CONTINUUM™ DGDA-2502 BK

CONTINUUM™ DGDA-2502 BK Bimodal Polyethylene Resin is produced using UNIPOL™ II process technology. This product may be utilized for pipe applications where long-term hydrostatic strength combined with outstanding resistance to slow crack growth, rapid crack propagation, and high melt strength is desired. Suitable applications include natural gas distribution pipes, large diameter industrial piping, mining, sewage, and municipal water service lines. DGDA-2502 BK has excellent processability for the full range of pipes sizes and wall thicknesses to include heavy wall pipe.

Industrial Standards Compliance:
ASTM D 3350: cell classification

• Natural - PE445574A

• Black - PE445574C (see Notes 1 & 2)

Plastics Pipe Institute (PPI): TR-4

• Natural Pipe - CONTINUUM™ DGDA-2502 NT

• ASTM PE4710 pipe grade - 1600psi HDB,1000psi HDS @ 73oF, and 1000psi HDB @ 140oF

• Black Pipe - CONTINUUM DGDA-2502 BK (see Notes 1 & 2)

• ASTM PE4710 pipe grade - 1600psi HDB, 1000psi HDS @ 73oF, and 1000psi HDB @ 140oF

NSF International : Standard 14 & 61

• Natural Pipe - DGDA-2502 NT

• Black Pipe - DGDA-2502 BK (see Notes 1 & 2)

Consult the regulations for complete details.

Notes:
(1) The first five numbers of the cell classification are based on natural resin. The last number and letter are based on black resin (natural resin plus 6.5% DFNF-0092).
(2) Natural resin extruded under proper conditions with carbon black masterbatch DFNF-0092 (6.5%).

基本信息
添加剂	加工助剂
机构评级	ASTM D 3350 PE445574A ASTM D 3350 PE445574C NSF 未评级 PPI TR-4
形式	粒子

物理性能	额定值	单位制	测试方法
比重			ASTM D792
本色		g/cm³	ASTM D792
黑色 1		g/cm³	ASTM D792
熔流率（熔体流动速率）			ASTM D1238
190°C/2.16 kg		g/10 min	ASTM D1238
190°C/21.6 kg		g/10 min	ASTM D1238

硬度	额定值	单位制	测试方法
肖氏硬度 (邵氏 D)			ASTM D2240

机械性能	额定值	单位制	测试方法
抗张强度			ASTM D638
屈服		MPa	ASTM D638
断裂		MPa	ASTM D638
伸长率			ASTM D638
屈服		%	ASTM D638
断裂		%	ASTM D638
弯曲模量 2		MPa	ASTM D790B
抗快速裂缝扩展，Pc - S-4 (32ºF) 3		bar	ISO 13477
抗快速裂缝扩展，Tc - S-4 (5 bar) 4		°C	ISO 13477
裂纹缓慢扩展 PENT - 2.4 MPa (176ºF)		hr	ASTM F1473

热性能	额定值	单位制	测试方法
热稳定性		°C	ASTM D3350
载荷下热变形温度 (0.45 MPa, 未退火)		°C	ASTM D648
脆化温度		°C	ASTM D746
维卡软化温度		°C	ASTM D1525
溶融温度（DSC） 5		°C	内部方法

备注
1 .	Natural resin extruded under proper conditions with carbon black masterbatch DFNF-0092 BK (6.5%)
2 .	方法 I (三点负荷)
3 .	Pipe diameter of 10 inch IPS (25.4 cm) and Standard Diameter Ratio (SDR) 11
4 .	Pipe diameter of 10 inch IPS (25.4 cm) and Standard Diameter Ratio (SDR) 11
5 .	113°C