" : ѱöƽ ȭ "
öƽ ̿ǰ ִ. ֱ ȯ湮 ް ִ ؾ öƽ , ѹ Ű¡ öƽ ٸ, ó 츮 Ź äҿ 깰 츮 ̿ ? ݹ ϰ ȴ. ħ Ͼ 츮 ൿ - , ȭ, Ӹ , м - ϳϳ öƽ õǾ ݸ ִ.
̷ öƽ Ͽ ֱ εǰ ִ ‘No use plastic’̶ ΰ 鼭 ǿ ٰ ո ʿϴٴ ϰ ȴ. ṵ̈ ַ ã Ѵٸ ΰ ‘Wise use plastic’̶ óϴ ʿ ñⰡ ƴѰ ȴ. 켱, öƽ ϴ ν ȿ ̴.
, ̹ ˷ ִ ٿ ѱ öƽ 귮 ߱, ̱ 3 ̸ ְ, 鿡 10Ⱓ ٲ δ. ̴ ‘operational excellency’ ʷ Ͽ Ȯϰ ִ ѱ öƽ ̴. , ̷ ‘öƽ ’ [1] Ĺ濡 ġ ‘ ’ ѵǾ Ÿ ̸, ѱ öƽ ݿ ߰ ִ ƴ϶ Ȯϰ νϴ ʿϴ.
öƽ ٸ ߿ ‘Ŀ ’ ‘ǰ ’ ȭ ٵ 䱸ǰ ִ ṉ̃ ϴ. Ϸ ƴ ܱ 뵿ڵ ϰ ִ ‘Ŀ ’ ‘ǰ ’ öƽ Ͼ û ڵ ȣ ִ ȯ ٲپ, ȿ ū ŷ ִ ŵ쳪 ϴ öƽ ϰ ִ ǴϾ Բ ؾ ϴ ȭΰ ƴѰ Ѵ.
̸ ֱ J-ũ ߿伺 ε ·ǰ· ̽ ‘’ ‘ǰ’ȭ ϴ ߰ Ҿ ̸ η 缺 ÿ ϴ ʿϴ. ٵ ‘, ̿’ ġߵǾ ִ ȭ а о߸ ȭ 80% ϰ ִ öƽ κ ȯ ֵ öƽ 迡 а迡 ʿ伺 ϰ ȭ 䱸ϴ ʿ ñ ȴ.
‘ ڻ η Ͽ ϴ Ŀ ǰ’ û Ǿ ڸ â öƽ 迡 ߱ؾ ϴ Բ ؾ Ѵ.
ռ ѱ öƽ operational excellency ٷ ϴ Ͽ 2ȸ ϰ Ѵ. öƽӸ ƴ϶ ǰ ʿ ٽɱ ‘꼺 ’ ‘ҷ ’̴. ǰ 뷮 ϱ ؼ ۿ . Ӱ ؼ Ǵ ǰ flowȭ ϴ ü, ü 긮ų ̾ Ʈ ؼ ü 帣 ϴ ̴.
̶ 帧 Ǵ й ʼ Ұ ̸, ̸ ȰϿ ϴ polymer processing ü̴. Ư 帧 ð ̷ ‘’ ‘’ , 뿡 ̿Ǿ ϴ ̴.
̶ ټ µ ̸ Ұϴ ̾߱⸦ Ǯ Ѵ. 縦 캸 ο õڰ Ȱ 縦 üس鼭 ‘man made polymer’ öƽ ߸ ȰȭDZ ߴ 1929 ̱ ʷ о ȸ (Society of Rheology) Ǹ鼭 ۵Ǿٰ ִ. ̱ ݿ ģ ϸ 翬 ̶ ִ.
öƽ ǰȭ ߸߾ մܰ , ǰ Q.C Ȱϱ پ ߵǾ о߿ 뵵 Ǿ Դ. Ƹ̵ Ϳ Ǵ intrinsic viscosity ϱ ijʷ (capillary viscometer, ASTM D4603 ISO 1628), ϱ (Mooney viscometer, ASTM D1646, ISO 289) ǥ̸ ƿ Q.C ̿ (MI, ASTM D1238, MFR/MVR ISO 1133) 忡 ̿Ǿ Դ.
Ư ܹȭ (shear thinning) Ÿ ü ijʷ (capillary rheometer, ASTM D4603, ISO1628; ϴ ̳ capillary viscometer ϱ capillary rheometer ̿Ͽ) ǰ QC ⸦ ϱ Ȯϴ ̿DZ ϸ鼭 ǥ ڸ Դ.
öƽ ϸ鼭 پ Ŀ带 Ͽ ̿ϰ ʿ 䱸ǰ Է ʷ ռ ʿϰ Ǿ. ̿ Ӿ ο Լ 䱸Ǹ鼭 迡 پ Լ ̿ , 翡 ̸ ̿ǰ ִ [ 4] ȸ (rotation type rheometer), ijʷ (capillary type rheometer), ũ (screw type rheometer) ִ. ߿ ټ ũ Ϳ ؼ ڼ ϰ Ѵ.
öƽ ̵ 翡 ܼ ƴ϶ پ Լ ( öƽ ڷ Ǿ ̵ 帧 Ÿ ƴϰ Լ Ÿ 찡 .) Ӱ ǵǰ ̿ǰ ִ. [ 5]
ź 뺯ϱ ‘ ȭ ð’ ȭð ϱ , 迡 ź 뺰 ִ G’, G” ǥ ̴.
ռ (ܼӵ, high shear rate) õ ̿ ϱ ſ ̵ ܼӵ ȴ. ݸ鿡 ӵ ǰ Ǿ (extrudate swell) ұ ϱ 1 (1st normal stress difference) Լ ̿DZ Ѵ.
̵ Լ ⺻ µ Լ̰, ܼӵ з Լ ǥ , Ī 帧 ִ ٵ Ȯ 䱸ȴ. ٽ ڸ 帧 ϴ ̵ ϱ 帧 viscometric flow Īϸ ǥ , з, ‘0’ , ǰ ִ.
[ 6] ̵ 4 ¿ parallel plate, cone-and-plate, coutte device, bob-and-cup device پ ϰ ̿ǰ ɷ¿ Ҿ ° ƴ öƽ ü ̴. ̸ غϱ Cox-Mertz 踦 ̿ϱ ϳ ѵǰ ִ.
öƽ ٽ 縦 ̿ ǰ, ǰ ̱ ̸ ȭϱ ijʷ ̿Ͽ ̷ Դ. Ŀ ұϰ ijʷ ̿ ȿϰ ʼ Ұ ̴. ܼӵ ϴ ߿ ϴ Ȯ Ŀ ۿ ̿Ǵ Է ʷ 翡 Ұϰ, 翡 ִ ٴ ߴ Ǿ Դ.
ֱ ⸦ ġ · Ͽ ϴ ũ ̿ ̷ κ ذ ִ õǾ ް ִ. 忡 ̿ǰ ִ.
ȣ ̷ ⺻ ⸦ ̿Ͽ öƽ ϰ Ѵ.
<۱ڨ 'öƽ̾' - .>
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