JP5280281B2 - 液晶ポリマー組成物およびそれからなる成形品 - Google Patents
液晶ポリマー組成物およびそれからなる成形品 Download PDFInfo
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- JP5280281B2 JP5280281B2 JP2009091965A JP2009091965A JP5280281B2 JP 5280281 B2 JP5280281 B2 JP 5280281B2 JP 2009091965 A JP2009091965 A JP 2009091965A JP 2009091965 A JP2009091965 A JP 2009091965A JP 5280281 B2 JP5280281 B2 JP 5280281B2
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- Prior art keywords
- liquid crystal
- crystal polymer
- polymer composition
- calcium carbonate
- weight
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- 229920000106 Liquid crystal polymer Polymers 0.000 title claims abstract description 111
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 title claims abstract description 111
- 239000000203 mixture Substances 0.000 title claims abstract description 52
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 92
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 46
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 3
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- 229910052570 clay Inorganic materials 0.000 claims description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
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- 239000010439 graphite Substances 0.000 claims description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
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- 229910052623 talc Inorganic materials 0.000 claims description 2
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- 239000002245 particle Substances 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 8
- 239000004408 titanium dioxide Substances 0.000 abstract description 7
- BAJCNPGPHMFYJP-UHFFFAOYSA-L calcium oxygen(2-) titanium(4+) carbonate Chemical compound [O-2].[O-2].[Ca+2].[Ti+4].[O-]C([O-])=O BAJCNPGPHMFYJP-UHFFFAOYSA-L 0.000 abstract description 3
- 239000011246 composite particle Substances 0.000 abstract description 3
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- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 7
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 6
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- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 6
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- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
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- QNVNLUSHGRBCLO-UHFFFAOYSA-N 5-hydroxybenzene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC(O)=CC(C(O)=O)=C1 QNVNLUSHGRBCLO-UHFFFAOYSA-N 0.000 description 2
- 208000010444 Acidosis Diseases 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 150000007513 acids Chemical class 0.000 description 2
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- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
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- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
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- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- YFOOEYJGMMJJLS-UHFFFAOYSA-N 1,8-diaminonaphthalene Chemical compound C1=CC(N)=C2C(N)=CC=CC2=C1 YFOOEYJGMMJJLS-UHFFFAOYSA-N 0.000 description 1
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 1
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- ALKYHXVLJMQRLQ-UHFFFAOYSA-N 3-Hydroxy-2-naphthoate Chemical compound C1=CC=C2C=C(O)C(C(=O)O)=CC2=C1 ALKYHXVLJMQRLQ-UHFFFAOYSA-N 0.000 description 1
- XFDUHJPVQKIXHO-UHFFFAOYSA-N 3-aminobenzoic acid Chemical compound NC1=CC=CC(C(O)=O)=C1 XFDUHJPVQKIXHO-UHFFFAOYSA-N 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Description
1)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸共重合体
2)4−ヒドロキシ安息香酸/テレフタル酸/4,4’−ジヒドロキシビフェニル共重合体
3)4−ヒドロキシ安息香酸/テレフタル酸/イソフタル酸/4,4’−ジヒドロキシビフェニル共重合体
4)4−ヒドロキシ安息香酸/テレフタル酸/イソフタル酸/4,4’−ジヒドロキシビフェニル/ハイドロキノン共重合体
5)4−ヒドロキシ安息香酸/テレフタル酸/ハイドロキノン共重合体
6)6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/ハイドロキノン共重合体
7)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/4,4’−ジヒドロキシビフェニル共重合体
8)6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/4,4’−ジヒドロキシビフェニル共重合体
9)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/ハイドロキノン共重合体
10)4−ヒドロキシ安息香酸/2,6−ナフタレンジカルボン酸/4,4’−ジヒドロキシビフェニル共重合体
11)4−ヒドロキシ安息香酸/テレフタル酸/2,6−ナフタレンジカルボン酸/ハイドロキノン共重合体
12)4−ヒドロキシ安息香酸/2,6−ナフタレンジカルボン酸/ハイドロキノン共重合体
13)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/2,6−ナフタレンジカルボン酸/ハイドロキノン共重合体
14)4−ヒドロキシ安息香酸/テレフタル酸/2,6−ナフタレンジカルボン酸/ハイドロキノン/4,4’−ジヒドロキシビフェニル共重合体
15)4−ヒドロキシ安息香酸/テレフタル酸/4−アミノフェノール共重合体
16)6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/4−アミノフェノール共重合体
17)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/4−アミノフェノール共重合体
18)4−ヒドロキシ安息香酸/テレフタル酸/4,4’−ジヒドロキシビフェニル /4−アミノフェノール共重合体
19)4−ヒドロキシ安息香酸/テレフタル酸/エチレングリコール共重合体
20)4−ヒドロキシ安息香酸/テレフタル酸/4,4’−ジヒドロキシビフェニル/エチレングリコール共重合体
21)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/エチレングリコール共重合体
22)4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/4,4’−ジヒドロキシビフェニル/エチレングリコール共重合体。
本発明において用いる液晶ポリマーの製造方法に特に制限はなく、前記の単量体の組み合わせからなるエステル結合またはアミド結合を形成させる公知の重縮合方法、例えば溶融アシドリシス法、スラリー重合法などを用いることができる。
〈結晶融解温度測定方法〉
液晶ポリマーの試料を、室温から20℃/分の昇温条件で測定した際に観測される吸熱ピーク温度(Tm1)の測定後、Tm1より20〜50℃高い温度で10分間保持する。次いで、20℃/分の降温条件で室温まで試料を冷却し、さらに再度20℃/分の昇温条件で測定した際の吸熱ピークを観測し、そのピークトップを示す温度を液晶ポリマーの結晶融解温度(Tm)とする。
これらの添加剤の配合量は、液晶ポリマー100重量に対して、0.01〜5重量部であるのが好ましい。
実施例および比較例において、液晶ポリマーは、LCP1として、UENO LCP 2000(上野製薬株式会社製、4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/ハイドロキノン共重合体、結晶融解温度325℃)を、LCP2として、UENO LCP 2500(上野製薬株式会社製、4−ヒドロキシ安息香酸/6−ヒドロキシ−2−ナフトエ酸/テレフタル酸/ハイドロキノン共重合体、結晶融解温度330℃)を使用した。
液晶ポリマー100重量部に対し、表2に記載の種類および量の充填剤を、2軸押出し機PCM−30(株式会社池貝製)を用い、シリンダー温度、330−320−320−310℃、スクリュ回転数150rpmの条件で溶融混練し、液晶ポリマー組成物のペレットを作成した。
液晶ポリマー組成物作成例により得られた、液晶ポリマー組成物のペレットを用いて、以下の表1に記載の成形条件により、厚み0.4mmの曲げ試験片金型を用いて、試験片中央部にウェルドラインが出来るように試験片金型の両サイドから樹脂を充填し、図1に示す形状のウェルド部を有する試験片を射出成形により作成した。
JIS K7171に従い、試験片作成例により得られた試験片のウェルド部曲げ強度を測定した。実施例1〜4および比較例1〜3の液晶ポリマー組成物のウェルド部曲げ強度の測定結果を表2に示す。
試験片作成のための射出成形に際し、射出パージ時に溶融物に発生する発泡を目視にて観察し、溶融物が膨張していれば発泡現象有(×)、膨張していなければ発泡現象無(○)とした。結果を表2に示す。
Claims (8)
- 液晶ポリマー、および、液晶ポリマー100重量部に対して0.1〜200重量部のチタニア担持炭酸カルシウムを含む、液晶ポリマー組成物。
- 液晶ポリマー100重量部に対して0.1〜100重量部のチタニア担持炭酸カルシウムを含む、請求項1に記載の液晶ポリマー組成物。
- さらに、液晶ポリマー100重量部に対して0.1〜200重量部の、チタニア担持炭酸カルシウム以外の繊維状、板状、または粉状の充填剤から選択される一種以上の充填剤を含む、請求項1または2の何れかに記載の液晶ポリマー組成物。
- チタニア担持炭酸カルシウム以外の充填剤が、ガラス繊維、ミルドガラス、シリカアルミナ繊維、アルミナ繊維、炭素繊維、アラミド繊維、チタン酸カリウムウイスカ、ホウ酸アルミニウムウイスカ、およびウォラストナイトからなる群より選択される繊維状の充填剤、ならびにタルク、マイカ、グラファイト、炭酸カルシウム、ドロマイト、クレイ、ガラスフレーク、ガラスビーズ、硫酸バリウム、および酸化チタンからなる群より選択される板状あるいは粉状の充填剤からなる群より選択される1種以上の充填剤である、請求項3に記載の液晶ポリマー組成物。
- チタニア担持炭酸カルシウム以外の充填剤がガラス繊維である請求項4に記載の液晶ポリマー組成物。
- 長さ64mm、幅12.7mm、厚み0.4mmの曲げ試験片金型を用い、中央にウェルドラインが出来るように試験片金型の両サイドから、請求項1〜5の何れかに記載の液晶ポリマー組成物を充填して得た試験片を用いて、JIS K7171に従い測定したウェルド曲げ強度が50MPa以上である、請求項1〜5の何れかに記載の液晶ポリマー組成物。
- 請求項1〜6の何れかに記載の液晶ポリマー組成物を成形して得られた、ウェルド部を有する成形品。
- 液晶ポリマーまたは液晶ポリマー組成物に、液晶ポリマー100重量部に対して0.1〜200重量部のチタニア担持炭酸カルシウムを配合することを特徴とする、液晶ポリマーまたは液晶ポリマー組成物の成形品のウェルド部の強度改良方法。
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