CN105862445A - 一种环保型tpu发泡合成革的制造方法 - Google Patents
一种环保型tpu发泡合成革的制造方法 Download PDFInfo
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Abstract
本发明公开了一种环保型TPU发泡合成革的制造方法,包括以下步骤:(1)制备发泡剂:将AC发泡剂与载体进行混炼、破碎得到发泡剂颗粒;(2)制备发泡TPU膜:称取1‑8重量份的发泡剂颗粒与热塑性聚氨酯弹性体、5‑20重量份的EVA、0‑10重量份的接枝共聚物,在100‑300℃下熔融混合,挤压制得发泡TPU膜;(3)压制发泡TPU膜;(4)制备TPU表皮膜:称取1‑8重量份的着色剂与热塑性聚氨酯弹性体,在100‑300℃下熔融混合,并压制得到厚度为0.1‑1.5mm的TPU表皮膜;(5)压制TPU表皮膜;(6)表面处理;(7)发泡。通过上述方式,本发明不使用增塑剂、添加剂,发泡过程安全环保,且制得的发泡合成革具有良好的综合性能,且能符合高标准环保要求。
Description
技术领域
本发明涉及合成革制造技术领域,特别是涉及一种环保型TPU发泡合成革的制造方法。
背景技术
目前用PVC发泡的产品使用了大量的增塑剂、添加剂,在生产过程中会产生大量的有害气体,对操作工人身体健康造成极大的伤害,而且PVC发泡的产品中还会存有残留的气味,所以PVC发泡的产品很难达到高标准环保要求。
发明内容
本发明主要解决的技术问题是:针对现有技术的不足,提供一种环保型TPU发泡合成革的制造方法,操作简单易控,不使用增塑剂、添加剂,发泡过程安全环保,且制得的发泡合成革具有良好的综合性能,且能符合高标准环保要求。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种环保型TPU发泡合成革的制造方法,包括以下步骤:
(1)制备发泡剂:
将AC发泡剂与载体进行混炼、破碎得到发泡剂颗粒;
(2)制备发泡TPU膜:
称取1-8重量份的发泡剂颗粒与热塑性聚氨酯弹性体、5-20重量份的EVA、0-10重量份的接枝共聚物,在100-300℃下熔融混合,挤压制得发泡TPU膜;
(3)压制发泡TPU膜:
在上述制得的发泡TPU膜冷却前,将其与基布在0.1-0.8MPa压力下复合压制,冷却后得到初级合成革;
(4)制备TPU表皮膜:
称取1-8重量份的着色剂与热塑性聚氨酯弹性体,在100-300℃下熔融混合,并压制得到厚度为0.1-1.5mm的TPU表皮膜;
(5)压制TPU表皮膜:
在上述制得的TPU表皮膜冷却前,将其与上述制得的初级合成革复合压制,冷却后得到中级合成革;
(6)表面处理:
对上述制得的中级合成革进行表面处理,然后在90-120℃下烘干;
(7)发泡:
将表面处理后的中级合成革在120-260℃烘箱中进行发泡,得到发泡合成革,然后利用吸纹机在所述发泡合成革的表面吸出所需花纹,冷却后得到成品TPU发泡合成革。
在本发明一个较佳实施例中,步骤(1)中,所述载体为EVA、马来酸酐接枝共聚物和纳米钙。
在本发明一个较佳实施例中,步骤(2)中,所述发泡TPU膜的厚度为0.1-2mm。
在本发明一个较佳实施例中,步骤(3)中,所述基布为机织布或超纤布。在本发明一个较佳实施例中,步骤(4)中,所述着色剂为色母粒或色粉。
在本发明一个较佳实施例中,步骤(7)中,所述中级合成革的发泡时间为1-10min。
本发明的有益效果是:本发明采用自行研制的发泡剂颗粒,并优化原料配方制得发泡TPU膜,然后将其与TPU表皮膜复合,再通过发泡处理获得发泡合成革,整个工艺简单、易控,不使用增塑剂、添加剂,发泡过程安全环保,且制得的发泡合成革具有良好的综合性能,且能符合高标准环保要求。
具体实施方式
下面对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
本发明实施例包括:
实施例一:
一种环保型TPU发泡合成革的制造方法,包括以下步骤:
(1)制备发泡剂:
将1重量份的AC发泡剂、0.2重量份的EVA、0.2重量份的马来酸酐接枝共聚物、0.1重量份的纳米钙进行混炼、破碎得到发泡剂颗粒;
(2)制备发泡TPU膜:
称取上述制得的发泡剂颗粒0.5重量份、5重量份的热塑性聚氨酯弹性体、5重量份的EVA、1重量份的接枝共聚物,在100-300℃下熔融混合,挤压制得厚度为0.1-2mm的发泡TPU膜;
(3)压制发泡TPU膜:
在上述制得的发泡TPU膜冷却前,将其与机织布在0.1-0.8MPa压力下复合压制,冷却后得到初级合成革;
(4)制备TPU表皮膜:
称取0.5重量份的色母和5重量份的热塑性聚氨酯弹性体,在100-300℃下熔融混合,并压制得到厚度为0.1-1.5mm的TPU表皮膜;
(5)压制TPU表皮膜:
在上述制得的TPU表皮膜冷却前,将其与上述制得的初级合成革复合压制,冷却后得到中级合成革;
(6)表面处理:
对上述制得的中级合成革进行表面处理,然后在90-120℃下烘干;
(7)发泡:
将表面处理后的中级合成革在120-260℃烘箱中进行发泡1-10min,得到发泡合成革,然后利用吸纹机在所述发泡合成革的表面吸出所需花纹,冷却后得到成品TPU发泡合成革。
实施例二:
一种环保型TPU发泡合成革的制造方法,包括以下步骤:
(1)制备发泡剂:
将1重量份的AC发泡剂颗粒、0.2重量份的EVA、0.1重量份的马来酸酐接枝共聚物、0.2重量份的纳米钙进行混炼、破碎得到发泡剂颗粒;
(2)制备发泡TPU膜:
称取上述制得的发泡剂1重量份、7重量份的热塑性聚氨酯弹性体、8重量份的EVA、5重量份的接枝共聚物,在100-300℃下熔融混合,挤压制得厚度为0.1-2mm的发泡TPU膜;
(3)压制发泡TPU膜:
在上述制得的发泡TPU膜冷却前,将其与超纤布在0.1-0.8MPa压力下复合压制,冷却后得到初级合成革;
(4)制备TPU表皮膜:
称取1重量份的色粉和7重量份的热塑性聚氨酯弹性体,在100-300℃下熔融混合,并压制得到厚度为0.1-1.5mm的TPU表皮膜;
(5)压制TPU表皮膜:
在上述制得的TPU表皮膜冷却前,将其与上述制得的初级合成革复合压制,冷却后得到中级合成革;
(6)表面处理:
对上述制得的中级合成革进行表面处理,然后在90-120℃下烘干;
(7)发泡:
将表面处理后的中级合成革在120-260℃烘箱中进行发泡1-10min,得到发泡合成革,然后利用吸纹机在所述发泡合成革的表面吸出所需花纹,冷却后得到成品TPU发泡合成革。
实施例三:
一种环保型TPU发泡合成革的制造方法,包括以下步骤:
(1)制备发泡剂:
将1.2重量份的AC发泡剂颗粒、0.4重量份的EVA、0.1重量份的马来酸酐接枝共聚物、0.1重量份的纳米钙进行混炼、破碎得到发泡剂颗粒;
(2)制备发泡TPU膜:
称取上述制得的发泡剂1重量份、6重量份的热塑性聚氨酯弹性体、20重量份的EVA、10重量份的接枝共聚物,在100-300℃下熔融混合,挤压制得厚度为0.1-2mm的发泡TPU膜;
(3)压制发泡TPU膜:
在上述制得的发泡TPU膜冷却前,将其与超纤布在0.1-0.8MPa压力下复合压制,冷却后得到初级合成革;
(4)制备TPU表皮膜:
称取1.5重量份的色粉和6重量份的热塑性聚氨酯弹性体,在100-300℃下熔融混合,并压制得到厚度为0.1-1.5mm的TPU表皮膜;
(5)压制TPU表皮膜:
在上述制得的TPU表皮膜冷却前,将其与上述制得的初级合成革复合压制,冷却后得到中级合成革;
(6)表面处理:
对上述制得的中级合成革进行表面处理,然后在90-120℃下烘干;
(7)发泡:
将表面处理后的中级合成革在120-260℃烘箱中进行发泡1-10min,得到发泡合成革,然后利用吸纹机在所述发泡合成革的表面吸出所需花纹,冷却后得到成品TPU发泡合成革。
本发明揭示了一种环保型TPU发泡合成革的制造方法,采用自行研制的发泡剂颗粒,并优化原料配方制得发泡TPU膜,然后将其与TPU表皮膜复合,再通过发泡处理获得发泡合成革,整个工艺简单、易控,不使用增塑剂、添加剂,发泡过程安全环保,且制得的发泡合成革具有良好的综合性能,且能符合高标准环保要求。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (6)
1.一种环保型TPU发泡合成革的制造方法,其特征在于,包括以下步骤:
(1)制备发泡剂:
将AC发泡剂与载体进行混炼、破碎得到发泡剂颗粒;
(2)制备发泡TPU膜:
称取1-8重量份的发泡剂颗粒与热塑性聚氨酯弹性体、5-20重量份的EVA、0-10重量份的接枝共聚物,在100-300℃下熔融混合,挤压制得发泡TPU膜;
(3)压制发泡TPU膜:
在上述制得的发泡TPU膜冷却前,将其与基布在0.1-0.8MPa压力下复合压制,冷却后得到初级合成革;
(4)制备TPU表皮膜:
称取1-8重量份的着色剂与热塑性聚氨酯弹性体,在100-300℃下熔融混合,并压制得到厚度为0.1-1.5mm的TPU表皮膜;
(5)压制TPU表皮膜:
在上述制得的TPU表皮膜冷却前,将其与上述制得的初级合成革复合压制,冷却后得到中级合成革;
(6)表面处理:
对上述制得的中级合成革进行表面处理,然后在90-120℃下烘干;
(7)发泡:
将表面处理后的中级合成革在120-260℃烘箱中进行发泡,得到发泡合成革,然后利用吸纹机在所述发泡合成革的表面吸出所需花纹,冷却后得到成品TPU发泡合成革。
2.根据权利要求1所述的环保型TPU发泡合成革的制造方法,其特征在于,步骤(1)中,所述载体为EVA、马来酸酐接枝共聚物和纳米钙。
3.根据权利要求1所述的环保型TPU发泡合成革的制造方法,其特征在于,步骤(2)中,所述发泡TPU膜的厚度为0.1-2mm。
4.根据权利要求1所述的环保型TPU发泡合成革的制造方法,其特征在于,步骤(3)中,所述基布为机织布或超纤布。
5.根据权利要求1所述的环保型TPU发泡合成革的制造方法,其特征在于,步骤(4)中,所述着色剂为色母粒或色粉。
6.根据权利要求1所述的环保型TPU发泡合成革的制造方法,其特征在于,步骤(7)中,所述中级合成革的发泡时间为1-10min。
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