| 多羟甲基苯酚改性脲醛树脂的研究 |
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| 引用本文： | 荣磊,顾继友,谭海彦,高振华.多羟甲基苯酚改性脲醛树脂的研究[J].中国胶粘剂,2010,19(9). |
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| 作者姓名： | 荣磊 顾继友 谭海彦 高振华 |
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| 作者单位： | 东北林业大学材料科学与工程学院,黑龙江,哈尔滨,150040 |
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| 摘 要： | 脲醛树脂(UF)是木材工业的主要胶种,为了提高UF的胶接性能和耐水性,同时实现低n(甲醛)∶n(尿素)比例UF中尿素的作用,采用自制的多羟甲基苯酚对UF进行改性,并通过胶合板的压制试验和差示扫描量热(DSC)法来研究改性UF的使用性能。结果表明:多羟甲基苯酚加入时间对UF诸多性能产生明显的影响;当质量分数为10%的多羟甲基苯酚在UF合成末期投入时,所得UF的综合性能相对最佳;与未改性UF胶粘剂压制的胶合板相比,由改性UF胶粘剂压制的胶合板具有相对较高的干强度(1.86 MPa)和湿强度(1.82 MPa),其甲醛释放量降低了30.8%。
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| 关 键 词： | 多羟甲基苯酚 脲醛树脂 改性 胶接强度 甲醛释放量 |
Study on urea formaldehyde resin modified by multi-hydroxymethyl phenol |
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| RONG Lei,GU Ji-you,TAN Hai-yan,GAO Zhen-hua.Study on urea formaldehyde resin modified by multi-hydroxymethyl phenol[J].China Adhesives,2010,19(9). |
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| Authors: | RONG Lei GU Ji-you TAN Hai-yan GAO Zhen-hua |
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| Affiliation: | RONG Lei,GU Ji-you,TAN Hai-yan,GAO Zhen-hua(College of Material Science and Engineering,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | The urea formaldehyde resin(UF) is a main adhesive in wood industry.In order to improve the bonding performance and water resistance of UF as well as achieve the efficiency of urea in UF with low F/U molar ratio,the UF was modified by self-made multi-hydroxymethyl phenol,and the performances of modified UF were characterized by pressed test of plywood and differential scanning calorimetry(DSC).The results showed that the influences of feeding time of multi-hydroxymethyl phenol on many properties of UF were ... |
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| Keywords: | multi-hydroxymethyl phenol UF modified bonding strength formaldehyde emission |
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