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2003. 1. Study on the Reuse of Pulp and Polyethylene Recovered from Wasted Milk Pack. 고분자공학과 박 흥 조. Pulp 80% polyethylene (Lamination) 20%. Waste Milk Pack. Chemical Reagents. PE. Pulp. Disk Refining Cleaner Screening. Treatment on Commission. Burning. Pulp. PE Cracker.

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slide1

2003. 1

Study on the Reuse of Pulp and Polyethylene

Recovered from Wasted Milk Pack

고분자공학과

박 흥 조

slide2

Pulp 80%

polyethylene (Lamination) 20%

Waste Milk Pack

  • Chemical Reagents

PE

Pulp

  • Disk Refining
  • Cleaner
  • Screening

Treatment on

Commission

Burning

Pulp

PE Cracker

Stuff Box

  • Dewatering
  • Drying

Recycled Fine Pulp

slide3

a-Cellulose

Cellulose ester: cellulose acetate

cellulose sulfate

cellulose nitrate

Pulp

Cellulose ether: methyl cellulose

ethyl cellulose

carboxymethyl cellulose (CMC)

NaOH

Hemicellulose

Lignin

etc: cyanoethylcellulose

cellulose ether from reaction with epoxide

graft compound with cellulose or its derivatives

slide4

Cellulose

NaOH solution

Na-cellulose

Cellulose Derivatives

Sodiumchloroaceticchloride

Food and pharmaceutical products

Dyestuff printing paste

Paper sizing

Cosmetics

Binder in enamels

Carboxymethylcellulose,

Sodium Salt

(CMC)

Polymer Blend

Graft polymerization

Hygroscopic Polymer

slide5

위생재, 농업, 원예, 식품 유통, 토목, 건축,

화장품, 의료용, 도료, 접착

Uses

Hygroscopic

Polymer

Graft Polymerization

Cross-linked Polymerization

Synthesis

3-Dimension Reaction

of Hygroscopic Polymer

Self Crosslinked Polymerization

* Cellulose계 관련 고흡수성 고분자 화합물

(1) Cellulose/PAA

(2) CMC/자기가교 또는 가열불용화

(3) 재생 cellulose 섬유/Na-PAN

slide6

chemical reagent

Waste

Milk Pack

diskrefiner

Bau cleaner

Lamot screen

16~20%

sodium hydroxide

polyethylene

Pulp (Na-cellulose)

MCAA

CMC

Patent Subject: 카르복시메틸셀룰로오스의 제조방법

Patent Applicant No.: 제 2002-0032276호

slide7

CMC 합성 및 결과

MCAA

CMC

Recycled Pulp

Na-Cellulose

Carboxymethyl Cellulose, Sodium Salt

Reaction Conditions

molar ratio :

Na-cellulose:Cl-CH2COONa = 1 : 2.5

reaction temp : 78~80C

reaction time : 2.5hr

solvent : isopropyl alcohol : Water

Results :

viscosity : 0.053 ~ 0.210 mPa·s

DS : 0.45 ~ 1.20

slide8

Commercial CMC

SEM Micrographs

XRD Patterns

Synthetic CMC

slide10

PE film

Alkali, Acid treatment

Washing

Melt Index

MFR Mean Value

= 2.636 ± 5210 g/min

Apparent Viscosity

= 7039.97 Pa·s

PE pellet Product

slide11

축산폐기물

배양

분해단백질

활성도

미분해물

분해물

미생물체의

선정

SCMC

PAA

* Blend

* Coating

SCMC, PAA와 축산폐기물의 다기능성부여

slide12

e. Aspergillus niger

f. macrosporus

g. XP-1, XP-2 (powder)

h. XL-1 (liquid)

a. Aspergillus oryzea

b. Gold

c. Dan

d. Aspergillus awamori

1. Protease 생성균주로부터 조효소액의 추출

Gold

Dan

slide13

Future Work

2. 추출효소반응에 의한 활성도 및 분해의 적정 pH

PAA

축산폐기물

SCMC

Water Absorbancy

(g H2O/g)

a) Blend

b) Coating

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