The Sixth Element (Changzhou) Materials Technology Co., Ltd is a leading graphene and graphene oxide manufacturer in China. It has over 200 patents granted and two patents licensed. The company produces a graphene thermal conductive film through an oxidation-reduction process. This film has a thermal conductivity between 1200-1800 W/mK, is flexible and lightweight, and can reduce the temperature of mobile phones by up to 10°C when used. It compares favorably to graphite sheets by being thinner, more flexible, and having a better performance-price ratio.

1. The Sixth Element (Changzhou) Materials Technology Co., Ltd
The Sixth Element
(Changzhou) Materials Technology Co., Ltd. at the
Graphene - success stories
NEEQ:831190

2. The Sixth Element (Changzhou) Materials Technology Co., LtdThe Sixth Element (Changzhou) Materials Technology Co., Ltd.
The Sixth Element at a glance
Profile
• Leading graphene/graphene oxide manufacturer
• Technology driven company
• 42 patent families - more than 200 single patents granted in China - 2 patents licensed (non
exclusive)
• ISO 9001certified since 2014 - ISO 14001: 2015 certified since 2018
• Substances EU REACH registered

3. The Sixth Element (Changzhou) Materials Technology Co., Ltd
力学性能
Graphene in fibres – example: PA6 fibre
Chemical structure

4. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Fig. Mechanical properties of PA6/graphene composite with
0.3% graphene content – in-situ polymerisation
Tensile strength: + 53%
Bending strength: + 40%
Bending modulus + 60%
Impact strength + 40%
In comparison with PA6：
70 MPa
100 MPa
1872 MPa 6.2 KJ/m2
107 MPa
140 MPa
2995.2 MPa
8.7 KJ/m2
力学性能
Graphene in fibres – example: PA6 fibre
Mechanical properties
Monofilament 0.25 mm thickness

5. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Flame retardant test up to
V0 level
Graphene in fibres – example: PA6 fibre
Flame retardant properties

6. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Graphene Oxide
氧化石墨膜
GO film
Suspension 还原氧化石墨膜
R-Graphene film
石墨烯导热膜
Thermal-conductive film
热处理
Heat treatment
石墨
Graphite
Oxidation&Intercalation
Disaggregation
涂布
Coating
Rolling
压贴
Dispersion
To obtain high thermal conductivity：Self-assembly of highly oriented graphene oxide
Advanced Materials 2009, 21, 3007-3011.
J. Phys. Chem. B,1998, 102, 4477–4482.
Sci Rep 2016, 6, 29484.
6
Basic principle：Oxidation-reduction
Graphene Thermal Conductive Film
Processing Route
Process at
Processat

7. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Graphene Thermal Conductive Film
In corporation with
Key features:
• Film thickness – customizable
• High thermal conductivity (1200 – 1800 W/mK) (xy-direction)
• Highly flexible (R1, 180° > 105 times)
• Environmentally friendly
• Good electromagnetic shielding
• High performance/price-ratio
• Thermal expansion coefficient: 10-6 /°C
• Attachable to adhesive films, foams, foils
IP Protection:
• Patents applied in China
• One PCT application

8. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Graphene Thermal Conductive Film – Application Results
Testing device

9. The Sixth Element (Changzhou) Materials Technology Co., Ltd
Graphene thermal spreading film can reduce the highest temperature of the mobile
phone by up to 10℃
Graphene Thermal Conductive Film – Application Results

10. The Sixth Element (Changzhou) Materials Technology Co., Ltd
10
Property comparison
Properties Graphene film-H (Film-H) Graphite sheet (PGS)
Technics Self-assembly and reduction of GO Synthesized from polymer precursor
Thermal-
conductive
＜40μm Graphene film=Artificial graphite film
≥40μm Graphene film behaves better than graphite sheet
Film thickness 10μm~1000μm，Customizable 17μm、25μm、40μm、50μm Fixed
Density 2.0±0.1g/cm3 Density decreases with thickness
Flexibility Superb (R1,180° ＞105 times) no breakage (R1,180° <103 times) breakage
Environmental Green Tar pollution
Intellectual Property
Research independently, with proprietary
intellectual property and manufacturing technology
Core technics in highly oriented PI
Price high performance-price ratio low performance-price ratio
0.0
0.5
1.0
1.5
2.0
2.5
3.0
10 20 30 40 50 60 70 80 90 100 110
600
800
1000
1200
1400
1600
1800
2000
Density(g/cm3
)
Density
Density
ThermalConductivity(W/(mK))
Thickness (um)
PGS
Film-H After bending
Before
bending
Before
bending
After bending
Bending position
Film-H
150um
PGS
40+40+40um
Bending test
Graphene Thermal Conductive Film

11. The Sixth Element (Changzhou) Materials Technology Co., LtdThe Sixth Element (Changzhou) Materials Technology Co., Ltd.
Graphene: the new wonder material
Thank you！
Contact: Bernhard Münzing
Sales Director
bernhard.muenzing@thesixthelement.com.cn
Mobile: 49-151 67 00 99 63