Guddiga PP (Polypropylene), qalab polypropylene), arinta polymer si ballaaran loo isticmaalo codsiyada casriga ah iyo rayidka casriga ah, waxay isku dartaa aqoonta aqoonta badan ee agabka sayniska, falanqaynta farsamada, falanqaynta farsamada, iyo laqabsashada deegaanka, iyo laqabsashada deegaanka. Si aad si qoto dheer u fahamto caqliga naqshadeynta guddiga PP, waa inaan ka bilownaa waxyaabaha guryaha dhaxalka ah oo aan si tartiib tartiib ah u falanqeeyo caqliga aasaasiga ah ee ku lug leh qaabeynta qaab dhismeedka, kor u qaadida waxqabadka, iyo dheer-.
1. Guryaha guud ee qaaska ah: Caqabadaha aasaasiga ah ee naqshadeynta guddiga PP
Naqshadaynta guddiga PP-ka waxaa ugu horreyn ku saleysan qaab dhismeedka molikalka iyo astaamaha jirka ee polypropylene. Polypropylene waa semi-fi'en {- ee ay dhigaan polumlumeriling by polymerastic-ka polymomerization ee monomles-ka si ay u sameeyaan polymoners-ka toosan ({{}} laf-dhabarka) laf-dhabarta laf-dhabarka) laf-dhabarka. Joogtada ah ee silsiladaha molikalalar ayaa go'aamiya maaddada sheyga (caadi ahaan 40% -70%). Qaab dhismeedkani wuxuu siinayaa guddiga PP sedexdiisa kumbuyuutar ee aasaasiga ah: Miisaan fudud iyo xoog sare, oo ah kiimiko, iyo dareenka kuleylka.
Laga soo bilaabo aragtida farsamada, xaashida PP waxay leedahay cufnaanta kaliya ee qiyaastii 0.9 {{6} 0.91 g / cm³ (qiyaastii 1/8 {7} 40 MPA 40 MPA oo ay ku sii daraan dhalada dhalada). Waxay sidoo kale soo bandhigayaan cashuur cakiran oo aad u wanaagsan Si kastaba ha noqotee, modulskeeda hooseeya (qiyaastii 1-2 GPA) micnaheedu waa isqarxin weyn ayaa laga yaabaa inay ka dhacdo meelaha ay ku badan yihiin spans waaweyn ama uruurinta walaaca fekerka ah, oo lagama maarmaan u ah hagaajinta qaabeynta ee kordhay ama feeraha la xoojiyay.
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 darajo) ama soo-gaadhista UV ee daba dheeraatay ayaa sababi kara jaranjarada molikalal, taasoo horseedaysa gabow (oo loo muujiyey sidii layaableh iyo qulqulo). Sidaa darteed, codsiyada dibedda waxay u baahan yihiin in lagu daro in lagu xakameeyo xannibaadayaasha UV ama jaakadaha dusha sare ee ilaalinta.
2. Galitaanka naqshada qaab dhismeedka: dheelitirka shuruudaha shaqada iyo qaababka
Naqshadaynta gaarka ah ee go'doonka PAP waa inay ahaadaan mid udub dhexaadka u ah "shaqada loogu talagalay" iyo "qaababka guuldarada ee suurtagalka ah." Shuruudaha shaqada ee caadiga ah waxaa ka mid ah culeyska {{1} dhaxalka, hubinta, qurxinta, ama howlaha ka-hortagga iyo guryaha ka hortaga, ama dilitaanka kiimikada, ama dib-u-dhaca walxaha kiimikada.
1. Load {- naqshadeynta qaab dhismeedka qaab dhismeedka: Isku-duwaha isku dubbaridan ee adkaanta iyo xoog
Marka go'yaal PP-ka loo adeegsado culeyska - qaybo ka kooban (sida shelftiops iyo shelf shelf), naqshadda waxay diiradda saareysaa xakameynta "muujinta" (tirada ciribtirka) iyo "culeyska ugu dambeeya." Marka loo eego qaaciidooyinka makaanikada sheyga, oo ah dib-u-dhigga ugu badan ee laxtanka si fudud loo taageeray ee loo qaybiyey Δ {{2}) (384ei) (halka Q uu yahay Moodhyada, E waa xilligii la dajiyay, oo aan yahay daqiiqada intria ee qaybta). Sababo la xiriira qiimaha hoose ee panels, haddii qaab dhismeedka saxan ee fidsan loo isticmaalo, plate plate-ka si toos ah ayaa loo isticmaalaa, oo ka hooseeya is-waafajinta ee loo baahan yahay (caadi ahaan, is-xadgudubka la oggol yahay waa ka yar yahay ama la siman yahay 1/200). Xalka waxaa ka mid ah:
• Qulqulka kordhinta: Wixii kasta oo ka mid ah dhumucdii, qiimahoodu wuxuu ku kordhayaa 8 jeer (i {{{{1} ee iskutallaabta ah qaybta {{3} ee tani waxay kordhisaa qiimaha iyo miisaanka.
• Xaddidaynta la-taabsan
• Isku-darka xoojinta
2. Naqshadeynta iyo xidhiidh xidhiidhka: kala hormarinta is dhexgalka bulshada
Guddiyada PP-ka waxaa badanaa loo isticmaalaa codsiyada sida tuubbada tuubbada iyo sanduuqa ku dhejinta. Naqshadeynta xiriirkoodu waa inay wax ka qabataa meesha xanuunka ee lagu xayiro qalabka adag ee qalabka polymer. Polypropylene waxay leedahay tamar dusha sare ah (qiyaastii 30 mn / m), taasoo adkeyneysa in la sameeyo dammaanad wax ku ool ah oo leh adhees-ka caadiga ah (sida epoxy resin). Sidaa darteed, hababka ku biirista jirka ayaa laga door bidaa qaabeyntan:
• Hot-melt welding: Utilizing PP's melting point (approximately 160-170℃), the joint is heated to a viscous state using a heat gun or ultrasonic waves, then pressurized to fuse, creating a molecular-level bond (strength exceeding 80% of the parent material);
• Xadhig / Bolt Qabow / Bolt
• Shaatrant - ah: Haddii xidhiidh ahaan lahuhuhu muhiim u yahay, xulo wakiilka daaweynta ee takhasuska leh (marka hore mari sunta acrylic-ka), ama u isticmaal shaati dabacsan (sida silikone dafice) si aad u buuxiso farqiga u dhexeeya.
3. Naqshadeynta laqabsashada deegaanka: anti - ballaarinta iyo ballaarinta shaqada
Deegaannada takhasuska leh (sida bannaanka, {}}} huur, iyo bey'ad aad u sarreeya), naqshadda xaashida ee aadka u yar ee PP waxay u baahan tahay tixgelin dheeraad ah oo ku saabsan ballaarinta shaqeynaya:
• UV - naqshadda u adkaysata: ku darista kaarboon (ku dhawaad 2%) ama waxyaabaha benzotriazoles (sida benzotriazoles), dib u dhigista silsiladaha moles-ka, oo ku dheereeya nolosha adeegga dibedda 1-2 sano illaa in ka badan 5 sano illaa 5 sano.
• Qaab-dhismeedka / qaabeynta ka hortaga '' Ku habboon dharka elektiroonigga ah xamuul iyo dabaqa ka hortagga saldhigyada gaaska.
• Antibacterial Design: Loading silver ions, zinc ions, or nano-titanium dioxide (TiO₂) inhibits bacterial growth through photocatalysis or ion release (antibacterial rate >90%). Sida caadiga ah loo isticmaalo waxyaabaha ka hortaga cuntada iyo xargaha aaladda caafimaadka.
3. Caqabadaha farsamada ee tikniyoolajiyadda ku saabsan naqshadeynta
Naqshadeynta xaashida PP waa inay sidoo kale laqabtaa astaamaha lagu farsameeyo. Qalabka loo yaqaan 'themontoplastic ashtat' waxaa lagu samayn karaa qaabab ay ka mid yihiin wasakhda, ka-saarista, iyo riixida kulul, laakiin geedi socodyo kaladuwan ayaa ku soo rogaya xadidaadaha gaarka ah faahfaahinta qaab-dhismeedka. Tusaale ahaan:
• dhumucda dhumucda: dulqaadka qaro weyn ee go'doominta pp-ka ee la soo saaray ayaa caadi ahaan ± 0.5mm. Haddii qaab-dhismeedka uu u baahan yahay sax sax ah (tusaale, ± 0.2mm), khadka saxda ah ee saxaafadda ama farsamada xigta (tusaale ahaan, dhalada CNC) ayaa loo baahan yahay.
• Xeerka geeska iyo xagal qabyada ah: geeska fiiqan (r <0.5mm) duritaanka go'yaal PP-ka PP-ka ee loo yaqaan 'PP' ayaa u nugul uruurinta walaaca iyo jabsiga. Sidaa darteed, dhammaan geeska ku jira naqshadeynta waa in la soo koobaa (r ka weyn ama le'eg 1mm lagu talinayo). Intaa waxaa sii dheer, haddii wax laga barto sare (tusaale ahaan, feerka), masaafada daloolka) waa inay ka weynaataa ama u dhigantaa 1.5 jeer dhumucdii xajmiga ah si looga hortago cirifka.
• Awood-kooxeed: Haddii naqshadda ay ka mid tahay kala-goysyada, hubi in dhumucda darbiga oo joogto ah ee wadajirka (qalloocinta ka yar ama le'eg 10%). Haddii kale, aag khafiif ah ayaa dhalaali doona oo socon doona marka hore inta lagu jiro dhunkashooyinka dhalaalay, waxay suuragal tahay inay ka hortagaan aagga dhumucdu ka soo baxaan.
Gunaanad: Khariidad saynis ah oo ka socota aragtida si ay ugu dhaqmaan
Naqshadaynta looxyada pp-yada ayaa muhiim u ah seddex- ah oo isku dheelitiran "ashyaa'da, shuruudaha shaqada, iyo caqabadaha ka baaraandega." Naqshadeeyayaashu waa inay si qoto dheer u fahmaan dhaqanka molikal ee polypropylene (sida saamaynta cryststallity (sida ay u xoojinayaan feeraha (sida ugu yar ee xayndaabka) si loo gaaro qiimaha ugu yar ee loo yaqaan 'prett radius') si loo gaaro qiimaha ugu wanaagsan ee lagu sameeyo waxqabadka. Iyada oo la wanaajinayo tikniyoolajiyada wax-ka-beddelka (sida Nanocomposites iyo horumarka bio {{3} {3} ee ku saleysan polypropylene), mabaadi'da naqshada ee godadka PP-ka ayaa sii wadi doonta, siinta xalka maaddada la isku halleyn karo ee codsiyada khafiifka ah iyo kuwa shaqeynaya.
