Kedu ihe bụ ngwa silane?

Akụkọ

A) Onye nnọchi anya njikọ:
Organic arụ ọrụalkoxysilaneA na-ejikọta polymers organic na ihe inorganic, na njirimara nke ngwa a bụ nkwado. Dị ka ihe atụ, enyo fiber na mineral fillers gwakọtara na rọba na rọba. A na-eji ha eme ihe na usoro thermosetting na thermoplastic. A na-agbakwunye ihe ndị na-emepụta mineral, dị ka carbon ojii na-acha ọcha, talc, Wollastonite, ụrọ na ihe ndị ọzọ, na usoro ịgwakọta ma ọ bụ tupu ejiri ya.silanema ọ bụ na usoro ihe mejupụtara.
Site n'iji silane na-arụ ọrụ organic na hydrophilic, ndị na-abụghị organic mmeghachi omume fillers, ihe ịnweta elu na-aghọ mmeghachi omume na lipophilic. Ngwa nke eriri iko gụnyere ahụ ụgbọ ala, ụgbọ mmiri, ịsa ahụ, bọọdụ sekit e biri ebi, antenna Television satịlaịtị, tube plastik na akpa, na ndị ọzọ.

silane
Sistemụ na-ejuputa mineral gụnyere polypropylene siri ike, carbon ojii jupụtara na plastik a kpụrụ akpụ, silicon carbide na-egweri wiil, granular jupụtara polymer ihe, ájá jupụtara resin, na ụrọ jupụtara EPDM wires na cables, yana ụrọ jupụtara na ọcha carbon ojii jupụtara roba maka ụgbọ ala. taya, ọbụ ụkwụ akpụkpọ ụkwụ, ihe eji arụ ọrụ, na ngwa ndị ọzọ.
B) Onye na-akwalite nrapado
Mgbe ejiri ya dị ka nrapado na primer maka ijikọ agba, ink, mkpuchi, nrapado, na ihe mkpuchi.silanendị na-ejikọta ọnụ bụ ndị na-akwalite adhesion. Mgbe ejiri ya dị ka ihe mgbakwunye n'ozuzu ya, silane kwesịrị ịkwaga na interface n'etiti nrapado na ihe a na-agwọ ka ọ bara uru. Mgbe ejiri ya dị ka primer, ọ dị mkpa ka ejiri ihe ndị na-ejikọta silane mee ihe maka ihe ndị na-emepụta ihe tupu ejikọta ngwaahịa ahụ.
N'okwu a, silane nọ n'ọnọdụ dị mma iji mee ihe dị ka nkwalite njikọ (na mpaghara interface). Site n'iji ihe eji ejikọta silane n'ụzọ ziri ezi, ọbụlagodi na ọnọdụ gburugburu ebe obibi siri ike, ink, agba, nrapado, ma ọ bụ ihe mkpuchi nwere ike ịnọgide na-enwe nrapado.
C) Mmiri sọlfọ, na-ekesa
Siloxanes nwere hydrophobic organic otu jikọtara na silicon atom nwere ike inye hydrophilic inorganic elu elu nwere otu hydrophobic e ji mara, na-eji dị ka hydrophobic agents na-adịte aka na ụlọ, àkwà mmiri, na ngwa ngwa. A na-ejikwa ha na hydrophobic inorganic powders iji mee ka ha na-asọba n'efu ma gbasaa ngwa ngwa na polymers organic na mmiri mmiri.
D) Onye na-ahụ maka ịgbagharị
Organic arụ ọrụ alkoxysilane nwere ike imeghachi omume na organic polymers, na-ejikọta trialkoxyalkane otu na isi yinye nke polymer. Silane nwere ike meghachi omume site na uzuoku mmiri ka ọ gafere silane, na-etolite nrụnye siloxane nwere akụkụ atọ kwụsiri ike. Enwere ike iji usoro a na-agafe plastik, polyethylene, na resins organic ndị ọzọ, dị ka resin acrylic na polyurethane rubber, iji mee ka ịdịte aka na mkpuchi mmiri nke agba, mkpuchi, na adhesives.
A na-eji PSI-520 silane njikọ njikọ maka ọgwụgwọ organic dispersion nke fillers dị ka MH / AH, kaolin, talc ntụ ntụ, wdg Ọ dịkwa mma maka ọgwụgwọ MH / AH organic na ngwa na ihe halogen na-enweghị eriri. Ọgwụgwọ nke inorganic ntụ ntụ ihe nwere hydrophobicity nke 98%, na mmiri kọntaktị akụkụ n'elu organic inorganic ntụ ntụ bụ ≥ 110 º. The inorganic ntụ ntụ nwere ike uniformly chụsasịa na organic polymers dị ka resin, plastic, na roba, na e ji mara mma mgbasa ọrụ nke fillers; Mmụba uru nke ihe na-egbochi ikuku oxygen (LOI); Ịbawanye hydrophobicity nke ihe nkpuchi nwekwara ike imeziwanye ihe eletriki eletrik (dielectric constant tan, nnukwu ọkụ eletrik ρ D) Mgbe o zutere mmiri; Na-abawanye ụba nke ndochi agbakwunyere, ebe ị na-enwekwa ike ike dị elu na elongation na nkwụsịtụ; Melite nguzogide okpomọkụ ma melite arụmọrụ


Oge nzipu: Jul-18-2023