The acid and alkali resistance of polyester cloth, does polyester non woven fabric have high tempera

Polyester cloth. The acid resistance is very good, and the alkali resistance is poor.

Polyester is very stable to organic acids, in hydrochloric acid solution and dilute sulfuric acid.

After internal immersion, there is no loss of strength, but it cannot resist concentrated nitric acid.

or the prolonged action of concentrated sulfuric acid.

Ester groups on polyester molecules.

It is easy to hydrolyze by alkali action, therefore, the fiber can be destroyed by the action with concentrated alkali at room temperature and dilute alkali at high temperature, and it is relatively stable to dilute alkali or weak alkali at low temperature.

Polyester cloth has good strength and abrasion resistance, strong acid resistance and good alkali resistance.

Characteristics of polyester: 1) High strength, impact strength is 4 times higher than nylon and 20 times higher than viscose fiber. 2) Good elasticity.

The elasticity is close to that of wool and when elongated by 5% to 6%, it can be almost completely recovered. The wrinkle resistance exceeds that of other fibers, that is, the fabric does not wrinkle and has good dimensional stability. The elasticity is 2 to 3 times higher than that of nylon.

3) Good heat resistance. 4) Good water absorption. 5) Good wear resistance.

The abrasion resistance is second only to nylon, which has the best abrasion resistance, and is better than other natural fibers and synthetic fibers. 6) Good lightfastness. Lightfastness is second only to acrylic.

7) Corrosion resistance. Resistant to bleach, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. It is resistant to dilute alkali and is not afraid of mildew, but hot alkali can decompose it.

8) Poor staining.

Generally speaking, polyester non-woven fabrics can not, and the melting point of conventional polypropylene non-woven fabrics is 160 170; The non-woven fabric of silk is about 260. However, there is a material that is made of acrylic, viscose fiber or asphalt fiber by needle punching, and then graphitized after oxidation and carbonization treatment, and its high temperature resistance can reach more than 3000.

Theoretically, PET non-woven fabrics are not high-temperature resistant, although the melting point of PET can reach more than 200 degrees, but it can be stretched and deformed when it is stressed more than 80 degrees. PET non-woven fabrics are porous and can permeate and absorb water, but the water absorption capacity is much lower than that of cotton.

Polyester non-woven fabric has high temperature resistance, but there is still a limit, the temperature can not be too high before the Hu Pai, we should all operate the correct way to use polyester non-woven fabric.

Generally speaking, polyester non-woven fabrics can not, and the melting point of conventional polypropylene non-woven fabrics is 160 170; The silk non-woven fabric is about 260 for the sedan chair. However, there is a material that is made of acrylic, viscose fiber or asphalt fiber by needle punching, oxidation treatment and carbonization treatment, and then graphitization treatment of carbon felt, which can withstand high temperature of more than 3000.

In theory, PET non-woven fabric is not high temperature resistant, although the melting point of PET can reach more than 200 degrees, but more than 80 degrees can be stretched and deformed without chain stress. PET non-woven fabric is porous and can permeate and absorb water, but the water absorption capacity is much lower than that of cotton.

Polyester non-woven fabric has high temperature resistance, but there is still a limit, the temperature can not be too high, we should all operate the correct way to use polyester non-woven fabric.

Anti-acid and alkali fabric refers to the fact that the fabric has the characteristics of acid and alkali solution, non-adhesion, long acid resistance and high penetration time, high acid pressure resistance, high fabric strength, and good air permeability after the anti-acid and alkali process, and has a good protection function for employees.

Polyester anti-acid and alkali refers to the fabric generated after the polyester fabric is processed through the anti-acid and alkali process (Xinxiang Yulong Textile).