KR20200073751A - 항균성 고흡수성 수지의 제조 방법 - Google Patents
항균성 고흡수성 수지의 제조 방법 Download PDFInfo
- Publication number
- KR20200073751A KR20200073751A KR1020180162286A KR20180162286A KR20200073751A KR 20200073751 A KR20200073751 A KR 20200073751A KR 1020180162286 A KR1020180162286 A KR 1020180162286A KR 20180162286 A KR20180162286 A KR 20180162286A KR 20200073751 A KR20200073751 A KR 20200073751A
- Authority
- KR
- South Korea
- Prior art keywords
- weight
- parts
- superabsorbent polymer
- surface crosslinking
- antimicrobial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000000034 method Methods 0.000 title description 38
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- 238000004132 cross linking Methods 0.000 claims abstract description 91
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- 239000003431 cross linking reagent Substances 0.000 claims description 27
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- FAIDIRVMPHBRLT-UHFFFAOYSA-N propane-1,2,3-triol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OCC(O)CO FAIDIRVMPHBRLT-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- C—CHEMISTRY; METALLURGY
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Abstract
Description
| 배양 시간 (h) |
CFU/ml | Dust number | A/C효율 (%) |
CRC (g/g) |
AUP (g/g) |
GPUP (ⅹ10-13 m2) |
|
| 대조군 |
0 (초기 접종 균수) |
3100 | - | - | - | - | - |
| 12 | 8,600,000,000 | - | - | - | - | - | |
| 실시예 1 | 12 | 450,000 | 1.0 | 90 | 27.6 | 20.4 | 23 |
| 실시예 2 | 12 | 500,000 | 1.0 | 90 | 28.1 | 20.3 | 24 |
| 실시예 3 | 12 | 450,000 | 1.0 | 90 | 28.0 | 20.7 | 24 |
| 실시예 4 | 12 | 1,500,000 | 1.0 | 90 | 28.2 | 20.4 | 23 |
| 실시예 5 | 12 | 2,000,000 | 1.0 | 90 | 28.1 | 20.4 | 23 |
| 실시예 6 | 12 | 1,400,000 | 1.0 | 90 | 28.0 | 20.5 | 24 |
| 실시예 7 | 12 | 400,000 | 1.0 | 90 | 27.0 | 20.0 | 22 |
| 실시예 8 | 12 | 450,000 | 1.0 | 90 | 27.4 | 20.4 | 23 |
| 실시예 9 | 12 | 550,000 | 1.0 | 90 | 28.1 | 20.3 | 24 |
| 비교예 1 | 12 | 14,000,000,000 | 1.1 | 30 | 28.5 | 20.2 | 21 |
| 비교예 2 | 12 | 3,900,000 | 18 | 16 | 27.6 | 19.0 | 20 |
| 비교예 3 | 12 | 23,000,000 | 1.1 | 22 | 27.5 | 19.2 | 20 |
| 비교예 4 | 12 | 1,500,000 | 1.0 | 80 | 28.4 | 20.1 | 23 |
| 비교예 5 | 12 | 650,000 | 1.0 | 85 | 28.6 | 20.2 | 24 |
| 비교예 6 | 12 | 1,200,000 | 2.0 | 80 | 26.4 | 18.1 | 20 |
| 비교예 7 | 12 | 900,000 | 3.0 | 75 | 24.0 | 17.0 | 19 |
Claims (10)
- 내부 가교제의 존재 하에, 적어도 일부가 중화된 산성기를 갖는 수용성 에틸렌계 불포화 단량체를 가교 중합하여 가교 중합체를 포함하는 함수겔 중합체를 형성하는 단계;
상기 함수겔 중합체를 건조, 분쇄 및 분급하여 베이스 수지 분말을 형성하는 단계; 및
비에폭시계 표면 가교제, 항균제 및 물을 포함하는 표면 가교액을 상기 베이스 수지 분말과 혼합하고 반응시켜, 표면 가교층을 형성하는 단계를 포함하는 항균성 고흡수성 수지의 제조 방법으로서,
상기 제조방법은, 상기 표면 가교층의 형성시 표면 가교액 중에 시트르산을 추가로 투입하여 표면 가교층을 형성하거나; 또는 상기 표면 가교층의 형성 후 시트르산을 추가로 투입하여 상기 표면 가교층이 형성된 고흡수성 수지와 건식 혼합하는 단계를 더 포함하며,
상기 시트르산은 베이스 수지 분말 총 중량에 대하여 0.1 내지 3중량부의 함량으로 투입되는,
하기 수학식 1에 따라 계산되는 가압 하 겔 투과율(GPUP)이 22 내지 24 ⅹ 10E-13 m2이고, 하기 수학식 5에 따라 계산되는 안티케이킹 효율이 90% 이상인, 항균성 고흡수성 수지의 제조 방법.
[수학식 1]
GPUP (ⅹ10E-13m2)=(Kⅹηⅹ10/10000) ⅹ1000000
상기 수학식 1에서, η은 0.9중량% 염화나트륨의 점도 0.0009 Pa·s이고,
K는 하기 수학식 2에 따라 계산되는 값이며,
[수학식 2]
K(ⅹ10E-7cm3s/g)=(Fg ⅹ t / ρⅹ A ⅹ P)
상기 수학식 2에서, Fg 는 시간 당 겔을 통과한 생리식염수 무게 (g/s)이고,
t(cm) 는 겔 두께 ((t1-t0)/10) 이며
ρ는 0.9중량% 염화나트륨의 밀도 1g/cm3이고,
A는 GPUP 측정에 사용된 실린더 면적 28.27cm2 이고,
P는 정수압 4920 dyn/cm2이며,
상기 to, 및 t1는, 2.1 kPa(0.3 psi)의 하중을 부여하는 피스톤이 구비된 실린더에 고흡수성 수지 1.8±0.05g을 넣고, 0.9중량%의 염화나트륨 수용액으로 구성된 생리 식염수를 부어 2.1 kPa(0.3 psi)의 하중 하에 1시간 동안 흡수하도록 하고, 0.9중량%의 염화나트륨 수용액으로 구성된 생리식염수를 흘려보내면서 첫 한 방울이 팽윤된 겔을 통과한 시점부터 300초간 통과된 생리식염수의 무게를 측정할 때, t0는 실험 전 피스톤의 높이이고, t1은 300초간 생리 식염수를 통과한 후 피스톤의 높이이며,
[수학식 5]
안티케이킹 효율(%) = [S1/(S2-W1) + S1] ⅹ 100
상기 수학식 5에서, W1은 안티케이킹 효율 측정시 사용한 지름 9cm Petri-dish 무게이고, S1은 상기 Petri-dish에 항균성 고흡수성 수지의 시료 2±0.01g을 담고, 온도 40℃, 습도 80% RH의 항온항습 챔버에 넣어 10분간 방치한 후, Petri-dish를 꺼내 A4 용지에 뒤집어 5분간 방치하고, 5분 후 바닥에 떨어진 시료의 무게이고, S2는 이때의 Petri-dish 의 무게이다.
- 제1항에 있어서,
상기 시트르산은 상기 표면 가교층의 형성시, 베이스 수지 분말 100중량부에 대하여 0.5 내지 2중량부의 함량으로 표면 가교액 중에 추가 투입되는, 항균성 고흡수성 수지의 제조방법.
- 제1항에 있어서,
상기 시트르산은 상기 표면 가교층 형성 단계 후, 표면 가교층이 형성된 고흡수성 수지 100중량부에 대하여 0.5 내지 3중량부로 투입되는, 항균성 고흡수성 수지의 제조방법.
- 제1항에 있어서,
상기 표면 가교액은 베이스 수지 분말 100중량부에 대하여 비에폭시계 표면 가교제 0.01 내지 5중량부, 항균제 0.1 내지 1.5중량부 및 물 0.5 내지 10중량부로 포함하는, 항균성 고흡수성 수지의 제조방법.
- 제1항에 있어서,
상기 항균제는 에틸렌디아민-N,N,N',N'-테트라아세트산 또는 이의 염을 포함하는, 항균성 고흡수성 수지의 제조 방법.
- 제1항에 있어서,
상기 항균제는 에틸렌디아민-N,N,N',N'-테트라아세트산, 4나트륨 염 (EDTA-4Na)를 포함하는, 항균성 고흡수성 수지의 제조 방법.
- 제 1 항에 있어서,
상기 비에폭시계 표면 가교제는 탄소수 3 내지 20의 다가 알코올 화합물, 폴리아민 화합물, 할로 에폭시 화합물 및 이의 축합 산물, 옥사졸린계 화합물, 모노-, 디- 및 폴리-옥사졸리디논 화합물, 환상 우레아 화합물, 다가 금속염 및 탄소수 2 내지 5의 알킬렌 카보네이트 화합물로 이루어진 군에서 선택되는 1종 이상의 화합물을 포함하는, 항균성 고흡수성 수지의 제조 방법.
- 제 1 항에 있어서,
상기 표면 가교층의 형성 단계는 170 내지 200℃의 온도에서 수행되는, 항균성 고흡수성 수지의 제조 방법.
- 제 1 항에 있어서,
상기 수용성 에틸렌계 불포화 단량체는 아크릴산, 메타크릴산, 무수말레인산, 푸말산, 크로톤산, 이타콘산, 2-아크릴로일에탄 술폰산, 2-메타크릴로일에탄술폰산, 2-(메트)아크릴로일프로판술폰산, 또는 2-(메트)아크릴아미드-2-메틸 프로판 술폰산의 음이온성 단량체와 이의 염; (메트)아크릴아미드, N-치환(메트)아크릴레이트, 2-히드록시에틸(메트)아크릴레이트, 2-히드록시프로필(메트)아크릴레이트, 메톡시폴리에틸렌글리콜(메트)아크릴레이트 또는 폴리에틸렌 글리콜(메트)아크릴레이트의 비이온계 친수성 함유 단량체; 및 (N,N)-디메틸아미노에틸(메트)아크릴레이트 또는 (N,N)-디메틸아미노프로필(메트)아크릴아미드의 아미노기 함유 불포화 단량체와 그의 4급화물;로 이루어진 군에서 선택된 1종 이상을 포함하는, 항균성 고흡수성 수지의 제조 방법.
- 제1항에 있어서,
상기 항균성 고흡수성 수지는 프로테우스 미라빌리스(Proteus mirabilis) 박테리아 균의 증식을 억제하는, 항균성 고흡수성 수지의 제조 방법.
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