{"id":1742,"date":"2024-04-18T11:34:55","date_gmt":"2024-04-18T03:34:55","guid":{"rendered":"https:\/\/www.yearnintl.com\/?p=1742"},"modified":"2024-04-18T15:08:10","modified_gmt":"2024-04-18T07:08:10","slug":"the-role-of-pvp-va-copolymer","status":"publish","type":"post","link":"https:\/\/www.yearnintl.com\/ko\/problems\/the-role-of-pvp-va-copolymer\/","title":{"rendered":"PVP VA \uacf5\uc911 \ud569\uccb4\uc758 \uc5ed\ud560"},"content":{"rendered":"

PVPVA \uacf5\uc911 \ud569\uccb4 \uc18c\uac1c:<\/p>\n

PVPVA \uacf5\uc911\ud569\uccb4\ub294 N-\uc5d0\ud2f8\ub80c\ud53c\ub864\ub9ac\ub3c8(NVP)\uacfc \ube44\ub2d0\uc544\uc138\ud14c\uc774\ud2b8(VAc)\ub77c\ub294 \ub2e8\ub7c9\uccb4\ub97c \uc77c\uc815 \ube44\uc728\ub85c \ud569\uc131\ud55c \uc218\uc6a9\uc131 \uacf5\uc911\ud569\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

\ud3f4\ub9ac\uba38\ub294 \ud654\uc7a5\ud488 \ub4f1\uae09\uacfc \uc758\uc57d\ud488 \ub4f1\uae09 2\uac1c \ub4f1\uae09\uc73c\ub85c \uad6c\ubd84\ub418\uba70, \uadf8 \uc911 \uc758\uc57d\ud488 \ub4f1\uae09 \uc81c\ud488\uc740 \uc8fc\ub85c PVP-VA64\uc785\ub2c8\ub2e4. \ubbf8\uad6d<\/p>\n

\uc57d\uc804, \uc720\ub7fd \uc57d\uc804, \uc77c\ubcf8 \uc57d\uc804<\/p>\n

\ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

PVP\/VA \uacf5\uc911\ud569\uccb4\ub294 \ubd84\uc790\ub7c9\uc774 20M~50M\uc778 \uc5f4\uac00\uc18c\uc131 \uc218\uc9c0\uc785\ub2c8\ub2e4. \uc720\ub9ac \ubcc0\ud658 \uc628\ub3c4\ub294 55\u00b0C ~ 109\u00b0C\uc785\ub2c8\ub2e4.<\/p>\n

VP \ud568\ub7c9 \uc99d\uac00, \ud761\uc785<\/p>\n

\ubb3c \uc131\ub2a5\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4. \uc81c\uc57d \ub4f1\uae09 PVP-VA64 \uacf5\uc911 \ud569\uccb4\ub294 \uc77c\uc885\uc758 \uace0\uc131\ub2a5 \ud544\ub984 \ud615\uc131 \uc811\ucc29\uc81c\uc785\ub2c8\ub2e4. \ubb3c\uc5d0 \ub300\ud55c \uc6a9\ud574\ub3c4\uac00 \ub192\uace0 \ub2e4\uc591\ud568<\/p>\n

\uc720\uae30\uc6a9\ub9e4\uc640 \uc811\ucc29\uc131\uc774 \ub192\uace0 \ucc29\ud654\ub2a5\ub825\uc774 \uc788\ub2e4. \uadf8\uac83\uc758 \ub3c5\ud2b9\ud55c \ud2b9\uc131\uc740 \uc758\uc57d\ud488 \uc81c\uc81c\uc758 \uc81c\uc81c\ud654\uc5d0 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc9c0\ub9cc<\/p>\n

\ubc0f \uc0b0\ud6c4\uc7ac \ub4f1\uc73c\ub85c \ud604\uc7ac \uc8fc\ub85c \uc815\uc81c\ubc14\uc778\ub354\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\"Copolymer<\/p>\n

 <\/p>\n

\uacf5\uc911\ud569 \ubd84\uc790 \uad6c\uc870\uc2dd<\/p>\n

\uc77c\ubc18\uc801\uc73c\ub85c n-\ube44\ub2d0\ud53c\ub864\ub9ac\ub3c8\uacfc \ube44\ub2d0\uc544\uc138\ud14c\uc774\ud2b8\uc758 \uacf5\uc911\ud569\uccb4\uc758 \uc911\ub7c9\ud3c9\uade0\ubd84\uc790\ub7c9\uc740 45,000~70,000(K\uac12\uc740 \uc57d 28~70,000)\uc774\ub2e4.<\/p>\n

36). \ub54c\ubb38\uc5d0<\/p>\n

\ube44\ub2d0\uc544\uc138\ud14c\uc774\ud2b8\ub294 \uc218\uc131\uacc4\uc5d0\uc11c \uc790\uac00\uc911\ud569\uc774 \uc6a9\uc774\ud558\uc5ec \uc81c\ud488\uc744 \ubb34\uc0c9\ud22c\uba85\ud558\uac8c \ud558\uace0 \uc911\ud569\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ucf1c \uc90d\ub2c8\ub2e4.<\/p>\n

\uace0\ubd84\uc790\ub7c9 \uacf5\uc911\ud569 \uc0dd\uc131\ubb3c\uc744 \uc5bb\uae30 \uc704\ud574\uc11c\ub294 \ubc18\uc751\uc628\ub3c4\uc758 \uc870\uc808\uc774 \ud544\uc694\ud558\uba70,<\/p>\n

\uac1c\uc2dc\uc81c\uc758 \ub18d\ub3c4\uc640 \uc0ac\uc2ac \uc774\ub3d9\uc740 \ub3d9\uc2dc\uc5d0 \ube44\ub2d0 \uc544\uc138\ud14c\uc774\ud2b8\uc758 \uc790\uac00\uc751\uc9d1\uc744 \uc5b5\uc81c\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub458\uc9f8, \uc81c\ud488 \ud2b9\uc131<\/p>\n

1. \uc77c\ubc18\uc801\uc778 \uc131\uaca9<\/p>\n

\ud654\ud559\uc2dd :(C6H9NO)n x (C4H6O2)m(n\u22521.2m)<\/p>\n

CTFA \uc774\ub984: VinyPyrrolidone\/Vinyl Acetate Copolymers; \ud3f4\ub9ac(N-\ube44\ub2d0\ud53c\ub864\ub9ac\ub3c8\/\ube44\ub2d0\uc544\uc138\ud14c\uc774\ud2b8)<\/p>\n

CAS \ucf54\ub4dc : 25086-89-9<\/p>\n

\ubd84\uc790 \ubb34\uac8c:<\/p>\n

(111.1)nx (86.1)m g\/\ubab0 (n\u22521.2m)<\/p>\n

\uc678\uad00: \uc561\uccb4 \uc81c\ud488\uc740 \ub300\ubd80\ubd84 \ud22c\uba85\ud558\uace0 \ubb34\uc0c9\uc774\uac70\ub098 \uc5f0\ud55c \ub178\ub780\uc0c9\uc785\ub2c8\ub2e4. \ubd84\ub9d0\uc81c\ud488\uc740 \ud770\uc0c9\uc774\ub2e4<\/p>\n

\ub0c4\uc0c8: \uc57d\uac04 \ud2b9\uc815\ud55c \ub0c4\uc0c8<\/p>\n

\ubc00\ub3c4:1.270(25\u2103)<\/p>\n

2. \uc2e0\uccb4\uc801 \ud2b9\uc131<\/p>\n

\u2460 \uc6a9\ud574\ub3c4:<\/p>\n

\uc81c\uc57d \ub4f1\uae09 PVP-A64\ub294 \ubb3c\uc5d0 \uc27d\uac8c \uc6a9\ud574\ub418\uba70 \ub18d\ub3c4\ub294 \uc6a9\uc561\uc758 \uc810\ub3c4\uc5d0 \uc758\ud574\uc11c\ub9cc \uc81c\ud55c\ub429\ub2c8\ub2e4. \uc5d0\ud0c4\uc62c\uc5d0\uc11c\ub3c4 \ubc1c\uacac\ub420 \uc218 \uc788\uc73c\uba70,<\/p>\n

\uc774\uc18c\ud504\ub85c\ud544\uc54c\ucf54\uc62c, 1,2-\ud504\ub85c\ud544\ub80c\uae00\ub9ac\ucf5c,<\/p>\n

\uae00\ub9ac\uc138\ub9b0, \uc5fc\ud654\uba54\ud2f8\ub80c, \uc800\ubd84\uc790\ub7c9 \ud3f4\ub9ac\ube44\ub2d0 \uc54c\ucf54\uc62c(PEG), \ubb3c\uacfc \uc774\ub4e4 \uc6a9\ub9e4\uc758 \ud63c\ud569\ubb3c\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ub18d\ub3c4\ub85c \uc81c\uc870\ub429\ub2c8\ub2e4.<\/p>\n

10% \uc774\uc0c1<\/p>\n

\uc758 \uc6a9\uc561\u2026 \uadf8\ub7ec\ub098 \uc5d0\ud14c\ub974, \uace0\ub9ac\ud615 \ud0c4\ud654\uc218\uc18c, \uc9c0\ubc29\uc871 \ud0c4\ud654\uc218\uc18c, \uc9c0\ud658\uc871 \ud0c4\ud654\uc218\uc18c \ub4f1\uc5d0 \uc57d\uac04 \uc6a9\ud574\ub429\ub2c8\ub2e4.<\/p>\n

\u2461 \uc810\ub3c4<\/p>\n

25\u2103\uc5d0\uc11c \ubaa8\uc138\uad00 \uc810\ub3c4\uacc4\ub85c \uce21\uc815\ud55c \ubc14\uc640 \uac19\uc774 \uc81c\uc57d \ub4f1\uae09 PVP-A64 \uc6a9\uc561\uc758 \uc810\ub3c4\ub294 \ubb3c\ubcf4\ub2e4 \uc774\uc18c\ud504\ub85c\ud544 \uc54c\ucf54\uc62c\uc5d0\uc11c \ub354 \ub192\uc2b5\ub2c8\ub2e4(\uc544\ub798 \uadf8\ub9bc).<\/p>\n

1% \ub18d\ub3c4\uc758 \uc81c\uc57d \ub4f1\uae09 PVP-A64\ub294 \ubb3c \uc18d\uc5d0\uc11c 25\u2103\uc5d0\uc11c 1.4mPas \ubbf8\ub9cc\uc758 \uc810\ub3c4 \ubc94\uc704\ub97c \uac00\uc9c0\uba70, \uc5ec\uc804\ud788 \uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uc740 \uc810\ub3c4\ub97c \uac16\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub18d\ub3c4\uac00 10%\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n

\"Viscosity<\/p>\n

\ubb3c\uacfc \uc774\uc18c\ud504\ub85c\ud544 \uc54c\ucf54\uc62c\uc5d0\uc11c PVP-A64\uc758 \uc810\ub3c4 \ub3c4\ud45c<\/p>\n

\uc2e4\ud5d8 \uacb0\uacfc\ub294 \ubb3c(\uc57d 8mpas)\uacfc \uc774\uc18c\ud504\ub85c\ud544 \uc54c\ucf54\uc62c(\uc57d 10mpas)\uc5d0 10% \ub18d\ub3c4\uc758 \uc6a9\uc561\uc758 \uc810\ub3c4\uac00 \ub2e4\uc74c\uacfc \uac19\ub2e4\ub294 \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n

\uc57d 40 \u00b0 C\uc758 \uc628\ub3c4\uc5d0\uc11c\ub294 \uac70\uc758 \ubcc0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uacfc\ub9bd\ud654 \ubc0f \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uc2a4\ud504\ub808\uc774 \uc194\ub8e8\uc158\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub420 \uc218 \uc788\ub294 \uac83\uc774 \uc774\ub7ec\ud55c \uc7a5\uc810\uc785\ub2c8\ub2e4.<\/p>\n

20% \ub18d\ub3c4\uc758 \uc758\uc57d\ud488 \ub4f1\uae09 PVP-A64 \uc218\uc6a9\uc561\uc758 \uc810\ub3c4\ub294 \ub113\uc740 pH \ubc94\uc704\uc5d0\uc11c \ubcc0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2e4\ub978 \ubb3c\uc9c8\uacfc \ud63c\ud569\ud558\uba74<\/p>\n

\uac15\uc0b0 \ub610\ub294 \uc5fc\uae30\uc131 \uc6a9\uc561\uc758 \uacbd\uc6b0, \ube44\ub2d0 \uc544\uc138\ud14c\uc774\ud2b8\uac00 \ube44\ub204\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\ud788 \uc6a9\uc561\uc744 \uba87 \uc2dc\uac04 \ub3d9\uc548 \ubc29\uce58\ud55c \ud6c4 \uc5b4\ub290 \uc815\ub3c4\ub294 \ube44\ub204\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc6a9\uc561\uc758 \uc810\ub3c4.<\/p>\n

\u2462 \ud761\uc2b5\uc131<\/p>\n

\uc758\uc57d\ud488 \ub4f1\uae09 PVP-A64\ub294 \uc218\ubd84 \ud761\uc218\uc728\uc774 \ub0ae\uc2b5\ub2c8\ub2e4. \uc218\uc6a9\uc131 \ud3f4\ub9ac\uc5d0\ud2f8\ud53c\ub864\ub9ac\ub3c8(PVP-K \uc2dc\ub9ac\uc988)\uc774 \ud761\uc218\ud558\ub294 \ubb3c\uc758 1\/3\ub9cc \ud761\uc218\ud569\ub2c8\ub2e4.<\/p>\n

\uc544\ub798 \uadf8\ub9bc\uc5d0 \ud45c\uc2dc\ub41c \uac83\ucc98\ub7fc, \uc815\uc81c \uc81c\uc870 \ub610\ub294 \ud3a0\ub9bf\ud654 \uc6a9\uc561\uc5d0\uc11c \uc811\ucc29\uc81c\ub85c \uc0ac\uc6a9\ub420 \ub54c \uc5b4\ub290 \uc815\ub3c4\uc758 \uc218\ubd84 \ud761\uc218\uac00 \uc720\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n

\uadf8\ub7ec\ub098 \uc815\uc81c \ub4f1\uc758 \ud544\ub984\ucf54\ud305\uc81c\ub85c \uc0ac\uc6a9\ud558\uac70\ub098 \ubb3c\uc5d0 \ubbfc\uac10\ud55c \uc57d\ubb3c\uacfc \ud568\uaed8 \uc81c\uc81c\ub85c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 \uc218\ubd84\ud761\uc218\ub85c \uc778\ud574 \uc548\uc815\uc131\uc5d0 \ud574\ub97c \ub07c\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucf54\ud305\uc815 \ubc0f \ubb3c\uc5d0 \uadf9\ub3c4\ub85c \ubbfc\uac10\ud55c \uc57d\ubb3c. \ub530\ub77c\uc11c \uc81c\uc81c\uc5d0 \ubb3c\uc5d0 \ubbfc\uac10\ud55c \uc57d\ubb3c\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\ub294 \uacbd\uc6b0 \uc81c\uc57d \ub4f1\uae09 PVP-A64\ub294<\/p>\n

\ud3f4\ub9ac\uc5d0\ud2f8\ud53c\ub864\ub9ac\ub3c8 PVP-K \uc2dc\ub9ac\uc988\uc5d0 \ub300\ud55c \uc720\uc6a9\ud55c \ub300\uc548\uc785\ub2c8\ub2e4.<\/p>\n

\"Comparison<\/p>\n

\uc81c\uc57d \ub4f1\uae09 PVP-A64\ub294 \uc811\ucc29\ub825\uacfc \ud544\ub984 \ud615\uc131 \ud2b9\uc131\uc774 \uc6b0\uc218\ud560 \ubfd0\ub9cc \uc544\ub2c8\ub77c \uce5c\uc218\uc131 \ubc0f \uc18c\uc218\uc131 \ud45c\uba74\uc5d0 \ub300\ud55c \uc811\ucc29\ub825\ub3c4 \uc6b0\uc218\ud569\ub2c8\ub2e4.<\/p>\n

\uc218\ubd84 \ud761\uc218\uac00 \ub0ae\uc544 \uc758\uc57d\ud488\uc5d0 \uc801\uc6a9 \ubc94\uc704\uac00 \ub9e4\uc6b0 \ub113\uc2b5\ub2c8\ub2e4.<\/p>\n

\u2463K\uac12<\/p>\n

\uc720\ub7fd \u200b\u200b\ubc0f \ubbf8\uad6d \uc57d\uc804\uc5d0 \ub530\ub974\uba74 \ud3f4\ub9ac\uba38\uc758 \ud3c9\uade0 \ubd84\uc790\ub7c9\uc740 K \uac12\uc73c\ub85c \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. K \uac12\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4.<\/p>\n

1% \uc218\uc6a9\uc561\uc5d0\uc11c\uc758 \uc0c1\ub300\uc810\ub3c4.<\/p>\n

\ubbf8\uad6d \uc57d\uc804\uc5d0 \ub530\ub974\uba74, \uc758\uc57d\ud488 \ub4f1\uae09 PVP-A64\uc758 \uc0c1\ub300 \uc810\ub3c4\ub294 1.18-1.31\uc774\uba70, K \uac12\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4\uace0 \uacb0\ub860 \ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

25.4 \ubc0f 34.1\uc758 \ud55c\uacc4 \ub0b4\uc5d0\uc11c.<\/p>\n

IV. \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/p>\n

1. \ud654\uc7a5\ud488 \uc0b0\uc5c5:<\/p>\n

\ud654\uc7a5\ud488 \uc0dd\uc0b0\uc5d0 \uc788\uc5b4\uc11c \uc0ac\ub78c\ub4e4\uc740 \ud654\uc7a5\ud488\uc758 \uc6b0\uc218\ud55c \uc0dd\ub9ac\uc801 \uad00\uc131, \ud53c\ub9c9 \ud615\uc131, \ubd84\uc0b0 \ubc0f \ucf5c\ub85c\uc774\ub4dc \ubcf4\ud638, \ucc29\ud654, \uacb0\ud569, \uc218\ubd84\uc744 \uc774\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

\ud761\uc218\uc131, \uc720\ud654, \ub18d\ucd95, \ubcf4\uc2b5, \uc0c9\uc18c \ubd84\uc0b0, \uc790\uadf9 \uac10\uc18c, \ud5e4\uc5b4 \uc2a4\ud0c0\uc77c\ub9c1 \ubc0f \uae30\ud0c0 \uae30\ub2a5, \uc2a4\ud0c0\uc77c\ub9c1 \uac00\ub2a5<\/p>\n

\ud5e4\uc5b4\uc2a4\ud504\ub808\uc774, \ud5e4\uc5b4\ud06c\ub9bc, \ubb34\uc2a4, \ud398\uc774\uc15c \ub9c8\uc2a4\ud06c, \ubaa9\uc695, \uc0f4\ud478 \ub4f1 \ud654\uc7a5\ud488 \uc0dd\uc0b0\uc5d0 \uc5c6\uc5b4\uc11c\ub294 \uc548 \ub420 \uc6d0\ub8cc\uc785\ub2c8\ub2e4. \ud654\uc7a5\ud488 \ub4f1\uae09 \uc81c\ud488\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc2a4\ud0c0\uc77c\ub9c1\uc81c \ubc0f \ud544\ub984 \ud615\uc131\uc81c\ub85c \uc0ac\uc6a9\ub418\uba70 \ud5e4\uc5b4 \ucf00\uc5b4 \ubc0f \uc2a4\ud0c0\uc77c\ub9c1 \uc81c\ud488\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc5d0\uc5b4\ub85c\uc878 \ubc0f \ube44-\uc5d0 \ub300\ud55c \uc0c1\uc6a9\uc131\uc774 \uc6b0\uc218\ud569\ub2c8\ub2e4.<\/p>\n

\uc5d0\uc5b4\ub85c\uc878 \uc81c\ud488. VA55 \ubc0f VA37\uc740 \ud2b9\ud788 \ubd84\ucd9c \uc81c\ud488\uc5d0 \uc0ac\uc6a9\ud558\uae30\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uc561\uc0c1 \ud5e4\uc5b4\uc2a4\ud504\ub808\uc774, \ud5e4\uc5b4\uc2a4\ud504\ub808\uc774, \ubb34\uc2a4\ub294 VA64, VA73\uc744 \ucd94\ucc9c\ud569\ub2c8\ub2e4.<\/p>\n

\uc81c\ud488 \ub0b4 VP \ud568\ub7c9\uc774 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc81c\ud488\uc758 \ud761\uc2b5\uc131\uc774 \uc99d\uac00\ud558\uc5ec \ubaa8\ubc1c\uc5d0 \ub300\ud55c \uce5c\ud654\ub825\uc744 \ub192\uc77c \uc218 \uc788\uc73c\uba70,<\/p>\n

\uc774\uc628\uc131 \ud2b9\uc131\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \uccad\uc18c \ubc0f \ube57\uc9c8\uc774 \uc6a9\uc774\ud55c \uc6b0\uc218\ud55c \ud2b9\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc0ac\uc591\uc758 \uc218\uc9c0\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub2e4\uc591\ud55c \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub2e4\uc591\ud55c \uc2b5\ub3c4 \uae30\ud6c4 \uc870\uac74<\/p>\n

\ucc9c\uc5f0 \uc258\ub77d\uc73c\ub85c \ub9cc\ub4e0 \ud654\uc7a5\ud488\uc5d0 \ube44\ud574 \uc774 \uc6d0\ub8cc\ub85c \ub9cc\ub4e0 \ud654\uc7a5\ud488\uc740 \uad11\ud0dd\uc774 \uc88b\uace0 \ud0c4\ub825\uc774 \uac15\ud558\uba70 \uc0ac\uc6a9\ud558\uae30 \uc26c\uc6b4 \ud2b9\uc9d5\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ube57\uc9c8\ud558\uace0 \ubd80\uc11c\uc9c0\uc9c0 \uc54a\uace0 \ub4e4\ub7ec\ubd99\uc9c0 \uc54a\uc73c\uba70 \uc0ac\uc6a9 \ud6c4 \ud3b8\uc548\ud569\ub2c8\ub2e4.<\/p>\n

2. \uc81c\uc57d \uc0b0\uc5c5:<\/p>\n

\ud3f4\ub9ac\uba38\uc758 \ube44\ub2d0\ud53c\ub864\ub9ac\ub3c8 \uc131\ubd84\uc740 \uc81c\uc57d \ub4f1\uae09\uc758 PVPVA\uac00 \ub2e4\uc591\ud55c \uc57d\ubb3c\uc744 \uc6a9\ud574\ud560 \uc218 \uc788\uac8c \ud558\uace0, \ube44\ub2d0 \uc544\uc138\ud14c\uc774\ud2b8 \uc131\ubd84\uc740 \uc774\ub97c \ud615\uc131\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4.<\/p>\n

\uac15\ud558\uace0 \ud22c\uba85\ud55c \ud544\ub984. \ub530\ub77c\uc11c \uc815\uc81c\uc6a9 \uc811\ucc29\uc81c, \ud544\ub984 \ucf54\ud305\uc81c, \uc11c\ubc29\uc131 \uc81c\uc81c \ub4f1 \ub2e4\uc591\ud55c \uc57d\ubb3c \uc81c\ud615\uc73c\ub85c \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c, \ud3f4\ub9ac\uba38\ub294 \uc815\uc81c\uc5d0 \ud6a8\uacfc\uc801\uc778 \uc811\ucc29\uc81c\uc77c \ubfd0\ub9cc \uc544\ub2c8\ub77c \ud6a8\uacfc\uc801\uc778 \uac00\uc18c\uc81c\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uc774 \uacf5\uc911\ud569\uccb4\ub85c \uc81c\uc870\ub41c \uc815\uc81c\ub294 \ucde8\uc131\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub2e8\ud3b8\ud654\ub418\uae30 \uc27d\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc816\uc740 \uc0c1\ud0dc\uc5d0\uc11c\ub3c4 \ub2ec\ub77c\ubd99\ub294 \uacbd\ud5a5\uc774 \uc801\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubb3c\uc5d0 \ubbfc\uac10\ud55c \ubb3c\uc9c8\uc758 \uacfc\ub9bd\ud654\ub294 POvidone\uc744 \ub300\uccb4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

K \uc2dc\ub9ac\uc988 \uc81c\ud488 \ubc0f \uc140\ub8f0\ub85c\uc624\uc2a4 \uc720\ub3c4\uccb4.<\/p>\n

\ube44\uc218\uc6a9\uc131 \ubb3c\uc9c8\uacfc \ub09c\uc218\uc6a9\uc131 \ubb3c\uc9c8\uc744 \ud63c\ud569\ud558\uc5ec \uc2b5\uc2dd \ub610\ub294 \uac74\uc2dd \uacfc\ub9bd\ud654 \ubc29\ubc95\uc744 \ud1b5\ud574 \uc9c0\uc18d\uc131 \ub610\ub294 \uc11c\ubc29\uc131 \uc81c\ud488\uc744 \uc0dd\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc218\ubd88\uc6a9\uc131 \uc800\uc735\uc810 \uace0\ud615\ubb3c\uc744 \ub09c\uc218\uc6a9\uc131 \ubb3c\uc9c8 \ubc0f \uc57d\ubb3c\uacfc \ud568\uaed8 \ub179\uc5ec \ud655\uc0b0\uc744 \uc870\uc808\ud560 \uc218 \uc788\ub294 \uace0\ud615\uc81c\ud615\uc744 \ud615\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucca8\uac00\ub41c \uc57d\ubb3c\uc758 \ube44\uc728. \uc57d\ubb3c\uc740 \ubb3c\uc5d0 \ub179\uc9c0 \uc54a\ub294 \ubb3c\uc9c8\uacfc \uc218\uc6a9\uc131 \ubb3c\uc9c8\ub85c \ucf54\ud305\ub420 \uc218\ub3c4 \uc788\uc73c\uba70, \uc57d\ubb3c\uc774 \ud53c\ubd80\uc758 \uae30\uacf5\uc744 \ud1b5\ud574 \ubc29\ucd9c\ub420 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc9c0\uc18d\uc801\uc778 \uc57d\ubb3c \ubc29\ucd9c\uc758 \ubaa9\uc801\uc744 \ub2ec\uc131\ud558\uae30 \uc704\ud574 \ucf54\ud305 \ud544\ub984.<\/p>\n

\uc608\ub97c \ub4e4\uc5b4, \uc758\uc57d\ud488 \ub4f1\uae09\uc758 PVP-VA64\ub294 \uc720\uae30\uc6a9\ub9e4\uc5d0 \uc6a9\ud574\ub418\uae30 \ub54c\ubb38\uc5d0 \uc57d\ubb3c \ubc29\ucd9c\uc744 \ubc29\ud574\ud558\ub294 \uc218\ubd88\uc6a9\uc131 \uc131\ubd84\uc744 \uc6a9\ud574\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uace0\ubd84\uc790\uc640 \ud568\uaed8 \uc720\uae30\uc6a9\ub9e4\uc5d0 \uc6a9\ud574\ub418\uba70, \uc57d\ubb3c \uc8fc\ubcc0\uc5d0 \ud615\uc131\ub41c \ub9e4\ud2b8\ub9ad\uc2a4\uac00 \uc57d\ubb3c\uc758 \ud655\uc0b0\uc774\ub098 \uc6a9\ud574 \uc18d\ub3c4\ub97c \uc870\uc808\ud558\ub294 \uc5ed\ud560\uc744 \ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n

\uc57d\ubb3c\uacfc \ud568\uaed8 \uc0ac\uc6a9\ub418\ub294 \uc758\uc57d \ub4f1\uae09 PVP-A64\uc758 \uc608\uac00 \ubcf4\uace0\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

Introduction of PVPVA copolymer: PVPVA copolymer is a water-soluble copolymer synthesized from monomer N-ethylene-pyrrolidone (NVP) and vinyl acetate (VAc) in a certain proportion Polymer, divided into cosmetic grade and pharmaceutical grade two grades, of which pharmaceutical grade products are mainly PVP-VA64, in the United States Pharmacopoeia, European Pharmacopoeia and Japanese pharmacopoeia Included. PVP\/VA copolymers are thermoplastic resins with molecular weights ranging from 20M to 50M. Glass conversion temperature from 55\u00b0C to 109\u00b0C, with the increase of VP content, suction Water performance increases. Pharmaceutical grade PVP-VA64 copolymer is a kind of high performance film forming adhesive. High solubility in water and a variety of organic solvents, high adhesion, and has the ability to complex. Although its unique properties can be used in the formulation of pharmaceutical preparations and afterbirth materials, it is currently mainly used as a tablet binder.     Copolymer molecular structure formula In general, the weight average molecular\u2026<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"attr":[109],"class_list":["post-1742","post","type-post","status-publish","format-standard","hentry","category-problems"],"_links":{"self":[{"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/posts\/1742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/comments?post=1742"}],"version-history":[{"count":5,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/posts\/1742\/revisions"}],"predecessor-version":[{"id":1750,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/posts\/1742\/revisions\/1750"}],"wp:attachment":[{"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/media?parent=1742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/categories?post=1742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/tags?post=1742"},{"taxonomy":"attr","embeddable":true,"href":"https:\/\/www.yearnintl.com\/ko\/wp-json\/wp\/v2\/attr?post=1742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}