NANOFRONT™ ULTRA FINE CHOPPED POLYESTERFIBER FOR RUBBER MIXINGApplication

Sea and Island bi-component fiber

Island part
Sea part: PE
１．Chopped fiber of Sea and Island bi-component fiber-- Island part is Polyester submicron fiber : 400nm or 700nm diameter-- Sea part is polyethylene ; could be compatible with rubber matrix by heat mixing
２．Feature-- Good dispersion and high orientation effect by heat mixing-- By adding only half quantity of Nanofront™ fiber the process can achieve higher
performance as compared with using high performance of conventional fiber-- Low Carbon Footprint of products (CFP) due to NON-DIP treatment-- By adding Nanofront™ , an effect of abrasion resistance can also be expected.
３．Performance・Sample size ・Condition
Tensile properties(Fiber axis direction) Thickness:2mm Speed:500m/m
Width: 5mmLoad(MPs)4

Chopped fiber
reinforcement

Nanofront™ reinforcement
High performance conventional fiberreinforcement

2PET conventional fiber reinforcement
Without fiber reinforcement
0100%
Strain(％)-- High aspect ratio and number of fiber produces high modulus and high durability.
0%

Diameter X Length

Number of fiber

Aspect ratio(Length / Diameter)

400㎚×0.5㎜

25,0001,250

700㎚×1.0㎜

4,080

1,429

20㎛×5㎜ : conventional fiber

1250

RESORCINOL-FORMALDEHYDE(RF) FREE ADHESIVETECHNOLOGY
Our new adhesive technology consistsof a polymer which enhances adhesion
and can be used as an alternative to
RF which has been shown to have
harmful effects on the human body.
The polymer, which is reticulated byintermolecular interaction, achieves ahigh level of adhesiveness equivalent
to that of an RFL adhesive.

R: Resorcinol(Skin Irritationand endocrinedisruptor)

F: Formaldehyde(Carcinogenicity)

Schematic diagram for adhesive bonding between fiber and rubber
RF-free adhesive system
RFL adhesive system

Resorcinol/Formaldehyde

RFL adhesives have long been used toreinforce rubber products with fiber tomaintain strength and morphological stability.

Ingredient polymer fills due to the perfectbalance of its entanglement structure andchemical affinity.
<RFL dipped cord> <RF-free dipped cord>

Dipped cord performance (example)
Room temp.

RF-freedippedcord

Elevated temp.
(130C=266F)
Cord construction:PET 1670dtex/1X2
With NR/SBR rubber
for tires

RFL
dippedcord010 20 30 40
Peel Adhesion [N/cord]

Basic adhesive technology has beendeveloped for tires and we are applying
our technology for hoses and belts.

New Chemical Recycling Polyester Fibers
for Tire Reinforcement
Chemical recycling process
Fragmentation

Depolymerization

Textile waste

PET Fragment

Polymerization& Melt Spinning

EGForeignmaterial

Recycling PET

Raw Material
DMT or BHETThe performance of our chemically recycled PET is equivalent to commercial fibers madefrom petroleum-derived resin without compromising quality.
Compared to these conventional fibers, our new technology also reduces environmental
impact by recapturing and repurposing more of the polyester waste stream.

PET Cord Properties (Example)
Cord construction 1670dtex/2 (Z10 X S10 turn/inch)
Fiber TypeHMLS

Chemical Recycling/ Petroleum-derived

HMLS (High Tenacity)

ChemicalRecycling

Petroleumderived

ChemicalRecycling

Petroleumderived

Tenacity (N)

214

215

230

230

EAB (%)

16.3

16.4

13.1

13.1

Elongation at 66N (%)

4.0

4.0

4.0

4.0

Heat Schrinkage@180℃ (%)

5.6

5.7

6.6

6.6

2ply Peal Adhesion (N/inch)

149146

148

147

Pull Adhesion (N)

214

216

224

223

Disk Fatigue (Retention %)

92

92

92

92

Recycling PET fiber has same properties as petroleum-derived one.