JP4040567B2 - ポリ乳酸系繊維状物およびそれからなる織編物 - Google Patents
ポリ乳酸系繊維状物およびそれからなる織編物 Download PDFInfo
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- JP4040567B2 JP4040567B2 JP2003380765A JP2003380765A JP4040567B2 JP 4040567 B2 JP4040567 B2 JP 4040567B2 JP 2003380765 A JP2003380765 A JP 2003380765A JP 2003380765 A JP2003380765 A JP 2003380765A JP 4040567 B2 JP4040567 B2 JP 4040567B2
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- polylactic acid
- molecular weight
- fibrous material
- antifouling
- weight
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims description 50
- 239000004626 polylactic acid Substances 0.000 title claims description 50
- 239000004744 fabric Substances 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 title description 14
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 239000002657 fibrous material Substances 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000009835 boiling Methods 0.000 claims description 2
- 230000003373 anti-fouling effect Effects 0.000 description 30
- 229920000642 polymer Polymers 0.000 description 11
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 10
- 230000007062 hydrolysis Effects 0.000 description 9
- 238000006460 hydrolysis reaction Methods 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000002519 antifouling agent Substances 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 235000014655 lactic acid Nutrition 0.000 description 5
- 239000004310 lactic acid Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 235000015170 shellfish Nutrition 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- NJYFRQQXXXRJHK-UHFFFAOYSA-N (4-aminophenyl) thiocyanate Chemical compound NC1=CC=C(SC#N)C=C1 NJYFRQQXXXRJHK-UHFFFAOYSA-N 0.000 description 1
- 241000584629 Aosa Species 0.000 description 1
- 241000206761 Bacillariophyta Species 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 241000238586 Cirripedia Species 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000192700 Cyanobacteria Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000237536 Mytilus edulis Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000243142 Porifera Species 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- APQHKWPGGHMYKJ-UHFFFAOYSA-N Tributyltin oxide Chemical compound CCCC[Sn](CCCC)(CCCC)O[Sn](CCCC)(CCCC)CCCC APQHKWPGGHMYKJ-UHFFFAOYSA-N 0.000 description 1
- 241000251555 Tunicata Species 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 229920006167 biodegradable resin Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 208000010824 fish disease Diseases 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- -1 silyl ester Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Description
糸質の低下が発生する。又、倉庫などに保管しておくとフィラメント中の低分子量物が加水分解して強度低下などの問題が発生する。
フェノール/テトラクロロエタン=60/40(質量比)の混合溶媒に試料を1g/dLの濃度になるよう溶解し、20℃でウベローデ粘度管を用いて相対粘度を測定した。
島津製作所製引っ張り試験機(RTM−100)を用い、試料長20cm、速度20cm/minで引っ張り試験を行った。破断強度を引っ張り強度、破断伸度を伸度とした。
リガク製Thermoplus DSC8230を使用して、昇温速度10℃/minにて30℃〜200℃の温度範囲にて測定した。
ゲルパーミエーションクロマトグラフィー測定装置(以下、GPCと省略する。東ソー株式会社製HLC8120、カラム温度40℃、テトラヒドロフラン溶媒)によりポリスチレン標準サンプルとの比較で測定した。
得られたポリ乳酸繊維にて48cm角目ネットを試作し、これを瀬戸内海の防府沖の水面下1.5mに浸漬させ、そして1カ月後、6か月後、24か月後の生物による汚損を評価した。生物による汚損を目視で判断し、非常に良好(非常に少ない)〜非常に不良(非常に多い)までの5段階(5−非常に良好、4−良好、3−やや不良、2−不良、1−非常に不良)で評価した。
融点168℃、分子量が27000のポリ乳酸を10%、融点170℃、分子量140000のポリ乳酸90%を2軸混練機でブレンドしてポリマーP1を得た。
融点168℃、分子量が27000のポリ乳酸を30%、融点170℃、分子量140000のポリ乳酸70%を2軸混練機でブレンドしてポリマーP2を得た。
融点168℃、分子量が27000のポリ乳酸を50%、融点170℃、分子量140000のポリ乳酸50%を2軸混練機でブレンドしてポリマーP3を得た。
融点168℃、分子量が27000のポリ乳酸を2%、融点170℃、分子量140000のポリ乳酸98%を2軸混練機でブレンドしてポリマーP4を得た。
融点168℃、分子量が27000のポリ乳酸を60%、融点170℃、分子量140000のポリ乳酸40%を2軸混練機でブレンドしてポリマーP5を得た。
融点168℃、分子量が8000のポリ乳酸を50%、融点170℃、分子量140000のポリ乳酸50%を2軸混練機でブレンドしてポリマーP6を得た。
融点168℃、分子量が27000のポリ乳酸を10%、融点170℃、分子量250000のポリ乳酸90%を2軸混練機でブレンドしてポリマーP7を得た。
調製例1〜3のポリマーを単軸の押出機を使用し220℃で溶融し、口金ノズル1.2m
m×18本から押出した。水冷却バスを通過した後、94℃の熱水で5.5倍に一段延伸、さらに98℃の熱水で1.2倍に二段延伸して130℃の熱風でヒートセットして500dtexのモノフィラメントを製造した。糸質及び防汚性を表1に示す。
調製例4〜7のポリマーを単軸の押出機を使用し220℃で溶融し、口金ノズル1.2mm×18本から押出した。水冷却バスを通過した後、94℃の熱水で5.5倍に一段延伸、さらに98℃の熱水で1.2倍に二段延伸して130℃の熱風でヒートセットして500dtexのモノフィラメントを製造した。糸質及び防汚性を表2に示す。
又、比較例2は低分子ポリ乳酸のブレンド比率が高いために初期の防汚性は良好であったが、6ヶ月程度からネットの破損が始まり、24ヶ月ではネットの破損がひどく実用上使用するには困難である。
Claims (5)
- 分子量が10000以上50000未満のポリ乳酸系樹脂を重量比で5〜50重量%と、分子量が50000以上200000以下のポリ乳酸系樹脂を重量比で50〜95重量%含有し、相対粘度が3.0〜3.8ηrelである繊維状物。
- ポリ乳酸系樹脂の融点が150℃以上である事を特徴とする、請求項1に記載の繊維状物。
- ポリ乳酸繊維状物の初期引張強度が1.5cN/dtex以上であり、沸水収縮率が12%以下である事を特徴とする請求項1、2いずれかに記載の繊維状物。
- ポリ乳酸繊維状物がマルチフィラメント、モノフィラメント、フラットヤーン、ステープルのいずれかからなる事を特徴とする請求項1〜3いずれかに記載の繊維状物。
- 請求項1〜4いずれかのポリ乳酸繊維状物を使用した織編物。
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JP2005146425A JP2005146425A (ja) | 2005-06-09 |
JP4040567B2 true JP4040567B2 (ja) | 2008-01-30 |
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Families Citing this family (2)
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US8236904B2 (en) | 2005-12-28 | 2012-08-07 | Ethicon, Inc. | Bioabsorbable polymer compositions exhibiting enhanced crystallization and hydrolysis rates |
JP5765697B2 (ja) * | 2010-02-23 | 2015-08-19 | 国立大学法人九州工業大学 | 水棲生物の付着防止材料 |
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