Kedu ihe bụ ọnụọgụ ọnụọgụ n'etiti ntinye akwụkwọ ntanye gel nke ihe ntanye na-emetụta nrụgide silicone na ike jikọtara ọnụ nke oyi akwa nrapado?

I. Nkọwa na usoro nha nke ndị na-egosi

1. Gel ntakiri:

   Iberibe jel na-ezo aka na oke pasentị nke netwọọdụ ejikọtara ọnụ na nrapado na-enwe mmetụta nke silicone nke kpuchie na ya. Teflon teflon dị elu nke na-adịghị edozi ya na ihe mgbaze dị mma (dị ka toluene). Usoro nha na-agụnye itinye ihe nkiri nrapado dị ọcha na nzacha nzacha, wepụ ya na ihe nchacha Soxhlet maka awa 24, wee kpochaa ihe fọdụrụ na-enweghị ike ime ka ọ dị arọ mgbe niile tupu ịgbakọ.

2. Ike njikọta:

   Na teepu Teflon, a na-eji ike na-ejikọta ike na-ejide ike dị elu (okpomọkụ adhesion ọdịda okpomọkụ ma ọ bụ oge ijide oge). A na-eme ule a na 180 Celsius C n'okpuru ibu 1 kg, na-edekọ oge ruo mgbe oyi akwa nrapado na-ada ma ọ bụ daa. Uru a na-egosipụta kpọmkwem ike oyi akwa nrapado nwere iguzogide mgbaba na nkewa.

II. Nkwekọrịta ọnụọgụ n'etiti Gel Fraction na ike jikọtara ọnụ

1. N'okpuru ebe dị oke egwu (nkeji gel <60%):

   Sistemu emebeghị ka netwọk na-akpachapụ anya; oyi akwa nrapado na-anọgide na ọnọdụ viscous-erugharị, na-ejide ike na-abịaru nso efu na enweghị ike imekọ ihe ọnụ.

2. Oke bara uru (60%-85%):

   E wezụga isi ihe dị oke egwu, njupụta nrịba dị irè na-abawanye nke ọma site na mpempe gel, na ike na-ejikọta ọnụ na-eto eto ma ọ bụ na-agbaso iwu dị elu. Ịba ụba nke gel site na 60% ruo 70% nwere ike iwelie oge okpomọkụ dị elu site na nkeji ruo awa; site na 70% ruo 80%, ike njide nwere ike ịbawanye site na 3 ruo 10 ọzọ. Ụdị ọdịda ahụ ji nke nta nke nta na-aga site na nnukwu ndakọrịta ọdịda ruo ọdịda agwakọta.

3. Oke ngafe dị elu (> 85%):

   Mmụba nke ike njikọta na-ebelata. Na-ebuli akụkụ gel site na 85% ruo 95% na-abawanye ijide oge site na naanị 20%-50%, mana tack (adhesion mbụ) na-adaba nke ọma n'ihi mmachi agbụ molekụla. Mgbe mpempe akwụkwọ gel gafere 95%, oyi akwa nrapado na-abịaru nso na steeti elastomer dị ọcha, na ihe nrapado nwere mmetụta nrụgide na-efunahụ ya.

III. Ihe Nlereanya Semi-Empirical na Data Anya

Dị ka ndị Jiangsu Teflon na-emepụta akwa na-ekpo ọkụ na-achịkọta, enwere ike ịkọwa mmekọrịta dị n'etiti oge njide shear (t_shear) na gel fraction (g) dị ka:

lg(t_shear) = A + B · g (ya na B ihe dị ka 0.1–0.2), na-egosi ịdabere n'ọnụ. Ụkpụrụ nke A na B na-adabere na nha resin MQ, ọkpụrụkpụ oyi akwa nrapado, na okpomọkụ ule.

Data kwekọrọ ekwekọ (180 Celsius C static shear, nke a na-ahazi na oge njide nke 1 na 65% jel):

| Nkeji jel | Oge njide ikwu | Ụdị ọdịda |

|-------------|---------------------------|

| 55% | <0.1 | 100% nkwekọ ọnụ |

| 65% | 1 | ~80% ndakọrịta ọnụ |

| 75% | 8–15 | Ngwakọta ọdịda |

| 85% | 50–100 | Obere ihe fọdụrụ |

| 92% | 150–200 (nke dị nso saturation) | Ọdịiche ihu dị ọcha |

 

O doro anya na na 60%-90% nso, pasent 5 ọ bụla na-abawanye na njedebe gel nwere ike iduga n'ọtụtụ okpukpu na ike na-ejikọta ọnụ nke okpomọkụ.

IV. Usoro njikwa na nrụpụta Teflon teepu

1. Ogologo irighiri irighiri ihe dị iche iche:

   Maka ebumnuche izugbe na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ site na Jiangsu Teflon ndị na-emepụta akwa na-ekpo ọkụ na-ekpo ọkụ, akụkụ gel a na-atụ aro bụ 75%-85%, na-edozi tack na cohesion. Maka eriri ihe mgbochi na-ekpo ọkụ na-ekpo ọkụ (n'okpuru ntinye ogologo oge na 200-260 Celsius C), akụkụ nke gel ga-eru 85%-93% iji gbochie nrapado nrapado kpatara site na nchikota ọnụ nke oyi akwa nrapado.

2. Mmanya ndakọrịta chọrọ:

   The PTFE elu nke Teflon elu-okpomọkụ teepu nwere oké ala elu ume; ya mere, ike na-ejikọta ọnụ nke oyi akwa nrapado ga-adị elu karịa ike nkwụsị nke interfacial; ma ọ bụghị ya, ọdịda nkwonkwo ga-eme n'okpuru nrụgide. Ọ bụrụ na akụkụ jel gafere 93%, oyi akwa nrapado na-esi ike, na-ebelata wetting na conformability na mkpụrụ PTFE, nke nwere ike iduga na-ebuli elu. Na mmepụta, ọ dị mkpa ijikwa n'ụzọ ziri ezi crosslinking okpomọkụ, oge, na catalyst usoro onunu ogwu iji kpọchie irighiri gel n'ime ebe ebumnuche, na-enweta mgbanwe a pụrụ ịdabere na ya site na nkwụsị ọnụ na ọdịda ihu.

Ozi n'elu nyere site Ụgwọ nke ụlọ ọrụ Jiangsu Okai New Material Technology Co., Ltd.

Ọ bụrụ na ị ga-achọ ịmatakwu banyere nkọwa zuru ezu, ihe ngosi ngwa, na nhọrọ nhazi maka ngwaahịa anyị zuru oke-gụnyere akwa akwa Teflon dị elu, teepu okpomọkụ nke Teflon, eriri eriri teflon na-ekpo ọkụ, eriri na-enweghị ihe nkedo na-enweghị ihe mgbochi maka ndị na-emepụta ihe, otu akụkụ, PTFE dị elu. akwa fiberglass, na ndị ọzọ-biko nweere onwe gị ịkpọtụrụ anyị site na ndị a:

Kpọọ hotline ọrụ anyị:

- Maazị Guo: 18944819998

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