Tetraethyl silicate(TEOS) bụ kemịkalụ kemịkalụ nke a na-ejikarị eme ihe na ụlọ ọrụ dị iche iche. Ịghọta mmeghachi omume ya dị oke mkpa maka ịkwalite ngwa ya na njikọ kemịkalụ na karịa. Na blọọgụ a, anyị ga-enyocha njirimara pụrụ iche nke tetraethyl silicate, mmeghachi omume ya, yana otu ọ nwere ike isi rụọ ọrụ dị mkpa na ọrụ gị.

Kedu ihe bụ Tetraethyl Silicate?

Tetraethyl silicate bụ ogige organosilicon nke a na-ejikarị dị ka ihe mmalite na njikọ nke ihe ndị sitere na silica. Usoro ihe omimi ya, nke nwere silicon jikọtara na otu ethoxy, na-eme ka ọ na-emeghachi omume nke ukwuu n'ọnọdụ ụfọdụ. Mmeghachi omume a na-akwado ike ya sara mbara na mkpuchi, adhesives, sealants, na usoro nrụpụta kemịkalụ.

Isi ihe na-emetụta mmeghachi omume nke Tetraethyl Silicate

Mmeghachi omume nke tetraethyl silicate dabere na ihe dị iche iche, nke ọ bụla nwere ike imetụta omume ya na mmeghachi omume kemịkal:

1.Hydrolysis na condensation

TEOS na-eme ngwa ngwa na mmiri na usoro hydrolysis, na-agbaji otu ethoxy ya iji mepụta otu silanol. A na-esochi usoro a na condensation, ebe otu silanol na-ejikọta iji mepụta netwọk silica. Mmeghachi omume ndị a bụ isi maka imepụta ihe sol-gel na ogige ndị ọzọ sitere na silica.

2.Nhọrọ nke mkpali

Ndị na-emepụta ihe na-arụ ọrụ dị mkpa n'ịchịkwa ọnụ ọgụgụ na nsonaazụ nke mmeghachi omume TEOS. Acidic catalysts na-eme ngwa ngwa hydrolysis, ebe isi ihe na-akwado condensation, na-enye ohere maka nhazi ahaziri dabere na ihe achọrọ.

3.Ọnọdụ mmeghachi omume

Okpomọkụ, pH, na ọnụnọ nke ihe mgbaze nwere ike imetụta mmeghachi omume tetraethyl silicate n'ụzọ dị egwu. Dịka ọmụmaatụ, okpomọkụ dị elu na-abawanye ọnụego mmeghachi omume, ebe ihe mgbaze nke ahọpụtara nke ọma nwere ike ịkwalite otu ngwaahịa.

4.Ntinye uche na ịgwakọta

Ntinye uche nke TEOS na usoro ngwakọta na-emetụtakwa mmeghachi omume ya. Mgbakwunye mmiri nke nta nke nta ma ọ bụ ngwakọta a na-achịkwa na-eme ka a mata hydrolysis otu ma na-egbochi gelation akaghi aka, nke nwere ike imebi àgwà ngwaahịa ikpeazụ.

Ngwa na-eji Tetraethyl Silicate Reactivity

Ịghọta mmeghachi omume nke tetraethyl silicate na-emepe ụzọ maka ọtụtụ ngwa:

•Mkpuchi Silica: TEOS na-eje ozi dị ka ihe mmalite n'ịmepụta mkpuchi silica na-adịgide adịgide, na-eguzogide okpomọkụ maka elu dị iche iche.

•Adhesives na Sealants: Ikike ya ịmepụta njikọ siri ike nke silica na-eme ka ọ dị mma maka nrapado dị elu.

•Ngwakọta kemịkalụ: A na-ejikwa mmeghachi omume nke tetraethyl silicate na-emepụta ihe na-emepụta ihe na ihe ndị dị elu maka iji ụlọ ọrụ mmepụta ihe.

•Nrụpụta iko: TEOS na-enye aka n'ịmepụta enyo ndị ọkachamara na-enwe nkwalite ngwa anya na ihe ọkụ.

Ndụmọdụ maka ijikwa Tetraethyl Silicate nke ọma

Mmeghachi omume dị elu nke tetraethyl silicate chọrọ njikwa kwesịrị ekwesị iji hụ na nchekwa na idobe iguzosi ike n'ezi ihe ngwaahịa:

• Chekwaa TEOS n'ime arịa akpọchiri akpọchi ka ọ gbochie mmeghachi omume na-achọghị na mmiri dị n'ikuku.

• Jiri akụrụngwa nchedo onwe onye kwesịrị ekwesị (PPE) mgbe ya na TEOS na-arụ ọrụ iji zere mgbakasị anụ ahụ na anya.

• Na-arụ ọrụ na mpaghara ikuku nke ọma ma ọ bụ jiri mkpuchi anwụrụ ọkụ belata ikpughe na vapors.

Mmechi

Nkereactivity nke tetraethyl silicatebụ isi ihe na-eji ya eme ihe n'ofe ụlọ ọrụ. Site n'ịghọta akụrụngwa ya na otu esi ejikwa mmeghachi omume ya, ị nwere ike imeghe ikike ya zuru oke maka ọrụ gị. Ma ị na-emepụta ihe ndị sitere na silica ma ọ bụ na-enyocha njikọ kemịkalụ dị elu, TEOS bụ ngwá ọrụ dị ike na ngwa agha gị.

Ị dịla njikere inyochakwuo uru na ngwa nke tetraethyl silicate? KpọtụrụFortune Chemicaltaa maka nghọta ndị ọkachamara na azịza ahaziri ahazi iji gboo mkpa gị.