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clytze_520金蟲 (小有名氣)
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[求助]
請蟲友幫忙翻譯這段,謝謝! 已有1人參與
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| A curing agent for epoxy resins prepared by reacting 25- and 26-bis(aminomethyl)-bicyclo[2.2.1]heptanes (1 equivalent of the active hydrogen in the amino group) with an epoxy resin (a reaction product of bisphenols or a novolak resin with epichlorohydrin; an epoxy equivalent of 150-300 g/eq.; two or more epoxy groups per molecule; bisphenol-A diglycidyl ether or bisphenol-F diglycidyl ether in particular)(0.025-0.50 equivalents of the epoxy group). The reaction temperature is 40.degree.-120.degree. C. The amount of the curing agent is within the range of 20-75 parts by weight relative to 100 parts by weight of an epoxy resin to be cured. The curing agent has a high curing rate at a room temperature and the epoxy resins cured by it have a good appearance as well as excellent adhesion water resistance and chemical resistance. Therefore the curing agent is suitable for paints civil engineering and construction materials adhesives casting resins laminates etc. |
| 環(huán)氧樹脂的固化劑是通過25、26-二(氨甲基)雙環(huán)[2.2.1]庚烷(與氨基酸中的氫活性相同)與環(huán)氧樹脂反應(yīng)制得的,并且這種環(huán)氧樹脂(是雙酚的反應(yīng)產(chǎn)物或者是酚醛清漆樹脂與環(huán)氧氯丙烷結(jié)合的產(chǎn)物,一個(gè)環(huán)氧當(dāng)量大約是150-300g/當(dāng)量,兩個(gè)或兩個(gè)以上環(huán)氧樹脂組為一個(gè)分子,尤其是雙酚A環(huán)氧丙醚或者雙酚F環(huán)氧丙醚是這個(gè)樣子的)(為0.025-0.5環(huán)氧基的等價(jià)物)。反應(yīng)溫度為40--120度,如果加入環(huán)氧樹脂的量為100質(zhì)量數(shù),則固化劑應(yīng)加入量的質(zhì)量數(shù)為20-75。固化劑在室溫下就有很高的固化率并且環(huán)氧樹脂擁有一個(gè)良好的表面以及優(yōu)異的附著力、耐水性和耐化學(xué)腐蝕性。因此,固化劑適用于油漆土木工程和建筑材料粘合劑鑄造樹脂復(fù)合材料等。 |

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