Jiangsu Dongfang Cable Material Co., Ltd.

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Australian Standard Polyethylene Sheathing Compound

Category:

Polyethylene Sheath

Description

Foreword

Australian standard polyethylene sheathing material is a granular plastic made of polyethylene resin as the main raw material, adding an appropriate amount of antioxidants, lubricants and other processing aids, through mixing, extrusion and granulation.

Product name, model and purpose

The Australian standard polyethylene sheathing material produced by our company meets the requirements of relevant Australian standards. The product name, model and main use are as follows:

Name	Model	Primary use
Australian Standard Linear Low Density Polyethylene Sheathing	LLDPE	It is used for the sheath of communication cables, control cables, signal cables and power cables with high environmental crack resistance requirements, and the maximum working temperature is 70°C.
Australian standard HDPE jacket	HDPE	For communication cables, optical cables, submarine cables, power cables, the maximum operating temperature is 90 °C.

Performance

Typical mechanical and electrical properties

Experimental project		Units	Specifications
Experimental project		Units	LLDPE	HDPE
Melt Flow Rate	≤	g/10min	1.0	0.4
Density		g/cm³
black			0.920-0.945	0.950-0.978
non-black			0.915-0.930	0.935-0.960
tensile strength	≥	Mpa	10	22
Elongation at break	≥	%	400
Environmental stress cracking resistance	≥	F₀/h	250
110℃ air oven heat aging for 336 hours
tensile strength	≥	Mpa	13	20
Elongation at break	≥	%	600	600
Aging 0-1008 hours
Intensity change rate	±	%	25	25
Rate of change in elongation	±	%	25	25
Aging 504-1008 hours
Intensity change rate	±	%	15	15
Rate of change in elongation	±	%	15	15
200℃ oxidative induction period	≥	min	30
Carbon black content	≥	%	2
Carbon black dispersion	≤	level	3
Vicat softening point	≥	℃	110
Low temperature elongation at break (-18℃)	≥	%	175
Dielectric Strength	≥	MV/m	25
Volume resistivity at 20℃	≥	Ω.m	1.0×10¹⁴
Hardness (Shore D/1S)	≥	D	—	60
Moisture content	≤	ppm	600

Instructions

If the product needs to be dried before use when the product has a long storage period, it is recommended to use blast drying. It can be extruded with a single screw extruder of L/D≥25. It is better to enter the hot material into the extruder. Recommended reference The extrusion temperature is as follows:

Workspace		Zone 1	Zone 2	Zone 3	Zone 4	Zone 5	Zone 6	handpiece
Temperature °C	LLDPE	170	180	190	200	210	210	200
Temperature °C	HDPE	180	190	200	210	220	220	210

Packaging, Shipping, Storage

1. The inner bag of the product is packed with polyethylene film bags, and the outer bag is packed with plastic woven bags or composite bags. The net weight of each bag is 25± 0.2kg, and other packaging and unit net weights can also be used.

2. Transportation and storage

The product shall not be exposed to sunlight and rain during transportation, and shall be kept clean, dry, free from contamination, and kept in a complete package.

The product should be stored in a clean, dry, cool and ventilated warehouse, and the storage period is 6 months from the production date.