CN101348614B - 酚醛树脂改性乳化沥青 - Google Patents
酚醛树脂改性乳化沥青 Download PDFInfo
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- CN101348614B CN101348614B CN200810196269A CN200810196269A CN101348614B CN 101348614 B CN101348614 B CN 101348614B CN 200810196269 A CN200810196269 A CN 200810196269A CN 200810196269 A CN200810196269 A CN 200810196269A CN 101348614 B CN101348614 B CN 101348614B
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229920001568 phenolic resin Polymers 0.000 title claims abstract description 12
- 239000005011 phenolic resin Substances 0.000 title claims abstract description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 39
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 15
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
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- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
本发明公开了一种酚醛树脂改性乳化沥青。属改性乳化沥青。主要用于摩擦材料、耐火材料、铸造材料等领域。是在乳化沥青中加入酚醛树脂融和制成，上述各组分的重量份为：乳化沥青65份，合成树脂35份。所得酚醛树脂改性乳化沥青的软化点大于95度，游离酚小于1.5％，冷抗折强度大于6MPa。本发明的有益效果是：生产成本低，节约能源；产品的流动性好，固含量高；挥发酚含量低，减少了环境污染和对操作人员的伤害。
Description
技术领域
本发明涉及一种改性乳化沥青，具体是一种酚醛树脂改性乳化沥青。主要用于摩擦材料、耐火材料、铸造材料等领域。
背景技术
酚醛树脂改性乳化沥青已被大量应用于飞机、船舶、车辆、隧道、油井、矿山等防火要求严格的墙体，内外板材，部件等。且现在已转向民用建筑。在国内，随着节能和环保形势的需要，绝热板材的市场逐步扩大，仅屋顶隔热材料每年就需消耗1亿M3，墙体材料的需求更不计其数，市场潜力巨大。目前需要解决的问题是如何提高其流动性和机械强度。
发明内容
本发明提供一种酚醛树脂改性乳化沥青，具有流动性好和机械强度高的特点。
本发明是以如下技术方案实现的：一种酚醛树脂改性乳化沥青，是在乳化沥青中加入合成树脂融和制成，上述各组分的重量份为：乳化沥青65份，酚醛树脂35份；
所述酚醛树脂是用下述方法制备的：苯酚和甲醛在酸性催化剂的作用下，在82℃下反应3个小时，再将温度提高到105℃再反应2个小时，然后减压脱水至含水率2％，后加入苯酚和甲醛总重量0.1％的纯碱中和后冷却得酚醛树脂；
所述苯酚与甲醛的重量比为1：0.75；
所述酸性催化剂为浓度99％的草酸或浓度37％盐酸，草酸加入量为苯酚和甲醛重量的2-3％；盐酸加入量为苯酚和甲醛重量的1％。
改性后乳化沥青的主要技术指标：软化点大于95度，游离酚小于1.5％，冷抗折强度大于6MPa。产品的固含量高，流动性好，固化强度设置。
用本发明改性的乳化沥青加工成的绝热材料的强度提高到12mpa，而其他树脂在相同的条件下强度仅为4.3mpa，同时还大大降低产品的挥发酚含量，减少了环境污染和对操作人员的伤害。
本发明的有益效果是：生产成本低，节约能源；产品的挥发酚含量低，减少了环境污染和对操作人员的伤害。
具体实施方式
实施例1
酚醛树脂的制备：将苯酚与甲醛的按重量比1：0.75配料；按苯酚和甲醛重量的2％加入浓度99％的草酸；在82℃下反应3个小时，再将温度提高到105℃再反应2个小时，然后减压脱水至含水率2％，后加入苯酚和甲醛总重量0.1％的纯碱中和后冷却得酚醛树脂。
将乳化沥青65公斤，酚醛树脂35公斤搅拌融和得酚醛树脂改性乳化沥青。
经检测，所得酚醛树脂改性乳化沥青的软化点大于95度，游离酚小于1.5％，冷抗折强度大于6MPa。
Claims (1)
1.一种酚醛树脂改性乳化沥青的制备方法，其特征是：在乳化沥青中加入酚醛树脂融和制成，上述各组分的重量份为：乳化沥青65份，酚醛树脂35份；
所述酚醛树脂是用下述方法制备的：苯酚和甲醛在酸性催化剂的作用下，在82℃下反应3个小时，再将温度提高到105℃再反应2个小时，然后减压脱水至含水率2％，后加入苯酚和甲醛总重量0.1％的纯碱中和后冷却得酚醛树脂；
所述苯酚与甲醛的重量比为1∶0.75；
所述酸性催化剂为浓度99％的草酸或浓度37％盐酸，草酸加入量为苯酚和甲醛重量的2-3％；盐酸加入量为苯酚和甲醛重量的1％。
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| CN101348614B true CN101348614B (zh) | 2012-10-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103788670B (zh) * | 2014-01-20 | 2016-04-13 | 南通东南公路工程有限公司 | 一种沥青酚醛防水材料 |
| CN108793830B (zh) * | 2017-04-26 | 2021-05-18 | 中路高科(北京)公路技术有限公司 | 一种水溶性酚醛树脂改性乳化沥青混凝土、其制备方法及其用途 |
| CN115353746B (zh) * | 2022-07-20 | 2023-07-04 | 太原理工大学 | 一种离子交换树脂改性乳化沥青及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137547A (zh) * | 1995-02-24 | 1996-12-11 | 花王株式会社 | 沥青添加剂和沥青组合物 |
| CN101218304A (zh) * | 2005-05-02 | 2008-07-09 | 伊诺弗斯公司 | 使用粒状生胶的改性沥青粘合剂材料和制造改性沥青粘合剂的方法 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137547A (zh) * | 1995-02-24 | 1996-12-11 | 花王株式会社 | 沥青添加剂和沥青组合物 |
| CN101218304A (zh) * | 2005-05-02 | 2008-07-09 | 伊诺弗斯公司 | 使用粒状生胶的改性沥青粘合剂材料和制造改性沥青粘合剂的方法 |
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