<\/span><\/h2>\n\u0110\u1ea7u ti\u00ean l\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u00e1y \u0111\u00f9n th\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf 250 \u00b0 C \u0111\u1ebfn 280 \u00b0 C. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 l\u00e0m ngu\u1ed9i, sau khi v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c x\u1ea3 ra kh\u1ecfi \u0111\u1ea7u m\u00e1y, nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao, do \u0111\u00f3 ph\u1ea3i l\u00e0m ngu\u1ed9i ngay trong n\u01b0\u1edbc, v\u00ec polypropylene isotactic d\u1ec5 h\u00ecnh th\u00e0nh c\u1ea5u tr\u00fac tinh th\u1ec3 trong tr\u01b0\u1eddng h\u1ee3p l\u00e0m ngu\u1ed9i nhanh v\u00e0 c\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a tinh th\u1ec3 c\u1ea5u tr\u00fac t\u01b0\u01a1ng \u0111\u1ed1i l\u1ecfng l\u1ebbo.<\/span><\/p>\nC\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 thu \u0111\u01b0\u1ee3c c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao. Sau \u0111\u00f3 l\u00e0 k\u00e9o c\u0103ng, m\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c k\u00e9o c\u0103ng l\u00e0 \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n d\u1ecdc c\u1ee7a d\u00e2y \u0111ai v\u00e0 gi\u1ea3m \u0111\u1ed9 gi\u00e3n d\u00e0i. K\u00e9o c\u0103ng ph\u1ea3i \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh trong n\u01b0\u1edbc s\u00f4i, n\u00f3i chung l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t l\u1ea7n k\u00e9o c\u0103ng. Cu\u1ed1i c\u00f9ng l\u00e0 d\u1eadp n\u1ed5i d\u00e2y \u0111ai \u0111\u00f3ng g\u00f3i \u0111\u01b0\u1ee3c k\u00e9o c\u0103ng \u0111i qua hai con l\u0103n \u00e9p hoa v\u0103n sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u00e9p l\u00ean hoa v\u0103n, ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 l\u00e0 t\u0103ng ma s\u00e1t trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, kh\u00f4ng b\u1ecb tu\u1ed9t, h\u00ecnh th\u1ee9c \u0111\u1eb9p. Nh\u1ef1a k\u00e9o d\u00e2y Polypropylene, v\u00ec t\u00ednh d\u1ebbo t\u1ed1t, \u0111\u1ed9 b\u1ec1n \u0111\u1ee9t m\u1ea1nh, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi khi u\u1ed1n, m\u1eadt \u0111\u1ed9 th\u1ea5p, hi\u1ec7u su\u1ea5t t\u00e1c \u0111\u1ed9ng k\u00e9o t\u1ed1t, d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 c\u00e1c \u01b0u \u0111i\u1ec3m kh\u00e1c, hi\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/span><\/p>\n