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CN106436339B - 一种pvc人造革发泡层及其制备方法 - Google Patents

一种pvc人造革发泡层及其制备方法 Download PDF

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CN106436339B
CN106436339B CN201610938505.1A CN201610938505A CN106436339B CN 106436339 B CN106436339 B CN 106436339B CN 201610938505 A CN201610938505 A CN 201610938505A CN 106436339 B CN106436339 B CN 106436339B
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刘以东
徐广梅
崔庆
何双跃
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Abstract

本发明公开了一种PVC人造革发泡层，所述的发泡层按重量份包括组分如下：PVC树脂粉95至105份、聚苯醚酮30至40份、纳米氧化铝5至10份、增塑剂30至40份、稳定剂2至3份、发泡剂4至5份。步骤如下：(1)一级加热混料；(2)二级混料；(3)三级混料；(4)密炼开练；(5)压延，冷却后得到PVC人造革发泡层。本发明增强了整个发泡层的尺寸稳定性、强度、韧性，使发泡层的柔软度更加好，同时也不失一定强度。同时由于多孔结构的纳米氧化铝使发泡层的透气性得到全面加强。

Description

一种PVC人造革发泡层及其制备方法
技术领域
本发明涉及PVC发泡人造革及其制备方法。
背景技术
目前，随着服装行业的迅速发展，人们对于皮衣的追求十分狂热，但是真皮的皮衣价格高，保养困难，所以对于人造革和合成革的需求逐渐增长，而由于PU合成革所具有的手感柔软度好和纹路的立体感强的特征，因此大量用于制造皮衣上。在合成革的行业中，很大一部分PU合成革采用湿法揉纹工艺处理，但随着PU合成革会出现水解，产品价格比较贵及不能生产粗纹路产品等技术问题出现，从2005年开始国内PU合成革的生产量每年都有一定幅度的下降。目前，在服装业中已经大量的使用PVC，通过PVC取代了PU可以实现成本的控制。一般在利用PVC制备皮革发泡层时，会加入一些填充物，例如碳酸钙粉等，填充物主要起到降低成本，但是，由于碳酸钙粉对于产品的韧性、强度以及产品尺寸的稳定性、分散性都没有显著的优越性，制备出来的PVC发泡层韧性强度不好把握，尺寸稳定性还不好。
发明内容
针对上述现有技术的不足之处，本发明解决的问题为：提供一种韧性和强度适中，尺寸稳定性强的PVC发泡人造革面层。
为解决上述问题，本发明采取的技术方案如下：
一种PVC人造革发泡层，所述的发泡层按重量份包括组分如下：PVC树脂粉95至105份、聚苯醚酮30至40份、纳米氧化铝5至10份、增塑剂30至40份、稳定剂2至3份、发泡剂4至5份。
进一步，所述的增塑剂为DOP。
进一步，所述的PVC树脂粉100份、聚苯醚酮35份、纳米氧化铝6份。
一种根PVC人造革发泡层的制备方法，步骤如下：（1）一级加热混料：首先将聚苯醚酮和纳米氧化铝按照重量份通过混料釜进行均匀混合待用；保持混料釜的温度为150至170℃；（2）二级混料：将PVC树脂粉、增塑剂、稳定剂、发泡剂按照重量份送入混料釜中进行均匀混合；（3）三级混料：将步骤（1）和步骤（2）中混合物送入混料釜中进行混料；（4）密炼开练：将上述步骤中的混合组分进行密炼、开炼，密炼和开炼的温度为350至450℃；（5）压延：将上述混合组分通过压延机进行压延成型，冷却后得到PVC人造革发泡层。
进一步，所述步骤（1）中的温度控制为160℃，混料时间为30至40min。
进一步，所述的步骤（2）中混料时间为20至30min。
进一步，所述的步骤（3）中送入混料釜中进行混合的时间为20至30min。
进一步，所述的步骤（5）中压延机的温度控制在200至300℃之间。
本发明的有益效果
本发明在发泡层中增加了聚苯醚酮和纳米氧化铝这两种组分，由于纳米氧化铝的纳米效应和多孔结构的特性，将聚苯醚酮和纳米氧化铝在高温环境中进行混料，使聚苯醚酮和纳米氧化铝相互吸附渗透，相互分散的更加均匀，相互协同，均匀了彼此的尺寸稳定性和强度韧性，将聚苯醚酮和纳米氧化铝作为一个整体混合进其他组分的混合料中，进而增强了整个发泡层的尺寸稳定性、强度、韧性，使发泡层的柔软度更加好，同时也不失一定强度。同时由于多孔结构的纳米氧化铝使发泡层的透气性得到全面加强。
具体实施方式
下面对本发明内容作进一步详细说明。
实施例1
一种PVC人造革发泡层，所述的发泡层按重量份包括组分如下：PVC树脂粉98份、聚苯醚酮33份、纳米氧化铝7份、增塑剂32份、稳定剂2.3份、发泡剂4.2份。增塑剂可为DOP。一种根PVC人造革发泡层的制备方法，步骤如下：（1）一级加热混料：首先将聚苯醚酮和纳米氧化铝按照重量份通过混料釜进行均匀混合待用。保持混料釜的温度为152℃，混料时间为32min。（2）二级混料：将PVC树脂粉、增塑剂、稳定剂、发泡剂按照重量份送入混料釜中进行均匀混合，混料时间为22min。（3）三级混料：将步骤（1）和步骤（2）中混合物送入混料釜中进行混料，送入混料釜中进行混合的时间为24min。（4）密炼开练：将上述步骤中的混合组分进行密炼、开炼，密炼和开炼的温度为380℃。（5）压延：将上述混合组分通过压延机进行压延成型，冷却后得到PVC人造革发泡层，压延机的温度控制在220℃之间。
实施例2
一种PVC人造革发泡层，所述的发泡层按重量份包括组分如下：PVC树脂粉100份、聚苯醚酮35份、纳米氧化铝6份、增塑剂35份、稳定剂2.5份、发泡剂4.5份。增塑剂可为DOP。一种根PVC人造革发泡层的制备方法，步骤如下：（1）一级加热混料：首先将聚苯醚酮和纳米氧化铝按照重量份通过混料釜进行均匀混合待用。保持混料釜的温度为160℃，温度控制为160℃，混料时间为35min。（2）二级混料：将PVC树脂粉、增塑剂、稳定剂、发泡剂按照重量份送入混料釜中进行均匀混合，混料时间为25min。（3）三级混料：将步骤（1）和步骤（2）中混合物送入混料釜中进行混料，送入混料釜中进行混合的时间为25min。（4）密炼开练：将上述步骤中的混合组分进行密炼、开炼，密炼和开炼的温度为400℃。（5）压延：将上述混合组分通过压延机进行压延成型，冷却后得到PVC人造革发泡层，压延机的温度控制在250℃之间。
实施例3
一种PVC人造革发泡层，所述的发泡层按重量份包括组分如下：PVC树脂粉103份、聚苯醚酮38份、纳米氧化铝8份、增塑剂38份、稳定剂2.7份、发泡剂4.8份。增塑剂可为DOP。一种根PVC人造革发泡层的制备方法，步骤如下：（1）一级加热混料：首先将聚苯醚酮和纳米氧化铝按照重量份通过混料釜进行均匀混合待用。保持混料釜的温度为168℃，温度控制为160℃，混料时间为38min。（2）二级混料：将PVC树脂粉、增塑剂、稳定剂、发泡剂按照重量份送入混料釜中进行均匀混合，混料时间为28min。（3）三级混料：将步骤（1）和步骤（2）中混合物送入混料釜中进行混料，送入混料釜中进行混合的时间为28min。（4）密炼开练：将上述步骤中的混合组分进行密炼、开炼，密炼和开炼的温度为430℃。（5）压延：将上述混合组分通过压延机进行压延成型，冷却后得到PVC人造革发泡层，压延机的温度控制在280℃之间。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

1.一种PVC人造革发泡层的制备方法，所述的发泡层按重量份包括组分如下：PVC树脂粉95至105份、聚苯醚酮30至40份、纳米氧化铝5至10份、增塑剂30至40份、稳定剂2至3份、发泡剂4至5份；其特征在于，步骤如下：（1）一级加热混料：首先将聚苯醚酮和纳米氧化铝按照重量份通过混料釜进行均匀混合待用；保持混料釜的温度为150至170℃；（2）二级混料：将PVC树脂粉、增塑剂、稳定剂、发泡剂按照重量份送入混料釜中进行均匀混合；（3）三级混料：将步骤（1）和步骤（2）中混合物送入混料釜中进行混料；（4）密炼开练：将上述步骤中的混合组分进行密炼、开炼，密炼和开炼的温度为350至450℃；（5）压延：将上述混合组分通过压延机进行压延成型，冷却后得到PVC人造革发泡层。
2.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述的增塑剂为DOP。
3.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述的PVC树脂粉100份、聚苯醚酮35份、纳米氧化铝6份。
4.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述步骤（1）中的温度控制为160℃，混料时间为30至40min。
5.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述的步骤（2）中混料时间为20至30min。
6.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述的步骤（3）中送入混料釜中进行混合的时间为20至30min。
7.根据权利要求1所述的PVC人造革发泡层的制备方法，其特征在于，所述的步骤（5）中压延机的温度控制在200至300℃之间。
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