Physicochemical properties of nano-cellulose
Classification:
keywords： Physicochemical properties of nano-cellulose
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Rheological properties of NCC:
NCC physical and chemical property test data (RFP from BNCC):
|
Project |
Indicators |
NCC test data |
Remarks |
|
|
Carbohydrate content (dry cellulose basis),w/% |
|
97.0~102.0 |
99.45 |
Qualified |
|
Drying loss, w/% |
≤ |
7.0 |
3.31 |
Qualified |
|
pH |
|
5.0~7.5 |
7.31 |
Qualified |
|
Water soluble, w/% |
≤ |
0.24 |
0.11 |
Qualified |
|
Pb/（mg/kg） |
≤ |
2 |
2.10 × 10-5 |
Qualified |
NCC Heavy Metal Test Results (130719 WXY from BNCC):
|
Test Item |
Cr | As Arsenic | Cd Cadmium | Hg Mercury | Pb Lead |
|
Content in ppm |
0.5795 | 0.2264 | ND | ND | 1.366 |
|
National standard ppm Max. |
/ | 3.0 | 5.0 | / | 30 |
Callout:
A: ND means not detected. B: /means no requirement.
Methods: Conductively coupled plasma mass spectrometry. Conclusion: It can be used for injection.
NCC（Product Development Opportunites - CelluForce）：
|
Properties |
NCC |
MCC |
Kraft SW Pulp |
|
Length Length, nm |
100-120 |
N/A |
1,500,000 |
|
Diameter Diameter, nm |
5--15 |
50,000 |
30,000 |
|
Specific Surface Specific surface area, m2/g |
A 13.362 |
1.212 |
4 |
|
B ~150 |
|||
|
C ~400 |
|||
|
Crystallinity Index Crystallinity,% |
>90 |
65 |
50-60 |
|
Tensile Strength Tensile strength, MPa |
10,000 |
11.5 |
700 |
|
Elastic Modulus Modulus of elasticity, Gpa |
150 |
-- |
20 |
Specific surface area: The data provided by different documents vary greatly, mainly due to different sizes;
A：13.362，(D30－50nm，L200-400nm） Preparation and properties of cellulose nanocrystals Rods, spheres, and network
B：~150，（D10－20nm，L1000nm） A Small-Angle Scattering Study of Cellulose Whiskers in Aqueous Suspensions
C：~400，（D5－15nm，L100-120nm） Product Development Opportunites - CelluForce
Linear Temperature Expansion Coefficient（CTE）：
（http://www.engineeringtoolbox.com/linear-expansion-coefficients-d_95.html）
|
Product |
Linear Temperature Expansion Coefficient Coefficient of Linear Thermal Expansion (CTE) |
|
(10-6 m/m K) |
|
|
NCC |
0.1 |
|
Wood, pine |
5 |
|
Graphite, pure |
7.9 |
|
Steel |
13 |
|
Plaster gypsum |
16.4 |
|
ABS -glass fiber-reinforced |
30.4 |
|
Polyvinyl chloride (PVC) |
50.4 |
|
Oak Oak |
54 |
|
Polysulfone (PSO) |
55.8 |
|
Polyethylene terephthalate (PET) polyterephthalic acid plastics |
59.4 |
|
Chlorinated polyvinylchloride (CPVC) |
66.6 |
|
Polystyrene (PS) Polystyrene |
70 |
|
Polycarbonate (PC) Polycarbonate |
70.2 |
|
Nylon, general purpose |
72 |
|
ABS ( Acrylonitrile butadiene styrene) thermoplastic |
73.8 |
|
Rubber, hard |
77 |
|
Cellulose nitrate (CN) Nitrocellulose |
100 |
|
Polyamide (PA) Polyamide |
110 |
|
Polyester polyester |
123.5 |
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