Binciken harshen wuta na robobi

Binciken robobi - macromolecules tare da tsari mai rikitarwa - wani aiki ne da aka yi kawai a cikin dakunan gwaje-gwaje na musamman. Duk da haka, a gida, za'a iya bambanta mafi yawan kayan aikin roba. Godiya ga wannan, zamu iya ƙayyade abin da kayan da muke hulɗa da su (kayan daban-daban suna buƙatar, alal misali, nau'in manne daban-daban don shiga, da kuma yanayin amfani da su ma daban-daban).

Don gwaje-gwaje, tushen wuta (har ma yana iya zama kyandir) da tongs ko tweezers don riƙe samfurori sun isa.

Koyaya, bari mu ɗauki matakan da suka dace.:

- muna yin gwajin nesa da abubuwa masu ƙonewa;

- muna amfani da ƙananan samfurori (tare da yanki na 1 cm).²);

- ana gudanar da samfurin a cikin tweezers;

- a cikin yanayin da ba a yi tsammani ba, rigar rigar za ta zo da amfani don kashe wutar.

Lokacin ganowa, kula da abu flammability (ko yana ƙonewa cikin sauƙi kuma yana ƙonewa lokacin da aka cire shi daga wuta), launin harshen wuta, ƙanshi da nau'in ragowar bayan konewa. Halin samfurin a lokacin ganewa da bayyanarsa bayan harbe-harbe na iya bambanta da bayanin dangane da abubuwan da aka yi amfani da su (fillers, dyes, ƙarfafa fibers, da dai sauransu).

Don gwaje-gwaje, za mu yi amfani da kayan da aka samo a cikin yanayinmu: guntu na takarda, kwalabe da fakiti, tubes, da dai sauransu A kan wasu abubuwa, za mu iya samun alamomi akan kayan da aka yi amfani da su wajen samarwa. Sanya samfurin a cikin tweezers kuma sanya shi a cikin harshen wuta:

1. Rubber (misali bututu na ciki): mai ƙonewa sosai kuma baya fita idan an cire shi daga mai ƙonewa. Harshen yana da duhu rawaya kuma yana da hayaki sosai. Muna warin roba mai kona. Ragowar bayan konewa ne narkakken taro mai ɗaure. (hoto na 1)

2. celluloid (misali ƙwallon ping-pong): mai ƙonewa sosai kuma ba zai fita ba lokacin da aka cire shi daga mai ƙonewa. Kayan yana ƙone da ƙarfi tare da harshen wuta mai haske. Bayan konawa, kusan babu sauran saura. (hoto na 2)

3. PS polystyrene (misali kofin yogurt): yana haskakawa bayan ɗan lokaci kuma baya fita lokacin da aka cire shi daga mai ƙonewa. Harshen wuta yana rawaya-orange, baƙar fata hayaƙi yana fitowa daga gare ta, kuma kayan ya yi laushi kuma ya narke. Kamshin yana da daɗi sosai. (hoto na 3)

4. Polyethylene PE i polypropylene PP (misali jakar foil): mai ƙonewa sosai kuma baya fita lokacin da aka cire shi daga mai ƙonewa. Harshen rawaya ne tare da halo shuɗi, kayan ya narke kuma yana gudana ƙasa. Kamshin konewar paraffin. (hoto na 4)

5. PVC polyvinyl chloride (misali bututu): yana ƙonewa da wahala kuma sau da yawa yana fita idan an cire shi daga mai ƙonewa. Harshen rawaya ne tare da koren halo, wani hayaki yana fitarwa kuma kayan sun yi laushi sosai. PVC mai ƙonewa yana da wari mai kauri (hydrogen chloride). (hoto na 5)

6. PMMA polymethyl methacrylate (misali, wani yanki na "gilashin kwayoyin halitta"): yana haskakawa bayan ɗan lokaci kuma baya fita lokacin da aka cire shi daga mai ƙonewa. Harshen rawaya ne tare da shuɗin halo; lokacin konewa, kayan yana yin laushi. Akwai kamshin fure. (hoto na 6)

7. Poly (ethyl terephthalate) PET (kwalban soda): yana haskakawa bayan ɗan lokaci kuma yakan fita idan an cire shi daga mai ƙonawa. Harshen rawaya ne, ɗan hayaƙi. Kuna iya jin wari mai ƙarfi. (hoto na 7)

8. PA polyamide (misali layin kamun kifi): yana haskakawa bayan ɗan lokaci kuma wani lokacin yana fita idan an cire shi daga harshen wuta. Harshen wutar shuɗi ne mai haske tare da titin rawaya. Kayan yana narkewa kuma yana diga. Kamshin kamar konewar gashi. (hoto na 8)

9. Farashin PC (misali CD): yana haskakawa bayan ɗan lokaci kuma wani lokacin yana fita idan an cire shi daga harshen wuta. Yana ƙonewa da harshen wuta mai haske, yana hayaƙi. Warin yana da halaye. (Hoto na 9)

Duba shi a bidiyo:

Binciken harshen wuta na robobi