CN116925317B - 一种地面抬升用聚氨酯树脂组合物及其制备方法 - Google Patents
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Abstract
本发明公开了一种地面抬升用聚氨酯树脂组合物及其制备方法,包括,准备物料A:改性异氰酸酯;准备物料B:硬泡聚醚多元醇DC‑380、聚酯多元醇PS‑3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC‑5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;准备物料C:去离子水;制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物。通过硬泡聚醚多元醇DC‑380、聚酯多元醇PS‑3152、硬泡聚醚多元醇N307的协同作用,制得的产物抗压强度更佳,同时,成样速度更快。
Description
技术领域
本发明属于聚氨酯树脂组合物领域,具体涉及到一种地面抬升用聚氨酯树脂组合物及其制备方法。
背景技术
目前,地面抬升处理有多种,其中,注浆加固提升地面是其中一项重要的加固技术,其作用机理为通过压力将可固化的化学浆液或水泥浆液注入地基土的裂缝或孔隙,以改善地基的物理力学性能,提高地面抬升效果。
聚氨酯注浆工艺是一种进行地基基础加固的工艺,其作用机理是在地基周围,采用预先钻孔后插入注浆管,采用注浆设备将聚氨酯泡沫反应原料,注入需要加固的地基中,通过聚氨酯泡沫反应对加固土体进行充填、渗透、挤密、置换和加固作用,聚氨酯注浆工艺也可用于地面抬升
但是,目前,聚氨酯注浆中用到的聚氨酯树脂组合物其用于地基加固和地面抬升,处理效果单一,且加固效果有限。
发明内容
鉴于上述和/或现有技术中存在的问题,提出了本发明。
因此,本发明的目的是,克服现有技术中的不足,提供一种地面抬升用聚氨酯树脂组合物。
为解决上述技术问题,本发明提供了如下技术方案:一种地面抬升用聚氨酯树脂组合物,包括,
物料A:改性异氰酸酯;
物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
物料C:去离子水;
其中,物料A与物料B的质量比为0.5~1:0.5~1,物料C与物料B的质量比为0.004~0.006:1;
其中,以物料B中各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为40~50%,所述聚酯多元醇PS-3152为6~8%,所述硬泡聚醚多元醇N307为10~20%,所述溴化脂肪聚醚为2~3%,所述五甲基二乙烯三胺PC-5为0.1~0.3%,所述催化剂33LV为0.1~0.3%,所述延迟催化剂A300为0.1~0.3%,所述三乙醇胺0.3~0.6%,所述胶黏剂NMI为0.05~0.1%,所述硅油B8870为0.3~0.6%,所述碳酸钙粉末为1~2%,所述粉煤灰为3~4%,余量为丙酮。
作为本发明所述地面抬升用聚氨酯树脂组合物的一种优选方案,其中:所述物料A与物料B的质量比为0.8~1:0.8~1。
作为本发明所述地面抬升用聚氨酯树脂组合物的一种优选方案,其中:所述物料A与物料B的质量比为1:1。
作为本发明所述地面抬升用聚氨酯树脂组合物的一种优选方案,其中:所述物料C与物料B的质量比为0.006:1。
作为本发明所述地面抬升用聚氨酯树脂组合物的一种优选方案,其中:以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45~50%,所述聚酯多元醇PS-3152为7~8%,所述硬泡聚醚多元醇N307为15~20%,所述溴化脂肪聚醚为2.5~3%,所述五甲基二乙烯三胺PC-5为0.2~0.3%,所述催化剂33LV为0.2~0.3%,所述延迟催化剂A300为0.2~0.3%,所述三乙醇胺0.4~0.6%,所述胶黏剂NMI为0.08~0.1%,所述硅油B8870为0.4~0.6%,所述碳酸钙粉末为1.5~2%,所述粉煤灰为3.5~4%,余量为丙酮。
作为本发明所述地面抬升用聚氨酯树脂组合物的一种优选方案,其中:以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为2%,所述粉煤灰为4%,余量为丙酮。
本发明的再一个目的是,克服现有技术中的不足,提供一种地面抬升用聚氨酯树脂组合物的制备方法,包括,
准备物料A:改性异氰酸酯;
准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物。
本发明有益效果:
(1)本发明提供一种地面抬升用聚氨酯树脂组合物,通过硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307的共同作用,制得的产物抗压强度更佳,同时,成样速度更佳,发泡效果佳,在地面抬升方面具有良好的效果。
(2)本发明优化设计聚氨酯树脂组合物配方,添加碳酸钙粉末、粉煤灰,两者协同作用,提高产物抗压强度更佳。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合说明书实施例对本发明的具体实施方式做详细的说明。
本发明中改性异氰酸酯,型号为WANNATE® PM-200,普通市售产品;
聚酯多元醇PS-3152,普通市售产品;
聚醚多元醇DC-380,羟值380mgKOH/g,普通市售产品;
硬泡聚醚多元醇N307,普通市售产品;
溴化脂肪聚醚:阻燃聚醚多元醇IXOL B 251,普通市售产品。
五甲基二乙烯三胺PC-5:聚氨酯催化剂PC-5,为无色或微黄色透明液体,能溶于水、醚及醇类溶剂,能吸收空气中的水分及二氧化碳,相对密度(20℃)0.8302~0.8306,普通市售产品;
催化剂33LV:胺催化剂33LV,普通市售产品;
延迟催化剂A300:聚氨酯催化剂A300,普通市售产品;
三乙醇胺:普通市售产品;
胶黏剂NMI:N-甲基咪唑(NMI),普通市售产品,可作为粘合剂;
硅油B8870、碳酸钙粉末、粉煤灰、丙酮均为普通市售产品。
本发明实施例中力学性能的测定:
(1)制作试样模具:
试样所用模具统一采用直径6cm、高12cm的PVC管(一端开口),将提前制作好的PVC管模具切开,便于试样成型后拆模,并在PVC管内部均匀涂上凡士林,再用胶带粘结紧实。
(2)圆柱体试样制作:
取出砂样,分别于对应剂量的A液充分混合,再用击实仪将拌合好的砂样在事先准备好的PVC管模中击实成型,用一根直径为2mm的钢丝,在70mm处提前做好标记,表面打磨光滑后插入事先振捣成型试样,并慢慢拔出,留出一个深70mm,直径2mm的孔洞,作注浆预留孔洞;
用注射器将纯水轻轻注入已经成型试样内,使其自然下渗至不再下渗为止,记录纯水体积作为本发明试验中水的添加量,即C料添加量;
将 B液通过预留孔利用注射器注入试样;
完成注浆后,待聚氨酯溶液反应完成,轻轻撕开胶带,打开 PVC 管模,对应管模编号将试样进行编号再放入养护室养护至规定时间6h。
(3)测试圆柱体试样无侧限抗压强度:
将养护至预定龄期的试样,利用万能试验机分别测出对应的抗压强度,观察并记录试样破坏过程,最后将试验所得数据整理并详细记录。
本发明中膨胀倍率测试:参照CJJT 260—2016,选用塑料杯测定材料的膨胀倍率(n),每个变量测试3组试样。聚氨酯膨胀倍率n计算公式:
n = V2/V1
其中,V1为聚氨酯混合液的体积,cm3;V2为聚氨酯膨胀固化的体积,cm3。
实施例1:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为2%,所述粉煤灰为4%,余量为丙酮。
对比例1:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:硬泡聚醚多元醇DC-380、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为67%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为2%,所述粉煤灰为4%,余量为丙酮。
对比例2:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述聚酯多元醇PS-3152为20%,硬泡聚醚多元醇N307为47%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为2%,所述粉煤灰为4%,余量为丙酮。
膨胀倍率测试:
将实施例1、对比例1和对比例2的聚氨酯树脂组合物中的物料A、物料B和物料C放入模具中混合10秒,记为聚氨酯混合液的体积V1;反应5分钟后,记为聚氨酯膨胀固化的体积V2;测试3组试样取平均值,计算膨胀倍率。
结果见表1。
表1
可以看出,本发明实施例1的聚氨酯树脂组合物配方,其膨胀倍率达到23.2,发泡倍数高,可以用于地面抬升;同时,相比对比例1可以看出,通过硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307的共同作用可提高膨胀倍率,更有利于地面抬升效果。
对比例3:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、粉煤灰、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述粉煤灰为6%,余量为丙酮。
对比例4:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为6%,余量为丙酮。
对比例5:
一种地基注浆用聚氨酯树脂组合物及其制备方法,主要步骤:
(1)准备物料A:改性异氰酸酯;
(2)准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、丙酮;
(3)准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物;
其中,物料A与物料B的质量比为1:1,物料C与物料B的质量比为0.006:1;
其中,以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,余量为丙酮。
力学性能的测定,测定数据见表2。
表2
可以看出,通过硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307的共同作用,制得的产物抗压强度更佳,同时,成样速度更快。添加碳酸钙粉末、粉煤灰,两者协同作用,提高产物抗压强度更佳。
即:本发明中的聚氨酯树脂组合物配方,具有良好的力学性能,可用于地面抬升的作用。
说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的精神和范围,其均应涵盖在本发明的范围当中。
Claims (7)
1.一种地面抬升用聚氨酯树脂组合物,其特征在于:包括,
物料A:改性异氰酸酯,其型号为WANNATE® PM-200;
物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
物料C:去离子水;
其中,物料A与物料B的质量比为0.5~1:0.5~1,物料C与物料B的质量比为0.004~0.006:1;
其中,以物料B中各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为40~50%,所述聚酯多元醇PS-3152为6~8%,所述硬泡聚醚多元醇N307为10~20%,所述溴化脂肪聚醚为2~3%,所述五甲基二乙烯三胺PC-5为0.1~0.3%,所述催化剂33LV为0.1~0.3%,所述延迟催化剂A300为0.1~0.3%,所述三乙醇胺0.3~0.6%,所述胶黏剂NMI为0.05~0.1%,所述硅油B8870为0.3~0.6%,所述碳酸钙粉末为1~2%,所述粉煤灰为3~4%,余量为丙酮。
2.如权利要求1所述的地面抬升用聚氨酯树脂组合物,其特征在于:所述物料A与物料B的质量比为0.8~1:0.8~1。
3.如权利要求1或2所述的地面抬升用聚氨酯树脂组合物,其特征在于:所述物料A与物料B的质量比为1:1。
4.如权利要求3所述的地面抬升用聚氨酯树脂组合物,其特征在于:所述物料C与物料B的质量比为0.006:1。
5.如权利要求4所述的地面抬升用聚氨酯树脂组合物,其特征在于:以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45~50%,所述聚酯多元醇PS-3152为7~8%,所述硬泡聚醚多元醇N307为15~20%,所述溴化脂肪聚醚为2.5~3%,所述五甲基二乙烯三胺PC-5为0.2~0.3%,所述催化剂33LV为0.2~0.3%,所述延迟催化剂A300为0.2~0.3%,所述三乙醇胺0.4~0.6%,所述胶黏剂NMI为0.08~0.1%,所述硅油B8870为0.4~0.6%,所述碳酸钙粉末为1.5~2%,所述粉煤灰为3.5~4%,余量为丙酮。
6.如权利要求1或5所述的地面抬升用聚氨酯树脂组合物,其特征在于:以物料B中以各原料的质量为百分百计,所述硬泡聚醚多元醇DC-380为45%,所述聚酯多元醇PS-3152为7%,所述硬泡聚醚多元醇N307为15%,所述溴化脂肪聚醚为3%,所述五甲基二乙烯三胺PC-5为0.3%,所述催化剂33LV为0.3%,所述延迟催化剂A300为0.3%,所述三乙醇胺为0.6%,所述胶黏剂NMI为0.1%,所述硅油B8870为0.6%,所述碳酸钙粉末为2%,所述粉煤灰为4%,余量为丙酮。
7.权利要求1~6中任一所述的地面抬升用聚氨酯树脂组合物的制备方法,其特征在于:包括,
准备物料A:改性异氰酸酯,其型号为WANNATE® PM-200;
准备物料B:硬泡聚醚多元醇DC-380、聚酯多元醇PS-3152、硬泡聚醚多元醇N307、溴化脂肪聚醚、五甲基二乙烯三胺PC-5、催化剂33LV、延迟催化剂A300、TEOA三乙醇胺、胶黏剂NMI、硅油B8870、碳酸钙粉末、粉煤灰、丙酮;
准备物料C:去离子水;
制备聚氨酯树脂组合物:将物料A和准备物料B混合均匀后,加入物料C,制得所述组合物。
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