SI-LINK™ DFDA-6451 NT Datasheet,PE Copolymer,The Dow Chemical Company-SHANGHAI SUSHENG

Message
SI-LINK cross-linked polyethylene: power cable insulation material SI-LINK™Cross-linked polyethylene DFDA-6451 Natural has a density of 0.922 and a melt index of 1.5. It is a silane-ethylene copolymer applied to medium voltage power cables. After co-extrusion with the DFDB-5480 Natural catalyst masterbatch, the DFDA-6451 Natural can undergo a crosslinking reaction after wet diffusion into the insulating material. Specifications SI-Link DFDA-6451 NT / SI-Link DFDB 5480 can be used as an insulating material for XLPE medium voltage cables. When processed by reliable extrusion and cross-linking processes, DFDA-6451 NT/DFDB 5480 NT can meet the general requirements for medium voltage cables specified in IEC 60502.

General Information
Uses	Low voltage insulation Wire and cable applications
Forms	Particle
Processing Method	Profile extrusion molding

Physical	Nominal Value	Unit	Test Method
Density	0.922	g/cm³	ASTM D1505
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)	1.5	g/10 min	ASTM D1238

Mechanical	Nominal Value	Unit	Test Method
Tensile Strength ¹	16.5	MPa	ASTM D638
Tensile Elongation (Break)	350	%	ASTM D638

Aging	Nominal Value	Unit	Test Method
Tensile strength retention- 7 days (121°C)	90	%	ASTM D638
Elongation retention rate- 7 days (121°C)	95	%	ASTM D638

Thermal	Nominal Value	Unit	Test Method
Hot Creep ²	100	%	ICEA T-28-562

Electrical	Nominal Value	Unit	Test Method
Power Factor	2.50E-4	rad	ASTM D150
Dielectric Constant	2.30		ASTM D150

Additional Information
Product Handling SI-LINK® PE base resins are inherently crosslinkable, but the reaction is extremely slow when the crosslinking catalyst is not present. Therefore, we recommend that under good warehouse conditions - (dry conditions, between 10 and 30 °C in temperature), SI-LINK® PE base resins should be used within one year of purchase. Opened containers should be used promptly to avoid moisture pickup or contamination. Storage: The environment or conditions of storage greatly influences the recommended storage time. Storage under extreme conditions may affect the quality, processing, or performance of the product. Storage should be in accordance with good manufacturing practices. The recommended storage conditions are dry conditions with temperatures between 50°F and 86°F (10°C and 30°C). When stored under these conditions, the product may be used by the customer for up to one year from the date of sale or two years from the date of manufacture, whichever comes first. It is recommended that the practice of using the product on a first-in / first-out basis be established.

Additional Information

Product Handling SI-LINK® PE base resins are inherently crosslinkable, but the reaction is extremely slow when the crosslinking catalyst is not present. Therefore, we recommend that under good warehouse conditions - (dry conditions, between 10 and 30 °C in temperature), SI-LINK® PE base resins should be used within one year of purchase. Opened containers should be used promptly to avoid moisture pickup or contamination. Storage: The environment or conditions of storage greatly influences the recommended storage time. Storage under extreme conditions may affect the quality, processing, or performance of the product. Storage should be in accordance with good manufacturing practices. The recommended storage conditions are dry conditions with temperatures between 50°F and 86°F (10°C and 30°C). When stored under these conditions, the product may be used by the customer for up to one year from the date of sale or two years from the date of manufacture, whichever comes first. It is recommended that the practice of using the product on a first-in / first-out basis be established.

Extrusion	Nominal Value	Unit
Drying Temperature	60.0 - 71.1	°C
Drying Time	4.0 - 6.0	hr
Melt Temperature	149 - 232	°C

Extrusion instructions
DFDA-6451 Natural will extrude with excellent surface quality and without extrusion scorch if the accompanying catalyst masterbatch, DFDB-5480 Natural, is kept dry. It is especially recommended that the catalyst masterbatch be dried at 140°F-160°F (60°-70°C) for four to six hours using dehumidified air prior to mixing and extrusion. Melt temperatures in the range of 300°F-450°F (150°C-230°C) have been successfully used.After extrusion of the appropriate mixture of this product and its catalyst masterbatch, crosslinking can be achieved by allowing moisture to diffuse into the product. Most fabricators find that a hot water bath or sauna work best. Most manufacturers aim for a hot creep elongation of 100%. The actual time to achieve this degree of crosslinking is dependent on the insulation thickness and the water or sauna temperature.

Extrusion instructions

DFDA-6451 Natural will extrude with excellent surface quality and without extrusion scorch if the accompanying catalyst masterbatch, DFDB-5480 Natural, is kept dry. It is especially recommended that the catalyst masterbatch be dried at 140°F-160°F (60°-70°C) for four to six hours using dehumidified air prior to mixing and extrusion. Melt temperatures in the range of 300°F-450°F (150°C-230°C) have been successfully used.After extrusion of the appropriate mixture of this product and its catalyst masterbatch, crosslinking can be achieved by allowing moisture to diffuse into the product. Most fabricators find that a hot water bath or sauna work best. Most manufacturers aim for a hot creep elongation of 100%. The actual time to achieve this degree of crosslinking is dependent on the insulation thickness and the water or sauna temperature.

Note Message
1 .	510 mm/min
2 .	Cured 2.5 hours in 90°C water, 30 mil wall

Category:	PE Copolymer , Crosslinkable Polyethylene for Moisture Curable Power Cable Insulation
Manufacturer:	The Dow Chemical Company
Trademark:	SI-LINK™
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	5QGzcO_SI-LINK-DFDA-6451-NT.pdf
PRICE:	Order Products email sales@su-jiao.com

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