Qhov sib txawv ntawm Neutral Silicone Sealant thiab Medium Silicone Structural Adhesive

I. Qhov sib txawv ntawm Cov Txheej Txheem thiab Kho Tshuab
1. Neutral Silicone Sealant:

- Cov khoom tseem ceeb: hydroxyl-terminated polydimethylsiloxane. Nws kho los ntawm dealcoholization los ntawm absorbing noo noo los ntawm huab cua, tsim ib tug saj zawg zog elastomer thaum kho.

- Kho maj mam (tack- lub sijhawm pub dawb kwv yees li 30-60 feeb, kev kho tag nrho yuav siv sijhawm 24-72 teev), ua rau nws haum rau cov ntawv thov uas yuav tsum tau hloov pauv.

- Tsis muaj kua qaub thiab tsis yog -corrosive rau substrates xws li hlau thiab iav. Nws pH nyob ze nruab nrab (6.5-7.5).

2. Medium Silicone Structural Adhesive:

- Ntxiv modulus silanes los yog plasticizers los ua ib tug siab -modulus (elastic modulus Ntau tshaj los yog sib npaug rau 0.4 MPa) bondline thaum kho. Qee cov khoom tau lees paub rau ASTM C1184 tus qauv.

- Kev kho sai dua (tack- lub sijhawm pub dawb 20-40 feeb) thiab lub zog siab (lub zog tensile Ntau dua lossis sib npaug ntawm 0.7 MPa, xa mus rau GB 16776-2005), ua rau nws tsim nyog rau cov qauv thauj khoom.

II. Kev sib piv ntawm kev ua haujlwm thiab kev siv
1. Mechanical Properties:

- Cov khoom siv tsis zoo silicone feem ntau muaj lub zog tensile ntawm 0.5-1.0 MPa thiab elongation ntawm 200% -300%, ua rau lawv tsim nyog rau kev sib khi cov pob qij txha dynamic (xws li qhov khoob ntawm lub qhov rooj thiab qhov rais).

- Medium silicone structural adhesives feem ntau muaj lub zog tensile tshaj 1.0 MPa, nrog rau qee qhov siab - qib zog ncav cuag 1.5 MPa (xws li Baiyun SS622). Lawv tau tsim tshwj xeeb rau kev sib txuas cov ntaub ntawv xws li iav kab hlau rhuav phab ntsa thiab qhuav- dai pob zeb.

2. Huab cua Resistance thiab Temperature Range:

- Ob leeg yog UV- tiv taus, tab sis nruab nrab silicone structural adhesives muaj qhov dav dav dua - lub sijhawm kub ntau (-40℃txog 150 degree, piv rau -50℃txog 120℃rau nruab nrab silicone nplaum).

Qhov nruab nrab silicone nplaum tsom ntau dua rau kev tiv thaiv dej tsis zoo thiab cov kab mob mildew (ua raws li GB / T 14683-2017), thaum cov txheej txheem nplaum yuav tsum dhau qhov kev ntsuam xyuas seismic (xws li JIS A5758).

3. Cov ntawv thov ib txwm:

- Tsis siv neeg silicone nplaum: chav dej tsis muaj dej thiab sealing, pobzeb grouting, thiab cov yeeb nkab sib txuas.

- Nruab nrab silicone structural adhesives: High-nce lub tsev iav ntaub thaiv phab ntsa, sunroom thav duab sib txuas, thiab elevator ncej reinforcement.

III. Daim ntawv thov ceev faj
1. Ua ntej siv cov nplaum nplaum uas tsis muaj silicone, lub substrate nto yuav tsum tau ntxuav kom tsis txhob muaj roj paug uas yuav cuam tshuam rau adhesion. Cov txheej txheem nplaum yuav tsum tau qhuav substrate thiab siv cov primer (piv txwv li, txhuas yuav tsum tau kho tshwj xeeb).

2. Cov nplaum nplaum yuav tsum tau kuaj xyuas kev sib raug zoo (xa mus rau ASTM C1087) kom tsis txhob muaj tshuaj lom neeg nrog cov ntaub ntawv sib cuag.

Qhov kev sib piv saum toj no qhia tau hais tias txawm hais tias ob qho tib si yog cov organic silicone nplaum, lawv lub hom phiaj tsim thiab ntsuas kev ua tau zoo sib txawv. Cov neeg siv yuav tsum xaiv ib qho raws li lawv cov kev xav tau tshwj xeeb.