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Chemistry of Yanpai filter products
| Properies |
Polyester Fiber |
Polyproylene Fiber |
Polyamide Fiber |
Polyvinyl Alcohol Fiber |
| Acid-resisting |
Strong |
All Right |
Weak |
Non-acid resisting soda |
| Alkalinity-resisting |
Weakness-resisting |
Strong |
All Right |
Weakness-resisting |
| Corrosion-resisting |
All Right |
Bad |
Bad |
All Right |
| Electrification |
Bad |
All Right |
Good |
Normal |
| Splitting and elongation |
30%-40% |
Better than polyester |
18¢J -45¢J |
15%-25% |
| Return Ability |
Very Good |
A little better than Polyester |
Very Good |
Weak |
Abrasion
Resistance |
Very Good |
Good |
Very Good |
Good |
| Heat-resisting |
120¢J |
90¢J |
130¢J a little Contraction |
100¢J a little Contraction |
| Softening-resisting |
230¢J-240¢J |
140¢J-150¢J |
180¢J |
200¢J |
| Melting-point |
255¢J-265¢J |
165¢J-170¢J |
210¢J-215¢J |
220¢J |
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