Comparative characteristics

Fiber

Specific weight,
g/sm3

Specific
volum,
m3 /kg

Specific area
mm2 /tex

Thermal
conductance
Wt/m*К

Equilibrium
moisture
content, %

Softening
temperature,
ºС

Melting temperature,
ºС

PP

0,92

1,09

1087

0,8-1,0

0,01

140

165-175

PА

1,14

0,88

877

3,4

3,5-4,5

180

215-220

PAN

1,18

0,85

847

6,5

1,0

 

 

PES

1,38

0,72

725

2,0-3,0

0,3-0,5

230

250-260

VISCOSE

1,52

0,66

658

11-14

11-14

-

-

WOOL

1,32

0,76

756

23

12-18

-

-

COTTON

1,50

0,67

667

27,5

8-13

-

-

FLAX

1,5

 

 

 

8.2-16,3

-

-

The table shows that the polypropylene fibres and threads have the largest specific volume and specific area, the lowest specific weight, low thermal conductivity, lower equilibrium humidity among the fibers.

The main advantages of the products from PP thread:

  • some of the lightest technical yarns in the world
  • stable to drastic changes in temperature
  • do not absorb water, oil and other liquids, and any pollution is easily removed with a damp cloth
  • neutral to the action of acids, alkalis, organic solvents
  • floatable, in water in addition gaining strength up to 10%, not overgrown by microorganisms

Any product from polypropylene today is innovative and, thanks to the advanced unique consumer properties, always wins the competition with traditional materials.

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