Kela a me keia lā mākou hoʻohana huahana i mai PVC. He aha ka keia waiwai?

Ua pono e mai la oia i ke kālā no ke ola makemake e loa ke koikoi ole PVC. He aha ka mea no ka pōʻaiawaiwai kēia? Details o PVC i keia la e mai ai i 15 kilograms o ka huina o ke kaupaonaʻana o ka awelika Europa kaʻa, ua lako ua komo i loko o ka? Iecaianoaaiiie o consumer waiwai (kala, ka lole, lole kamaʻa, lako, papa kapa, uku pepa, etc.)

Medicine no ka oi ma mua o ka hapalua o ka kenekulia i ia mea PVC. He aha ka mea hiki ke ike e haawiia keia i ka lehulehu hookahi-hoʻohana lako a pan. Where oe ke loaʻa i ke AEeAaOA no na papa, papale hainaka,ʻoki lāʻau lapaʻau Loan, catheters, manaʻo no ka ai ana, ke koko mauʻeke. Keia mea ua wehewehe aku ma ka haʻahaʻa waiwai e lilo aku, ua ana auou caiaiai ka laholio a me ka aniani, eaaei sterilized, ka mea hiki ke hoʻohana 'ia i loko o ke kanaka kino.

Inā mākou e nānā i ka mea e noho ana i loko o ko makou hale, he nui loa o ia mea no hoi i o PVC. He aha ka mea hiki ia? Tewetewe koloriside He pinepine ke kumu no ka uila'īpale, paipu, window piliʻike, toys,'ōpala kumuhana, lawe lima kaul, ea omole, paipu no ka toothpaste a mea 'ē aʻe.

He aha hoʻoholo i ka laha PVC? He aha ka mea i ka Nine Inch wahi o Hawaii? E like me ka haʻilula (-CH2-CHCl-) ma ka degere N (degere o ka polymerisation) PVC mea he kemikala pīlali i pili ana i ka waihona ipu, a ua hua mai la mai ka chlorine a me ka aila (57 a me 43 hapa haneri niioaaonoaaiii). ? Iecaianoaaiiuo keʻano o ka hanaʻana i emi ma mua o ka hapalua i kalele iho ma luna o lako o ka aila huahana, aʻo ke kala ana o keia mea ia e pono a me kona kumukuai - haʻahaʻa.

Tewetewe ma ka helehelena o ke keʻokeʻo powdery waiwai me ka maikai dielectric waiwai. He odorless a me ka tasteless, insoluble i loko o ka wai, hoʻopale i ka'okesaside, poorly hoomalamalamaia mai (ma muli o ka chlorine i loko o ka haku mele 'ana), hoʻopale i nāʻakika, mea pōhaku mea kāhinu, alkalis, waiʻona mai ke kino. I ka enaena i 100 degere C. waiwai decomposes hydrogen koloriside liberation.

PVC hana hoʻomaka me pōʻalo o ka paʻakai koloriside paakai pāʻoihana (ma ka hana ana o ka pila hookuuia). Ma ia laua, me ka aila loko mai o'etolina (i kekahi kaʻina hana i kapaia "ńlua"). Mahope, chlorine a me ka'etolina hui hua o ka'etolina dichloride. I ka huli hana dichloride, vinyl koloriside (lātoma), a ua hoohuliia laila, i loko o ka polymerization i ka makemake waiwai. A hiki i keia, ua pākuʻi likeʻole eiiiiiaiou, hiki e loaa i ka hoʻopau 'ana i huina hoonui me kekahi mau waiwai no ka mea pili kaiaulu.

PVC Manufacturers hoʻohana ekolu walaʻauʻana epekema no ka polymerization o monomers aeie, ka wehe a me ka emulsion. Ma keia wehe e hoʻohana i ka loaa palupalu, kalaka nui-ʻoʻoleʻa a me kaʻoʻoleʻa lula ea, a me ka emulsion - no ka pahee huahana loaa ma plastisols. Ke kaumaha ma muli o ka wa e kaawale aku ai imua o plasticizers i loko o ka haku mele 'ana ua hookuu, niioaaonoaaiii unplasticized a me ka plasticized mea. Ka mua ka emi hoʻopale i haʻahaʻa Mahana O Ke Kai (mai i ka hua 15 degere C), a me ka lua o ka hoole aku i ke anuanu maila i -60 degere. I keia la, i ka loa koiʻana iā pilikia me kēia mau waiwai o kā lākou ohi, a me hoʻopōʻaiapuni.