile strength after ageing	Mpa	≥15.0	25.4
Rate of change of Tensile strength	%	MAX ±20	+10
Elongation at break after ageing	%	≥150	300
Rate of change of Elongation at break	%	MAX ±20	-6
Mass loss	g/cm³	≤20	15.1
Hot deformation	%	≤50	24
Thermal stability time under 200 ° C	min	≥60	100
Brittleness temperature on Low-temperature impact	°C	-25°C	Passed
Volume resistivity of 20 ° C	W·m	≥3.0×1011	2.0×1012
Volume resistivity of 70 ° C	W·m	≥3.0×108	3.0×109
Dielectric strength	Mpa	≥20	28
Ageing in Artificial weather
Ageing time 0~1008h
Rate of change of Tensile strength	%	MAX ±25	-14
Rate of change of Elongation at break	%	MAX ±25	-17
Ageing time 504~1008h
Rate of change of Tensile strength	%	MAX ±15	-9
Rate of change of Elongation at break	%	MAX ±15	-11