Tarihin Filastik (Simplified Siffar)

Tarihin Filastik (Simplified Siffar)

A yau, zan ba ku taƙaitaccen bayani game da tarihin robobi.

Filayen roba na farko a tarihin ɗan adam shine resin phenolic wanda American Baekeland ya yi tare da phenol da formaldehyde a 1909, wanda kuma aka sani da filastik Baekeland.Phenolic resins ana yin su ta hanyar motsa jiki na phenols da aldehydes, kuma suna cikin robobi na thermosetting.An rarraba tsarin shirye-shiryen zuwa matakai biyu: mataki na farko: na farko polymerize cikin wani fili tare da ƙananan digiri na polymerization;mataki na biyu: yi amfani da maganin zafin jiki mai zafi don canza shi zuwa mahaɗin polymer tare da babban digiri na polymerization.
Bayan fiye da shekaru ɗari na ci gaba, samfuran filastik a yanzu suna ko'ina kuma suna ci gaba da girma a cikin wani yanayi mai ban tsoro.Tsaftataccen guduro na iya zama marar launi da bayyane ko fari a bayyanar, ta yadda samfurin ba shi da fa'ida da fa'ida.Don haka, ba da samfuran filastik launuka masu haske ya zama alhakin da ba za a iya kaucewa ba na masana'antar sarrafa robobi.Me yasa robobi suka ci gaba da sauri a cikin shekaru 100 kacal?Musamman saboda yana da fa'idodi masu zuwa:

1. Ana iya samar da robobi akan sikeli mai girma.(Tafilastik m)

2. Matsakaicin dangi na filastik shine haske kuma ƙarfin yana da girma.

3. Filastik yana da juriya na lalata.

4. Filastik yana da kyau mai kyau da kuma kayan haɓaka zafi.

Akwai nau'ikan robobi da yawa.Menene manyan nau'ikan thermoplastics?

1. Polyvinyl chloride (PVC) yana ɗaya daga cikin manyan maƙasudin robobi.Daga cikin manyan robobi biyar na duniya, karfin samar da shi ya zo na biyu bayan polyethylene.PVC yana da kyawawa mai kyau da juriya na lalata, amma ba shi da elasticity, kuma monomer nasa guba ne.

2. Polyolefin (PO), mafi yawan su ne polyethylene (PE) da polypropylene (PP).Daga cikin su, PE yana ɗaya daga cikin manyan samfuran filastik na gaba ɗaya.PP yana da ƙananan ƙarancin dangi, ba mai guba ba ne, mara wari kuma yana da kyakkyawan juriya na zafi.Ana iya amfani da shi na dogon lokaci a zafin jiki na kimanin digiri 110 na Celsius.Mucokali na filastikAn yi shi da darajar abinci PP.

3. Styrene resins, ciki har da polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABSda kuma polymethyl methacrylate (PMMA).

4. Polyamide, polycarbonate, polyethylene terephthalate, polyoxymethylene (POM).Ana iya amfani da irin wannan nau'in filastik azaman kayan gini, wanda kuma aka sani da kayan aikin injiniya.

An rubuta ganowa da amfani da robobi a cikin tarihin tarihi, kuma shi ne abu mai mahimmanci na biyu da ya shafi bil'adama a karni na 20.Filastik Lallai abin al'ajabi ne a duniya!A yau, za mu iya cewa ba tare da ƙari ba: "Rayuwarmu ba za ta rabu da filastik ba"!


Lokacin aikawa: Fabrairu-06-2021