Dow 7047NT7 - Công ty TNHH Trao Đổi Hoàn Cầu

Nhựa LLDPE DFDA-7047 NT 7 của hãng Dow có chỉ số chảy (MI) = 1 dùng để sản xuất các loại film theo phương pháp thổi.

General
Material Status	Commercial: Active
Availability	Europe North America
Additive	Antiblock: No Processing Aid: No Slip: No
Agency Ratings	EU No 10/2011 FDA 21 CFR 177.1520(c) 3.2a HPFB (Canada) No Objection JHOSPA
Forms	Pellets
Processing Method	Blown Film

Physical	Nominal Value	Unit	Test Method
Density / Specific Gravity	0.920		ASTM D792
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)	1.0	g/10 min	ASTM D1238

Films	Nominal Value	Unit	Test Method
Film Thickness - Tested	1.0	mil
Film Puncture Energy	22.0	in·lb	Internal Method
Film Puncture Force	8.00	lbf	Internal Method
Film Puncture Resistance	145	ft·lb/in³	Internal Method
Film Toughness			ASTM D882
MD	1170	ft·lb/in³	ASTM D882
TD	1150	ft·lb/in³	ASTM D882
Secant Modulus			ASTM D882
1% Secant, MD	32000	psi	ASTM D882
2% Secant, MD	27400	psi	ASTM D882
1% Secant, TD	36000	psi	ASTM D882
2% Secant, TD	30400	psi	ASTM D882
Tensile Strength			ASTM D882
MD : Yield	1550	psi	ASTM D882
TD : Yield	1600	psi	ASTM D882
MD : Break	5300	psi	ASTM D882
TD : Break	3900	psi	ASTM D882
Tensile Elongation			ASTM D882
MD : Break	580	%	ASTM D882
TD : Break	690	%	ASTM D882
Dart Drop Impact	90	g	ASTM D1709A
Elmendorf Tear Strength			ASTM D1922
MD	170	g	ASTM D1922
TD	320	g	ASTM D1922

Thermal	Nominal Value	Unit	Test Method
Vicat Softening Temperature	216	°F	ASTM D1525
Melting Temperature (DSC)	250	°F	ISO 3146

Optical	Nominal Value	Unit	Test Method
Gloss (45°)	33		ASTM D2457
Haze	19.0	%	ASTM D1003

Extrusion Notes
Fabrication Conditions For Blown Film: Screw Size: 3.5in.; 30:1ratio L/D Screw Type: DSB II Die Gap: 70 mil (1.8 mm) Melt Temperature: 420°F Output: 12 lb/hr/in. of die circumference Die Diameter: 8 in. Blow-Up Ratio: 2.5 to 1 Screw Speed: 39 rpm Frost Line Height: 51 in.