JPWO2018159861A1 - ガラス繊維強化樹脂成形品 - Google Patents
ガラス繊維強化樹脂成形品 Download PDFInfo
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- JPWO2018159861A1 JPWO2018159861A1 JP2018549363A JP2018549363A JPWO2018159861A1 JP WO2018159861 A1 JPWO2018159861 A1 JP WO2018159861A1 JP 2018549363 A JP2018549363 A JP 2018549363A JP 2018549363 A JP2018549363 A JP 2018549363A JP WO2018159861 A1 JPWO2018159861 A1 JP WO2018159861A1
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- Prior art keywords
- glass fiber
- resin molded
- reinforced resin
- fiber reinforced
- molded product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
ガラス繊維強化樹脂成形品は、前記ガラス繊維強化樹脂成形品に含まれるガラス繊維の繊維径D(μm)が3.0〜12.0μmの範囲にあり、ガラス繊維強化樹脂成形品に含まれるガラス繊維の数平均繊維長L(μm)が160〜350μmの範囲にあり、ガラス繊維強化樹脂成形品におけるガラス繊維体積含有率V(%)が3.0〜50.0%の範囲にあり、前記D、L及びVが下記式(1)を満たす。
300.0 ≦ D2×L/V ≦ 1000.0 ・・・(1)
Description
本発明のガラス繊維強化樹脂成形品によれば、前記D、L及びVが上述した範囲にあり、かつ、上記式(1)の条件を満たすことで、ガラス繊維強化樹脂成形品は、高い機械的強度、高い耐熱性、及び、優れた成形加工時の加工性を備える。
本発明のガラス繊維強化樹脂成形品によれば、前記D、L及びVが上述した範囲にあり、かつ、上記式(2)の条件を満たすことで、ガラス繊維強化樹脂成形品は、高い機械的強度、より高い耐熱性、及び、より優れた成形加工時の加工性を備える。
本発明のガラス繊維強化樹脂成形品によれば、前記D、L及びVが上述した範囲にあり、かつ、上記式(3)の条件を満たすことで、ガラス繊維強化樹脂成形品は、より高い機械的強度、より高い耐熱性、及び、より優れた成形加工時の加工性を備える。さらに、本発明のガラス繊維強化樹脂成形品において、前記D、L及びVが、下記式(3)を満たす場合、本発明のガラス繊維強化樹脂成形品は、高い長期耐久性を備える。
本発明のガラス繊維強化樹脂成形品によれば、前記D、L及びVが上述した範囲にあり、かつ、上記式(4)の条件を満たすことで、ガラス繊維強化樹脂成形品は、極めて高い機械的強度、極めて高い耐熱性、及び、より優れた成形加工時の加工性をより確実に備え、さらに、高い長期耐久性を備える。
本実施形態のガラス繊維強化樹脂成形品において、ガラス繊維の繊維径Dが、3.0μm未満であると、ガラス繊維及びガラス繊維強化樹脂成形品の製造工程において製造者の健康に悪影響を与えることが懸念される。一方、ガラス繊維の繊維径Dが、12.0μm超であると、十分な機械的強度を備えるガラス繊維強化樹脂成形品を得ることができない。
また、本実施形態のガラス繊維強化樹脂成形品において、前記D、L及びVは、下記式(3)を満たすことがさらに好ましい。D2×L/Vが下記式(3)を満たすことで、ガラス繊維強化樹脂成形品は、より高い機械的強度、より高い耐熱性、及び、より優れた成形加工時の加工性を備え、さらに高い長期耐久性を備える。
また、本実施形態のガラス繊維強化樹脂成形品において、前記D、L及びVは、下記式(5)を満たすことが特に好ましい。D2×L/Vが下記式(5)を満たすことで、ガラス繊維強化樹脂成形品は、極めて高い機械的強度、極めて高い耐熱性、及び、より優れた成形加工時の加工性を備え、さらに高い長期耐久性を備える。
本実施形態のガラス繊維強化樹脂成形品において、前記D、L及びVは、下記式(6)を満たすことが好ましい。D4/5×L2/(1000×V2/3)が下記式(6)を満たすことで、より高い機械的強度、より高い耐熱性、及び、より優れた成形加工時の加工性を備え、さらに高い長期耐久性を備える。
本実施形態のガラス繊維強化樹脂成形品において、前記D、L及びVは、下記式(4)を満たすことが特に好ましい。D4/5×L2/(1000×V2/3)が下記式(4)を満たすことで、ガラス繊維強化樹脂成形品は、極めて高い機械的強度、極めて高い耐熱性、及び、より優れた成形加工時の加工性をより確実に備え、さらに高い長期耐久性を備える。
本実施形態のガラス繊維強化樹脂成形品において、ガラス繊維の断面形状(通常、ガラス繊維は複数本のガラスフィラメントが集束されて構成されており、このガラスフィラメントの断面形状をガラス繊維の断面形状という)は特に限定されない。本実施形態のガラス繊維強化樹脂成形品において、ガラス繊維がとりうる断面形状(すなわち、ガラスフィラメントがとりうる断面形状)としては、真円形、楕円形、長円形を挙げることができる。ガラス繊維の断面形状が楕円形又は長円形である場合、断面形状の短径に対する長径の比(長径/短径)は、例えば、2.0〜10.0の範囲にある。ガラス繊維強化樹脂成形品の機械的強度を向上させるという観点からは、ガラス繊維の断面形状は、長円形であることが好ましく、断面形状の短径に対する長径の比は、2.2〜6.0であることが好ましい。
まず、ガラス繊維強化樹脂成形品におけるガラス繊維の繊維径、ガラス繊維の数平均繊維長及びガラス繊維体積含有率が、表1又は表2に示される実施例1〜6及び比較例1〜5となるように、ガラス繊維径、切断長(通常、1〜5mm程度)及び配合量を調整したEガラス組成のガラスチョップドストランド(ガラスフィラメントが複数本集束されて形成された、ガラスストランドを所定の長さに切断したもの)と、ポリアミド樹脂PA66(旭化成(株)製、商品名:レオナ1300S)とを、二軸混練機(東芝機械(株)製、商品名:TEM−26SS)にて混練し、樹脂ペレットを作製した。次に、得られた樹脂ペレットを用い、射出成形機(日清樹脂工業(株)製、商品名:NEX80)により射出成形を行い、JIS K 7054に準じたA型ダンベル試験片(厚さ4mm)を作製し、試験片とした。
前記試験片について、試験温度23℃の条件で、精密万能試験機((株)島津製作所製、商品名:オートグラフAG−5000B)を用いて、JIS K 7054に準拠した静的引張試験を行い、引張強度を測定した。
前記試験片について、試験応力1.8MPa、昇温速度120℃/hの条件で、ヒートディストーションテスター(商品名、(株)安田精機製作所製、型式:148−HD500)を用いて、JIS K 7191に準拠したフラットワイズにおける荷重たわみ温度を測定した。
前記試験片について、試験温度23℃、応力比0.1、周波数10Hzの条件で、油圧サーボ式強度試験機((株)島津製作所製、商品名:島津サーボパルサEHF−EV020K1−020−1A形)を用いて、JIS K 7118に準拠した引張疲労試験を行い、繰り返し回数107における疲労強度を測定した。
前記試験片について、試験温度23℃の条件で、万能試験機(インテスコ社製)を用いて、JIS K 7115に準拠した引張クリープラプチャー試験を行い、静的応力の60〜90%の応力範囲におけるクリープ破断時間を測定した。その結果から対数近似にてクリープラプチャー曲線を取得し、応力負荷1000時間におけるクリープ破壊強度を算出した。
混練時及び成形時における作業状況に応じて、加工性を以下の基準にて評価した。◎:混練時及び成形時に問題なく製造可能。○:混練時には問題ないが、成形時にホッパー部でブリッジが発生し、製造者の補助が必要となる。×:混練時のカット部で詰まりが発生し、製造者の補助が必要となり、かつ、成形時にホッパー部でブリッジが発生し、製造者の補助が必要となる。
また、実施例1に示されるガラス繊維強化樹脂成形品は、高い長期耐久性(疲労強度78MPa以上、かつ、応力負荷1000時間におけるクリープ破壊強度114MPa以上)備える。
[実施例5、比較例6〜7]
まず、ガラス繊維強化樹脂成形品におけるガラス繊維の繊維径、ガラス繊維の数平均繊維長及びガラス繊維体積含有率が、表3に示される実施例7及び比較例6〜7となるように、ガラス繊維径、切断長(通常、1〜5mm程度)及び配合量を調整した、高弾性率易製造性ガラス組成に属するガラス組成(ガラス繊維の全量に対し59.4質量%のSiO2と、18.9質量%のAl2O3と、9.9質量%のMgOと、11.1質量%のCaOと、0.5質量%のB2O3とを含み、Na2O及びFe2O3を合計で0.2質量%含むガラス組成)のガラスチョップドストランドと、ポリアミド樹脂PA66(旭化成(株)製、商品名:レオナ1300S)とを、二軸混練機(東芝機械(株)製、商品名:TEM−26SS)にて混練し、樹脂ペレットを作製した。次に、得られた樹脂ペレットを用い、射出成形機(日清樹脂工業(株)製、商品名:NEX80)により射出成形を行い、JIS K 7054に準じたA型ダンベル試験片(厚さ4mm)を作製し、試験片とした。
本発明のガラス繊維強化樹脂成形品によれば、前記D、L及びVが上述した範囲にあり、かつ、上記式(1)の条件を満たすことで、ガラス繊維強化樹脂成形品は、高い機械的強度、高い耐熱性、及び、優れた成形加工時の加工性を備える。
本実施形態のガラス繊維強化樹脂成形品において、ガラス繊維の繊維径Dが、3.5μm未満であると、ガラス繊維及びガラス繊維強化樹脂成形品の製造工程において製造者の健康に悪影響を与えることが懸念される。一方、ガラス繊維の繊維径Dが、8.0μm超であると、十分な機械的強度を備えるガラス繊維強化樹脂成形品を得ることができない。
まず、ガラス繊維強化樹脂成形品におけるガラス繊維の繊維径、ガラス繊維の数平均繊維長及びガラス繊維体積含有率が、表1又は表2に示される実施例1〜5及び比較例1〜5となるように、ガラス繊維径、切断長(通常、1〜5mm程度)及び配合量を調整したEガラス組成のガラスチョップドストランド(ガラスフィラメントが複数本集束されて形成された、ガラスストランドを所定の長さに切断したもの)と、ポリアミド樹脂PA66(旭化成(株)製、商品名:レオナ1300S)とを、二軸混練機(東芝機械(株)製、商品名:TEM−26SS)にて混練し、樹脂ペレットを作製した。次に、得られた樹脂ペレットを用い、射出成形機(日清樹脂工業(株)製、商品名:NEX80)により射出成形を行い、JIS K 7054に準じたA型ダンベル試験片(厚さ4mm)を作製し、試験片とした。
また、実施例1に示されるガラス繊維強化樹脂成形品は、高い長期耐久性(疲労強度78MPa以上、かつ、応力負荷1000時間におけるクリープ破壊強度114MPa以上)備える。
[実施例6、比較例6〜7]
まず、ガラス繊維強化樹脂成形品におけるガラス繊維の繊維径、ガラス繊維の数平均繊維長及びガラス繊維体積含有率が、表3に示される実施例6及び比較例6〜7となるように、ガラス繊維径、切断長(通常、1〜5mm程度)及び配合量を調整した、高弾性率易製造性ガラス組成に属するガラス組成(ガラス繊維の全量に対し59.4質量%のSiO2と、18.9質量%のAl2O3と、9.9質量%のMgOと、11.1質量%のCaOと、0.5質量%のB2O3とを含み、Na2O及びFe2O3を合計で0.2質量%含むガラス組成)のガラスチョップドストランドと、ポリアミド樹脂PA66(旭化成(株)製、商品名:レオナ1300S)とを、二軸混練機(東芝機械(株)製、商品名:TEM−26SS)にて混練し、樹脂ペレットを作製した。次に、得られた樹脂ペレットを用い、射出成形機(日清樹脂工業(株)製、商品名:NEX80)により射出成形を行い、JIS K 7054に準じたA型ダンベル試験片(厚さ4mm)を作製し、試験片とした。
Claims (4)
- ガラス繊維強化樹脂成形品であって、前記ガラス繊維強化樹脂成形品に含まれるガラス繊維の繊維径D(μm)が3.0〜12.0μmの範囲にあり、ガラス繊維強化樹脂成形品に含まれるガラス繊維の数平均繊維長L(μm)が160〜350μmの範囲にあり、ガラス繊維強化樹脂成形品におけるガラス繊維体積含有率V(%)が3.0〜50.0%の範囲にあり、前記D、L及びVが下記式(1)を満たすことを特徴とするガラス繊維強化樹脂成形品。
300.0 ≦ D2×L/V ≦ 1000.0 ・・・(1) - 前記Dが3.5〜10.5μmの範囲にあり、前記Lが180〜260μmの範囲にあり、前記Vが5.0〜30.0%の範囲にあり、前記D、L及びVが下記式(2)を満たすことを特徴とする請求項1に記載のガラス繊維強化樹脂成形品。
350.0 ≦ D2×L/V ≦ 800.0 ・・・(2) - 前記Dが4.0〜7.5μmの範囲にあり、前記Lが195〜225μmの範囲にあり、前記Vが6.0〜25.0%の範囲にあり、前記D、L及びVが下記式(3)を満たすことを特徴とする請求項1又は2に記載のガラス繊維強化樹脂成形品。
400.0 ≦ D2×L/V ≦ 700.0 ・・・(3) - 前記Dが4.5〜7.0μmの範囲にあり、前記Lが200〜223μmの範囲にあり、前記Vが10.0〜20.0%の範囲にあり、前記D、L及びVが下記式(4)を満たすことを特徴とする請求項1から3のいずれか1項に記載のガラス繊維強化樹脂成形品。
29.7 ≦ D4/5×L2/(1000×V2/3) ≦ 34.8 ・・・(4)
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- 2018-06-11 CN CN201880064768.1A patent/CN111183174B/zh active Active
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CN111183174B (zh) | 2022-10-04 |
US20200102431A1 (en) | 2020-04-02 |
EP3536736A4 (en) | 2020-04-15 |
KR102463000B1 (ko) | 2022-11-03 |
EP3536736A2 (en) | 2019-09-11 |
CN111183174A (zh) | 2020-05-19 |
WO2018159861A2 (ja) | 2018-09-07 |
EP3536736B1 (en) | 2022-01-26 |
TW201915055A (zh) | 2019-04-16 |
WO2018159861A3 (ja) | 2018-11-01 |
TWI693247B (zh) | 2020-05-11 |
KR20200062276A (ko) | 2020-06-03 |
JP6512376B2 (ja) | 2019-05-15 |
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