Kuika mawindo pulasitiki ndi polojekiti yawo

The ntchito mawindo, lathuli mbiri pulasitiki ali aafupi mbiri. Kotero awa zaka zoposa makumi awiri kwa munthu? Only angapo mibadwo! Ena katundu, monga zimakhudza umoyo (chilengedwe), nthawi zina kuonekere patapita nthawi yaitali. Tisaiwale kuti unsembe wa pulasitiki mawindo ogula m'dziko lathu zinachitikadi pa nsonga ya kutchuka kwawo - zaka ziwiri zapitazi. Choncho, anthu ambiri amene ali kale analamula mazenera awa, kapena ngakhale ati, chidwi mu zimakhudza chilengedwe (ndipo ambiri Chofunika, thanzi) imapereka ntchito mtundu wa galasi.

Tiyeni tiyambe ndi choona kuti kupanga pulasitiki kupanga maziko a galasi amatsatila mfundo okhwima zotchulidwa Mlengi tsopano. Mbiri ya mandala, pulasitiki "wokonzeka" ntchito chuma chapadera - polivinilohlorida, nthawi zambiri amatchulidwa mu chidule PVC. Zothandiza khalidwe la uyu mtundu wa mapulasitiki - kukana kuti mankhwala ndi makhalidwe makina. Zikuchokera - Natural ndi kupanga ma polima. Malinga ndi gulu la pulasitiki ntchito kulenga zojambula zenera, adzaupereka kwa otchedwa thermoplastics. N'zosadabwitsa kuti mankhwala chifukwa mwachuluka ofanana ndi mankhwala, amene angapezeke mu chirengedwe. Thermoplastics - pa ma polima yomweyo amatha kupanga ulusi kugonjetsedwa ndi kuwonongeka. Ndipo maziko ndi zotsatira za njira kunachitika chikhalidwe - biopolymers. Ubwino wonse wa ma polima ndi biopolymers - hydrocarbon zikuchokera. Ngati tilankhula za mankhwala chigawo polivinilohlorida, ndi zikugwirizana chloro (amene anamasulidwa mchere) ndi ethylene (petrochemical mankhwala). Kusintha thermoplastic dongosolo maselo amalola angapo (maulendo 5) kubala kuwotcherera ake ndi kusungunuka.

pulasitiki Mbiri kupanga luso amapereka Kuwonjezera ufa zikuchokera zosakaniza zosiyanasiyana zofunika makhalidwe ogula. Tikumbukenso kuti kupanga kuika mawindo ku mtundu wodziwika, inunso kuchepetsa chiopsezo kuti Mlengi podsypet chinachake "cholakwika". Chifukwa kulingalira chabe - ndi makumi angapo kulemera anawonjezera zigawo zikuluzikulu, amene kudziwa ntchito makhalidwe a zomangamanga zenera m'tsogolo. List okha ena a iwo - fillers, modifiers, stabilizers. zosiyanasiyana zigawo zikuluzikulu kusintha bwino kukana kuti zotsatira matenthedwe (onse ozizira ndi kutentha), kupewa "kuchepa mphamvu" pulasitiki, kupereka mphamvu, kukana kuti kwambiri cheza ultraviolet. Pamene wakhala zatchulidwazi pamwamba, opanga yaikulu stratify mankhwala onse mogwirizana ndi mfundo mayiko khalidwe. Quality osakaniza losiyana harmlessness wathunthu kwa thupi chifukwa chakuti zigawo zikuluzikulu zonse mu mkhalidwe zikugwirizana, choncho palibe mphamvu anachita.

Kuti mfundo imeneyi, tiyeni tione kufanana lotsatira. owerenga ambiri mwina sadzachititsa chikaiko chakuti mazenera matabwa chabwinobwino kwathunthu! Sichoncho? Koma palibe! zamakono nkhuni ofotokoza zokutira zitsulo galasi kumaphatikizapo ndondomeko glued laminated mitengo yomwe amakhala ndi ntchito retardants lawi (zoipa). Komanso, kuonetsetsa moyo wautali wa mtengo, alandire ndi mankhwala ena ndi zoyipa pa thupi. Kotero kuti zabwino kwambiri zachilengedwe oyera kunja ndi khazikitsa pulasitiki mawindo. Mitengo lero ali pa mlingo ngati kuti mungakwanitse unsembe machenjerero pulasitiki popanda kuwononga kwambiri kwa bajeti.