BUTENE
TECHNOLOGY APPLICATION
Since the early 1990’s, linear low density polyethylenes (LLDPEs) have come to the fore in rotational moulding applications, because of their outstanding physical properties (excellent environmental stress crack resistance and impact performance) and ease of processing. Our butene based Ge-3645 & Ge-3938 LLDPE powders are eminently suitable for rotational moulding for these reasons.
During the manufacture of Polyethylene (PE) a variety of catalyst and co-monomers can be used which also have an effect on the properties of the PE. Butene (C4) comonomer is the most common providing low cost, good mechanical properties and the most widely used.
Ge-3645 & Ge-3938 are both butene co-monomer based linear low density polyethylene (LLDPE) grade additivated with antioxidants and UV stabilizers. Items produced by these grades have a very good balance between mechanical properties and ESCR resistance. They possesses good hardness & exhibits good processability.
Grades Detail
Grading of GreenEthene powders is based on density, melt flow, impact resistance, rigidity, ESCR (Environmental Stress Crack Resistance), grind type and custom compound colors.
| Butene Grades Specifications | Grade Name | |||||
| Ge – 3645 | Ge – 3938 | |||||
| Specimen Type | ||||||
| Parameter | Standard | UOM | Compression Molded | Rotomolded | Compression Molded | Rotomolded |
| MFI | ASTM D1238 | gm/10 min | 4.5 | 3.8 | ||
| Density | ASTM D 1505 | gm/cm3 | 0.936 | 0.939 | ||
| Recommended PIAT * | In-lab StdPrc * | oC | 190 oC | 190 oC | ||
| Tensile Strength at Yield | ASTM D638 | (kg/cm2) (Mpa) (Psi) | (180) (17.5) (2540) | (185) (18) (2610) | (215) (21) (3050) | (210) (20.5) (2975) |
| Tensile Strength at Break | ASTM D638 | (kg/cm2) (Mpa) (Psi) | - | (120) (11.75) (1705) | - | (120) (11.75) (1705) |
| IZOD Impact Strength | ASTM D256 | Kg.cm/cm | 25 | 22 | ||
| ARM Low Temperature | ARM Standard (3.17mm @ -40 oC/oF) | (J/mm) (ft/lbs) | - | (22) (80) | - | (22) (80) |
| Flexural Modulus At 1% Strain | ASTM D790 | (kg/cm2) (Mpa) (Psi) | (6000) (590) (85575) | (2300) (225) (32630) | (9000) (880) (127625) | (2300) (225) (32630) |
| Elongation at Yield | ASTM D638 | % | 20 | 14 | 15 | 12 |
| Elongation at Break | ASTM D638 | % | 600 | 165 | 350 | 110 |
| ESCR | ASTM D1693 | Hrs | 350 | 350 | 300 | 300 |
*PIAT – For moulding oven temperature was 300 oC and cube mould of size 175mmx175mmx175mm was moulded with wall thickness of 3.17mm.
REGULATORY INFORMATION
Ge-3645& Ge-3938 meets the requirement stipulated in standard IS:10141:2001 on “Specificationfor Polyethylene for safe use in contact with foodstuff, pharmaceuticals & Drinking Water”. It also conformsto IS 12701:1996 –“Specification For Rotational Moulded Polyethylene Water Storage Tanks.”.
CUSTOM GRADES
Different rotomoulding applications can require different grades of material for specific performance requirements. We produce customize gradesby compounding different materials, additives and by altering the grinding specifications as required.
STORAGE CONDITIONS
Powders are packed in specialized bag on fully automatic packing lines in 20 kg packing. The bag design is customized to ensure logistic convenience while handling. When filled it takes shape of box that ensures easy handling while loading and unloading on stacks/pallets. Being packed on automised packing lines ensures exact weight, leakage proof along with excellent moisture resistance. The bags are marked with powder batch details on 2 sides which ensures no matter how it is stacked, it is easy for operators to identify the material. Bags should be stored in dry/closed conditions at temperature below 50 ℃.
Applications
