CN111823660A - 一种循环包装箱用pp蜂窝板及其制备方法 - Google Patents
一种循环包装箱用pp蜂窝板及其制备方法 Download PDFInfo
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- CN111823660A CN111823660A CN202010706319.1A CN202010706319A CN111823660A CN 111823660 A CN111823660 A CN 111823660A CN 202010706319 A CN202010706319 A CN 202010706319A CN 111823660 A CN111823660 A CN 111823660A
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Abstract
本发明公开了一种循环包装箱用PP蜂窝板及其制备方法,包括两个预浸料表皮层,两个所述预浸料表皮层相邻的一侧均设置有GMT层,两个所述GMT层相邻的一侧均设置有PP蜂窝层;通过将蜂窝芯作为循环包装箱芯材,然后搭配预浸料层,在中温100‑160℃进行快速模压成型,从而避免了在使用胶水或者采用高温热熔精细热塑的情况下,所造成大量资源浪费的情况发生;通过加入GMT层,从而使本PP蜂窝板具有耐热老化、耐湿防潮、防霉无异味等特点,避免了在梅雨季节时易生菌霉变,从而导致低温发脆比较严重的情况发生;通过加入XPS保温层,从而使本PP蜂窝板具有极低的吸水性、高抗压性和抗老化性,确保其保温性能的持久和稳定的同时还拥有优质的憎水和防潮性。
Description
技术领域
本发明涉及包装箱材料制备技术领域,具体为一种循环包装箱用PP蜂窝板及其制备方法。
背景技术
蜂窝芯是由PP等材料根据蜂窝的仿生原理加工而成的新型结构材料,可以和不同的面材如碳纤维板、木纹板、铝板、不锈钢板、大理石板、橡胶板等进行复合,可以大规模替代传统材料,广泛应用于厢式货车、高铁、航空航天、游艇、家居、移动建筑等领域。PP材料即聚丙烯材料,是由丙烯聚合而制得的一种热塑性树脂。PP材料的熔体质量流动速率(MFR)通常在1-100,低MFR的PP材料抗冲击特性较好但延展强度较低,而对于相同MFR的材料,共聚型的抗冲强度比均聚型的要高。
现有的板材与蜂窝芯材主要通过胶水粘合,或采用胶膜、玻璃纤维与高温热熔精细热塑等通过高温进行热熔粘合,这种方式不仅会造成大量资源浪费,而且现有的蜂窝板材料多为纸芯蜂窝板、硬质聚氨酯板、麻纤板或ABS板,在梅雨季节时易生菌霉变,低温发脆比较严重,耐潮性差,且遇水易变形,为此,提出一种循环包装箱用PP蜂窝板及其制备方法。
发明内容
本发明的目的在于提供一种循环包装箱用PP蜂窝板及其制备方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种循环包装箱用PP蜂窝板,包括两个预浸料表皮层,两个所述预浸料表皮层相邻的一侧均设置有GMT层,两个所述GMT层相邻的一侧均设置有PP蜂窝层,两个所述PP蜂窝层相邻的一侧设置有预聚氨酯层,所述聚氨酯层的上表面设置有XPS保温层,两个所述预浸料表皮层相互远离的一侧均设置有三聚氰胺层,所述浸料表皮层远离GMT层的一侧设置有泡沫保温木塑层,所述泡沫保温木塑层远离预浸料表皮层的一侧设置有聚乙烯膜。
作为本技术方案的进一步优选的:两个所述聚乙烯膜相邻的一侧固定连接有PP龙骨。
作为本技术方案的进一步优选的:所述预浸料表皮层优选为:环氧树脂。
作为本技术方案的进一步优选的:所述GMT层的原料按重量份数比为:短切玻璃纤维15-20份、树脂粉末15-20份、玻纤表面处理剂12-16份和乳化剂10-15份。
作为本技术方案的进一步优选的:所述聚氨酯层为聚氨酯材料与彩钢板复合形成的聚氨酯夹芯板,所述三聚氰胺层为三聚氰胺树脂层合板。
作为本技术方案的进一步优选的:所述XPS保温层的原料按重量份数比为:聚苯乙烯20-30份、滑石粉5-10份、三氯氟甲烷1-3份和发泡剂1-2份。
作为本技术方案的进一步优选的:所述泡沫保温木塑层的原料按重量份数比为:聚苯乙烯20-30份、木质纤维10-20份、发泡剂1-2份、粘结剂1-3份和增塑剂2-3份。
另外,本发明还提供了一种循环包装箱用PP蜂窝板的制备方法,包括以下步骤:
S1、制作预浸料表皮层:将环氧树脂加入搅拌机中以搅拌速度80-100r/min进行搅拌,搅拌混合时间为5-15min,然后送入挤出机中以80-120℃进行熔融挤出,经压片机冷却粗破碎后,送入ACM磨粉机粉碎,经旋风分离器筛分得到粉末状环氧树脂组合物;
S2、通过将粉末状环氧树脂组合物均匀的撒到玻璃纤维的上表面,然后将其在80-100℃下进行干燥处理,然后对干燥完成后的材料进行冷却从而形成预浸料卷;
S3、制作GMT层:短切玻璃纤维15-20份、树脂粉末15-20份、玻纤表面处理剂12-16份和乳化剂10-15份一起加人水中,然后通过搅拌机对其高速搅拌,从而形成悬浮液;
S4、将获取的悬浮液倒入针刺机内进行絮化,沉降于带有负压***的运动网帘上,形成胚毡;
S5、经排湿的胚毡随运动网帘进人加热炉,树脂被熔融塑化,最后经定型模具定型处理;
S6、制作XPS保温层:将聚苯乙烯20-30份、滑石粉5-10份和三氯氟甲烷1-3份加入混料机混合后,然后加入到搅拌机中以搅拌速度50-80r/min进行搅拌,搅拌混合时间为5-10min,然后送入挤出机中,加入发泡剂1-2份后以120-150℃进入到模具中定型;
S7、制作泡沫保温木塑层:将聚苯乙烯20-30份、木质纤维10-20份、粘结剂1-3份和增塑剂2-3份加入混料机混合后,然后加入到搅拌机中以搅拌速度50-80r/min进行搅拌,搅拌混合时间为5-10min,然后送入挤出机中,加入发泡剂1-2份后以120-150℃进入到模具中定型;
S8、制作三聚氰胺层:将三聚氰胺甲醛树脂胶液涂覆于木板的外侧壁,以80-90℃进行烘干后,放入压模具中,启动压模机在成型温度为180-230℃,成型时间为4-10min,成型压力为1-3MPa下将其压模成型;
S9、然后将聚乙烯膜、泡沫保温木塑层、三聚氰胺层、预浸料表皮层、GMT层、PP蜂窝层、XPS保温层与聚氨酯层依次叠合后,铺放在模具中,启动压模机在成型温度为100-160℃,成型时间为2-5min,成型压力为1-5MPa下将其压模成型。
作为本技术方案的进一步优选的:在S2中,玻璃纤维为短切玻璃纤维,长度为20-50mm。
与现有技术相比,本发明的有益效果是:
一、通过将蜂窝芯作为循环包装箱芯材,然后搭配预浸料层,在中温100-160℃进行快速模压成型,从而避免了在使用胶水或者采用高温热熔精细热塑的情况下,所造成大量资源浪费的情况发生;
二、通过加入GMT层,从而使本PP蜂窝板具有耐热老化、耐湿防潮、防霉无异味等特点,避免了在梅雨季节时易生菌霉变,从而导致低温发脆比较严重的情况发生;
三、通过加入XPS保温层,从而使本PP蜂窝板具有极低的吸水性、高抗压性和抗老化性,确保其保温性能的持久和稳定的同时还拥有优质的憎水和防潮性。
附图说明
图1为本发明的结构示意图。
图中:1、预浸料表皮层;2、GMT层;3、PP蜂窝层;4、聚氨酯层;5、XPS保温层;6、三聚氰胺层;7、泡沫保温木塑层;8、聚乙烯膜;9、PP龙骨。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例一
请参阅图1,本发明提供一种技术方案:一种循环包装箱用PP蜂窝板,包括两个预浸料表皮层1,两个预浸料表皮层1相邻的一侧均设置有GMT层2,两个GMT层2相邻的一侧均设置有PP蜂窝层3,两个PP蜂窝层3相邻的一侧设置有聚氨酯层4,聚氨酯层4的上表面设置有XPS保温层5,两个预浸料表皮层1相互远离的一侧均设置有三聚氰胺层6,预浸料表皮层远离GMT层2的一侧设置有泡沫保温木塑层7,泡沫保温木塑层7远离预浸料表皮层1的一侧设置有聚乙烯膜8。
本实施例中,具体的:两个聚乙烯膜8相邻的一侧固定连接有PP龙骨7;通过PP龙骨7辅助连接各层,使结构更加紧密,增强其在横向与纵向压力下的强度,使其不易变形。
本实施例中,具体的:预浸料表皮层1优选为:环氧树脂。
本实施例中,具体的:GMT层2的原料按重量份数比为:短切玻璃纤维15份、树脂粉末15份、玻纤表面处理剂12份和乳化剂10份。
本实施例中,具体的:聚氨酯层4为聚氨酯材料与彩钢板复合形成的聚氨酯夹芯板,三聚氰胺层6为三聚氰胺树脂层合板;一般保温层的材料可分为聚氨酯、普通泡沫、石棉等,其中石棉的保温性较差并且具有一定的毒,所以不宜采用;而高密度的聚氨酯保温材料是保温领域中所能采用的最好的保温材料之一,采用无氟聚氨酯,其不仅导热低而且有利于环保,三聚氰胺树脂层合板6为三聚氰胺树脂层合板,该板材具有良好的耐热、耐水性,制品光泽性好,三聚氰胺树脂层合板本身不含有毒性,本身只含有少量且符合国家质量检测标准范围内的甲醛,故而不会释放对人体伤害的物质。
本实施例中,具体的:XPS保温层5的原料按重量份数比为:聚苯乙烯20份、滑石粉5份、三氯氟甲烷1份和发泡剂1份。
本实施例中,具体的:泡沫保温木塑层7的原料按重量份数比为:聚苯乙烯20份、木质纤维10份、发泡剂1份、粘结剂1份和增塑剂2份。
另外,本发明还提供了一种循环包装箱用PP蜂窝板的制备方法,包括以下步骤:
S1、制作预浸料表皮层:将环氧树脂加入搅拌机中以搅拌速度80r/min进行搅拌,搅拌混合时间为15min,然后送入挤出机中以80℃进行熔融挤出,经压片机冷却粗破碎后,送入ACM磨粉机粉碎,经旋风分离器筛分得到粉末状环氧树脂组合物;
S2、通过将粉末状环氧树脂组合物均匀的撒到玻璃纤维的上表面,然后将其在80℃下进行干燥处理,然后对干燥完成后的材料进行冷却从而形成预浸料卷;
S3、制作GMT层:将短切玻璃纤维15份、树脂粉末15份、玻纤表面处理剂12份和乳化剂10份一起加人水中,然后通过搅拌机对其高速搅拌,从而形成悬浮液;
S4、将获取的悬浮液倒入针刺机内进行絮化,沉降于带有负压***的运动网帘上,形成胚毡;
S5、经排湿的胚毡随运动网帘进人加热炉,树脂被熔融塑化,最后经定型模具定型处理;
S6、制作XPS保温层:将聚苯乙烯20份、滑石粉5份和三氯氟甲烷1份加入混料机混合后,然后加入到搅拌机中以搅拌速度50r/min进行搅拌,搅拌混合时间为5min,然后送入挤出机中,加入发泡剂1份后以120℃进入到模具中定型;
S7、制作泡沫保温木塑层:将聚苯乙烯20份、木质纤维10份、粘结剂1份和增塑剂2份加入混料机混合后,然后加入到搅拌机中以搅拌速度50/min进行搅拌,搅拌混合时间为5min,然后送入挤出机中,加入发泡剂1份后以120℃进入到模具中定型;
S8、制作三聚氰胺层:将三聚氰胺甲醛树脂胶液涂覆于木板的外侧壁,以80℃进行烘干后,放入压模具中,启动压模机在成型温度为180℃,成型时间为10min,成型压力为1MPa下将其压模成型;
S9、聚乙烯膜、泡沫保温木塑层、三聚氰胺层、预浸料表皮层、GMT层、PP蜂窝层、XPS保温层与聚氨酯层依次叠合后,铺放在模具中,启动压模机在成型温度为100℃,成型时间为5min,成型压力为5MPa下将其压模成型。
本实施例中,具体的:在S2中,玻璃纤维为短切玻璃纤维,长度为20mm。
实施例二
请参阅图1,本发明提供一种技术方案:一种循环包装箱用PP蜂窝板,包括两个预浸料表皮层1,两个预浸料表皮层1相邻的一侧均设置有GMT层2,两个GMT层2相邻的一侧均设置有PP蜂窝层3,两个PP蜂窝层3相邻的一侧设置有聚氨酯层4,聚氨酯层4的上表面设置有XPS保温层5,两个预浸料表皮层1相互远离的一侧均设置有三聚氰胺层6,预浸料表皮层1远离GMT层2的一侧设置有泡沫保温木塑层7,泡沫保温木塑层7远离预浸料表皮层1的一侧设置有聚乙烯膜8。
本实施例中,具体的:两个聚乙烯膜8相邻的一侧固定连接有PP龙骨7;通过PP龙骨7辅助连接各层,使结构更加紧密,增强其在横向与纵向压力下的强度,使其不易变形。
本实施例中,具体的:预浸料表皮层1优选为:环氧树脂。
本实施例中,具体的:GMT层2的原料按重量份数比为:短切玻璃纤维20份、树脂粉末20份、玻纤表面处理剂16份和乳化剂15份。
本实施例中,具体的:聚氨酯层4为聚氨酯材料与彩钢板复合形成的聚氨酯夹芯板,三聚氰胺层6为三聚氰胺树脂层合板;一般保温层的材料可分为聚氨酯、普通泡沫、石棉等,其中石棉的保温性较差并且具有一定的毒,所以不宜采用;而高密度的聚氨酯保温材料是保温领域中所能采用的最好的保温材料之一,采用无氟聚氨酯,其不仅导热低而且有利于环保,三聚氰胺树脂层合板6为三聚氰胺树脂层合板,该板材具有良好的耐热、耐水性,制品光泽性好,三聚氰胺树脂层合板本身不含有毒性,本身只含有少量且符合国家质量检测标准范围内的甲醛,故而不会释放对人体伤害的物质。
本实施例中,具体的:XPS保温层5的原料按重量份数比为:聚苯乙烯15份、滑石粉8份和三氯氟甲烷2份和发泡剂2份。
本实施例中,具体的:泡沫保温木塑层7的原料按重量份数比为:聚苯乙烯25份、木质纤维15份、发泡剂2份、粘结剂2份和增塑剂2份。
另外,本发明还提供了一种循环包装箱用PP蜂窝板的制备方法,包括以下步骤:
S1、制作预浸料表皮层:将环氧树脂加入搅拌机中以搅拌速度100r/min进行搅拌,搅拌混合时间为5min,然后送入挤出机中以120℃进行熔融挤出,经压片机冷却粗破碎后,送入ACM磨粉机粉碎,经旋风分离器筛分得到粉末状环氧树脂组合物;
S2、通过将粉末状环氧树脂组合物均匀的撒到玻璃纤维的上表面,然后将其在100℃下进行干燥处理,然后对干燥完成后的材料进行冷却从而形成预浸料卷;
S3、制作GMT层:将短切玻璃纤维20份、树脂粉末20份、玻纤表面处理剂16份和乳化剂15份一起加人水中,然后通过搅拌机对其高速搅拌,从而形成悬浮液;
S4、将获取的悬浮液倒入针刺机内进行絮化,沉降于带有负压***的运动网帘上,形成胚毡;
S5、经排湿的胚毡随运动网帘进人加热炉,树脂被熔融塑化,最后经定型模具定型处理;
S6、制作XPS保温层:将聚苯乙烯15份、滑石粉8份和三氯氟甲烷2份加入混料机混合后,然后加入到搅拌机中以搅拌速度60r/min进行搅拌,搅拌混合时间为6min,然后送入挤出机中,加入发泡剂2份后以140℃进入到模具中定型;
S7、制作泡沫保温木塑层:将聚苯乙烯25份、木质纤维15、粘结剂2份和增塑剂2份加入混料机混合后,然后加入到搅拌机中以搅拌速度65r/min进行搅拌,搅拌混合时间为7min,然后送入挤出机中,加入发泡剂2份后以130℃进入到模具中定型;
S8、制作三聚氰胺层:将三聚氰胺甲醛树脂胶液涂覆于木板的外侧壁,以85℃进行烘干后,放入压模具中,启动压模机在成型温度为200℃,成型时间为8min,成型压力为2MPa下将其压模成型;
S9、聚乙烯膜、泡沫保温木塑层、三聚氰胺层、预浸料表皮层、GMT层、PP蜂窝层、XPS保温层与聚氨酯层依次叠合后,铺放在模具中,启动压模机在成型温度为160℃,成型时间为2min,成型压力为2MPa下将其压模成型。
本实施例中,具体的:在S2中,玻璃纤维为短切玻璃纤维,长度为40mm。
实施例三
请参阅图1,本发明提供一种技术方案:一种循环包装箱用PP蜂窝板,包括两个预浸料表皮层1,两个预浸料表皮层1相邻的一侧均设置有GMT层2,两个GMT层2相邻的一侧均设置有PP蜂窝层3,两个PP蜂窝层3相邻的一侧设置有聚氨酯层4,聚氨酯层4的上表面设置有XPS保温层5,两个预浸料表皮层1相互远离的一侧均设置有三聚氰胺层6,预浸料表皮层1远离GMT层2的一侧设置有泡沫保温木塑层7,泡沫保温木塑层7远离预浸料表皮层1的一侧设置有聚乙烯膜8。
本实施例中,具体的:两个聚乙烯膜8相邻的一侧固定连接有PP龙骨7;通过PP龙骨7辅助连接各层,使结构更加紧密,增强其在横向与纵向压力下的强度,使其不易变形。
本实施例中,具体的:预浸料表皮层1优选为:环氧树脂。
本实施例中,具体的:GMT层2的原料按重量份数比为:短切玻璃纤维18份、树脂粉末16份、玻纤表面处理剂14份和乳化剂12份。
本实施例中,具体的:聚氨酯层4为聚氨酯材料与彩钢板复合形成的聚氨酯夹芯板,三聚氰胺层6为三聚氰胺树脂层合板;一般保温层的材料可分为聚氨酯、普通泡沫、石棉等,其中石棉的保温性较差并且具有一定的毒,所以不宜采用;而高密度的聚氨酯保温材料是保温领域中所能采用的最好的保温材料之一,采用无氟聚氨酯,其不仅导热低而且有利于环保,三聚氰胺树脂层合板6为三聚氰胺树脂层合板,该板材具有良好的耐热、耐水性,制品光泽性好,三聚氰胺树脂层合板6本身不含有毒性,本身只含有少量且符合国家质量检测标准范围内的甲醛,故而不会释放对人体伤害的物质。
本实施例中,具体的:XPS保温层5的原料按重量份数比为:聚苯乙烯30份、滑石粉10份、三氯氟甲烷1份和发泡剂1份。
本实施例中,具体的:泡沫保温木塑层7的原料按重量份数比为:聚苯乙烯30份、木质纤维20份、发泡剂2份、粘结剂1份和增塑剂3份和增塑剂2份。
另外,本发明还提供了一种循环包装箱用PP蜂窝板的制备方法,包括以下步骤:
S1、制作预浸料表皮层:将环氧树脂加入搅拌机中以搅拌速度90r/min进行搅拌,搅拌混合时间为10min,然后送入挤出机中以100℃进行熔融挤出,经压片机冷却粗破碎后,送入ACM磨粉机粉碎,经旋风分离器筛分得到粉末状环氧树脂组合物;
S2、通过将粉末状环氧树脂组合物均匀的撒到玻璃纤维的上表面,然后将其在90℃下进行干燥处理,然后对干燥完成后的材料进行冷却从而形成预浸料卷;
S3、制作GMT层:将短切玻璃纤维18份、树脂粉末16份、玻纤表面处理剂14份和乳化剂12份一起加人水中,然后通过搅拌机对其高速搅拌,从而形成悬浮液;
S4、将获取的悬浮液倒入针刺机内进行絮化,沉降于带有负压***的运动网帘上,形成胚毡;
S5、经排湿的胚毡随运动网帘进人加热炉,树脂被熔融塑化,最后经定型模具定型处理;
S6、制作XPS保温层:将聚苯乙烯30份、滑石粉10份和三氯氟甲烷1份加入混料机混合后,然后加入到搅拌机中以搅拌速度50r/min进行搅拌,搅拌混合时间为10min,然后送入挤出机中,加入发泡剂1份后以150℃进入到模具中定型;
S7、制作泡沫保温木塑层:将聚苯乙烯30份、木质纤维20、粘结剂1份和增塑剂3份加入混料机混合后,然后加入到搅拌机中以搅拌速度50r/min进行搅拌,搅拌混合时间为10min,然后送入挤出机中,加入发泡剂2份后以120℃进入到模具中定型;
S8、制作三聚氰胺层:将三聚氰胺甲醛树脂胶液涂覆于木板的外侧壁,以90℃进行烘干后,放入压模具中,启动压模机在成型温度为230℃,成型时间为4min,成型压力为1MPa下将其压模成型;
S9、聚乙烯膜、泡沫保温木塑层、三聚氰胺层、预浸料表皮层、GMT层、PP蜂窝层、XPS保温层与聚氨酯层依次叠合后,铺放在模具中,启动压模机在成型温度为120℃,成型时间为4min,成型压力为5MPa下将其压模成型。
本实施例中,具体的:在S2中,玻璃纤维为短切玻璃纤维,长度为30mm。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (9)
1.一种循环包装箱用PP蜂窝板,包括两个预浸料表皮层(1),其特征在于:两个所述预浸料表皮层(1)相邻的一侧均设置有GMT层(2),两个所述GMT层(2)相邻的一侧均设置有PP蜂窝层(3),两个所述PP蜂窝层(3)相邻的一侧设置有聚氨酯层(4),所述聚氨酯层(4)的上表面设置有XPS保温层(5),两个所述预浸料表皮层(1)相互远离的一侧均设置有三聚氰胺层(6),所述预浸料表皮层(1)远离GMT层(2)的一侧设置有泡沫保温木塑层(7),所述泡沫保温木塑层(7)远离预浸料表皮层(1)的一侧设置有聚乙烯膜(8)。
2.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:两个所述聚乙烯膜(8)相邻的一侧固定连接有PP龙骨(9)。
3.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:所述预浸料表皮层(1)优选为:环氧树脂。
4.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:所述GMT层(2)的原料按重量份数比为:短切玻璃纤维15-20份、树脂粉末15-20份、玻纤表面处理剂12-16份和乳化剂10-15份。
5.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:所述聚氨酯层(4)为聚氨酯材料与彩钢板复合形成的聚氨酯夹芯板,所述三聚氰胺层(6)为三聚氰胺树脂层合板。
6.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:所述XPS保温层(5)的原料按重量份数比为:聚苯乙烯20-30份、滑石粉5-10份、三氯氟甲烷1-3份和发泡剂1-2份。
7.根据权利要求1所述的一种循环包装箱用PP蜂窝板,其特征在于:所述泡沫保温木塑层(7)的原料按重量份数比为:聚苯乙烯20-30份、木质纤维10-20份、发泡剂1-2份、粘结剂1-3份和增塑剂2-3份。
8.一种循环包装箱用PP蜂窝板的制备方法,其特征在于,包括以下步骤:
S1、制作预浸料表皮层:将环氧树脂加入搅拌机中以搅拌速度80-100r/min进行搅拌,搅拌混合时间为5-15min,然后送入挤出机中以80-120℃进行熔融挤出,经压片机冷却粗破碎后,送入ACM磨粉机粉碎,经旋风分离器筛分得到粉末状环氧树脂组合物;
S2、通过将粉末状环氧树脂组合物均匀的撒到玻璃纤维的上表面,然后将其在80-100℃下进行干燥处理,然后对干燥完成后的材料进行冷却从而形成预浸料卷;
S3、制作GMT层:将短切玻璃纤维15-20份、树脂粉末15-20份、玻纤表面处理剂12-16份和乳化剂10-15份一起加人水中,然后通过搅拌机对其高速搅拌,形成悬浮液;
S4、将获取的悬浮液倒入针刺机内进行絮化,沉降于带有负压***的运动网帘上,形成胚毡;
S5、经排湿的胚毡随运动网帘进人加热炉,树脂被熔融塑化,最后经定型模具定型处理;
S6、制作XPS保温层:将聚苯乙烯20-30份、滑石粉5-10份和三氯氟甲烷1-3份加入混料机混合后,然后加入到搅拌机中以搅拌速度50-80r/min进行搅拌,搅拌混合时间为5-10min,然后送入挤出机中,加入发泡剂1-2份后以120-150℃进入到模具中定型;
S7、制作泡沫保温木塑层:将聚苯乙烯20-30份、木质纤维10-20份、粘结剂1-3份和增塑剂2-3份加入混料机混合后,然后加入到搅拌机中以搅拌速度50-80r/min进行搅拌,搅拌混合时间为5-10min,然后送入挤出机中,加入发泡剂1-2份后以120-150℃进入到模具中定型;
S8、制作三聚氰胺层:将三聚氰胺甲醛树脂胶液涂覆于木板的外侧壁,以80-90℃进行烘干后,放入压模具中,启动压模机在成型温度为180-230℃,成型时间为4-10min,成型压力为1-3MPa下将其压模成型;
S9、然后将聚乙烯膜、泡沫保温木塑层、三聚氰胺层、预浸料表皮层、GMT层、PP蜂窝层、XPS保温层与聚氨酯层依次叠合后,铺放在模具中,启动压模机在成型温度为100-160℃,成型时间为2-5min,成型压力为1-5MPa下将其压模成型。
9.根据权利要求8所述的一种循环包装箱用PP蜂窝板的制备方法,其特征在于:在S2中,玻璃纤维为短切玻璃纤维,长度为20-50mm。
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