{"id":10578,"date":"2026-09-07T11:03:45","date_gmt":"2026-09-07T04:03:45","guid":{"rendered":"https:\/\/pcecatlam.vn\/?p=10578"},"modified":"2026-09-07T11:03:46","modified_gmt":"2026-09-07T04:03:46","slug":"2-hydroxyethyl-acrylate-hea","status":"publish","type":"post","link":"https:\/\/pcecatlam.vn\/km\/2-hydroxyethyl-acrylate-hea\/","title":{"rendered":"2-Hydroxyethyl Acrylate (HEA)"},"content":{"rendered":"

2-Hydroxyethyl Acrylate (vi\u1ebft t\u1eaft HEA)<\/a><\/strong> l\u00e0 monomer acrylate mang \u0111\u1ed3ng th\u1eddi hai nh\u00f3m ch\u1ee9c: n\u1ed1i \u0111\u00f4i acrylate c\u00f3 kh\u1ea3 n\u0103ng tr\u00f9ng h\u1ee3p v\u00e0 nh\u00f3m hydroxyl (\u2013OH) c\u00f3 kh\u1ea3 n\u0103ng kh\u00e2u m\u1ea1ch. Ch\u00ednh c\u1ea5u tr\u00fac l\u01b0\u1ee1ng ch\u1ee9c n\u00e0y gi\u00fap HEA tr\u1edf th\u00e0nh nguy\u00ean li\u1ec7u quan tr\u1ecdng trong t\u1ed5ng h\u1ee3p ph\u1ee5 gia si\u00eau d\u1ebbo polycarboxylate (PCE), nh\u0169 t\u01b0\u01a1ng acrylic, keo d\u00e1n, s\u01a1n ph\u1ee7 \u0111\u00f3ng r\u1eafn nhi\u1ec7t v\u00e0 nh\u1ef1a \u0111\u00f3ng r\u1eafn UV.<\/p>\n\n\n\n

C\u00e1t L\u00e2m cung c\u1ea5p HEA tinh khi\u1ebft \u226598%, \u0111\u00f3ng phuy nh\u1ef1a PE \/ IBC \/ ISO tank, k\u00e8m \u0111\u1ea7y \u0111\u1ee7 TDS, MSDS, CO, CQ cho kh\u00e1ch h\u00e0ng s\u1ea3n xu\u1ea5t trong n\u01b0\u1edbc.<\/p>\n\n\n\n

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2-Hydroxyethyl Acrylate HEA do C\u00e1t L\u00e2m ph\u00e2n ph\u1ed1i<\/figcaption><\/figure>\n\n\n\n

HEA l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

HEA l\u00e0 este c\u1ee7a axit acrylic v\u1edbi ethylene glycol, t\u00ean g\u1ecdi kh\u00e1c l\u00e0 2-Hydroxyethyl prop-2-enoate ho\u1eb7c Ethylene glycol monoacrylate. \u1ede \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng, HEA l\u00e0 ch\u1ea5t l\u1ecfng trong su\u1ed1t, kh\u00f4ng m\u00e0u, kh\u00f4ng l\u1eabn t\u1ea1p ch\u1ea5t c\u01a1 h\u1ecdc, tan t\u1ed1t trong dung m\u00f4i h\u1eefu c\u01a1 v\u00e0 c\u00f3 \u00e1i l\u1ef1c cao v\u1edbi n\u01b0\u1edbc (h\u1ec7 s\u1ed1 ph\u00e2n b\u1ed1 octanol\/n\u01b0\u1edbc \u20130,21).<\/p>\n\n\n\n

\u0110i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ee7a HEA so v\u1edbi c\u00e1c monomer acrylate th\u00f4ng d\u1ee5ng nh\u01b0 BA (Butyl Acrylate) hay 2-EHA (2-Ethylhexyl Acrylate) n\u1eb1m \u1edf nh\u00f3m hydroxyl t\u1ef1 do. Nh\u00f3m \u2013OH n\u00e0y kh\u00f4ng tham gia ph\u1ea3n \u1ee9ng tr\u00f9ng h\u1ee3p g\u1ed1c t\u1ef1 do m\u00e0 \u0111\u01b0\u1ee3c “gi\u1eef l\u1ea1i” tr\u00ean m\u1ea1ch polymer, t\u1ea1o ra c\u00e1c \u0111i\u1ec3m ph\u1ea3n \u1ee9ng \u0111\u1ec3 kh\u00e2u m\u1ea1ch v\u1ec1 sau v\u1edbi isocyanate (h\u1ec7 PU 2 th\u00e0nh ph\u1ea7n), nh\u1ef1a melamine ho\u1eb7c amino resin. Nh\u1edd v\u1eady, ch\u1ec9 c\u1ea7n \u0111\u01b0a v\u00e0o c\u00f4ng th\u1ee9c m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf HEA c\u0169ng c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n r\u00f5 r\u1ec7t \u0111\u1ed9 b\u00e1m d\u00ednh, \u0111\u1ed9 b\u1ec1n h\u00f3a ch\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n th\u1eddi ti\u1ebft c\u1ee7a m\u00e0ng polymer.<\/p>\n\n\n\n

Nh\u00f3m hydroxyl c\u0169ng l\u00e0m t\u0103ng t\u00ednh \u01b0a n\u01b0\u1edbc c\u1ee7a copolymer, gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng h\u1ee3p gi\u1eefa c\u00e1c monomer k\u1ef5 n\u01b0\u1edbc v\u00e0 pha n\u01b0\u1edbc \u2014 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng khi t\u1ed5ng h\u1ee3p nh\u0169 t\u01b0\u01a1ng acrylic g\u1ed1c n\u01b0\u1edbc.<\/p>\n\n\n\n

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt HEA<\/strong><\/p>\n\n\n\n

Ch\u1ec9 ti\u00eau<\/strong><\/td>Gi\u00e1 tr\u1ecb<\/strong><\/td><\/tr><\/thead>
T\u00ean s\u1ea3n ph\u1ea9m<\/td>2-Hydroxyethyl Acrylate (HEA)<\/td><\/tr>
T\u00ean kh\u00e1c<\/td>2-Hydroxyethyl prop-2-enoate<\/td><\/tr>
CAS No.<\/td>818-61-1<\/td><\/tr>
EC No.<\/td>212-454-9<\/td><\/tr>
M\u00e3 HS<\/td>2916.12.90.90<\/td><\/tr>
C\u00f4ng th\u1ee9c ph\u00e2n t\u1eed<\/td>C\u2085H\u2088O\u2083<\/td><\/tr>
Kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed<\/td>116,12 g\/mol<\/td><\/tr>
Ngo\u1ea1i quan<\/td>Ch\u1ea5t l\u1ecfng trong su\u1ed1t, kh\u00f4ng m\u00e0u, kh\u00f4ng t\u1ea1p ch\u1ea5t c\u01a1 h\u1ecdc<\/td><\/tr>
\u0110\u1ed9 tinh khi\u1ebft (W.%)<\/td>\u2265 98%<\/td><\/tr>
H\u00e0m l\u01b0\u1ee3ng monoester (W.%)<\/td>\u2265 93%<\/td><\/tr>
H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc (W.%)<\/td>\u2264 0,2%<\/td><\/tr>
Ch\u1ec9 s\u1ed1 axit (W.%)<\/td>\u2264 0,2%<\/td><\/tr>
M\u00e0u (Hazen)<\/td>\u2264 25<\/td><\/tr>
Ch\u1ea5t \u1ee9c ch\u1ebf tr\u00f9ng h\u1ee3p<\/td>MEHQ (CAS 150-76-5), 250 \u00b1 50 ppm<\/td><\/tr>
T\u1ef7 tr\u1ecdng<\/td>1,109 g\/cm\u00b3<\/td><\/tr>
\u0110\u1ed9 nh\u1edbt (20 \u00b0C)<\/td>5,34 mPa\u00b7s<\/td><\/tr>
Ch\u1ec9 s\u1ed1 kh\u00fac x\u1ea1 (20 \u00b0C)<\/td>1,448<\/td><\/tr>
\u0110i\u1ec3m s\u00f4i<\/td>82 \u00b0C t\u1ea1i 6,66 kPa<\/td><\/tr>
\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>\u201370 \u00b0C<\/td><\/tr>
\u0110i\u1ec3m ch\u1edbp ch\u00e1y<\/td>104 \u00b0C (c\u1ed1c h\u1edf) \/ 99 \u00b0C (c\u1ed1c k\u00edn)<\/td><\/tr>
Nhi\u1ec7t \u0111\u1ed9 t\u1ef1 b\u1ed1c ch\u00e1y<\/td>\u2265 300 \u00b0C<\/td><\/tr>
Nhi\u1ec7t \u0111\u1ed9 ph\u00e2n h\u1ee7y<\/td>\u2265 300 \u00b0C<\/td><\/tr>
\u00c1p su\u1ea5t h\u01a1i<\/td>0,0523 mmHg<\/td><\/tr>
T\u1ed1c \u0111\u1ed9 bay h\u01a1i<\/td>\u2264 0,01 kg\/s<\/td><\/tr>
Gi\u1edbi h\u1ea1n n\u1ed5 trong kh\u00f4ng kh\u00ed<\/td>t\u1eeb 2,5 %V<\/td><\/tr>
\u0110\u1ed9 tan<\/td>Tan trong dung m\u00f4i h\u1eefu c\u01a1<\/td><\/tr>
Kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi<\/td>Ch\u1ea5t oxy h\u00f3a \u2013 kh\u1eed m\u1ea1nh, axit, peroxide, mu\u1ed1i kim lo\u1ea1i n\u1eb7ng<\/td><\/tr>
Quy c\u00e1ch \u0111\u00f3ng g\u00f3i<\/td>Phuy nh\u1ef1a PE, IBC, phuy s\u1eaft l\u00f3t Teflon, ISO tank<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

S\u1ed1 li\u1ec7u theo TDS c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. Vui <\/em>l\u00f2ng li\u00ean h\u1ec7 C\u00e1t L\u00e2m \u0111\u1ec3 nh\u1eadn CoA c\u1ee7a t\u1eebng l\u00f4 h\u00e0ng c\u1ee5 th\u1ec3.<\/em><\/p>\n\n\n\n

\u1ee8ng d\u1ee5ng c\u1ee7a HEA<\/strong><\/p>\n\n\n\n

1. T\u1ed5ng h\u1ee3p ph\u1ee5 gia si\u00eau d\u1ebbo polycarboxylate (PCE)<\/strong><\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 \u1ee9ng d\u1ee5ng c\u00f3 gi\u00e1 tr\u1ecb nh\u1ea5t c\u1ee7a HEA t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. Trong c\u00f4ng ngh\u1ec7 t\u1ed5ng h\u1ee3p PCE, HEA \u0111\u01b0\u1ee3c \u0111\u1ed3ng tr\u00f9ng h\u1ee3p c\u00f9ng axit acrylic (AA), acrylamide (AM) v\u00e0 c\u00e1c \u0111\u1ea1i ph\u00e2n t\u1eed polyether (TPEG\/HPEG\/IPEG) \u0111\u1ec3 t\u1ea1o copolymer d\u1ea1ng r\u0103ng l\u01b0\u1ee3c.<\/p>\n\n\n\n

Vai tr\u00f2 c\u1ee7a HEA l\u00e0 monomer este ch\u1ee9c n\u0103ng c\u00f3 t\u00e1c d\u1ee5ng duy tr\u00ec \u0111\u1ed9 s\u1ee5t (slump retention)<\/strong>. Nh\u00f3m este trong m\u1ea1ch copolymer th\u1ee7y ph\u00e2n ch\u1eadm trong m\u00f4i tr\u01b0\u1eddng ki\u1ec1m cao c\u1ee7a h\u1ed3 xi m\u0103ng (pH \u2265 12,5), gi\u1ea3i ph\u00f3ng d\u1ea7n c\u00e1c nh\u00f3m carboxyl. Nh\u1edd c\u01a1 ch\u1ebf “gi\u1ea3i ph\u00f3ng ch\u1eadm” n\u00e0y, polymer kh\u00f4ng h\u1ea5p ph\u1ee5 \u1ed3 \u1ea1t l\u00ean h\u1ea1t xi m\u0103ng ngay t\u1eeb \u0111\u1ea7u m\u00e0 ti\u1ebfp t\u1ee5c cung c\u1ea5p kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n theo th\u1eddi gian \u2014 gi\u00fap b\u00ea t\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 s\u1ee5t v\u00e0 t\u00ednh c\u00f4ng t\u00e1c l\u00e2u h\u01a1n, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch v\u1edbi b\u00ea t\u00f4ng th\u01b0\u01a1ng ph\u1ea9m v\u1eadn chuy\u1ec3n xa ho\u1eb7c thi c\u00f4ng trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 \u1edf Vi\u1ec7t Nam.<\/p>\n\n\n\n

C\u00e1c nghi\u00ean c\u1ee9u tr\u00ean h\u1ec7 copolymer b\u1ed1n c\u1ea5u t\u1eed AA\/AM\/HPEG\/2-HEA cho th\u1ea5y: \u1edf c\u00f9ng t\u1ef7 l\u1ec7 mol polyether, copolymer c\u00f3 ch\u1ee9a nh\u00f3m hydroxyethyl acrylate cho hi\u1ec7u qu\u1ea3 duy tr\u00ec \u0111\u1ed9 s\u1ee5t t\u1ed1t nh\u1ea5t, v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n \u1edf tu\u1ed5i 28 ng\u00e0y v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi copolymer hai v\u00e0 ba c\u1ea5u t\u1eed. C\u1ea7n l\u01b0u \u00fd r\u1eb1ng c\u00f9ng nghi\u00ean c\u1ee9u n\u00e0y ghi nh\u1eadn t\u1ed1c \u0111\u1ed9 ph\u00e1t tri\u1ec3n c\u01b0\u1eddng \u0111\u1ed9 \u1edf tu\u1ed5i 1\u20133 ng\u00e0y ch\u1eadm h\u01a1n \u2014 \u0111\u00e2y l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m chung c\u1ee7a nh\u00f3m PCE duy tr\u00ec \u0111\u1ed9 s\u1ee5t v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc khi thi\u1ebft k\u1ebf c\u1ea5p ph\u1ed1i cho c\u1ea5u ki\u1ec7n \u0111\u00f2i h\u1ecfi th\u00e1o c\u1ed1p pha s\u1edbm.<\/p>\n\n\n\n

2. Nh\u0169 t\u01b0\u01a1ng acrylic v\u00e0 s\u01a1n ph\u1ee7<\/strong><\/p>\n\n\n\n

HEA \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m monomer ch\u1ee9c n\u0103ng trong:<\/p>\n\n\n\n