Vat dung bang nhom nhua su re tien Rat doc

Tags: Ben Thanh Anh, nha chuyen mon, kem chat luong, cac san pham, nguoi su dung, vat dung, thuc pham, bang nhua, do dung, nguyen lieu, gia dinh, inox, su, chua, chon


Cac san pham do dung gia dinh tai cho Ben Thanh Anh: B.Trung
Khao sat thi truong TPHCM cho thay rat nhieu san pham do dung trong gia dinh bang nhua, inox, nhom, sanh su duoc san xuat tu loai nguyen lieu kem chat luong. Nhung mat hang nay ban kha chay do loi the gia re, mau ma phong phu. Tuy nhien, cac nha chuyen mon canh bao viec su dung nhung san pham nay de chua, nau thuc an se rat doc

Nguyen lieu nhua duoc chia thanh 2 nhom la nhua dung de san xuat vat dung thong thuong va loai dung de san xuat vat dung chua thuc pham nhu bat dia, to chen, ly, tach. The nhung vi muon co loi nhuan cao, mot so co so san xuat cac san pham nhua dung chua thuc pham da su dung nguyen lieu nhua doc hai, vi gia re hon. Dieu nay rat nguy hiem, boi cac kim loai nang cung nhu cac chat phu gia se thoi nhiem sang thuc an, thuc uong gay hai den suc khoe nguoi su dung.

Day ray do nhua doc hai

Thac si Do Thanh Thanh Son, Truong Khoa Cong nghe Vat lieu Truong Dai hoc Bach khoa TPHCM, cho biet ban chat polymer khong doc. Tuy nhien, khi san xuat nguoi ta lai tron nhieu chat phu gia (hoa deo, chat don...), va chinh cac chat nay se gay doc cho nguoi su dung.

Theo Trung tam Ky thuat Chat deo TPHCM, trong san xuat vat dung bang nhua, ngoai nhua nguyen sinh, cac nha san xuat con dua vao cac chat phu gia nhu chat gia cuong, chat chiu thoi tiet, chat chong tia tu ngoai, bot mau..., nhat la cac phu gia khong duoc phep dung trong san pham nhua dung thuc pham, lam cho san pham co nhieu doc to gay hai cho nguoi su dung. Chang han chat on dinh co kim loai nang nhu thiec huu co se gay hoai tu mo, thiec dibulyl dilaurat gay kich ung da... Chat hoa deo gay doc tinh qua duong an uong, chat tao mau gay ung thu... Doi voi nhua tai sinh cang tiem an nhieu doc to do khau san xuat khong the nao loai het cac chat doc. Loai nhua nay de bi oxy hoa manh, an mon theo dung moi, phong thich chat doc tu goc clo rat manh. Nhua tai sinh do co cau truc phan tu kem se de bi thoi nhiem khi tiep xuc thuc pham co do man, chua, nong.

Mat hang chen, dia, to, ly lam tu nhua melamine duoc nhieu nguoi ua chuong do cau truc cung, nhe, co do tham my cao. Tuy nhien, nhung co so lam an gian doi lai su dung nguyen lieu tuong tu melamine nhu nhua polystirene de san xuat nham co gia re. Loai nhua nay khong chiu duoc hoa chat, dau, dung moi huu co. Khi su dung chua thuc an co nhieu dau, mo, chua, man se gay hai cho suc khoe nguoi su dung, nhat la khi nhiet do vuot qua 60oC.

Do choi tre em: Mau cang sac so cang doc

Trong nhua PVC ma mot so co so san xuat thuong dung de san xuat do choi tre em co chua chat doc DOB. Khi tre dua nghich cho do choi vao mieng, chat doc nay se de dang xam nhap vao co the. Cac loai do choi bang nhua deo thuong co chat phthalates. Chat nay rat doc hai vi no se tham thau trong nuoc, thuc pham de xam nhap vao co the nguoi, nhat la doi voi tre em. De san pham do choi co mau sac sac so, cac nha san xuat con su dung ca mau cong nghiep von co thanh pham kim loai nang rat cao. Khi bi thoi nhiem cac chat se xam nhap vao co the gay ung thu.

Khong nen su dung noi nhom de nau man

Theo tien si Nguyen Ngoc Ha, Trung tam Vat lieu moi - Truong Dai hoc Bach khoa TPHCM, san pham inox co ca tram loai, nhung tap trung thanh 2 nhom la inox hit nam cham va inox khong hit nam cham. Inox nguyen chat it bi doc hai hon inox “gia” duoc tai che tu phe lieu do khau san xuat chua xu ly triet de cac chat doc hai.

Cung theo tien si Ha, doi voi san pham bang nhom khong nen dung chua thuc pham nhu muoi, nuoc mam, giam... Han che dung noi nhom de nau thuc an man vi khi nau se sinh ra muoi nhom gay doc cho co the nguoi, nhat la loai noi nhom san xuat tu nguon nhom phe lieu, xu ly khong het tap chat, khau thu dong hoa be mat “tro” voi moi truong khong bao dam. Cac nha chuyen mon con cho biet, ban than nhom de bi tac dong cua moi truong tu cac chat an mon. Trong moi truong axit, muoi, chua... be mat san pham nhom se bi ro, phong thich ion nhom vao co the lam cho nguoi su dung bi giam tri nho.

Soong, chao chong dinh cung co the gay doc

Xu huong su dung noi nieu, soong chao chong dinh ngay cang nhieu. Cac nha san xuat da khai thac triet de van de nay va dua chat chong dinh vao cac san pham. Thac si Do Thanh Thanh Son cho biet trong chao chong dinh co lop teflon, day la chat chong dinh tuong doi tro. Nhung neu chat chong dinh co chua cac phu gia khong duoc phep su dung se lam thoi nhiem sang thuc pham gay hai cho nguoi su dung. Dac biet, ky su Tong Kim Ty con cho biet co ca chat “nhai” chat chong dinh (chi la loai son chiu nhiet). Nhung san pham co lop chong dinh kem chat luong co kha nang gay doc rat cao. Do duoc lam tu cac loai son nen khi nau, nuong se tao ra lop khoi co chua cac phuc chat perfluoisobutylene, perfluorooctanoic acid pfoa, carbonylchloride. Nhung chat doc nay gay hai suc khoe cho nguoi su dung voi cac trieu chung tuc nguc, kho tho...

Do su cung doc hai

Cac mat hang chen, dia, ly, tach bang su hien nay duoc nhieu nguoi ua chuong do gia ban ngay cang re. Tuy nhien, tren thi truong TPHCM hien bay ban la liet cac mat hang su kem chat luong, re tien. Theo cac nha chuyen mon, san pham su kem chat luong cung co nhieu doc to do khau nung khong dat nhiet do chuan, tu 1.0000C- 1.2000C. De giam gia thanh, mot so nha san xuat su dung ca chi voi nong do cao nham lam cho phu gia nhanh chay o nhiet do thap... Ong Thai Van Hai, Giam doc Chi nhanh Cong ty Su Hai Duong tai TPHCM, cho biet: Mau ve tren san pham cang sac so thi ham luong chi cang lon. Cac hoa van nay phan lon deu duoc dan de can hoac ve tren men va duoc nung o nhiet do thap de giu duoc mau sac dep cho nen khong the nao loai tru het doc to chi.

Ngoai ra, cac nha chuyen mon cung cho biet tham moi, da ghe nem... co chua chat o nhiem nhu benzen, chlorofrom, xylene gay nhuc dau, kich thich da, gay choang, suyen. Van ep, giay dan tuong... chua cac chat o nhiem nhu amoniac, formaldehyde, benzo pyrenne, hydro cacbon gay nhuc dau, met moi, buon non, choang, kho tho, giam tri nho...

Luu y khi lua chon do nhua, inox

- San pham nhua co chat luong co the nhan biet bang cam quan nhu san pham phai co do trong, do bong cao, mau sac sang tuoi. Be mat san pham khong bi nham, khong tray xuoc, khong cong venh, khong co vet lom, khong bi co rut ve kich thuoc, khong bi ba - via o duong khep khuon (vanh, mieng, quai). Doi voi chen, to, dia, muong bang nhua nen chon san pham lam bang nhua melamine. Ly, dia, hop dung thuc pham chiu lanh nen chon san pham nhua PP. Cac dung cu chua thuc pham kho nen chon san pham nhua PS, PSHI. Ro, thau, xo nen chon san pham nhua PEHD. May xay sinh to, vo binh nau ca phe nen chon san pham nhua POM. Binh sua em be nen chon san pham nhua PC, PMMA.

- Doi voi do inox, khi mua noi nieu, soong chao nen chon loai inox khong hit nam cham co mac 304. Cac vat dung nhu dao keo... nen chon loai inox hit nam cham co mac 405. San pham inox co chat luong thi mau sac phai sang, co anh mo hoi nga vang. Be mat san pham phai phang, bong lang. Doi voi san pham nhom an toan, tren be mat duoc xu ly ky thuat co phu them lop thu dong hoa tro voi moi truong.

L.G-N.H

Nguyen Hai - Nguyen Hanh

Viet Bao

Tìm hiểu: Ben Thanh Anh, nha chuyen mon, kem chat luong, cac san pham, nguoi su dung, vat dung, thuc pham, bang nhua, do dung, nguyen lieu, gia dinh, inox, su, chua, chon
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