PP board (polipropilɛn board), polimɛri minɛn min be baara kɛ kosɔbɛ bi iziniw ni siwiliw ka baarakɛcogow la, a be lɔnniya caaman don ɲɔgɔn na minanw lɔnniya, mekaniki sɛgɛsɛgɛli, baarakɛcogo fɛɛrɛw, ani lamini yɛlɛmani na. Walisa ka PP ka board dilan cogo faamu ka ɲɛ, an ka kan ka daminɛ ni minanw ka fɛnw ye minw be sɔrɔ ani dɔɔni dɔɔni, an ka kan ka lozisiyɛli jɔnjɔnw sɛgɛsɛgɛ minw be sɔrɔ fɛnw labɛncogo la, baarakɛcogo ɲuman na, ani wagatijan kɔnɔ.
1. Minanko sariyaw: PP Board Design ka baarakɛcogo kura .
PP board dilan cogo be dan na fɔlɔ ni poliporopilɛni ka molekiliw cogoya n’u farikolo cogoyaw ye. Poliporopilɛni ye thermoplasti ye min be dilan ni poropilɛni monomɛriw ka polimerizasiyɔn ye walisa ka polimɛri lineari dilan ni metili kuluw ye ({2}}CH₴) kɔkolo kɔnɔ. A ka molekiliw ka to ka kɛ tuma o tuma, o lo b’a yira ko fɛɛn min be sɔrɔ, o be se ka yɛlɛma (40%-70%). O labɛn be PP kɛ a ka jogo jɔnjɔn saba ye: a ka nɔgɔ ani a ka fanga ka bon, a ka kemikali nɔgɔya ani a ka funteni hakɛ.
Ka bɔ mekaniki la, PP sɛbɛn be ni densitɛri ye min be se 0,9-0,91 g/cm3 ma (1/8 ɲɔgɔn), nka a be bonya la 30{{7}40 MPa kan (o be caya ka se 60 MPa farali ma). A fana be sɛgɛsɛgɛri ɲuman yira min be se ka kɛ ni flexural tracked-t ye, o be ban ka kari kari doniw kɔrɔ, o min b’a to a be se ka baara kɛ ni baarakɛcogo dɔw ye minw be se ka kɛ wagatijan kɔnɔ (i n’a fɔ etazi tilanyɔrɔw ani minanw latangalanw). Nka, a ka elastisite min ka dɔgɔ (1-2 GPa) o kɔrɔ ko deformasiyɔnba be se ka kɛ yɔrɔ minw na spanbaw wala stress ka ca, a be se ka yɛlɛmaniw kɛ a ka gɛrɛntɛ caya fɛ wala a ka nɛgɛw be yɛlɛma.
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 degere ) wala UV be se ka yɛlɛma wagatijan kɔnɔ, o be se ka kɛ sababu ye ka molekiliw ka jɔlɔkɔ kari, o be na ni kɔrɔya ye (min be yɛlɛma i n’a fɔ nɔgɔ ni yɛlɛmani). O kama, kɛnɛma baarakɛcogow ka ɲi ka UV balilanw wala yɔrɔw ka faniw fara a kan walisa k’u yɛrɛ tanga.
2. Lozisiyɛli labɛnninw: Ka baara kɛ ni wari ye ani ka dɛsɛ .
PP sɛbɛnw dilan cogo kɛrɛnkɛrɛnnin ka kan ka sigi "baarakɛcogo ɲuman" ani "seko dɛsɛ cogoyaw kan." Baarakɛcogo minw ka teli ka kɛ, olu ye doni-} ka baarakɛcogo, datugu, dekorasɔn, walima fɛn wɛrɛw (i n’a fɔ yɛlɛmani ani banakisɛfagalanw), k’a sɔrɔ dɛsɛ cogoyaw be se ka kɛ ka kari, ka yɛlɛmani don, walima ka lamini degun fara a kan (ESC).
1. Load-} Labɛncogo labɛnnin: Sɛbɛri ni fanga yɛlɛmani .
Ni PP sɛbɛnw be baara kɛ doni-} ka fɛnw kɔnɔ (i n’a fɔ baarakɛda ani etaziw ka etaziw), o dilan cogo be sinsin "deflection" (deformation hakɛ) ani "waati kan." Ka kɛɲɛ ni minanw ye minw be se ka yɛlɛma, u ka yɛlɛmani hakɛ min be sɔrɔ boon dɔ kɔnɔ min be dɛmɛ ni doni ye min tilannin lo cogo kelen na, o ye δ=5qlddddddddddddddddddddddddddddddddd ́/(384EI) ye (yɔrɔ min q ye doni ye, l ye nɔgɔ ye, ani ne lo ye yɔrɔ ka inertia wagati ye). Ka sabu kɛ PP panneau hakɛ dɔgɔman ye, ni pɛtɛnin pɛtɛnin dɔ be baara kɛ ka ɲɛ, yɛlɛmani min be kɛ sɛrɛkili janw jukɔrɔ, o bena tɛmɛ baarakɛcogo wajibiyalen kan (a ka c’a la, yɛlɛmani min be se ka kɛ, o ka dɔgɔ ni 1/200 ye). Fɛɛrɛw ye:
• Ka dɔ fara a ka gɛrɛntɛ kan: Fani hakɛ bɛɛ la, n’ ka sɔngɔ be caya siɲɛ 8 (I=bh3/12 ka kuruwa yɔrɔ dɔ la min be se ka kɛ yɔrɔ kelen ye, nka o fana be dɔ fara sɔngɔ ni girinya kan.
• Ni an be fanga sɔrɔ: Ni an be 1/2-2/3 ka nɛgɛw digi (1/2-2/3, ani yɔrɔ min ka dɔgɔ ni boon gɛrɛfɛla ye, o be se ka caya ni 30%-50% ye, k’a sɔrɔ u be baara kɛ ni minanw ye.
• Faamuyali ɲɔgɔndan: A be to ni filɛrifɛnw ye i n’a fɔ fiyɛri (GF) ani kalisiyɔmu karibɔni (CaCO ), wala ka nɛgɛ mesh (i n’a fɔ aliminiyɔmu nɛgɛ) nɔrɔ a sanfɛla la, o fɛnw minw tɛ kelen ye, olu be se ka ɲɔgɔn dɛmɛ.
2. Ɲɛtaga ani ɲɔgɔndan labɛnnin: Ka ɲɔgɔndan kɛ ka bɛn ni ɲɔgɔn ye .
PP panneauw ka teli ka kɛ baarakɛcogo dɔw la i n’a fɔ tiyo flange ka datugu ani ka kɛsuw yɛlɛma. U ka ɲɔgɔndan labɛnnin ka kan ka ɲɛsin polimɛri minanw ka ɲɔgɔn minɛ gwɛlɛya ma. Polipropilɛn ka fanga ka dɔgɔ (30 mN/m ɲɔgɔn), o b’a to a ka gwɛlɛ ka jɛnɲɔgɔnya ɲuman sigi ni nɔrɔnanw ye minw be sɔrɔ (i n’a fɔ epokisi rɛzini). O kama, farikolo farali fɛɛrɛw lo ka di mɔgɔw ye o labɛn kɔnɔ:
• Hot-melting: Ka baara kɛ ni PP ka yɛlɛmani yɔrɔ ye (a be se ka kɛ degere 160{{2}170 degere ye ), o yɔrɔ be kalaya cogo ɲuman na ni tasuma wala ultrasonique ye, o kɔ, a be yɛlɛma ka kɛ fizi ye, o be molekili hakɛ dɔ dilan (min be se ka tɛmɛ 80% kan bangebagaw ka minanw na);
• Clip/bolt ko: Sigiyɔrɔ minw be ni barbe ye, wala minw be se ka latanga ni dingɛw ye minw be se ka yɛlɛma ani yɛrɛ ({1}}} trew (k’a lɔn ko PP kolanw ka kan ka fara a kan walisa ka stress hakɛ n’a farankan bali).
• Sealant- dɛmɛ: Ni nɔrɔnanko ka kan ka kɛ, PP furakɛlifɛn kɛrɛnkɛrɛnnin dɔ sugandi (min be furakɛli kɛ fɔlɔ ka dɔ fara a sanfɛla fanga kan, o tuma na, a be nɔrɔnanko kɛ), walima ka baara kɛ ni tagamasiɲɛ ye min be se ka yɛlɛma (i n’a fɔ silikɔni nɔrɔnan) walisa ka yɔrɔ fa.
3. Laminikoɲɛnabɔli labɛnni: Anti-Sɛbɛnni ani baarakɛcogo .
Lamini kɛrɛnkɛrɛnninw kama (i n’a fɔ kɛnɛma, yɔrɔ min ka bon-humidite, ani yɔrɔ minw be yɛlɛma yɛlɛma kosɔbɛ), PP ka sɛbɛnw labɛncogo be jateminɛ wɛrɛ kɛ baarakɛcogo yiriwali kan:
• UV-}resaire design: Ka karibɔni finman (2%) walima UV fɛnw (i n’a fɔ benzotriazɔliw) be UV yeelenw minɛ wala k’u jɛnsɛn, ka molekiliw ka tiɲɛni bila kɔfɛ ani ka kɛnɛma baara kɛ ka bɔ saan 1-2 kɔnɔ ka taga se saan 5 ni kɔ ma.
• A be se ka kɛ ko a be se ka kɛ ko: “Ka karibɔni nɛrɛmuguma (5%-10%), karbɔni nanotubuw, wala nɛgɛ muguw (i n’a fɔ aliminiyɔmu mugu) be dɔ bɔ 101Ω·cm ( PP sɛbɛ gansan) la ka taga se 10⁶Ω·cm (conductive grade) ma. A ka ɲi ka kɛ ɛlɛkitoronikifɛnw ye minw be se ka yɛlɛma ani dugukolo be se ka yɛlɛma gazi la.
• Antibacterial Design: Loading silver ions, zinc ions, or nano-titanium dioxide (TiO₂) inhibits bacterial growth through photocatalysis or ion release (antibacterial rate >90%). A ka ca a la, a be kɛ ka dumunifɛnw dilan ani ka furakɛli minanw kɛ.
3. Ka fɛɛrɛw labɛn ka ɲɛsin baarakɛcogo ma .
PP sɛbɛ dilan cogo fana ka kan ka bɛn n’a ka baarakɛcogo ye. Thermoplastikɛ minanw be se ka dilan ni fɛɛrɛ dɔw ye i n’a fɔ pikiriji, bɔli ani yɔrɔ minw ka ca, nka baarakɛcogo sifa caaman be dan sigi yɔrɔ kɛrɛnkɛrɛnninw na. Misaliya la:
• Tɛnfɔrite: PP sɛbɛw minw bɔra, u ka gɛrɛntɛ be se ka kɛ ±0,5mm ye. Ni a labɛncogo ka ɲi ka kɛ ka ɲɛ (i n’a fɔ, ±0,2mm), ka bɔ yɔrɔ dɔ la min be bɔ yɔrɔ dɔ la wala ka masinw dilan (i n’a fɔ, CNC ka mansin) ka kan ka kɛ.
• A be se ka yɛlɛma ani a be se ka yɛlɛma: Sharp yɔrɔw (R < 0,5mm) pikiri kɛtɔ/{1}}} PP sɛbɛw be se ka kɛ sababu ye ka degunw hakɛ n’u farafara. O kama, yɔrɔ minw bɛɛ be dilan cogo la, u ka kan ka yɛlɛma (Raba ka tɛmɛ 1mm kan wala a be bɛn n’o ye). Ka fara o kan, n’a ka ɲi ka baara filanan kɛ (i n’a fɔ bugɔli), dingɛ gɛrɛfɛla janya ka kan ka bonya ka tɛmɛ 1,5 kan, o min be se ka yɛlɛma walisa a kana tigɛ.
• Sonyali bɛnkan: Ni yɛlɛmani be kɛ ni splicing ye, a’ ye kogo bonya lajɛ ɲɔgɔn fɛ (sɛgɛsɛgɛri min be kɛ ka tɛmɛ 10 kan wala min be bɛn 10 ma). N’o tɛ, yɔrɔ min ka dɔgɔ, o bena yɛlɛma ani ka jigi fɔlɔ n’a be yɛlɛma ka kɛ yɔrɔ min na, o be se ka kɛ sababu ye ka yɔrɔ min ka bon, o bali ka fara ɲɔgɔn kan pewu.
Kuncɛli: Lɔnniya kariti min be bɔ miiriya dɔ la ka taga a bila baara la .
PP panneau dilanni ye "kɔnɔnafɛnw, baarakɛcogo, ani baarakɛcogo gɛlɛyaw ye." Dilanbagaw ka kan ka polipropilɛni ka molekiliw ka jogo faamu ka ɲɛ (i n’a fɔ kristalilini ka nɔɔ gwɛlɛ kan), fɛnw labɛncogo sariyaw (i n’a fɔ ka nɛgɛkunbɛnnanw sabati cogo min na), ani ka dan sigi (i n’a fɔ fitinɛ yɔrɔ fitinin) walisa ka se ka sɔngɔ ɲuman sɔrɔ ani ka baara kɛ ka ɲɛ k’a sɔrɔ u be baara kɛra. Ni ɲɛtaga fɛɛrɛw la (i n’a fɔ nanocomposites ani bio- min basiginin be polipropylene kan), PP ka yɔrɔw labɛncogo sariyaw bena to ka yiriwa, ka fɛnw di minw be se ka la a la, minw be se ka baara kɛ ni fɛnw ye minw ka nɔgɔ ani minw be baara kɛ.
