CN107474204A - 一种改性酚醛泡沫保温材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种改性酚醛泡沫保温材料,由以下材料组成:钼酸20‑40,苯酚60‑80,甲醛40‑70,氢氧化钠10‑20,戊二醛10‑15,短切芳纶纤维10‑15份,硅烷偶联剂1‑5份,发泡剂正戊烷1‑5份,固化剂AB喹啉类化合物6‑8份,表面活性剂4‑7份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。制备步骤为:1)将钼酸、苯酚、氢氧化钠投入反应釜,反应温度为100℃,反应时长2H,再加入甲醛、戊二醛进行加成反应及缩聚反应,反应时长1H;2)将硅烷偶联剂浸泡短切芳纶纤维;3)将步骤1和步骤2混合,然后再加入搅拌均匀;4)再依次加入表面活性剂、发泡剂、固化剂进行搅拌;5)倒入模具后闭模,置于70℃的烘箱中固化1H,取出后冷却至室温。本发明具有掉粉率低、抗压能力强的优点。
Description
技术领域
本发明涉及一种改性酚醛泡沫保温材料及其制备方法。
背景技术
酚醛保温板和聚氨酯硬泡同属有机类热固性高效保温材料,尤其近年建筑节能率的逐渐提高,应用保温材料技术性能越来越高,市场需求量越来越大。由于酚醛保温板的脆性大,酚醛保温板在使用时存在掉粉、弹性低、压缩强度低,导热系数不达标等问题,固有优异防火性能没能得到很好利用,因此,影响该产品应用技术的扩展,同时给运输、施工带来很多不便。尤其拉拔强度低,不易满足相关标准要求。
发明内容
发明目的:本发明的目的是为了解决现有技术中的不足,提供一种掉粉率低、抗压和抗剪切能力都强的一种改性酚醛泡沫保温材料及其制备方法。
技术方案:本发明一种改性酚醛泡沫保温材料,由以下重量份原料组成:
钼酸20-40,苯酚60-80,甲醛40-70,氢氧化钠10-20,戊二醛10-15,短切芳纶纤维10-15份,硅烷偶联剂1-5份,发泡剂正戊烷1-5份,固化剂AB喹啉类化合物6-8份,表面活性剂4-7份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
一种改性酚醛泡沫保温材料的制备方法,包括以下步骤 :
1)将钼酸、苯酚、氢氧化钠投入反应釜反应温度为100℃,反应时长2H, ,合成钼酸苯酯;再加入甲醛、戊二醛进行加成反应及缩聚反应,反应时长1H;
2)将硅烷偶联剂浸泡短切芳纶纤维;
3)将步骤1和步骤2混合,然后再加入搅拌均匀;
4)再依次加入表面活性剂、发泡剂、固化剂进行搅拌;
5)倒入模具后闭模,置于70℃的烘箱中固化1H,取出后冷却至室温。
有益效果:
本发明中的短切芳纶纤维提高了整体的抗压、抗切能力,与酚醛泡沫结合,提高了整体的抗冲击性,也减少了酚醛泡沫的掉渣现象的发生;硅烷偶联剂提高了短切芳纶纤维与酚醛泡沫的粘结性;戊二醛有较长的碳链,从而提高了整体的韧性,也使整体的吸水率下降。
具体实施方式
以下由特定的具体实施例说明本发明的实施方式,熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效。
实施例1,
原料:钼酸20,苯酚60,甲醛40,氢氧化钠10,戊二醛10,短切芳纶纤维10份,硅烷偶联剂1份,发泡剂正戊烷1份,固化剂AB喹啉类化合物6份,表面活性剂4份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
新型改性酚醛泡沫保温材料的制备方法的制备步骤 :
1)将钼酸、苯酚、氢氧化钠投入反应釜,反应温度为100℃,反应时长2H,再加入甲醛、戊二醛进行加成反应及缩聚反应,反应时长1H;
2)将硅烷偶联剂浸泡短切芳纶纤维;
3)将步骤1和步骤2混合,然后再加入搅拌均匀;
4)再依次加入表面活性剂、发泡剂、固化剂进行搅拌;
5)倒入模具后闭模,置于70℃的烘箱中固化1H,取出后冷却至室温。
实施例2,
原料:钼酸40,苯酚80,甲醛70,氢氧化钠20,戊二醛15,短切芳纶纤维15份,硅烷偶联剂5份,发泡剂正戊烷5份,固化剂AB喹啉类化合物8份,表面活性剂7份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
制备步骤如实施例1。
实施例3,
原料:钼酸20,苯酚80,甲醛70,氢氧化钠20,戊二醛15,短切芳纶纤维15份,硅烷偶联剂5份,发泡剂正戊烷5份,固化剂AB喹啉类化合物8份,表面活性剂7份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
制备步骤如实施例1。
实施例4,
原料:钼酸35;苯酚60,甲醛40,氢氧化钠10,戊二醛10,短切芳纶纤维10份,硅烷偶联剂1份,发泡剂正戊烷1份,固化剂AB喹啉类化合物6份,表面活性剂4份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。。
制备步骤如实施例1。
实施例5,
原料:钼酸35,苯酚80,甲醛70,氢氧化钠20,戊二醛15,短切芳纶纤维15份,硅烷偶联剂5份,发泡剂正戊烷5份,固化剂AB喹啉类化合物8份,表面活性剂7份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
制备步骤如实施例1。
实施例6,
原料:钼酸35,苯酚75,甲醛50,氢氧化钠15,戊二醛10,短切芳纶纤维15份,硅烷偶联剂3份,发泡剂正戊烷2份,固化剂AB喹啉类化合物8份,表面活性剂5份,其中,表面活性剂为硅油和TWEEN80 1:1的混合物。
制备步骤如实施例1。
对上述实施例制成的酚醛泡沫板,通过冲击机进行5分钟常规冲击。观察实施例1到实施例6的变形和掉渣情况,经过观察发现,本发明实施例1到实施例6所制成的酚醛泡沫板几乎都无掉渣,变形也甚微,实施例3的变形最小。再将上述实施例制成的酚醛泡沫板放在太阳穴暴晒一周,然后拍打,最终的实验结果表明,本发明的掉渣率极低。
上述具体实施方式,仅为说明本发明的技术构思和结构特征,目的在于让熟悉此项技术的相关人士能够据以实施,但以上内容并不限制本发明的保护范围,凡是依据本发明的精神实质所作的任何等效变化或修饰,均应落入本发明的保护范围之内。
Claims (3)
1.一种改性酚醛泡沫保温材料,其特征在于,由以下重量份原料组成:
钼酸20-40,苯酚60-80,甲醛40-70,氢氧化钠10-20,戊二醛10-15,短切芳纶纤维10-15份,硅烷偶联剂1-5份,发泡剂正戊烷1-5份,固化剂AB喹啉类化合物6-8份,表面活性剂4-7份。
2.根据权利要求1所述的一种改性酚醛泡沫保温材料,其特征在于,所述表面活性剂为硅油和TWEEN80为1:1的混合物。
3.一种改性酚醛泡沫保温材料的制备方法,其特征在于,包括以下步骤 :
1)将钼酸、苯酚、氢氧化钠投入反应釜,反应温度为100℃,反应时长2H,再加入甲醛、戊二醛进行加成反应及缩聚反应,反应时长1H;
2)将硅烷偶联剂浸泡短切芳纶纤维;
3)将步骤1和步骤2混合,然后再加入搅拌均匀;
4)再依次加入表面活性剂、发泡剂、固化剂进行搅拌;
5)倒入模具后闭模,置于70℃的烘箱中固化1H,取出后冷却至室温。
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Cited By (3)
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CN108752853A (zh) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | 一种二氧化钛纤维改性酚醛树脂保温材料的制备方法 |
CN108752854A (zh) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | 一种改性酚醛树脂保温材料 |
CN110467793A (zh) * | 2019-09-27 | 2019-11-19 | 海隆石油产品技术服务(上海)有限公司 | 用于钢质管道外壁的保温材料及其制备方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108752853A (zh) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | 一种二氧化钛纤维改性酚醛树脂保温材料的制备方法 |
CN108752854A (zh) * | 2018-04-19 | 2018-11-06 | 铜仁市万山区建辉新型环保建材有限公司 | 一种改性酚醛树脂保温材料 |
CN110467793A (zh) * | 2019-09-27 | 2019-11-19 | 海隆石油产品技术服务(上海)有限公司 | 用于钢质管道外壁的保温材料及其制备方法 |
CN110467793B (zh) * | 2019-09-27 | 2022-04-12 | 海隆石油产品技术服务(上海)有限公司 | 用于钢质管道外壁的保温材料及其制备方法 |
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