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LDPE 美国陶氏DFDA-1648 NT EXP1 无卤阻燃级

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所在地	广东东莞	可售量 10000公斤

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DFDA-1648 NT EXP1

Non-Halogen, Flame Retardant, Thermoplastic Jacket Compound

The Dow Chemical Company

产品说明：

DFDA-1648 NT EXP1 is a thermoplastic, non-halogen, flame retardant jacketing compound. It is designed for general purpose cable jacket applications.

Features
DFDA-1648 NT EXP1 provides the following features:

Processing and cabling attributes

Ease of extrusion, without the need for special screws

Good anti-scratch whitening

Good surface appearance (shining and smoothness)

Good crack resistant on majority of armored cables

Excellent combustion properties (lower smoke, lower acidity)

Excellent electricals

High volume resistivity (could be used as 0.6/1 kV insulation in dry conditions)

Low dielectric constant and dissipation factor

Competitive mechanical properties (tensile elongation, tear strength, abrasion resistance, flexibility)

Good thermal properties (low temperature performance, good hot deformation)

Environmentally friendly (lead-free, halogen free, sulfur/antimony-free)

Colorable with EVA based color concentrates

Specifications
For many cable designs, DFDA-1648 NT EXP1 will meet UL-1685, IEEE-383, CSA FT-4, IEC-60332-3C vertical tray cable burn tests, and IEC-61034 smoke generation tests

基本信息
用途	Flame Retardant Jacketing Industrial Cable Jacketing LSZH Jacketing 电线电缆应用通信电线护套
机构评级	CSA FT-4 IEC 60332-3 IEEE 383 UL 1685

物理性能	额定值	单位制	测试方法
比重	1.45	g/cm3	ASTM D792

硬度	额定值	测试方法
肖氏硬度		ASTM D2240
邵氏 A	93	ASTM D2240
邵氏 D	46	ASTM D2240

机械性能	额定值	单位制	测试方法
抗张强度	11.7	MPa	ASTM D638
伸长率(断裂)	250	%	ASTM D638

弹性体	额定值	单位制	测试方法
撕裂强度	8.00	kN/m	ASTM D470

老化	额定值	单位制	测试方法
拉伸强度保持率 - 7 days (121°C)	100	%	ASTM D638
伸长保持率 - 7 days (121°C)	80	%	ASTM D638

热性能	额定值	单位制	测试方法
热变形			UL 1581
90°C	1.3	%	UL 1581
100°C	2.7	%	UL 1581
121°C	87	%	UL 1581
氧感应时间 - Al pans, no screen, 60 ml oxygen/min (220°C)	32	min	ASTM D3895

可燃性	额定值	单位制	测试方法
毒性	1.90		NES 713
酸性气体排放 pH	5.30		IEC 754-2
酸性气体排放传导性	0.630	μS/mm	IEC 754-2
温度指数（燃烧） - Critical	300	°C	NES 715
烟雾 (2.54 mm)	23.0		NES 711
烟雾密度			ASTM E662
Flaming Mode - D1.5 : 508.0 μm	1.4		ASTM E662
Flaming Mode - D1.5 : 2.54 mm	1.5		ASTM E662
Flaming Mode - D4.0 : 508.0 μm	9.1		ASTM E662
Flaming Mode - D4.0 : 2.54 mm	2.5		ASTM E662
Flaming Mode - Dm, (corr.) : 508.0 μm	22		ASTM E662
Flaming Mode - Dm, (corr.) : 2.54 mm	110		ASTM E662
Non-flaming Mode - D1.5 : 508.0 μm	6.9		ASTM E662
Non-flaming Mode - D1.5 : 2.54 mm	0.040		ASTM E662
Non-flaming Mode - D4.0 : 508.0 μm	55		ASTM E662
Non-flaming Mode - D4.0 : 2.54 mm	28		ASTM E662
Non-flaming Mode - Dm, (corr.) : 508.0 μm	130		ASTM E662
Non-flaming Mode - Dm, (corr.) : 2.54 mm	330		ASTM E662

热性能	额定值	单位制	测试方法
脆化温度	-40.0	°C	ASTM D746

电气性能	额定值	单位制	测试方法
体积电阻率(23°C)	2.1E+14	ohms·cm	ASTM D257
介电常数			ASTM D150
60 Hz	3.80		ASTM D150
100 kHz	3.43		ASTM D150
1 MHz	3.50		ASTM D150
耗散因数			ASTM D150
60 Hz	0.034		ASTM D150
100 kHz	7.0E-3		ASTM D150
1 MHz	9.0E-3		ASTM D150

可燃性	额定值	单位制	测试方法
极限氧指数	39	%	ASTM D2863

补充信息
Fluid Resistance: Oil , IRM #902, 7 days, 23°C Tensile Strength Retention: 87.6% Elongation Retention: 89.8% Oil , IRM #902, 4 hrs, 70°C Tensile Strength Retention: 75.9% Elongation Retention: 86.1% Turbine Fuel, JP-5, MIL-T-5624, 24 hrs, 23°C Tensile Strength Retention: 63.8% Elongation Retention: 74.1%

挤压说明
DFDA-1648 NT EXP1 can be processed on commercial thermoplastic extrusion equipment. Processing practices necessary to achieve optimum characteristics will be dependent on the particular equipment used and can be determined only by extrusion trials.Typical Extrusion Conditions Typical commercial extrusion conditions are shown below as a guide. Each extrusion system is unique and will require optimization of these conditions for the specific unit. EXTRUDER Screw L/D: 20:1 to 24:1 Screw Type: Single Flight Compression Ratio: 2:1 to 3:1 Screenpack: 12 or 20 mesh Draw-Down Ratio (DDR for semi pressure or tube on): Up to 3.5 TEMPERATURE PROFILE BARREL: Feed Zone: 266°F (130°C) Center Zones: 284°F (140°C) Metering Zone: 293°F (145°C) CROSSHEAD: Head: 320°F (160°C) Die: 320°F (160°C) Melt Temperature: 338°F (170°C) SCREW: Circulating Water: Neutral Compound Drying Drying before extrusion in a dehumidifying hot air dryer for a minimum of 6 hours at 140°F (60°C) is recommended to avoid jacket porosity and to improve the extrusion quality. Do not heat over 195°F (90°C).

挤压说明

DFDA-1648 NT EXP1 can be processed on commercial thermoplastic extrusion equipment. Processing practices necessary to achieve optimum characteristics will be dependent on the particular equipment used and can be determined only by extrusion trials.Typical Extrusion Conditions Typical commercial extrusion conditions are shown below as a guide. Each extrusion system is unique and will require optimization of these conditions for the specific unit. EXTRUDER Screw L/D: 20:1 to 24:1 Screw Type: Single Flight Compression Ratio: 2:1 to 3:1 Screenpack: 12 or 20 mesh Draw-Down Ratio (DDR for semi pressure or tube on): Up to 3.5 TEMPERATURE PROFILE BARREL: Feed Zone: 266°F (130°C) Center Zones: 284°F (140°C) Metering Zone: 293°F (145°C) CROSSHEAD: Head: 320°F (160°C) Die: 320°F (160°C) Melt Temperature: 338°F (170°C) SCREW: Circulating Water: Neutral Compound Drying Drying before extrusion in a dehumidifying hot air dryer for a minimum of 6 hours at 140°F (60°C) is recommended to avoid jacket porosity and to improve the extrusion quality. Do not heat over 195°F (90°C).

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