JPWO2016175247A1 - 熱硬化性樹脂材料、硬化物及びその製造方法 - Google Patents
熱硬化性樹脂材料、硬化物及びその製造方法 Download PDFInfo
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- JPWO2016175247A1 JPWO2016175247A1 JP2017515581A JP2017515581A JPWO2016175247A1 JP WO2016175247 A1 JPWO2016175247 A1 JP WO2016175247A1 JP 2017515581 A JP2017515581 A JP 2017515581A JP 2017515581 A JP2017515581 A JP 2017515581A JP WO2016175247 A1 JPWO2016175247 A1 JP WO2016175247A1
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- peroxide
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Classifications
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- C—CHEMISTRY; METALLURGY
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Abstract
Description
(熱硬化性樹脂組成物の調製)
フラン樹脂(日立化成株式会社製、VF−303)120gに対し、硬化剤としてp−トルエンスルホン酸1.02gと、35質量%の過酸化水素水3.0gとを添加した後に混合した。その後に真空脱泡して熱硬化性樹脂組成物を得た。
長さ20cmのケナフ繊維12gの束5つを5質量%水酸化ナトリウム水溶液に浸漬し、80℃で9時間加熱した後、0.01mol/Lの塩酸に1時間浸漬させて中和した。その後、ステンレス板(縦横200mm、厚さ2mm)で繊維を1束ごとに挟み、加熱プレス装置で1.39MPaの圧力にて50℃で10分加熱加圧した。その後に、乾燥器により十分に水分を取り除き、7.3gの繊維シート(繊維基材)を5枚作製した。
前記繊維シート5枚(繊維の総量:36.5g)を重ねた後、サリチルアルデヒド3.5g(繊維(繊維シート)100質量部に対して9.6質量部)を均一に浸み込ませた。次に、繊維シートの表面にフラン樹脂40gを塗布してから前記熱硬化性樹脂組成物を含浸させた。ステンレス製の金型(縦横200mm、深さ2mm)に離型剤(ナガセケムテックス株式会社製、Mould Release Agents QZ 13)を塗布した後、熱硬化性樹脂組成物を含浸させた繊維シートと、熱硬化性樹脂組成物とを金型に充填した。その後、加熱プレス装置に金型を設置し、1.39MPaの圧力にて、30℃で2時間、65℃で3時間、115℃で4時間、最後に145℃で4時間加熱加圧し、フラン樹脂を含む成形体(硬化物)を得た。
得られた成形体について、以下に示す試験を行い、曲げ強度と曲げ弾性率とを評価した。
繊維シートに含ませるサリチルアルデヒドの量を7.0g(繊維(繊維シート)100質量部に対して19.4質量部)とした以外は実施例1と同様の方法で、熱硬化性樹脂組成物の調製、繊維シートの作製、硬化物の作製、及び、曲げ試験を実施した。得られた曲げ強度及び曲げ弾性率の平均値を表1に示す。
繊維シートに含ませるサリチルアルデヒドの量を11.7g(繊維(繊維シート)100質量部に対して32.4質量部)とした以外は実施例1と同様の方法で、熱硬化性樹脂組成物の調製、繊維シートの作製、硬化物の作製、及び、曲げ試験を実施した。得られた曲げ強度及び曲げ弾性率の平均値を表1に示す。
過酸化水素とサリチルアルデヒドを配合しない以外は実施例1と同様の方法で、熱硬化性樹脂組成物の調製、繊維シートの作製、硬化物の作製、及び、曲げ試験を実施した。得られた曲げ強度及び曲げ弾性率の平均値を表1に示す。
サリチルアルデヒドを配合しない以外は実施例1と同様の方法で、熱硬化性樹脂組成物の調製、繊維シートの作製、硬化物の作製、及び、曲げ試験を実施した。得られた曲げ強度及び曲げ弾性率の平均値を表1に示す。
過酸化水素を配合しない以外は実施例3と同様の方法で、熱硬化性樹脂組成物の調製、繊維シートの作製、硬化物の作製、及び、曲げ試験を実施した。得られた曲げ強度及び曲げ弾性率の平均値を表1に示す。
Claims (10)
- 繊維に含浸した樹脂組成物を含む熱硬化性樹脂材料であって、
前記樹脂組成物がフラン樹脂、硬化剤及び過酸化物を含有し、
前記繊維が、アルデヒドを含む繊維基材である、熱硬化性樹脂材料。 - 繊維、フラン樹脂、硬化剤及び過酸化物を含有し、
前記繊維が、アルデヒドを含む繊維状充填材である、熱硬化性樹脂材料。 - 前記過酸化物が、過酸化水素、過炭酸ナトリウム、過酸化酢酸、過硫酸アンモニウム、過硫酸カリウム、過硫酸ナトリウム、次亜塩素酸及び亜塩素酸から選ばれる1種以上を含む、請求項1又は2に記載の熱硬化性樹脂材料。
- 前記繊維が、植物繊維、炭素繊維、合成繊維及び無機繊維から選ばれる1種以上を含む、請求項1〜3のいずれか一項に記載の熱硬化性樹脂材料。
- 前記過酸化物の含有量が前記フラン樹脂100質量部に対して0.01〜5質量部である、請求項1〜4のいずれか一項に記載の熱硬化性樹脂材料。
- 前記アルデヒドの含有量が前記繊維100質量部に対して0.1〜100質量部である、請求項1〜5のいずれか一項に記載の熱硬化性樹脂材料。
- 請求項1〜6のいずれか一項に記載の熱硬化性樹脂材料の硬化物。
- 繊維に含浸した樹脂組成物を含む熱硬化性樹脂材料を硬化して硬化物を得る工程を備え、
前記樹脂組成物がフラン樹脂、硬化剤及び過酸化物を含有し、
前記繊維が、アルデヒドを含む繊維基材である、硬化物の製造方法。 - 繊維、フラン樹脂、硬化剤及び過酸化物を含有する熱硬化性樹脂材料を硬化して硬化物を得る工程を備え、
前記繊維が、アルデヒドを含む繊維状充填材である、硬化物の製造方法。 - 前記熱硬化性樹脂材料を加圧下で加熱硬化して前記硬化物を得る、請求項8又は9に記載の硬化物の製造方法。
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