study on the reuse of pulp and polyethylene recovered from wasted milk pack 2003. 1...
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Study on the Reuse of Pulp and Polyethylene Recovered from Wasted Milk Pack
2003. 1
고분자공학과
박 흥 조
Waste Milk Pack Pulp 80%polyethylene (Lamination) 20%
Chemical Reagents
Pulp Disk Refining Cleaner Screening
Pulp PE Cracker
PE
Treatment onCommission
Burning
Stuff Box
Dewatering Drying
Recycled Fine Pulp
O
CH2OH
H
H
H
OH
OH
HHO
CH2OH
HH
OH
H
OH
OH
HH
O
O
O
CH2OH
H
H
H
OH
OH
HH
O
O
CH2OH
H
H
H
OH
OH
H H
OH
n
Pulp
-Cellulose
HemicelluloseLignin
Cellulose ester: cellulose acetatecellulose sulfatecellulose nitrate
NaOH
Cellulose ether: methyl celluloseethyl cellulosecarboxymethyl cellulose (CMC)
etc: cyanoethylcellulose cellulose ether from reaction with epoxide graft compound with cellulose or its derivatives
Cellulose
NaOH solution
Na-cellulose Cellulose Derivatives
Sodiumchloroaceticchloride
Carboxymethylcellulose,Sodium Salt
(CMC)
Polymer BlendGraft polymerization
Hygroscopic Polymer
Food and pharmaceutical productsDyestuff printing pastePaper sizingCosmeticsBinder in enamels
HygroscopicPolymer
Uses위생재 , 농업 , 원예 , 식품 유통 , 토목 , 건축 ,화장품 , 의료용 , 도료 , 접착
Synthesis
Graft Polymerization
Cross-linked Polymerization
3-Dimension Reaction of Hygroscopic Polymer
Self Crosslinked Polymerization
* Cellulose 계 관련 고흡수성 고분자 화합물(1) Cellulose/PAA (2) CMC/ 자기가교 또는 가열불용화(3) 재생 cellulose 섬유 /Na-PAN
Waste Milk Pack
chemical reagent
diskrefiner Bau cleaner Lamot screen
16~20%sodium hydroxide
polyethylene Pulp (Na-cellulose)
MCAA
CMCPatent Subject: 카르복시메틸셀룰로오스의 제조방법Patent Applicant No.: 제 2002-0032276 호
CMC 합성 및 결과
Recycled Pulp Na-Cellulose CMC
MCAA
Carboxymethyl Cellulose, Sodium Salt
Reaction Conditionsmolar ratio : Na-cellulose:Cl-CH2COONa = 1 : 2.5reaction temp : 78~80Creaction time : 2.5hrsolvent : isopropyl alcohol : Water
Results :viscosity : 0.053 ~ 0.210 mPa·sDS : 0.45 ~ 1.20
Com
mer
cial
CM
CS
ynth
etic
CM
C
SEM Micrographs XRD Patterns
Endotherm of Synthetic SCMC
PE film
PE pellet Product
Alkali, Acid treatmentWashing
Melt IndexMFR Mean Value= 2.636 ± 5210 g/minApparent Viscosity= 7039.97 Pa·s
축산폐기물
미분해물 분해물
SCMC
PAA
SCMC, PAA 와 축산폐기물의 다기능성부여
배양
분해단백질활성도
미생물체의선정
* Blend* Coating
1. Protease 생성균주로부터 조효소액의 추출
a. Aspergillus oryzeab. Goldc. Dand. Aspergillus awamori
e. Aspergillus nigerf. macrosporusg. XP-1, XP-2 (powder)h. XL-1 (liquid)
Dan Gold
2. 추출효소반응에 의한 활성도 및 분해의 적정 pH
Future Work 축산폐기물SCMC
Water Absorbancy(g H2O/g)a) Blend
b) Coating
PAA
pH4 pH7 PH101분말 0.24 0.95 0.6132분말 0.5341 1.162 0.91
액체 0.255 0.89 0.82oryzae 0.524 1.062 0.84gold 0.542 0.885 0.835
macrosporus 0.679 0.277 0.206단 0.736 1.032 0.803
awamori 0.854 0.361 0.296blank 0.34 0.431 0.481
sample 12시간 반응후 흡광도 측정
0
0.2
0.4
0.6
0.8
1
1.2
1.4
효소명
O.D
pH4
pH7PH10