Kodchakorn BokamNutnaree Tamprateep

Patcharaporn Chalopagorn

IntroductionIntroductionIntroductionIntroduction

ProductsProductsProductsProducts

Para RubberPara RubberPara RubberPara Rubber Taxonomic Classification

Class : AngiospermaeSubclass : DicotyledoneaeOrder : EuphorbialesFamily : EuphorbiaceaeGenus : HeveaSpecies : brasiliensis

Scientific name : Hevea brasiliensis Muell Arg.

Common name : Para Rubber

HDPEHDPE is the high density version of PE plastic. Because it has little branching, giving it stronger intermolecular forces and tensile strength than lower density polyethylene. So It is harder, stronger, more opaque and a little heavier than LDPE, but less ductile.

HDPEHDPEHDPEHDPE

HDPEHDPEHDPEHDPE

HDPE is lighter than water, and can be moulded and joined together

HDPE is resistant to many different solvents and has a wide variety of applications

ObjectiveObjectiveObjectiveObjective

To study about appropriate ratio to produce particle board

from Para rubber wood flour, coconut flour, and recycled plastic.

To study about appropriate ratio to produce particle board

from Para rubber wood flour, coconut flour, and recycled plastic.

- Advisors

Mr.Sorachai Sae-lim Dr.Chanchai Thongpin Ass.Prof. Dr.Chakrit Sirisinha

AcknowledgeAcknowledgeAcknowledgeAcknowledge

- The Thailand Research Fund , ( TRF )

- Young Scientist competition , ( YSC2008 )

Experiment

1. Production of wood plastic composites

2. Testing

- Prepare material

- Mixing & Molding composites

MethodMethodMethodMethod

-Impact test

-Flexural test

-Tensile test

-Melt flow index

3. Fill coconut flour

1.1. Production of wood plastic compositesProduction of wood plastic composites1.1. Production of wood plastic compositesProduction of wood plastic composites

1.1 Preparing Materials1.1 Preparing Materials1.1 Preparing Materials1.1 Preparing Materials

Dry at 75 degree to control moisture less than 5%

Crush with grinderUse Screened wood flour > 200 mesh

Recycled PlasticPara Wood Flour

Preparing MaterialsPreparing MaterialsPreparing MaterialsPreparing Materials

1.2 Mixing & Molding1.2 Mixing & Molding1.2 Mixing & Molding1.2 Mixing & Molding

Mixing & Molding MethodMixing & Molding MethodMixing & Molding MethodMixing & Molding Method

Mix wood flour and recycled plastic by internal mixer

Molding specimen by injection molding

ASTM test

RatioRatioRatioRatio

- Pure recycled plastic

- 10 % wood flour by weight

- 20 % wood flour by weight

- 40 % wood flour by weight

Result of moldingResult of moldingResult of moldingResult of molding- Pure recycled plastic

- 10 % wood flour by weight

- 20 % wood flour by weight

100100%% Recycled Recycled plasticplastic

10% Wood

20% Wood

2. Testing2. Testing2. Testing2. Testing

ASTM standards usedASTM standards usedASTM standards usedASTM standards used

ResultResult : 2.1 Tensile Test: 2.1 Tensile TestResultResult : 2.1 Tensile Test: 2.1 Tensile Test

Formula Tensile Strength (MPa)

Tensile Elongation (%)

Tensile Modulus (MPa)

Pure 23.989 40.836 589.788

10%Wood 23.672 191.235 592.627

20%Wood 19.097 19.890 886.989

ResultResult : 2.2 Flexural Test: 2.2 Flexural TestResultResult : 2.2 Flexural Test: 2.2 Flexural Test

Formula Flexural Strength (MPa) Flexural Modulus (MPa)

Pure 1.297 1435.756

10%Wood 1.230 1678.083

20%Wood 1.203 3280.284

Result : 2.3 Impact TestResult : 2.3 Impact TestResult : 2.3 Impact TestResult : 2.3 Impact Test

Impact Testing

22.59713528

10.11348678

7.103395286

0

5

10

15

20

25

30

1Formula

kJ / m*m

0% Wood

10% Wood

20% Wood

Result : 2.4 Melt index testResult : 2.4 Melt index testResult : 2.4 Melt index testResult : 2.4 Melt index test

Formula Melt Index (g/10min)

00% % WoodWood

(g)(g)0.7478 ± 0.038

1010%% Wood Wood

(g)(g)0.8790 ± 0.086

2020%% Wood Wood

(g)(g) 0.5732 ± 0.056

Result : 2.4 Melt index testResult : 2.4 Melt index testResult : 2.4 Melt index testResult : 2.4 Melt index test

Melt Flow Index

0.7478

0.879

0.5732

0

0.2

0.4

0.6

0.8

1

1.2

formula

mel

t in

dex

(g

/10m

in)

0% Wood

10% Wood

20% Wood

3.3. Fill coconut flourFill coconut flour3.3. Fill coconut flourFill coconut flour

Dry at 75 degree to control moisture less than 5%

Coconut Flour

Crush with grinder

Preparing materialsPreparing materialsPreparing materialsPreparing materials

ResultResult : 3.1 Tensile Test: 3.1 Tensile TestResultResult : 3.1 Tensile Test: 3.1 Tensile Test

FormulaTensile Strength

(MPa)Tensile Elongation

(%)Tensile Modulus

(MPa)

5%5%Wood-Coconut

24.217 87.342 540.640

10%Wood 23.692 191.235 578.399

Result : 3.2 Flexural TestResult : 3.2 Flexural TestResult : 3.2 Flexural TestResult : 3.2 Flexural Test

FormulaFlexural Strength

(MPa)Flexural Modulus (MPa)

5%5%Wood-Coconut

2.293 1095.891

10%Wood 1.157 1609.318

Result : 3.3 Impact TestResult : 3.3 Impact TestResult : 3.3 Impact TestResult : 3.3 Impact Test

Impact Test

10.113

7.103

0

2

4

6

8

10

12

14

1 formula

imp

act

stre

ng

th(k

J/m

*m)

10%Wood

5%Wood5%Coconut

Result : 3.4 Melt index Result : 3.4 Melt index testtest

Result : 3.4 Melt index Result : 3.4 Melt index testtest

Formula Melt Index (g/10min)

55%%5%5% Wood-Wood-Coconut (g)Coconut (g)

0.6008 ± 0.077

1010%% Wood Wood

(g)(g)0.8790 ± 0.086

Result : 3.4 Melt index Result : 3.4 Melt index testtest

Result : 3.4 Melt index Result : 3.4 Melt index testtest Melt Flow Index

0.879

0.6008

0

0.2

0.4

0.6

0.8

1

1.2

formula

mel

t in

dex

(g

/10m

in)

10% Wood

5%Wood5%Coconut

เมื่��อเพิ่��มื่ปริ�มื่าณขี้��เลื่��อยไมื่�ยางพิ่าริา-ความแข็�งแรงดึ�ง (Tensile Strength)ม แนวโน�มลดึลง-ร�อยละการดึ�งย�ดึ ณ จุ�ดึข็าดึ (Tensile Elongation) ม แนวโน�มลดึลง-มอดึ�ล�ส (Tensile Modulus) ม แนวโน�มเพิ่� มข็�!น-ความแข็�งแรงโค�งงอ (Flexural Strength) ม แนวโน�มลดึลง-มอดึ�ล�สโค�งงอ (Flexural Modulus) ม แนวโน�มส�งข็�!น-ความแข็�งแรงกระแทก (Impact Strength) ม แนวโน�มส�งข็�!น-ดึ�ชน การไหล (Melt Flow Index) ม แนวโน�มลดึลง

ConclusionConclusionConclusionConclusion

เมื่��อผสมื่ขี้�ยมื่ะพิ่ริ�าว-ความแข็�งแรงดึ�ง (Tensile Strength)ม แนวโน�มเพิ่� มข็�!น-ร�อยละการดึ�งย�ดึ ณ จุ�ดึข็าดึ (Tensile Elongation) ม แนวโน�มลดึลง-มอดึ�ล�ส (Tensile Modulus) ม แนวโน�มลดึลง-ความแข็�งแรงโค�งงอ (Flexural Strength) ม แนวโน�มเพิ่� มข็�!น-มอดึ�ล�สโค�งงอ (Flexural Modulus) ม แนวโน�มลดึลง-ความแข็�งแรงกระแทก (Impact Strength) ม แนวโน�มส�งข็�!น-ดึ�ชน การไหล (Melt Flow Index) ม แนวโน�มลดึลง

ConclusionConclusionConclusionConclusion

ReferencesReferencesReferencesReferencesNicole M.Stark.1997. Effect of Species and Particle Size on Properties of Wood- Flour-Filled Polypropylene Composites. USDA Forest Products Lab.

10-16

American Society for Testing and Materials. 2006. ASTM(online). Available: http://www.astm.org/ [5 January 2550]

Craig Clemons. (2002). Wood-Plastic Composites in the United States. [Online].Available: http://www.fpl.fs.fed.us/documnts/pdf2002/clemo02b.pdf

Science Magazine. 2005. Properties of high-density polyethylene using durian and rubber sawdusts as fillers. 23(2-3): 132-146