PP Board (Board Board), nkhani za polymylene zomwe zimagwiritsidwa ntchito kwambiri pamapulogalamu amakono a mafakitale, zimagwirizanitsa chidziwitso cha anthu wamba pasayansi, kusanthula kwamakina, kukonza ukadaulo, ndi kusintha kwa chilengedwe. Kuti timvetsetse kwambiri kapangidwe kake ka Board, tiyenera kuyamba kuchokera ku zinthuzo ndipo tiyenera kupenda pang'onopang'ono mfundo zokhudzana ndi kapangidwe ka kapangidwe kake, kukhathamiritsa, komanso kutalika kwa mawu odalirika.
1. Katundu wa Concomits: Zovuta Zofunika Kwambiri za PP Board
Kapangidwe ka kabodi ka ma PP kumakakamizidwa makamaka kapangidwe kake kake kake ka polypropylene. Polypropylene ndi semi - cryrstalline thermoplastic yopangidwa ndi polymmerization kwa ma promeryne molymers kuti apange magulu a methyl ({{)} ch. Maunyolo ake pafupipafupi amazindikira kuti ma chstallity am'mimba (nthawi zambiri 40% -70%). Kapangidwe kameneka kamapatsa kasupe katatu kofunikira: Kuchepetsa thupi ndi nyonga yayikulu, kusamvana kwa mankhwala, ndi kukometsa kutentha.
Kuchokera pamakina opanga, ma pp pepala ali ndi kachulukidwe kambiri ka 0.9 {6} 0.91 g / masentimita (pafupifupi 1/8) Zimawonetsanso kutopa kwambiri kukana kwa magetsi {{8 {{8} Komabe, kutsika kwake kochepa kwa elastic (pafupifupi 1-2 koloko) kumatanthauza kuwonongeka kwakukulu kumatha kuchitika m'malo okhala ndi ma spans akuluakulu kapena kupsinjika kwakukulu, kusintha kwa mapangidwe owonjezereka.
Chemical stability is another major advantage of PP sheet: it is resistant to most acid, alkali, and salt solutions (such as sulfuric acid below 80% concentration and sodium hydroxide at 20%), as well as organic solvents (with a few exceptions, such as concentrated nitric acid and chloroform). This makes it a preferred choice for applications such as chemical tank linings and laboratory countertops. However, it should be noted that high temperatures (>80 degree) kapena kuwonekera kwa UV kumatha kuyambitsa kuwonongeka kwa ma talecular, komwe kumayambitsa ukalamba (kuwonetsedwa ngati kusokonekera). Chifukwa chake, mapulogalamu akunja amafunikira kuwonjezera kwa UV zopatsirana kapena zokutira pansi kuti mutetezedwe.
2. Malingaliro opanga mapangidwe: kusamalira zofunikira ndi zolimbitsa thupi
Kapangidwe kake ka ma PP kuyenera kukhazikika mozungulira "zomwe mukufuna" ndi "kuthekera kolephera." Zofunikira zodziwika bwino zimaphatikizapo katundu, kusindikizidwa, zokongoletsera, kapena kupanga mitundu, kapena kupanikizika kwa chilengedwe, kapena kupsinjika kwachilengedwe kuwonongeka (esc).
1. Lowetsani {{1}
Ma sp a pp amagwiritsidwa ntchito mu katundu -} Malinga ndi makina amakina osokoneza bongo, kusokonekera kwakukulu kwa mtengo wothandizidwa ndi zolembedwa ndi Δ} ql⁴at, e ndi nthawi yazachipatala. Chifukwa cha mtengo wotsika wa ma pp mapanelo, ngati mawonekedwe athyathyathya amagwiritsidwa ntchito mwachindunji, kusungunuka pansi pake kumapitirira magwiridwe antchito (nthawi zambiri, kufatsa kovomerezeka kumakhala kocheperako kapena kofanana ndi 1/200). Mayankho ndi:
• Kuchulukitsa makulidwe: Kuchulukana kulikonse kwa makulidwe, ndikukula kwa nthawi 8 (i =}}-, koma izi zimawonjezera mtengo ndi kulemera.
• Kulimbikitsidwa: mwa kukanikiza nthiti zazitali (1 / 2-2 / 3 za makulidwe, ndikukhala ndi nthawi yayitali kapena mphindi -50%, pomwe mukuchepetsa kugwiritsa ntchito zinthu zakuthupi.
• Kulimbikitsa Kulimbikitsana: Kuphatikizidwa ndi mafilimu monga fiber (gf) ndi cacbotim carbonate (COCO₃),
2. Kusindikiza ndi Kulumikizana: Kugwirizana Koyambirira
Mapanema a PP amagwiritsidwa ntchito pogwiritsa ntchito monga chitoliro cha chitoliro cha chitoliro ndi bokosi lopuma. Kulumikizana kwawo kumayenera kuthana ndi ululu wolumikizira zinthu zovuta za polima. Polypropylene ali ndi mphamvu yotsika (pafupifupi 30 mn / m), ndikupangitsa kuti zikhale zovuta kupanga mgwirizano wogwira ntchito wamba wokhala ndi zomata wamba (monga epoxy stun). Chifukwa chake, njira zakuthupi zolumikizira zakuthupi zimakonda mu kapangidwe kameneka:
• Pulani {{}}}}}
• Clip / Bolt Flatening: Katundu woletsa pulasitiki, kapena wotetezeka ndi mabowo a pre {{1} {}}}}}}
• Sealant {{0}:
3. Mapangidwe azosintha zachilengedwe: anti {}} ukalamba ndi magwiridwe antchito
Kwa madera apadera (monga zakunja, - chinyezi, komanso malo osungirako otsatsa), mapepala a PP amafunika kuganizira zowonjezera pakukula kwa magwiridwe antchito:
• UV {-: Kuchulukitsa kwa ma carbor (pafupifupi 2%) kapena owoneka ngati a Benzotria;
• Kupanga / kutsutsa kapangidwe ka kaboni (5% -10%), ma nanotubes a carbon) mpaka 10⁴ω · circes (a Aluminic cell) kapena pansipa. Zoyenera za onyamula zamagetsi ndi matalala a bungwe la Artastic m'magawo ogulitsa.
• Antibacterial Design: Loading silver ions, zinc ions, or nano-titanium dioxide (TiO₂) inhibits bacterial growth through photocatalysis or ion release (antibacterial rate >90%). Nthawi zambiri amagwiritsidwa ntchito mu zakudya zopangira zakudya zowerengera ndi zida zamankhwala.
3. Kukonza zopinga za ukadaulo pa kapangidwe kake
Makina a PP amayeneranso kuzolowera machitidwe ake. Zida za thermoplac zimatha kupangidwa pogwiritsa ntchito njira monga jakisoni monga jakisoni akuumba, ndikukaniza, komanso njira zosinthira, koma njira zosiyanasiyana zimapangitsa malire enieni pazinthu zosiyanasiyana. Mwachitsanzo:
• Kukula kwa makulidwe: Kulekerera kwa makulidwe a ma pp otalika ma pp ndi nthawi zambiri ± 0,5mm. Ngati kapangidwe kake kumafuna kuwongolera kwambiri (mwachitsanzo, ± 0,2mm), mzere wopitilira muyeso kapena Makina ophatikizira (mwachitsanzo, mphete ya CNC) imafunikira.
• Kuzungulira koloko ndikukonzekera ngodya: r <0.5mm) mu jakisoni - ma sheet opangidwa ndi ma pp amakonda kupsinjika ndi kusokonekera. Chifukwa chake, makona onse mu kapangidwe amayenera kuzunguliridwa (r wamkulu kuposa kapena wofanana ndi 1mm akulimbikitsidwa). Kuphatikiza apo, ngati kukonzanso kwachiwiri (mwachitsanzo, kuluma) kumafunikira, mtunda wam'mawa uyenera kukhala wamkulu kuposa kapena wofanana ndi 1.5 kaphikidwe ka pepalalo kuti muchepetse kung'amba m'mphepete.
• Kugwiritsa ntchito kugwirizana: Ngati kapangidwe kake kumaphatikizapo kupukusa, kuwonetsetsa kuti khoma lokhazikika pamanja (kupatuka ochepera kapena ofanana ndi 10%). Kupanda kutero, malo owonda adzasungunuka ndikuyenda koyamba pa kutentha kusungunuka, zomwe zingalepheretse malo ophatikizika.
Pomaliza: Kuyenda Kwa Sayansi Kuyambira Kuchita
Mapangidwe a ma pp panels ndi amodzi mwa atatu - Opanga ayenera kumvetsetsa mwamwano kwa nthawi ya Polypropylene (monga momwe akugwiritsira ntchito ma nthiti) Nthaka yamitima yosinthika (monga Nanocomposites ndi chitukuko cha bio {{3}
