gịnị kpatara silane dị ize ndụ?
1. Gini mere silane ji egbu egbu?
Nwere ike ịdị ize ndụ site na iku ume, iri nri ma ọ bụ nnabata site na akpụkpọ ahụ. Karịsịa na-ere ọkụ, zere ikpo ọkụ, ọkụ na ọkụ mepere emepe. Ụlụlụ ya na-agbanwe agbanwe na-akpasu anya, akpụkpọ ahụ, akpụkpọ anụ mucous na akụkụ iku ume elu. Yiri gloves dabara adaba na enyo nchekwa ma na-eji ya mgbe niile na mkpuchi anwụrụ ọkụ.
2. Gịnị bụ mmetụta ndị silane?
①Anya anya: Silane nwere ike kpasuo anya iwe. Nbibi nke silane na-emepụta silica amorphous. Mmetụ anya na ụmụ irighiri silica amorphous nwere ike ịkpasu iwe.
Inhalation: 1. Inhalation nke elu ịta nke silane nwere ike ime ka isi ọwụwa, ọgbụgbọ, dizziness na ịkpali akụkụ okuku ume elu.
② Silane nwere ike kpasuo usoro iku ume na akpụkpọ anụ mucous. Ikuku silane dị ukwuu nwere ike ịkpata oyi baa na ọrịa akụrụ n'ihi ọnụnọ nke silica kristal.
③ Ikpughe na gas na-etinye uche dị elu nwekwara ike ime ka ọkụ na-ekpo ọkụ n'ihi ọkụ ọkụ n'onwe ya.
Ingestion: O yighị ka iri nri ga-abụ ụzọ ikpughe na silanes.
Kọntaktị akpụkpọ ahụ: Silane na-akpasu iwe na akpụkpọ ahụ. Nbibi nke silane na-emepụta silica amorphous. Mmekọahụ akpụkpọ ahụ na ụmụ irighiri silica amorphous nwere ike ịkpasu iwe.
3. Kedu ihe a na-eji silanes eme ihe?
A) Onye nnọchi anya njikọ:
A na-eji alkoxysilane Organofunctional iji jikọta polymers organic na ihe inorganic, ihe a na-ahụkarị nke ngwa a bụ nkwado. Ọmụmaatụ: eriri iko na ihe ndị na-ejuputa mineral agwakọtara n'ime rọba na rọba. A na-eji ha na thermoset na usoro thermoplastic. A na-eji ihe ndị na-emepụta ihe dị ka: silica, talc, wollastonite, ụrọ na ihe ndị ọzọ na-edozi ya na silanes na usoro ngwakọta ma ọ bụ tinye ya ozugbo n'oge usoro nhazi.
Site n'iji silanes organofunctional na hydrophilic, ihe na-eme ihe na-abụghị organic, ihe ndị dị n'ime ala na-aghọ mmeghachi omume na lipophilic. Ngwa maka fiberglass gụnyere ahụ ụgbọ ala, ụgbọ mmiri, ebe ịsa ahụ, bọọdụ sekit e biri ebi, antenna TV satịlaịtị, ọkpọkọ plastik na arịa, na ndị ọzọ.
Sistemụ jupụtara na mineral gụnyere polypropylene gbasiri ike, carbon ojii jupụtara na-akpụzi ogige, wiil ndị na-egweri silicon carbide, pellet jupụtara polymer concrete, resins nkedo jupụtara na ájá na waya EPDM jupụtara na ụrọ na eriri, nke a na-ejikwa na taya ụgbọ ala, akpụkpọ ụkwụ akpụkpọ ụkwụ, igwe Clay-na silica jupụtara rọba maka ihe na ngwa ndị ọzọ.
B) Adhesion akwalite
Ndị na-ahụ maka njikọta nke Silane bụ ndị na-akwalite adhesion mgbe ejikọtara ndị na-akwado ya na primers maka agba, ink, mkpuchi, nrapado na akara. Mgbe ejiri ya dị ka mgbakwunye mgbakwunye, silanes kwesịrị ịkwaga na interface dị n'etiti njikọ na ihe a na-emeso ka ọ bara uru. Mgbe ejiri ya dị ka primer, a na-eji ihe ndị na-ejikọta silane na ihe ndị na-adịghị ahụkebe tupu ejikọtara ngwaahịa ahụ.
N'okwu a: silane nọ n'ọnọdụ dị mma na-eme ihe dị ka onye na-eme ka adhesion (na mpaghara interface) Site n'iji ya eme ihe n'ụzọ ziri ezi nke ndị na-emepụta ihe na-ejikọta silane, ọbụna n'okpuru ọnọdụ gburugburu ebe obibi siri ike, inks na-ekpuchi, mkpuchi, adhesives Ma ọ bụ ihe mkpuchi nwere ike idobe njikọ ahụ.
C) mmiri sọlfọ, na-ekesa
Siloxanes nwere hydrophobic organic otu jikọtara na silicon atọm nwere ike inye otu hydrophobic agwa dị ka sub-hydrophilic inorganic na-ebupụta, na-eji ha dị ka na-adịgide adịgide hydrophobic agents na-ewu, akwa na decking ngwa. A na-ejikwa ha na hydrophobic powders inorganic powders, na-eme ka ha na-agba ọsọ ma dị mfe ịgbasa na polymers organic na mmiri mmiri.
D) Onye na-emekọrịta ihe
Organofunctional alkoxysilanes nwere ike imeghachi omume na organic polymers iji tinye otu tri-alkoxyalkyl n'ime ọkpụkpụ azụ polymer. Silane nwere ike meghachi omume na mmiri iji gafee silane iji mepụta usoro siloxane nwere akụkụ atọ kwụsiri ike. Enwere ike iji usoro a na-agafe plastik, polyethylene, na resins organic ndị ọzọ, dị ka acrylics na polyurethanes, iji nye ihe na-adịgide adịgide, agba mmiri na-eguzogide ọgwụ, mkpuchi, na adhesives.
A na-eji PSI-520 silane coupling agent maka ọgwụgwọ nkesa organic nke MH/AH, kaolin, talcum powder and other fillers, ma dịkwa mma maka ọgwụgwọ MH/AH organic maka ihe ndị na-enweghị halogen. Maka ọgwụgwọ nke inorganic ntụ ntụ ntụ, hydrophobicity ya ruru 98%, na mmiri kọntaktị akụkụ n'elu organic inorganic ntụ ntụ bụ ≥110º. Ọ nwere ike gbasasịa ntụ ntụ inorganic na polymers organic dị ka resin, rọba na rọba. Atụmatụ: Meziwanye ihe ndozi arụmọrụ mgbasa; mụbaa uru index oxygen na-egbochi (LOI); mụbaa hydrophobicity nke ndochi, ma na-emeziwanye ihe eletriki eletrik (dielectric constant tan, nnukwu eletrik ρD), mgbe ị zutere mmiri; mụbaa ọnụ ọgụgụ nke ndochi, ma n'otu oge ahụ nwee ike dị elu dị elu ma dị elu na-agbatị ike na nkwụsịtụ; meziwanye nguzogide okpomọkụ na oke okpomọkụ na-akpụ akpụ; melite chemical corrosion iguzogide; mmetụta dị elu na-eguzogide; melite usoro kwụsie ike na arụpụtaghị ihe nke extrusion Ịgwakọta.
4. Kedu ihe nchekwa nchekwa maka silane gas?
Ekwela ka okpomọkụ sistemu daa n'okpuru -170°F (-112°C) ma ọ bụ enwere ike ịdọrọ ikuku ka ọ bụrụ ngwakọta mgbawa.
Ekwela ka silane bata na ha nwere nnukwu metal halides ma ọ bụ halogens, silane na-emeghachi omume n'ike na ha. Ekwesịrị iji nlezianya kpochapụ usoro ahụ ka ọ ghara igbochi ihe ndị na-emepụta ihe, halogens ma ọ bụ hydrocarbons chlorinated ndị ọzọ dị n'ime ya.
Tinyegharịa usoro ahụ n'ụzọ zuru ezu maka ule ntanye na-arụ ọrụ ugboro abụọ ma ọ bụ atọ, ọkachamma helium. Tụkwasị na nke ahụ, ekwesịrị ịmepụta usoro nchọpụta nkwụsị nke oge niile ma tinye ya n'ọrụ.
Mgbe enyochachara usoro ahụ maka ntanye ma ọ bụ meghere maka ihe ndị ọzọ, ikuku dị n'ime usoro ahụ kwesịrị ịsacha site na ikpochapụ ma ọ bụ nchacha gas. Tupu imepe usoro ọ bụla nwere silane, a ga-ehichapụrịrị usoro ahụ kpamkpam na gas inert. Ọ bụrụ na akụkụ ọ bụla nke sistemụ ahụ nwere oghere nwụrụ anwụ ma ọ bụ ebe silane nwere ike ịdịgide, a ga-ekpochapụ ya ma kesaa ya.
Ekwesịrị ịfesa Silane n'ebe a na-ewepụ ya, ọkacha mma ọkụ. Ọbụna obere mkpokọta silane dị ize ndụ ma e kwesịghị ikpughe ikuku. A nwekwara ike ịpụpụ silanes mgbe ejiri gas na-adịghị agwụ agwụ mee ka ha ghara ire ọkụ.
Ekwesịrị ịchekwa ma jiri gas arụrụ arụ ọrụ dịka ihe ndị American Compressed Gas Association chọrọ. Na mpaghara enwere ike ịnwe ụkpụrụ akụrụngwa pụrụ iche maka nchekwa na ojiji nke gas chọrọ.
5. Kedu ihe dị iche n'etiti silicone na silane?
Ihe ndị sitere na silicon na-eme ka ngwa ndị na-achọsi ike karịa ihe ndị sitere na organic, sitere na ndị na-arụ ọrụ na oke okpomọkụ ruo ogologo oge na ọnọdụ gburugburu ebe obibi siri ike. A na-eji ha dị ka ihe mgbakwunye iji nye ọrụ elu, mmiri na-eguzogide mmiri, na ahụmahụ mmetụta uche magburu onwe ya, na-eme ka nkà na ụzụ silicone bụrụ isi ihe na-eme ka ngwa dị iche iche na-eme ka ndụ anyị dịkwuo mma.
