Njirimara nke ihe silicone

Njirimara nke ihe silicone

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1. Viscosity
Nkọwa nke okwu sayensị na nkà na ụzụ: Njirimara volumetric nke mmiri mmiri, pseudo-liquid ma ọ bụ pseudo siri ike okwu megide eruba, ya bụ, n'ime esemokwu ma ọ bụ n'ime ime mgbochi nke eruba n'etiti ụmụ irighiri mgbe ọ na-asọpụta n'okpuru omume nke mpụga ike.N'okpuru ọnọdụ nkịtị, viscosity dabara na isi ike.

2. Isi ike
A na-akpọ ike nke ihe nwere ike iguzogide ihe siri ike nke etinyere n'elu ya.rọba silicone nwere oke ike siri ike nke Shore nke 10 ruo 80, nke na-enye ndị na-emepụta nnwere onwe zuru oke ịhọrọ ike siri ike achọrọ iji rụọ ọrụ nke ọma.Enwere ike nweta ụkpụrụ isi ike dị n'etiti dị iche iche site na ịgwakọta ihe ndị na-emepụta polymer, fillers na mgbakwunye na nha dị iche iche.N'otu aka ahụ, oge na okpomọkụ nke ikpo ọkụ na ọgwụgwọ nwekwara ike gbanwee ike na-enweghị ibibi àgwà anụ ahụ ndị ọzọ.

3. Ike tensile
Ike ntakiri na-ezo aka na ike a chọrọ na mpaghara nsoro ọ bụla iji mee ka mpempe ihe nlele rọba dọka.Ike tensile nke rọba silicone siri ike na-ekpo ọkụ dị n'etiti 4.0-12.5MPa.Ike ike nke roba fluorosilicone dị n'etiti 8.7-12.1MPa.Ike ike nke rọba silicone mmiri mmiri dị na nso nke 3.6-11.0MPa.

Anọ, ike akwa
Mgbochi nke na-egbochi mgbasawanye nke ịkpụ ma ọ bụ akara mgbe a na-etinye ike na sample ịkpụ.Ọbụna ma ọ bụrụ na ọ na-enịm n'okpuru kemgwucha elu torsional nchegbu mgbe ịcha, na thermally vulcanized siri ike silicone roba ike adọwa.Oke ike anya mmiri nke rọba silicone siri ike na-ekpo ọkụ dị n'etiti 9-55 kN/m.Oke ike anya mmiri nke roba fluorosilicon dị n'etiti 17.5-46.4 kN/m.Ike ndọka mmiri nke rọba silicone sitere na 11.5-52 kN/m.

5. elongation
Na-ezokarị aka na "Eltimate Break Elongation" ma ọ bụ mmụba pasent n'ogologo mbụ mgbe nlele ahụ gbajiri.Thermally vulcanized siri ike silicone roba n'ozuzu nwere elongation na nso nke 90 ka 1120%.N'ozuzu elongation nke fluorosilicone roba bụ n'etiti 159 na 699%.N'ozuzu elongation nke mmiri mmiri silicone roba bụ n'etiti 220 na 900%.Ụzọ nhazi dị iche iche na nhọrọ nke hardener nwere ike ịgbanwe elongation ya nke ukwuu.Na elongation nke silicone roba nwere otutu ihe jikọrọ ya na okpomọkụ.

6, oge ọrụ
A na-agbakọ oge ọrụ site n'oge agbakwunyere colloid na onye na-eme ihe ike.Enweghị oke zuru oke n'etiti oge ọrụ a na oge mgbapụ na-esote.Colloid enwetala mmeghachi omume vulcanization site na oge agbakwunyere ihe na-eme ka ọ pụta ìhè.Oge ọrụ a pụtara na mmeghachi omume vulcanization nke nkeji iri atọ anaghị emetụta ogo ngwaahịa emechara.Ya mere, ka a na-echekwa oge na usoro ọrụ ngwaahịa, otú ahụ ka ọ bara uru karịa ngwaahịa emechara.

7, oge ọgwụgwọ
Ụfọdụ ebe ga-asị na ọ bụ oge ọgwụgwọ.N'ikwu ya n'ụzọ ọzọ, mmeghachi omume vulcanization nke silica gel na-agwụcha mgbe ogologo oge gasịrị.Nke a na-ejedebe na njedebe, nke pụtara na ngwaahịa ahụ adịlarị, ma n'eziokwu, a ka nwere obere akụkụ nke mmeghachi omume ọgwụgwọ nke na-akwụsịbeghị.Ya mere, ngwaahịa ndị e ji silicone rọba, dị ka ihe na-emepụta silicone, na-ewekarị oge tupu etinye ya.
Silica gel (Silica gel; Silica) utu aha: Silica gel bụ ihe na-arụsi ọrụ ike nke ukwuu, nke bụ ihe amorphous.Usoro ọgwụ ya bụ mSiO2 · nH2O;ọ naghị emeghachi omume na ihe ọ bụla ma e wezụga alkali siri ike na hydrofluoric acid.Ọ na-esighi ike na mmiri na ihe mgbaze ọ bụla, nke na-adịghị egbu egbu, enweghị ụtọ, na kemịkalụ kwụsiri ike.Ụdị silica gel dị iche iche na-etolite ụdị microporous dị iche iche n'ihi ụzọ mmepụta ha dị iche iche.Ngwakọta kemịkalụ na nhazi anụ ahụ nke silica gel na-ekpebi na ọ nwere ọtụtụ ihe ndị ọzọ yiri ya nke siri ike dochie anya: arụmọrụ adsorption dị elu, nkwụsi ike dị mma, nkwụsi ike kemịkalụ siri ike, na ike nrụpụta dị elu.Dị ka oke nke pore size, silica gel kewara n'ime: macroporous silica gel, keadighi rarii pore silica gel, B-ụdị silica gel, fine pore silica gel, wdg.

Ọnụ ego nke ihe silicone dị ugbu a na-ejighị n'aka, na-ebili kwa ụbọchị, ọ na-esiri anyị ike ikpebi ọnụahịa.Anyị nwere ike ime naanịsilicone ebuugbua.


Oge nzipu: Sep-27-2021