Study on the Reuse of Pulp and Polyethylene Recovered from Wasted Milk Pack 고분자공학과 박 흥 조

Waste Milk Pack Pulp 80% polyethylene (Lamination) 20%  Chemical Reagents Pulp  Disk Refining  Cleaner  Screening Pulp PE Cracker PE Treatment on Commission Burning Stuff Box  Dewatering  Drying Recycled Fine Pulp

Pulp  -Cellulose Hemicellulose Lignin Cellulose ester: cellulose acetate cellulose sulfate cellulose nitrate NaOH Cellulose ether: methyl cellulose ethyl cellulose carboxymethyl cellulose (CMC) etc: cyanoethylcellulose cellulose ether from reaction with epoxide graft compound with cellulose or its derivatives

Cellulose NaOH solution Na-celluloseCellulose Derivatives Sodiumchloroaceticchloride Carboxymethylcellulose, Sodium Salt (CMC) Polymer Blend Graft polymerization Hygroscopic Polymer Food and pharmaceutical products Dyestuff printing paste Paper sizing Cosmetics Binder in enamels

Hygroscopic Polymer Uses 위생재, 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 diskrefinerBau cleanerLamot screen 16~20% sodium hydroxide polyethylenePulp (Na-cellulose) MCAA CMC Patent Subject: 카르복시메틸셀룰로오스의 제조방법 Patent Applicant No.: 제 호

CMC 합성 및 결과 Recycled PulpNa-Cellulose CMC MCAA Carboxymethyl Cellulose, Sodium Salt Reaction Conditions molar ratio: Na-cellulose:Cl-CH 2 COONa = 1 : 2.5 reaction temp: 78~80  C reaction time: 2.5hr solvent: isopropyl alcohol : Water Results : viscosity : ~ mPa·s DS : 0.45 ~ 1.20

Commercial CMC Synthetic CMC SEM MicrographsXRD Patterns

Endotherm of Synthetic SCMC

PE film PE pellet Product Alkali, Acid treatment Washing Melt Index MFR Mean Value = ± 5210 g/min Apparent Viscosity = Pa·s

축산폐기물 미분해물분해물 SCMC PAA SCMC, PAA 와 축산폐기물의 다기능성부여 배양 분해단백질 활성도 미생물체의 선정 * Blend * Coating

1. Protease 생성균주로부터 조효소액의 추출 a. Aspergillus oryzea b. Gold c. Dan d. Aspergillus awamori e. Aspergillus niger f. macrosporus g. XP-1, XP-2 (powder) h. XL-1 (liquid) Dan Gold

2. 추출효소반응에 의한 활성도 및 분해의 적정 pH Future Work 축산폐기물 SCMC Water Absorbancy (g H 2 O/g) a) Blend b) Coating PAA