Kushandiswa kweHTPB muPotting/encapsulation yeElectronic Materials
HTPB (Hydroxyl-Terminated Polybutadiene), se elastomer inoshanda zvakanyanya, inopa zvakanakira zvakasiyana mukushandiswa kwemidziyo yemagetsi muhari, kunyanya mumamiriro ezvinhu anoda kuchinjika, kuramba mamiriro ekunze, uye kudzivirira kupisa kwemagetsi. Pazasi pane pfupiso yepfungwa huru maererano nekushandiswa kwe HTTPB zvekushandisa muhari yemagetsi:
**1. Hunhu uye Mabhenefiti eHTPB pakugadzira Potting**
1. - Kuchinjika uye Kuramba Kukanganiswa: Kana zvapera, HTTPB inoumba elastomer inobvisa kushushikana kwemuchina, ichidzivirira zvikamu zvemagetsi zvinonzwa (semuenzaniso, masensa, mabhodhi edunhu) kubva mukuzununguka kana kuwedzera kwekupisa.
2. -Kudzivirira Kwemagetsi: Kudzivirira kwakanyanya (>10¹⁴ Ω·cm), zvichiita kuti ikodzere kudzivirira kwemagetsi ane simba guru kana kutumira masaini ane simba guru.
3.- Kusagona Kushandiswa Nemakemikari Nemamiriro Ekunze: Kusagona kupiswa neacids, alkalis, uye UV mwaranzi, kwakanakira zvishandiso zvemagetsi zvekunze (semuenzaniso, mabhokisi ePV junction, zvigadzirwa zvemagetsi zvemotokari).
4.- Kudzikira Kwemuviri Kushoma: Kunoderedza kushushikana kwemukati mushure mekubuda kwehari, kudzivirira kushanduka kwezvikamu kana kutsemuka.
5.- Kusanyorova neguruva: Inopa dziviriro inoshanda kubva kuzvinhu zvinosvibisa nharaunda.
**2. Dhizaini Yekugadzira Zvinhu Zvekushongedza**
- Sarudzo yeSisitimu Yekugadzirisa:
- Isocyanates (semuenzaniso, TDI, IPDI): Inogadzira network dze polyurethane; NCO/OH ratio (kazhinji 1.05–1.1:1) inofanira kudzorwa kuti ienzanise kuomarara uye kusimba.
- Kurapa Peroxide: Yakakodzera kushandiswa pakupisa kwakanyanya asi inogona kuderedza kuchinjika.
- Zvekuwedzera zvekuzadza:
- Zvinofambisa Kupisa: Boron nitride (inodziisa kupisa uye inofambisa kupisa), alumina (inodhura zvishoma).
- Zvinodzivirira Murazvo: Aluminum hydroxide, zvinodzivirira murazvo zvakagadzirwa nephosphorus kuti zvisvike pamazinga eUL94 V-0.
- Mapurasitiki: semuenzaniso, DOA (Dioctyl Adipate) kuderedza modulus, kunyangwe njodzi dzekutama dzichifanira kuongororwa.
**3. Mashandisirwo Akajairika**
- Zvemagetsi zveMasoja/Aerospace: Kuisa muhari dzemakombora, zvikamu zveradar, kushandisa HTTPBtembiricha yakakura (-50°C kusvika 80°C).
- Chikamu Chitsva Chesimba: Kuvharwa kweLithium battery pack, kudzivirira mamodule ekuchaja, kudzikamisa insulation uye kunyudzwa kweshock.
- Midziyo iri pasi pemvura: Kuisa midziyo yemugungwa, inodzivirira ngura mumvura ine munyu uye isingapindi mvura.
- Mabhodhi edunhu akadhindwa (PCBs)
- Kutaurirana neTerevhizheni neNzvimbo dzeNetwork
- Simba Rinodzokororwa uye Magetsi Emagetsi
- Zvemagetsi zveMarine
- Magetsi Emagetsi Anoshandiswa Nevatengi Anogara Kwenguva Yakareba
**4. Zvaunofanira Kufunga Nezvemaitiro**
- Kubvisa Mabhurumu: Kubvisa mweya mu vacuum (-0.095 MPa, maminetsi 10–20) kudzivirira mweya kubva pakupora.
- Mamiriro Ekugadzirisa: Kugadzirisa tembiricha yemukamuri (maawa 24–48); kupisa (60–80°C) kunoderedza nguva yekuchenesa kusvika kumaawa 4–8.
- Kubata Pamberi Pekunamira: Kurapa nePlasma kana maPrimars anodiwa kune substrates dzisiri dzepolar (semuenzaniso, PE) kuti pave nekusimbaradza kubatana.
**5. Kuenzanisa nezvimwe zvinhu zvehari**
| Pfuma | Epoxy Resin | Rabha reSilicone | |
| Kusununguka | Yakanaka kwazvo (kureba kupfuura 200%) | Murombo (asina kusimba) | Yakanaka kwazvo (>300%) |
| Kuramba Kupisa Kwakanyanya | Zviri pakati nepakati (100°C) | Yakanaka kwazvo (150–200°C) | Yakanaka kwazvo (200–250°C) |
| Mutengo | Zviri pakati nepakati | Zvakaderera | Yakakwirira |
| Dambudziko reMaitiro | Zviri pakati nepakati (kudzora hunyoro) | Zvakaderera | Zviri pakati nepakati (platinum catalyst) |
**6. Maitiro Ekuvandudza**
- Nano-Modification: Kubatanidza nano-SiO₂ kuti kuwedzere simba remakanika (semuenzaniso, simba rekudhonza rinowedzera kubva pa5 MPa kusvika pa8 MPa).
- Masisitimu Ekubatanidza: Kubatanidza pamwe chete ne epoxy (semuenzaniso, EP/HTTPB network dzinopinda mukati) kuti dzienzane nekusimba uye kusimba.
HTTPB Zvinhu zvekushandisa muhari zvinonyanya kukodzera kuchengetedzwa kwemagetsi munzvimbo dzinoshanduka-shanduka, uye mafomura anofanirwa kugadziriswa zvichienderana nezvinodiwa nemashandiro chaiwo.
Kambani yedu inopa HTTPB mumhando dzakasiyana-siyana uye inopa kugadzirwa kwakagadzirirwa zvichienderana nezvinodiwa nemutengi.
