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

Roba ta farko da aka yi ta hanyar roba gaba ɗaya a tarihin ɗan adam ita ce resin phenolic da Baekeland ta Amurka ta yi da phenol da formaldehyde a shekarar 1909, wanda kuma aka sani da filastik ɗin Baekeland. Ana yin resin phenolic ta hanyar haɗakar phenols da aldehydes, kuma suna cikin robobi masu saita thermosetting. Tsarin shiri ya kasu kashi biyu: mataki na farko: da farko a yi polymerize zuwa mahaɗi tare da ƙaramin matakin polymerization mai layi; mataki na biyu: yi amfani da maganin zafin jiki mai zafi don canza shi zuwa mahaɗin polymer tare da babban matakin polymerization.
Bayan fiye da shekaru ɗari na ci gaba, kayayyakin filastik sun zama ko'ina yanzu kuma suna ci gaba da girma a cikin wani yanayi mai ban tsoro. Tsarkakken resin na iya zama mara launi da haske ko fari a bayyanarsa, don haka samfurin ba shi da siffofi masu haske da ban sha'awa. Saboda haka, ba wa kayayyakin filastik launuka masu haske ya zama alhakin da ba za a iya mantawa da shi ba na masana'antar sarrafa filastik. Me yasa robobi suka bunƙasa cikin sauri cikin shekaru 100 kacal? Musamman saboda yana da fa'idodi masu zuwa:

1. Ana iya samar da robobi a babban sikelin.mold ɗin filastik)

2. Yawan robobin yana da sauƙi kuma ƙarfinsa yana da yawa.

3. Roba yana da juriya ga tsatsa.

4. Roba yana da kyawawan kaddarorin kariya da kuma kariya daga zafi.

Akwai nau'ikan robobi da yawa. Waɗanne manyan nau'ikan thermoplastics ne?

1. Polyvinyl chloride (PVC) yana ɗaya daga cikin manyan robobi da ake amfani da su a fannin gabaɗaya. Daga cikin manyan robobi guda biyar a duniya, ƙarfin samar da shi ya fi na polyethylene. PVC yana da kyakkyawan tauri da juriya ga tsatsa, amma ba shi da laushi, kuma monomer ɗinsa yana da guba.

2. Polyolefin (PO), wanda aka fi sani da shi sune polyethylene (PE) da polypropylene (PP). Daga cikinsu, PE yana ɗaya daga cikin manyan samfuran filastik na gama gari. PP yana da ƙarancin yawa, ba shi da guba, ba shi da wari kuma yana da kyakkyawan juriya ga zafi. Ana iya amfani da shi na dogon lokaci a zafin da ya kai digiri 110 na Celsius.cokalin filastikan yi shi ne da sinadarin PP mai daraja a abinci.

3. Resin Styrene, gami da polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS(PMMA) da kuma polymethyl methacrylate (PMMA).

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

An rubuta ganowa da amfani da robobi a cikin tarihin tarihi, kuma ita ce babbar ƙirƙira ta biyu da ta shafi ɗan adam a ƙarni na 20. Hakika robobi abin al'ajabi ne a duniya! A yau, za mu iya cewa ba tare da ƙari ba: "Rayuwarmu ba za ta rabu da robobi ba"!