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Low density polyethylene compositions

LOW DENSITY POLYETHYLENE COMPOSITIONS (Technical Specifications GOST 16336), Grade 102-02К, 107-02К, 102-10К, 107-10К, 107-61К

LDPE COMPOSITION LIGHT STABILIZED WITH INCREASED RESISTANCE TO CRACKING (Technical Specifications TU BY 300042199.057), Grade 102-10KU

LDPE COMPOSITIONS FOR HIGH SPEED EXTRUSION (Technical Specifications TU RB 300041455.070), Grade 158-281М

LDPE COMPOSITION (GOST 16337), Grade 102-14

LOW DENSITY POLYETHYLENE COMPOSITION (TECHNICAL SPECIFICATIONS TU RB 300041455.034), Grade 177-353


LOW DENSITY POLYETHYLENE COMPOSITIONS
(Technical Specifications GOST 16336)

Name Technical normative legal act Grade Properties and recommended usage
Polyethylene compositions for cable industry GOST 16336 102-02K, 107-02K resistant to thermal oxidative aging, for dyed and undyed insulation of wire and cable
102-10K, 107-10K resistant to thermal oxidative and photo-oxidative aging, black color, for cable insulation, sheaths and protection covers
107-61K resistant to thermal oxidative aging, self-extinguishing, for  insulation of wire and cable

Technical characteristics

Parameter Grade
102-02К 102-10К 107-02К 107-10К 107-61К
Highest grade 1st grade Highest grade 1st grade Highest grade 1st grade Highest grade 1st hrade Highest grade 1st grade
Size of pellets in any direction, mm 2-5 2-5 2-5 2-5 2-5
Mass fraction of pellets, %, not more:

Size above 5 up to 8 mm

Size less than 2 mm

 

0,25

0,5

 

0,25

0,5

 

0,25

0,5

 

0,25

0,5

 

0,5

0,8

Presence of metal inclusions and pellets of different color Not allowed Not allowed Not allowed Not allowed Not allowed
Density, g/cm3 0,922-0,924 Not normed 0,917-0,920 Not normed 0,960-0,980
Melt flow index, g/10 min 0,24-0,36 0,24-0,36 1,7-2,3 1,7-2,3 2,0-3,0
Melt flow index variation within lot limits, %, not more ±5 ±8 ±5 ±8 ±5 ±10 ±5 ±10
Number of inclusions, pcs, not more 0 5 Not normed 0 5 Not normed 3 10
Volatile matter content, %, not more Not normed 0,07 0,10 Not normed 0,07 0,10
Mass fraction of ash, %, not more Not normed Not normed Not normed Not normed
Environmentalstresscrackingresistance, hr., notless 500 500 2,5 2,5 3
Tensile yield point, MPa, not less 11,3 11,3 9,3 9,3 8,8
Tensile strength, MPa, not less 14,7 14,7 12,2 12,2 10,8
Relative elongation at rupture, %, not less 600 600 550 550 500
Extractive substances content,%, not more 1,4 1,7 1,4 1,7 1,0 1,2 1,0 1,2
Resistance to thermal oxidative aging, hr., not less 8 8 8 8 8
Resistance to photo-oxidative aging, hr., not less Not normed 500 Not normed 500
Dielectric loss tangent, not more:

At frequency of 1 МHz

At frequency of  500 MHz

 

3·10-4

4·10-4

 

 

3·10-4

4·10-4

 

 

3·10-3

Not normed

Dielectric penetrability, not more

At frequency of 1 МHz

At frequency of 500 МHz

 

2,3

2,3

 

 

2,3

2,3

 

 

2,6

Not normed

Electric strength (thickness of specimen-1mm) at alternating voltage of frequency 50 Hz, kV/mm, not less  

40

 

 

40

 

 

35

Thermal stability, hr., not less 0,5
Flammability Extinguishes when out of flame

LDPE COMPOSITION
LIGHT STABILIZED WITH INCREASED RESISTANCE TO CRACKING
(Technical Specifications TU BY 300042199.057),
Grade102-10KU

Intended for sheaths and protection covers of cables applied by means of extrusion, with increase resistance to cracking, black color.

Technical characteristics

Parameter Norm
Highest quality 1st grade
Size of pellets in any direction, mm 2-5
Mass fraction of pellets, %, not more

Size above 5 up to 8 mm

Size above 1 less than 2 mm

 

0,25

0,25

Presence of metal and foreign inclusions Not allowed
Melt flow index, g/10 min 0,24 – 0,36
Melt flow index variation within lot limits, % , not more ±5 ±8
Volatile matter content, %, not more 0,07 0,1
Cracking resistance, hr., not less 1000
Tensile yield point, MPa,  not less 11,3
Tensile strength, MPa, not less 14,7
Relative elongation at rupture, %, not less 600
Extractive substances content,%, not more 1,4 1,7
Resistance to thermal oxidative aging, hr., not less 8
Resistance to photo-oxidative aging, hr., not less 500
Density, g/cm3 0,9300-0,9350
Notice – The melt flow in dexatelongation limit may be less by 5%, strength and relative elongation limit satrupture may be less by 10%.

LDPE COMPOSITIONS FOR HIGH SPEED EXTRUSION
(Technical Specifications TU RB 300041455.070), Grade 158-281М

The grade is intended for manufacture of insulation covers of telephone cables.

Technical characteristics

Parameter Norm
Highest grade 1st grade
Size of pellets in any direction, mm 2-5
Mass fraction of pellets, %, not more

Size above 5 up to 8 mm

Size less than 2 mm

 

0,5

0,5

Presence of metal inclusions Not allowed
Melt flow index, g/10 min, not less 1,5 – 2,5
Melt flow index variation in a lot, % , not more ± 5 ± 8
Number of inclusions, pcs., not more 3 8
Dielectric loss tangent at frequency 106 Hz, not more · 10-4
Dielectric penetrability at frequency 106 Hz, not more 2,3
Electric strength at alternating voltage of frequency 50 Hz (sample thickness 1 mm), kV/mm, not less  

40

LDPE COMPOSITION (GOST 16337),
Grade 102-14

The grade is intended for manufacture of pipe sand fittings permitted for usage in cold water house hold systems.

Technical characteristics

Parameter Highest grade 1st grade 2nd grade
Size of pellets in any direction, mm 2 – 5
Массовая доля гранул, %, не более,

Size above 5 up to 8 mm

Size above 1 upto 2 mm

 

0,25

0,5

Mass fraction of pellets of other color, %, not more Not allowed 0,04
Mass fraction of grey and oxidized pellets, %, not more Not allowed 0,1
Density, g/cm3 Not normed
Melt flow index(nominal value)
with tolerance, %, g/10 min.
0,3±15 0,3±20
Melt flow index variation within lot limits, % , not more ±5 ±8 ±10
Volatile matter content, %, not more 0,07 0,1
Tensile yield point, Pa, not less 113·105
Tensile strength, Pa, not less 147·105
Relative elongation at rupture, %, not less 600
Resistance to cracking, hr., not less 500
Resistance to photo-oxidative aging, hr., not less 500
Smell and smack of water extracts, score, not higher 1
Extractive substances content,%, not more Not normed

FILM LOW DENSITY POLYETHYLENE COMPOSITION
(TECHNICAL SPECIFICATIONS TU RB 300041455.034),
Grade 177-353

The grade is intended for manufacture of films for packing milk and milk products, even white color.

Technical characteristics

Parameter

Norm

Size of pellets in any direction, mm 2-5
Mass fraction of pellets, %, not more,

Size above 5 up to 8 mm.

Size above 1 up to 2 mm

 

0,25

0,5

Metal inclusions Not allowed
Number of inclusions, pieces, not more 10
Melt flow index, g/10 min 0,6-1,2
Melt flow index variation in a lot, % , not more ± 10
Number of inclusions per 1 m2 of film, pieces, not more:

– from 0,5 to 1,0 mm inclusive

– above 1,0 up to 2,0 mm inclusive

– above 2 mm

 

25

5

None

Static attrition coefficient 0,1 – 0,25