Ƙa'ida
A cikin 'yan shekarun nan, ana ci gaba da nuna damuwa game da haɗarin muhalli da lafiya da na'urorin hana harshen wuta da ake amfani da su a cikin robobi ke haifarwa. Sakamakon haka, na'urorin hana harshen wuta waɗanda ba na halogen ba sun shahara saboda amincinsu da kuma dorewarsu.
Masu hana wuta marasa halogen suna aiki ta hanyar katse hanyoyin konewa da ke faruwa lokacin da robobi ke fuskantar wuta.
1. Suna cimma wannan ta hanyar shiga tsakani ta zahiri da kuma ta sinadarai ga iskar gas mai ƙonewa da ake fitarwa yayin ƙonewa. Ɗaya daga cikin hanyoyin da aka saba amfani da su shine ta hanyar samar da wani kariyar carbon a saman filastik.
2. Idan aka fallasa su ga zafi, masu hana harshen wuta marasa halogen suna fuskantar wani sinadari, wanda ke fitar da ruwa ko wasu iskar gas marasa ƙonewa. Waɗannan iskar gas suna samar da shinge tsakanin filastik da harshen wuta, don haka suna rage yaɗuwar wuta.
3. Masu hana harshen wuta marasa halogen suna ruɓewa kuma suna samar da wani tsari mai karko wanda aka sani da char, wanda ke aiki a matsayin shinge na zahiri, yana hana sake fitar da iskar gas mai ƙonewa.
4. Bugu da ƙari, masu hana harshen wuta marasa halogen na iya rage iskar gas mai ƙonewa ta hanyar amfani da ionizing da kama free radicals da abubuwan da ke ƙonewa masu canzawa. Wannan amsawar ta karya sarkar amsawar ƙonewa yadda ya kamata, tana ƙara rage ƙarfin wutar.
Ammonium polyphosphate wani abu ne mai hana harshen wuta daga phosphorus-nitrogen. Yana da ƙarfin hana harshen wuta sosai a cikin robobi waɗanda ba sa guba kuma suna da fasalin muhalli.
Aikace-aikacen Roba
Ana amfani da robobi masu hana wuta kamar FR PP, FR PE, FR PA, FR PET, FR PBT da sauransu a masana'antar kera motoci don cikin motoci, kamar dashboards, allunan ƙofa, abubuwan zama, allunan lantarki, tiren kebul, allunan lantarki masu juriya ga gobara, switchgears, allunan lantarki, da jigilar ruwa, bututun iskar gas.
Ma'aunin hana harshen wuta (UL94)
UL 94 wani ma'aunin ƙonewa ne na filastik wanda Underwriters Laboratories (Amurka) ta fitar. Ma'aunin yana rarraba robobi bisa ga yadda suke ƙonewa a wurare daban-daban da kuma kauri daga mafi ƙarancin mai hana harshen wuta zuwa mafi yawan mai hana harshen wuta a cikin rarrabuwa shida daban-daban.
| Ƙimar UL 94 | Ma'anar Ƙima |
| V-2 | Konewa yana tsayawa cikin daƙiƙa 30 a wani ɓangare, wanda hakan ke ba da damar ɗigon filastik mai ƙonewa a tsaye. |
| V-1 | Konewa yana tsayawa cikin daƙiƙa 30 a kan wani ɓangare a tsaye, yana ba da damar samun ɗigon filastik waɗanda ba sa ƙonewa. |
| V-0 | Konewa yana tsayawa cikin daƙiƙa 10 a kan wani ɓangare a tsaye, yana ba da damar samun ɗigon filastik waɗanda ba sa ƙonewa. |
Tsarin da aka Tura
| Kayan Aiki | Tsarin S1 | Tsarin S2 |
| Homopolymerization PP (H110MA) | Kashi 77.3% | |
| Copolymerization PP (EP300M) | Kashi 77.3% | |
| Man shafawa (EBS) | 0.2% | 0.2% |
| Maganin hana tsufa (B215) | 0.3% | 0.3% |
| Hana digawa (FA500H) | 0.2% | 0.2% |
| TF-241 | Kashi 22-24% | Kashi 23-25% |
| Kayayyakin injiniya bisa ga ƙarin kashi 30% na TF-241. Tare da kashi 30% na TF-241 don isa ga UL94 V-0 (1.5mm) | ||
| Abu | Tsarin S1 | Tsarin S2 |
| Matsakaicin ƙonewa a tsaye | V0(1.5mm) | UL94 V-0(1.5mm) |
| Ma'aunin iskar oxygen mai iyaka (%) | 30 | 28 |
| Ƙarfin taurin kai (MPa) | 28 | 23 |
| Tsawaita lokacin hutu (%) | 53 | 102 |
| Yawan ƙonewa bayan tafasa ruwa (70℃, 48h) | V0(3.2mm) | V0(3.2mm) |
| V0(1.5mm) | V0(1.5mm) | |
| Modulus mai lankwasa (MPa) | 2315 | 1981 |
| Meltindex(230℃, 2.16KG) | 6.5 | 3.2 |
