Linear low-density polyethylene (LLDPE) granules. Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins. Linear low-density polyethylene differs structurally from conventional low-density polyethylene (LDPE) because of the absence of long chain branching. The linearity of LLDPE results from the different manufacturing processes of LLDPE and LDPE. In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher alpha-olefins as butene, hexene, or octene. The copolymerization process produces an LLDPE polymer that has a narrower molecular weight distribution than conventional LDPE and in combination with the linear structure, significantly different rheological properties.[citation needed]
Contents 1 Production and properties 2 Processing 3 Application 4 See also 5 References 6 External links Production and properties[edit] The production of LLDPE is initiated by transition metal catalysts, particularly Ziegler or Philips types of catalyst. The actual polymerization process can be done either in solution phase or in gas phase reactors. Usually, octene is the comonomer in solution phase while butene and hexene are copolymerized with ethylene in a gas phase reactor. LLDPE has higher tensile strength and higher impact and puncture resistance than does LDPE. It is very flexible and elongates under stress. It can be used to make thinner films, with better environmental stress cracking resistance. It has good resistance to chemicals. It has good electrical properties. However, it is not as easy to process as LDPE, has lower gloss, and narrower range for heat sealing
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
0.6 |
D1238 |
|
Density |
g/cm3 |
0.923 |
D1505 |
|
Thermal properties @ |
|||
|
Flexural modulus |
°C |
107 |
D1525 |
|
Notched Izod impact at 23°C |
°C |
127 |
D3418 |
|
Mechanical Properties @ |
|||
|
Flexural modulus |
MPa |
385 |
D790 |
|
Tensile Strength at Yield |
MPa |
11.5/12 (MD/TD) |
D882 |
|
Tensile Strength at Break |
MPa |
47/28 (MD/TD) |
D882 |
|
Tensile Elongation at Break |
% |
>600 |
D882 |
|
Elmendorf Tear |
gr |
130/470 (MD/TD) |
D1922 |
|
Hardness |
Shore D |
55 |
D2240 |
|
ESCR |
hr |
>1000 |
1693 |
|
Oncompression molded according to ASTM D1928C |
|||
LL-235F6
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
0.7 |
D1238 |
|
Density |
g/cm3 |
0.922 |
D1505 |
|
Thermal properties @ |
|||
|
Flexural modulus |
°C |
107 |
D1525 |
|
Notched Izod impact at 23°C |
°C |
126 |
D3418 |
|
Mechanical Properties @ |
|||
|
Flexural modulus |
MPa |
385 |
D790 |
|
Tensile Strength at Yield |
MPa |
17/14 (MD/TD) |
D882 |
|
Tensile Strength at Break |
MPa |
52/42 (MD/TD) |
D882 |
|
Tensile Elongation at Break |
% |
>700 |
D882 |
|
Elmendorf Tear |
gr |
78/455 (MD/TD) |
D1922 |
|
Hardness |
Shore D |
55 |
D2240 |
|
ESCR |
hr |
>1000 |
1693 |
|
Oncompression molded according to ASTM D1928C |
|||
LL-235F7
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
2.1 |
D1238 |
|
Density |
g/cm³ |
0.952 |
D1505 |
|
Thermal Properties |
Unit |
Value |
Test Method |
|
Vicat Softening Point |
°C |
124 |
D1525 |
|
Molded Properties |
Unit |
Value |
Test Method |
|
Flectural Modulus |
Mpa |
1000 |
D790 |
|
Tensile Strength at Yield |
Mpa |
25 |
D790 |
|
Tensile Strength at Break |
Mpa |
38 |
D638 |
|
H.D.T |
°C |
78 |
D648 |
|
Notched Izod Impact @ 23 °C |
J/m |
180 |
D256/A |
CC52502SU
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
18 |
D1238 |
|
Density |
g/ml |
0.952 |
D1505 |
|
Thermal Properties @ |
Unit |
Typical Value |
Test Method |
|
Vicat Softening Point |
°C |
121 |
D1525 |
|
Moulded Properties @ |
Unit |
Typical Value |
Test Method |
|
Flexural Modulus |
MPa |
1200 |
D790 |
|
Notched Izod Impact @ 23 °C |
J/m |
19 |
D256/A |
|
@ on compression moulded specimen obtained according to ASTM D 1928°C |
|||
HD52518
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
4 |
D1238 |
|
Density |
g/ml |
0.938 |
D1505 |
|
Physical properties @ |
|||
|
Flexural Modulus |
MPa |
650 |
D790 |
|
Tensile Strength at yield |
MPa |
15 |
D638 |
|
Tensile Strength at break |
% |
800 |
D638 |
|
Charpy Unnotched impact Strength |
KJ/m2 |
25 |
D256 |
|
Vicat Softening Temperature |
°C |
115 |
D1525 |
|
Durometer Hardness |
Shore D |
60 |
D2240 |
|
@ on compression moulded specimen obtained according to ASTM D 1928°C |
|||
MD38504UV
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
1.8 |
D1238 |
|
|
Density |
g/ml |
0.922 |
D1505 |
|
|
Film properties @ |
||||
|
Dart Impact |
g |
|
67 |
D1709 |
|
Elmendorf Tear |
g |
MD/TD |
127/332 |
D1922 |
|
Tensile Strength at yield |
MPa |
MD/TD |
12/12 |
D882 |
|
Tensile Strength at break |
MPa |
MD/TD |
37/32 |
D882 |
|
Ultimate elongation |
% |
MD/TD |
783/888 |
D882 |
|
Haze |
% |
|
34 |
D1003 |
|
Gloss 45° |
|
|
24 |
D2457 |
|
@
25 micron film obtained on Collin 25, B.u.R. 2.5: 1, Temp.
profile 155 |
||||
|
Recommended processing conditions |
||||
|
Melt Temperature |
°C |
190-230 |
||
|
Blow up ratio |
|
2.0-3.0 |
||
|
Die Gap |
mm |
2.0-2.5 |
||
|
Thickness |
micron |
15-150 |
||
190°C.LL22502AA LL22502KJ
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
0.95 |
D1238 |
|
|
Density |
g/ml |
0.923 |
D1505 |
|
|
Film properties @ |
||||
|
Dart Impact |
g |
|
70 |
D1709 |
|
Elmendorf Tear |
g |
MD/TD |
105/436 |
D1922 |
|
Tensile Strength at yield |
MPa |
MD/TD |
11/12 |
D882 |
|
Tensile Strength at break |
MPa |
MD/TD |
41/31 |
D882 |
|
Ultimate elongation |
% |
MD/TD |
648/780 |
D882 |
|
Haze |
% |
|
34 |
D1003 |
|
Gloss 45° |
|
|
24 |
D2457 |
|
@
25 micron film obtained on Collin 25, B.u.R. 2.5: 1, Temp.
profile 155 |
||||
|
Recommended processing conditions |
||||
|
Melt Temperature |
°C |
190-230 |
||
|
Blow up ratio |
|
2.0-3.0 |
||
|
Die Gap |
mm |
2.0-2.5 |
||
|
Thickness |
micron |
15-150 |
||
LL22501AA LL22501KJ
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
1.0 |
D1238 |
|
Density |
g/cm³ |
0.952 |
D1505 |
|
Thermal Properties |
Unit |
Value |
Test Method |
|
Vicat Softening Point |
°C |
123 |
D1525 |
|
Molded Properties |
Unit |
Value |
Test Method |
|
Flectural Modulus |
Mpa |
800 |
D790 |
|
Tensile Strength at Yield |
Mpa |
25 |
D790 |
|
Tensile Strength at Break |
Mpa |
36 |
D638 |
|
H.D.T |
°C |
78 |
D648 |
|
Notched Izod Impact @ 23 °C |
J/m |
80 |
D256/A |
CC52501
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
|
Melt Index (190 °C / 2.16Kg) |
g/10 min |
0.4 |
D1238 |
|
|
Density |
g/cm3 |
0.935 |
D1505 |
|
|
Thermal properties @ |
|
|||
|
Vicat Softening Point |
°C |
120 |
D1525 |
|
|
Melting Point |
°C |
130 |
D3418 |
|
|
Mechanical Properties @ |
|
|||
|
Flexural modulus |
MPa |
640 |
D790 |
|
|
Tensile Strength at Yield |
MPa |
18 |
D638 |
|
|
Tensile Strength at Break |
MPa |
27 |
D638 |
|
|
Tensile Elongation at Break |
% |
>800 |
D638 |
|
|
Notched Izod Impact @ 23 °C |
j/m |
700 |
D256/A |
|
|
Hardness |
Shore D |
61 |
D2240 |
|
|
ESCR |
hr |
>1000 |
1693 |
|
|
Oncompression molded according to ASTM D1928C |
|
|||
MD3510
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190 °C / 2.16Kg) |
g/10 min |
0.6 |
D1238 |
|
Density |
g/cm3 |
0.935 |
D1505 |
|
Thermal properties @ |
|||
|
Vicat Softening Point |
°C |
118 |
D1525 |
|
Melting Point |
°C |
129 |
D3418 |
|
Mechanical Properties @ |
|||
|
Flexural modulus |
MPa |
640 |
D790 |
|
Tensile Strength at Yield |
MPa |
18 |
D638 |
|
Tensile Strength at Break |
MPa |
25 |
D638 |
|
Tensile Elongation at Break |
% |
>800 |
D638 |
|
Notched Izod Impact @ 23 °C |
j/m |
600 |
D256/A |
|
Hardness |
Shore D |
61 |
D2240 |
|
ESCR |
hr |
>1000 |
1693 |
|
Oncompression molded according to ASTM D1928C |
|||
MD3520
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
|
Melt Index (190 °C / 2.16Kg) |
g/10 min |
4 |
D1238 |
|
|
Density |
g/cm3 |
0.935 |
D1505 |
|
|
Thermal properties @ |
|
|||
|
Vicat Softening Point |
°C |
112 |
D1525 |
|
|
Mechanical Properties @ |
|
|||
|
Flexural modulus |
MPa |
640 |
D790 |
|
|
Tensile Strength at Yield |
MPa |
17.5 |
D638 |
|
|
Tensile Strength at Break |
MPa |
12 |
D638 |
|
|
Hardness |
Shore D |
60 |
D2240 |
|
|
Notched Izod Impact @ 23 °C |
J/m |
100 |
D256/A |
|
|
Oncompression molded according to ASTM D1928C |
|
|||
MD35504
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
11 |
D1238 |
|
|
Density |
g/ml |
0.952 |
D1505 |
|
|
Physical properties @ |
|
|
||
|
Flexural modulus |
MPa |
1200 |
D709 |
|
|
Notched Izod impact at 23°C |
J/m |
22 |
D256/A |
|
|
Vicat softening point |
°C |
122 |
D1525 |
|
|
@ on compression moulded specimen obtained according to ASTM D 1928°C |
|
|
||
|
Fabrication conditions for injection moulding |
|
|
||
|
Recommended barrel temperatures range between 190 and 280°C |
|
|
||
HD52511
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
4 |
D1238 |
|
Density |
g/cm³ |
0.932 |
D1505 |
|
Physical Properties |
Unit |
Typical Value |
Test Method |
|
Flectural Modulus |
Mpa |
1350 |
D790 |
|
Notched Izod Impact @ 23 °C |
J/m |
NB |
D256/A |
|
E.S.C.R |
h |
>1000 |
D1693 |
LL32604 LL32604UV
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
11 |
D1238 |
|
|
Density |
g/ml |
0.958 |
D1505 |
|
|
Physical properties @ |
|
|
||
|
Flexural modulus |
MPa |
1450 |
D709 |
|
|
Notched Izod impact at 23°C |
J/m |
21 |
D256/A |
|
|
Vicat softening point |
°C |
125 |
D1525 |
|
|
@ on compression moulded specimen obtained according to ASTM D 1928°C |
|
|
||
|
Fabrication conditions for injection moulding |
|
|
||
|
Recommended barrel temperatures range between 190 and 280°C |
|
|
||
HD60511 HD60511UV
|
Resin Properties |
Unit |
|
Typical Value |
Test Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
|
0.5 |
D1238 |
|
|
Density |
g/cm³ |
|
0.918 |
D1505 |
|
|
Film properties @ |
|
||||
|
Dart Impact |
g |
|
125 |
D1709 |
|
|
Vicat Softening Point |
°C |
|
127 |
D1525 |
|
|
Tensile Strength at yield |
MPa |
(MD/TD) |
11/10 |
D638 |
|
|
Tensile Strength at break |
MPa |
(MD/TD) |
40/35 |
D638 |
|
|
Ultimate elongation |
% |
(MD/TD) |
600/750 |
D638 |
|
|
Elmendorf Tear |
g |
(MD/TD) |
240/400 |
D1922 |
|
|
Haze |
% |
|
30 |
D1003 |
|
|
Gloss 45° |
|
|
25 |
D2457 |
|
|
@
25 micron film obtained on Collin 25, B.u.R. 2.5: 1, Temp.
profile 155 |
|
||||
HPLL18X
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
2.1 |
D1238 |
|
|
Density |
g/cm³ |
0.952 |
D1505 |
|
|
Thermal Properties |
Unit |
Value |
Test Method |
|
|
Vicat Softening Point |
°C |
124 |
D1525 |
|
|
Molded Properties |
Unit |
Value |
Test Method |
|
|
Flectural Modulus |
Mpa |
1000 |
D790 |
|
|
Tensile Strength at Yield |
Mpa |
25 |
D790 |
|
|
Tensile Strength at Break |
Mpa |
38 |
D638 |
|
|
H.D.T |
°C |
78 |
D648 |
|
|
Notched Izod Impact @ 23 °C |
J/m |
180 |
D256/A |
|
CC52502
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
5 |
D1238 |
|
|
Density |
g/cm³ |
0.952 |
D1505 |
|
|
Thermal Properties |
Unit |
Typical Value |
Test Method |
|
|
Vicat Softening Point |
°C |
124 |
D1525 |
|
|
Molded Properties |
Unit |
Typical Value |
Test Method |
|
|
Flectural Modulus |
Mpa |
1200 |
D790 |
|
|
Tensile Strength at Yield |
Mpa |
27 |
D638 |
|
|
Tensile Strength at Break |
Mpa |
13 |
D638 |
|
|
H.D.T |
°C |
67 |
D648 |
|
|
Notched Izod Impact @ 23 °C |
J/m |
29 |
D256/A |
|
HD52505
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
0.8 |
D1238 |
|
|
Density |
g/cm³ |
0.953 |
D1505 |
|
|
Thermal Properties |
Unit |
Value |
Test Method |
|
|
Vicat Softening Point |
°C |
125 |
D1525 |
|
|
Molded Properties |
Unit |
Value |
Test Method |
|
|
Flectural Modulus |
MPa |
1100 |
D790 |
|
|
Tensile Strength at Yield |
MPa |
24 |
D790 |
|
|
Tensile Strength at Break |
Mpa |
39 |
D638 |
|
|
H.D.T |
°C |
75 |
D648 |
|
|
Notched Izod Impact @ 23 °C |
J/m |
400 |
D256/A |
|
HD5000S
|
Resin Properties |
Unit |
Typical Value |
ASTM Method |
|
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
5.5 |
D1238 |
|
|
Density |
g/ml |
0.958 |
D1505 |
|
|
Physical properties @ |
|
|||
|
Flexural modulus |
MPa |
1460 |
D790 |
|
|
Notched Izod impact at 23°C |
J/m |
30 |
D256/A |
|
|
Vicat softening point |
°C |
125 |
D1525 |
|
|
@ on compression moulded specimen obtained according to ASTM D 1928°C |
|
|||
|
Fabrication conditions for injection moulding |
|
|||
|
Recommended barrel temperatures range between 190 and 280°C |
|
|||
HD60505
|
Resin Properties |
Unit |
Typical Value |
Test Method |
|
Melt Index (190°C/ 2.16Kg) |
g/10 min |
7.5 |
D1238 |
|
Density |
g/ml |
0.956 |
D1505 |
|
Resin Properties @ |
Unit |
Typical Value |
Test Method |
|
Vicat Softening Point |
°C |
126.5 |
D1525 |
|
Moulded Properties @ |
Unit |
Typical Value |
Test Method |
|
Flexural Modulus |
MPa |
1450 |
D790 |
|
Notched Izod Impact @ 23 °C |
J/m |
24 |
D256/A |
HD60507
