JP2007099786A - 液晶ポリエステル樹脂組成物 - Google Patents
液晶ポリエステル樹脂組成物 Download PDFInfo
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- JP2007099786A JP2007099786A JP2005287322A JP2005287322A JP2007099786A JP 2007099786 A JP2007099786 A JP 2007099786A JP 2005287322 A JP2005287322 A JP 2005287322A JP 2005287322 A JP2005287322 A JP 2005287322A JP 2007099786 A JP2007099786 A JP 2007099786A
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- polyester resin
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- 239000004645 polyester resin Substances 0.000 title claims abstract description 92
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 75
- 239000000203 mixture Substances 0.000 title claims abstract description 51
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 125000003118 aryl group Chemical group 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 17
- 239000000155 melt Substances 0.000 claims description 14
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- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 5
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- -1 Aromatic dicarboxylic acids Chemical class 0.000 description 13
- 239000000047 product Substances 0.000 description 13
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- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 10
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- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 6
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- 150000002148 esters Chemical class 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 5
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- 239000002253 acid Substances 0.000 description 4
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- 239000005711 Benzoic acid Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 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 3
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- IJFXRHURBJZNAO-UHFFFAOYSA-N 3-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(O)=C1 IJFXRHURBJZNAO-UHFFFAOYSA-N 0.000 description 2
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 2
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
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- LODHFNUFVRVKTH-ZHACJKMWSA-N 2-hydroxy-n'-[(e)-3-phenylprop-2-enoyl]benzohydrazide Chemical compound OC1=CC=CC=C1C(=O)NNC(=O)\C=C\C1=CC=CC=C1 LODHFNUFVRVKTH-ZHACJKMWSA-N 0.000 description 1
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- SMAMQSIENGBTRV-UHFFFAOYSA-N 5-hydroxynaphthalene-2-carboxylic acid Chemical compound OC1=CC=CC2=CC(C(=O)O)=CC=C21 SMAMQSIENGBTRV-UHFFFAOYSA-N 0.000 description 1
- 208000010444 Acidosis Diseases 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
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- 101001090688 Homo sapiens Lymphocyte cytosolic protein 2 Proteins 0.000 description 1
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- 101150050055 LCP3 gene Proteins 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 102100034709 Lymphocyte cytosolic protein 2 Human genes 0.000 description 1
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- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 description 1
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- PCILLCXFKWDRMK-UHFFFAOYSA-N naphthalene-1,4-diol Chemical compound C1=CC=C2C(O)=CC=C(O)C2=C1 PCILLCXFKWDRMK-UHFFFAOYSA-N 0.000 description 1
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- WPUMVKJOWWJPRK-UHFFFAOYSA-N naphthalene-2,7-dicarboxylic acid Chemical compound C1=CC(C(O)=O)=CC2=CC(C(=O)O)=CC=C21 WPUMVKJOWWJPRK-UHFFFAOYSA-N 0.000 description 1
- DFQICHCWIIJABH-UHFFFAOYSA-N naphthalene-2,7-diol Chemical compound C1=CC(O)=CC2=CC(O)=CC=C21 DFQICHCWIIJABH-UHFFFAOYSA-N 0.000 description 1
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- 229920001955 polyphenylene ether Polymers 0.000 description 1
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- 235000011056 potassium acetate Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
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- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
〈結晶融解温度測定方法〉
示差走査熱量計としてセイコーインスツルメント株式会社製 Exstar6000を用い、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)の観測後、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た後に、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とする。
〈溶融粘度測定方法〉
溶融粘度測定装置(東洋精機(株)製キャピログラフ1A)を用い、0.7mmφ×10mmのキャピラリーで、液晶ポリエステル樹脂の結晶融解温度から約30℃高い温度にて、剪断速度103s−1での粘度を測定し溶融粘度とする。
〔液晶ポリエステル樹脂モノマー〕
POB:4−ヒドロキシ安息香酸
BON6:6−ヒドロキシ−2−ナフトエ酸
NDA:2,6−ナフタレンジカルボン酸
HQ:ハイドロキノン
得られた重合体の示差走査熱量計により測定される結晶融解温度は323℃であり、350℃での溶融粘度は20Pa・sであった。
液晶ポリエステル樹脂合成例により得られたLCP1(100重量部)と、硼酸アルミニウムウィスカ(40重量部、四国化成工業株式会社製:アルボレックスD)とを、二軸押出機(株式会社池貝製、PCM−30)を用いて、シリンダー温度340−330−330−325℃、スクリュー回転数150rpmにて溶融混練し、ペレット状の液晶ポリエステル樹脂組成物を得た。
図1に示す、厚さ0.6mm、サイドゲートのコネクターモデル型を用いて、下記条件にて成形を行い、金型に樹脂が完全に充填された場合の成形品重量を基準として、金型への樹脂の充填率を求めた。
型締め力:110トン
射出速度:200mm/sec
射出圧力:1000kg/cm2
シリンダー温度:350℃
金型温度:70℃
長さ170×幅12.7×厚さ0.8mmの試験金型の流動末端部に20μmの隙間を設け、充填可能である最低成形圧力で成形し、発生したバリの長さを光学顕微鏡にて計測した。
樹脂の種類、充填材の種類および充填材の使用量を、表1に記載に従い変更する他は、実施例1と同様にして、ペレット状の液晶ポリエステル樹脂組成物を得た。
得られた液晶ポリエステル樹脂組成物について、流動性の評価とバリの評価を行ったので結果を表1に記す。
樹脂の種類、充填材の種類および充填材の使用量を、表1に記載に従い変更し、シリンダー温度を350−340−340−335℃とすることの他は、実施例1と同様にして、ペレット状の液晶ポリエステル樹脂組成物を得た。
得られた液晶ポリエステル樹脂組成物について、流動性の評価とバリの評価を行ったので結果を表1に記す。ただし、流動性の評価はシリンダー温度360℃にて行った。
樹脂の種類、充填材の種類および充填材の使用量を、表1に記載に従い変更し、シリンダー温度を320−310−310−305℃とすることの他は、実施例1と同様にして、ペレット状の液晶ポリエステル樹脂組成物を得た。
得られた液晶ポリエステル樹脂組成物について、流動性の評価とバリの評価を行ったので結果を表1に記す。ただし、流動性の評価はシリンダー温度330℃にて行った。
樹脂の種類、充填材の種類および充填材の使用量を、表1に記載に従い変更する他は、実施例1と同様にして、ペレット状の液晶ポリエステル樹脂組成物を得た。
得られた液晶ポリエステル樹脂組成物について、流動性の評価とバリの評価を行ったので結果を表1に記す。
Claims (8)
- 液晶ポリエステル樹脂が、全繰返し単位中に、式(I)で表される繰返し単位を30〜90モル%含み、式(III)および式(IV)で表される繰返し単位を実質的に等モル%含むものである、請求項1に記載の液晶ポリエステル樹脂組成物。
- Ar1が式(4)で表される芳香族基であり、Ar2が式(1)で表される芳香族基である請求項3に記載の液晶ポリエステル樹脂組成物。
- ウィスカが、硼酸アルミニウムウィスカおよび/またはチタン酸カリウムウィスカである請求項1〜4の何れかに記載の液晶ポリエステル樹脂組成物。
- ウィスカが、平均繊維径0.1〜2.0μm、平均繊維長5〜100μm、アスペクト比10〜150のものである、請求項1〜5の何れかに記載の液晶ポリエステル樹脂組成物。
- 液晶ポリエステル樹脂の溶融粘度が、3〜80Pa・sである、請求項1〜6の何れかに記載の液晶ポリエステル樹脂組成物。
- 請求項1〜7いずれかに記載の液晶ポリエステル樹脂組成物を成形してなる成形品。
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JP7498641B2 (ja) | 2020-10-22 | 2024-06-12 | 上野製薬株式会社 | 液晶ポリマー組成物 |
JP7511421B2 (ja) | 2019-09-30 | 2024-07-05 | ポリプラスチックス株式会社 | 樹脂組成物及びこれを用いたコネクタ部品 |
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