- Polymer[10]
- Sandwich Panels[2]
- Contact Person : Mr. Kong Andy
- Company Name : Shandong Lecron Energy-Saving New Material Co., Ltd.
- Tel : 86-533-3085999
- Fax : 86-533-3085988
- Address : Shandong,Zibo,Chuangye Road, Economic Development Zone, Zhangdian
- Country/Region : China
low thermal conductivity pu foam for refragerator
low thermal conductivity pu foam for refragerator
1. General description
This product uses polyether polyols as the main raw materials with many different additives or materials according to a formulation to constitute blend polyols/system polyols. ZLC-1001D are fully formulated polyether polyol developed for the manufacture of polyurethane rigid foams for insulation of refrigerators, freezers and so on.
2. Characteristics
2.1 Physical characteristics
Index | Unit | ZLC-1001D |
Viscosity | 25°C,mPa.S | 400±100 |
Hydroxy Value | mgKOH/g | 360±20 |
Moisture Content | % | 1.8%~2.1% |
Density | 25°C,g/cm3 | 1.2~1.4 |
Reamark | agent/feature | low thermal conductivity |
Appearance |
| light yellow transparent liquid |
storage condition |
| cool, ventilated,dry,0~40°C |
Storage stability |
| 6 months |
2.2 Process and reactive characteristics( actual value varied depends on the processing conditions) Free Rise Time (System Temperature: 20±2°C)
Index |
| Manual mixing | Low pressure machine | High pressure machine |
Material temperature | °C | 15~25 | 15~25 | 15~25 |
Mold temperature | °C | 35~45 | 35~45 | 35~45 |
cream time | (S) | 13~15 | 11~14 | 10~13 |
gel time | (S) | 80~85 | 65~75 | 60~70 |
tack-free time | (S) | 100~130 | 85~110 | 90~110 |
free rise density | (kg/M3) | 24~25 | 24~25 | 24~25 |
Note: ratio varied depends on system
2.3 Recommended ratio:
Formation | Pbw |
Blend polyol | 100 |
Isocynate | 120 |
2.4 Foam characteristics
Testing items | Test method | QB/T2081-1995 Standard requirement | Lecron Company standard | |
Chinese standard | Referance ISO or EN CODE | |||
Apparent core density (kg/m3) ≥ | GB/T 6343-2009 | ISO 845:2006 | 28~35 | 28~35 |
Closed-cell rate (%) ≥ | GB/T10799-2008 | ISO 4590:2002 | 90 | 92 |
Initial Thermal conductivity (W/m.k) ≤ | GB/T 10295-1988 | ISO 8301:1991(E) | 0.022 | 0.0196 |
Compressive strength or 10% deformation compressive stres (kPa) ≥ |
GB/T 8813-2008 |
ISO 844:1978 |
100 |
120 |
Dimensional stability (%) |
GB/T 8811-2008 |
ISO 2796:1980 |
1 |
0.5~0.7 |
24h -20°C ≤ | ||||
24h 100°C ≤ | 1.5 |
| ||
water absorption (V/V) % | GB/T 8810-2005 | ISO 2896:2001 | 5 | 4 |
Note: the above index is just for refer, technical index can be adjusted as per customer requirement.
low thermal conductivity pu foam for refragerator
