CN110157027A - 一种耐老化耐磨损外墙保温板及其制备方法 - Google Patents
一种耐老化耐磨损外墙保温板及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种耐老化耐磨损外墙保温板及其制备方法,所述耐老化耐磨损外墙保温板由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下原料:环氧树脂、纳米二氧化钛、2,4‑二羟基二苯甲酮、4‑苯甲酰氧基‑2,2,6,6‑四甲基哌啶、偶联剂、固化剂和环氧树脂稀释液;其制备方法包括以下步骤:S1、准备耐磨涂料的原料;S2、耐磨涂料的制备;S3、改性聚氨酯基板上复合耐磨涂层。本发明提出的外墙保温板,保温、耐磨和稳定性好,使用寿命长,耐磨涂层与改性聚氨酯基板的结合力强,制备方法简单。
Description
技术领域
本发明涉及建筑材料技术领域,尤其涉及一种耐老化耐磨损外墙保温板及其制备方法。
背景技术
外墙保温板是工程建设中使用频率较高的建筑材料,尤其是对于寒冷地区,外墙保温板可以保护内保温层遭受装修时的破坏,同时由于其在建筑墙体的外侧,可以在起到保温的同时还能降低建筑造价,增加房屋的使用面积,取得较高的经济效益,而且外墙保温板还能避免墙体室外与室内之间的温差较大导致结构变型,进而产生较大的应力,影响主体结构的使用寿命。但由于外墙保温板位于建筑墙体的外侧,其常年经受风吹、日晒和雨淋,因此使用寿命普遍较短,外墙保温板在使用一段时间后容易发生老化、霉变、开裂的现象,影响外墙保温板与建筑墙体的结合力,同时还达不到预想的使用寿命。基于现有技术存在的不足,本发明提出一种耐老化耐磨损外墙保温板及其制备方法。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,而提出的一种耐老化耐磨损外墙保温板及其制备方法。
一种耐老化耐磨损外墙保温板,由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下重量份的原料:环氧树脂100份,纳米二氧化钛1~2份,2,4-二羟基二苯甲酮0.05~0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1~0.2份,偶联剂0.5~0.8份,固化剂0.1~0.3份,环氧树脂稀释液10~20份。
优选的,所述纳米二氧化钛的粒径为80~120nm,所述纳米二氧化钛是通过水热法制备。
优选的,所述2,4-二羟基二苯甲酮和4-苯甲酰氧基-2,2,6,6-四甲基哌啶的质量比为1:2。
优选的,所述耐磨涂料中还包括2~4份化合物(1),其中,化合物(1)的结构式为:
本发明还提出了一种耐老化耐磨损外墙保温板的制备方法,包括以下步骤:
S1、准备耐磨涂料的原料:按照环氧树脂100份,纳米二氧化钛1~2份,2,4-二羟基二苯甲酮0.05~0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1~0.2份,偶联剂0.5~0.8份,固化剂0.1~0.3份,环氧树脂稀释液10~20份、化合物(1)2~4份称取各原料,备用;
S2、耐磨涂料的制备:将步骤S1称取的环氧树脂加入到环氧树脂稀释液中机械搅拌溶解,得环氧树脂胶料,再将步骤S1称取的2,4-二羟基二苯甲酮、4-苯甲酰氧基-2,2,6,6-四甲基哌啶、化合物(1)、偶联剂加入,混合均匀后再依次分散纳米二氧化钛,待分散均匀再将固化剂加入,继续机械搅拌至均匀,即得耐磨涂料;
S3、改性聚氨酯基板上复合耐磨涂层:将步骤S2制备的耐磨涂料第一次均匀喷涂在改性聚氨酯基板的一侧,第一次喷涂耐磨涂料的厚度为0.2~0.3mm,进行烘干,得到带有耐磨涂层的改性聚氨酯基板,然后在改性聚氨酯基板的耐磨涂层的外表面再喷涂步骤S2制备的耐磨涂料,第二次喷涂耐磨涂料的厚度为0.3~0.4mm,再进行烘干即得耐老化耐磨损外墙保温板。
优选的,S3中两次喷涂过程均是在增压环境下进行的,所述增压环境的压力为0.5~1MPa。
与现有技术相比,本发明的有益效果为:
1、本发明提出的外墙保温板的保温性能和耐磨性能优越,稳定性好,长期经受风吹、日晒和雨淋不易发生老化和开裂的现象,耐磨涂层与改性聚氨酯基板的结合力强,外墙保温板的使用寿命长;
2、在改性聚氨酯基板的表面复合两层耐磨涂层,既可以提高改性聚氨酯基板的耐磨性和保温性能,同时又能加固耐磨涂层和改性聚氨酯基板的结合力,延长外墙保温板的使用寿命;
3、本发明使用的耐磨涂料,配方合理,添加合理比例的2,4-二羟基二苯甲酮和4-苯甲酰氧基-2,2,6,6-四甲基哌啶可以协同提高耐磨涂层的抗紫外线功能,使耐磨涂层在阳光的长期暴晒下也能保持优良的耐磨性能,不易发生老化、开裂的现象,持久保持对改性聚氨酯基板的保护。
4、通过在耐磨涂料中引入含氮化合物(1)可以进一步提高保温板的老化时间,并降低保温板的磨损率和导热系数,进而使得保温板的综合性能得到提高。
5、在喷涂过程中增加了环境的压力至0.5~1MPa,提升了耐磨涂层的紧密性和致密性,进一步提高了降低了磨损率和导热系数,进而提高了老化时间。
附图说明
图1为本发明中用于测定耐老化耐磨损外墙保温板导热系数的仪器。
图2为本发明中耐老化耐磨损外墙保温板的电子显微镜照片。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
实施例1
本发明提出的一种耐老化耐磨损外墙保温板,由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下重量份的原料:环氧树脂100份,纳米二氧化钛2份,2,4-二羟基二苯甲酮0.05份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1份,偶联剂0.8份,固化剂0.3份,环氧树脂稀释液20份,化合物(1)2份;
其制备方法,包括以下步骤:
S1、准备耐磨涂料的原料:按照环氧树脂100份,纳米二氧化钛2份,2,4-二羟基二苯甲酮0.05份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1份,偶联剂0.8份,固化剂0.3份,环氧树脂稀释液20份、化合物(1)2份称取各原料,备用;
S2、耐磨涂料的制备:将步骤S1称取的环氧树脂加入到环氧树脂稀释液中机械搅拌溶解,得环氧树脂胶料,再将步骤S1称取的2,4-二羟基二苯甲酮、4-苯甲酰氧基-2,2,6,6-四甲基哌啶、化合物(1)、偶联剂加入,混合均匀后再依次分散纳米二氧化钛,待分散均匀再将固化剂加入,继续机械搅拌至均匀,即得耐磨涂料;
S3、改性聚氨酯基板上复合耐磨涂层:将步骤S2制备的耐磨涂料第一次均匀喷涂在改性聚氨酯基板的一侧,第一次喷涂耐磨涂料的厚度为0.2mm,进行烘干,得到带有耐磨涂层的改性聚氨酯基板,然后在改性聚氨酯基板的耐磨涂层的外表面再喷涂步骤S2制备的耐磨涂料,第二次喷涂耐磨涂料的厚度为0.4mm,再进行烘干即得耐老化耐磨损外墙保温板。其中,S3中两次喷涂过程均是在增压环境下进行的,所述增压环境的压力为0.5MPa。
实施例2
本发明提出的一种耐老化耐磨损外墙保温板,由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下重量份的原料:环氧树脂100份,纳米二氧化钛1.5份,2,4-二羟基二苯甲酮0.08份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.16份,偶联剂0.6份,固化剂0.2份,环氧树脂稀释液15份,化合物(1)3份;
其制备方法,包括以下步骤:
S1、准备耐磨涂料的原料:按照环氧树脂100份,纳米二氧化钛1.5份,2,4-二羟基二苯甲酮0.08份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.16份,偶联剂0.6份,固化剂0.2份,环氧树脂稀释液15份、化合物(1)3份称取各原料,备用;
S2、耐磨涂料的制备:将步骤S1称取的环氧树脂加入到环氧树脂稀释液中机械搅拌溶解,得环氧树脂胶料,再将步骤S1称取的2,4-二羟基二苯甲酮、4-苯甲酰氧基-2,2,6,6-四甲基哌啶、化合物(1)、偶联剂加入,混合均匀后再分散纳米二氧化钛,待分散均匀再将固化剂加入,继续机械搅拌至均匀,即得耐磨涂料;
S3、改性聚氨酯基板上复合耐磨涂层:将步骤S2制备的耐磨涂料第一次均匀喷涂在改性聚氨酯基板的一侧,第一次喷涂耐磨涂料的厚度为0.3mm,进行烘干,得到带有耐磨涂层的改性聚氨酯基板,然后在改性聚氨酯基板的耐磨涂层的外表面再喷涂步骤S2制备的耐磨涂料,第二次喷涂耐磨涂料的厚度为0.4mm,再进行烘干即得耐老化耐磨损外墙保温板。其中,S3中两次喷涂过程均是在增压环境下进行的,所述增压环境的压力为0.8MPa。
实施例3
本发明提出的一种耐老化耐磨损外墙保温板,由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下重量份的原料:环氧树脂100份,纳米二氧化钛1份,2,4-二羟基二苯甲酮0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.2份,偶联剂0.5份,固化剂0.1份,环氧树脂稀释液10份,化合物(1)4份;
其制备方法,包括以下步骤:
S1、准备耐磨涂料的原料:按照环氧树脂100份,纳米二氧化钛1份,2,4-二羟基二苯甲酮0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.2份,偶联剂0.5份,固化剂0.1份,环氧树脂稀释液10份、化合物(1)4份称取各原料,备用;
S2、耐磨涂料的制备:将步骤S1称取的环氧树脂加入到环氧树脂稀释液中机械搅拌溶解,得环氧树脂胶料,再将步骤S1称取的2,4-二羟基二苯甲酮、4-苯甲酰氧基-2,2,6,6-四甲基哌啶、化合物(1)、偶联剂加入,混合均匀后再依次分散纳米二氧化钛,待分散均匀再将固化剂加入,继续机械搅拌至均匀,即得耐磨涂料;
S3、改性聚氨酯基板上复合耐磨涂层:将步骤S2制备的耐磨涂料第一次均匀喷涂在改性聚氨酯基板的一侧,第一次喷涂耐磨涂料的厚度为0.2mm,进行烘干,得到带有耐磨涂层的改性聚氨酯基板,然后在改性聚氨酯基板的耐磨涂层的外表面再喷涂步骤S2制备的耐磨涂料,第二次喷涂耐磨涂料的厚度为0.3mm,再进行烘干即得耐老化耐磨损外墙保温板。其中,S3中两次喷涂过程均是在增压环境下进行的,所述增压环境的压力为1MPa。
对比例1~4
对比例1~4仅对2,4-二羟基二苯甲酮和4-苯甲酰氧基-2,2,6,6-四甲基哌啶的质量比、化合物(1)的用量以及两次喷涂过程中环境压力值进行相应调整,其它参数与实施例1相同。具体对比实验设计方案列于下表1。
表1
上述实施例和对比例中,纳米二氧化钛是通过水热法制备的,粒径为80~120nm。
对实施例1~3及对比例1~4制备的外墙保温板以及市售的聚氨酯外墙保温板分别进行性能测试(GB/T23988-2009、GB1766-2008、GB/T10295-2008),并以市售的聚氨酯外墙保温板的测试结果为标准衡量。实施例和对比例各组外墙保温板的性能的结果如下:
表2
项目 | 实施例1 | 实施例2 | 实施例3 | 对比例1 | 对比例2 | 对比例3 | 对比例4 |
磨损率 | -10.1 | -11.3 | -11.9 | -6.8 | -7.2 | -7.9 | -8.1 |
老化时间 | +21.6 | +22.3 | +23.9 | +9.6 | +10.3 | +11.5 | +14.4 |
导热系数 | -7.5 | -7.8 | -8.0 | -6.4 | -6.5 | -6.7 | -6.9 |
表中,“+”表示相比于市售的聚氨酯外墙保温板的相应参数提高的百分比数值,“-”表示相比于市售的聚氨酯外墙保温板的相应参数降低的百分比数值。
通过表2可以看出:(1)本发明使用的耐磨涂料,配方合理,添加合理比例的2,4-二羟基二苯甲酮和4-苯甲酰氧基-2,2,6,6-四甲基哌啶可以协同提高耐磨涂层的抗紫外线功能,使耐磨涂层在阳光的长期暴晒下也能保持优良的耐磨性能,不易发生老化、开裂的现象,持久保持对改性聚氨酯基板的保护;(2)通过在耐磨涂料中引入含氮化合物(1)可以进一步提高保温板的老化时间,并降低保温板的磨损率和导热系数,进而使得保温板的综合性能得到提高;(3)最后在喷涂过程中增加了环境的压力至0.5~1MPa,提升了耐磨涂层的紧密性和致密性,进一步提高了降低了磨损率和导热系数,进而提高了老化时间。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (5)
1.一种耐老化耐磨损外墙保温板,其特征在于,所述保温板由改性聚氨酯基板和改性聚氨酯基板外表面的耐磨涂层复合而成,所述耐磨涂层由耐磨涂料制备而成,所述耐磨涂料包括以下重量份的原料:环氧树脂100份,纳米二氧化钛1~2份,2,4-二羟基二苯甲酮0.05~0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1~0.2份,偶联剂0.5~0.8份,固化剂0.1~0.3份,环氧树脂稀释液10~20份;其中,所述2,4-二羟基二苯甲酮和4-苯甲酰氧基-2,2,6,6-四甲基哌啶的质量比为1∶2。
2.根据权利要求1所述的一种耐老化耐磨损外墙保温板,其特征在于,所述纳米二氧化钛的粒径为80~120nm,所述纳米二氧化钛是通过水热法制备。
3.根据权利要求1所述的一种耐老化耐磨损外墙保温板,其特征在于,所述耐磨涂料中还包括2~4份化合物(1),其中,化合物(1)的结构式为:
4.一种根据权利要求3中所述的耐老化耐磨损外墙保温板的制备方法,其特征在于,包括以下步骤:
S1、准备耐磨涂料的原料:按照环氧树脂100份,纳米二氧化钛1~2份,2,4-二羟基二苯甲酮0.05~0.1份,4-苯甲酰氧基-2,2,6,6-四甲基哌啶0.1~0.2份,偶联剂0.5~0.8份,固化剂0.1~0.3份,环氧树脂稀释液10~20,化合物(1)2~4份称取各原料,备用;
S2、耐磨涂料的制备:将步骤S1称取的环氧树脂加入到环氧树脂稀释液中机械搅拌溶解,得环氧树脂胶料,再将步骤S1称取的2,4-二羟基二苯甲酮、4-苯甲酰氧基-2,2,6,6-四甲基哌啶、化合物(1)、偶联剂加入,混合均匀后再分散纳米二氧化钛,待分散均匀再将固化剂加入,继续机械搅拌至均匀,即得耐磨涂料;
S3、改性聚氨酯基板上复合耐磨涂层:将步骤S2制备的耐磨涂料第一次均匀喷涂在改性聚氨酯基板的一侧,第一次喷涂耐磨涂料的厚度为0.2~0.3mm,进行烘干,得到带有耐磨涂层的改性聚氨酯基板,然后在改性聚氨酯基板的耐磨涂层的外表面再喷涂步骤S2制备的耐磨涂料,第二次喷涂耐磨涂料的厚度为0.3~0.4mm,再进行烘干即得耐老化耐磨损外墙保温板。
5.根据权利要求4所述的一种耐老化耐磨损外墙保温板的制备方法,其特征在于,S3中两次喷涂过程均是在增压环境下进行的,所述增压环境的压力为0.5~1MPa。
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Effective date of registration: 20200928 Address after: 266000 No.6 Xiaolai Road, Hetoudian Town, Laixi City, Qingdao City, Shandong Province Applicant after: Laixi Xingmai advanced material technology center Address before: 250000 Shandong Ji'nan high tech Zone, No. ten road 7000, Han Yu financial business center A4- (3) building 10 floor 1004U station. Applicant before: SHANDONG CHENGKUN INFORMATION TECHNOLOGY Co.,Ltd. |
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WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190823 |