1. Look at the materials. The aluminum profiles used for high-quality aluminum alloy doors and windows, thickness, strength and oxide film, etc., shall comply with the relevant national standards, the wall thickness shall be above 1.2 mm, the tensile strength shall be 157 Newtons per square millimeter, and the yield strength shall be per square millimeter. At 108 Newtons, the oxide film should be 10 microns thick. If the above standards are not met, this means that the inferior aluminum alloy doors and windows cannot be used.
2. Look at the processing. High-quality aluminum alloy doors and windows, fine processing, exquisite installation, good sealing performance, and easy to switch. Inferior aluminum alloy doors and windows, blindly selected aluminum profiles and specifications, processing rough and shoddy, sawing instead of milling, not installed as required, poor sealing performance, not only leaking wind and rain and glass bursting, but also encounter strong winds and external forces It is easy to scrape or knock down the push-pull part or the glass, and damage the person.
3. Look at the price. Under normal circumstances, high-quality aluminum alloy doors and windows due to high production costs, the price is about 30% higher than inferior aluminum alloy doors and windows. Some aluminum alloy doors and windows made of aluminum profiles with a wall thickness of only 0.6-0.8 mm have much lower tensile strength and yield strength than the relevant national standards, and are very unsafe to use.
Product name Modified Aluminum Tripolyphosphate
CAS No 13939-25-8
EC No 237-714-9
Chemical formula Al5.(P3O10)3
Appearance White Powder
Storage Keep the product in a tightly closed container ,Isolate form any source of heat or ignition and moisture
Packing unit 25kg Poly Propylene bag & 500kg Poly Propylene bag,
Any size customers want.
Application Material for anti-corrosion paint used in container,
Ship and steel structures .Electronic materials
Goods characteristics White Powder.
Soluble in acid or alkali solution ,insoluble in water or alcohol.
CHEMICAL ANALYSIS
TEST ITEM |
UNIT |
REQUIREMENT |
Whiteness |
% |
80-90 |
Al2O3 |
wt.% |
13-20 |
P2O5 |
40-46 |
|
SiO2
|
wt.% |
8-12 |
ZnO |
wt.% |
20±5 |
Moisture |
wt.% |
Max1.0 |
Oil absorption |
ml/100g |
25-35 |
The PH Value |
- |
5.5-7.0 |
Residue on sieve (325mesh) |
wt.% |
Max0.5 |
Mean Particle Size |
μm |
13/44 |
Modified aluminum tripolyphosphate (EPMC)
Modified Aluminum Tripolyphosphate (Epmc), Aluminium Phospate,Aluminum Dihydrogen Phosphate Powder
shijiazhuang city xinsheng chemical co.,ltd , http://www.xsphos.com