CN110564038A - 一种低烟发泡海绵的制备方法 - Google Patents

一种低烟发泡海绵的制备方法 Download PDF

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CN110564038A
CN110564038A CN201910820238.1A CN201910820238A CN110564038A CN 110564038 A CN110564038 A CN 110564038A CN 201910820238 A CN201910820238 A CN 201910820238A CN 110564038 A CN110564038 A CN 110564038A
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秦伯军
张君
秦天德
刘远斌
翟必赢
曹鑫
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Yaros Building Materials (jiangsu) Co Ltd
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Abstract

本发明涉及发泡海绵技术领域,且公开了一种低烟发泡海绵的制备方法,包括以下重量份数配比的原料:聚乙烯树脂70~100份、乙华平橡胶30‑50份、天然胶乳20‑30份、硫化剂2~5份、促进剂0.5~2.5份、防老剂0.5~1.5份、迟缓胶凝剂0.5~3份、泡沫稳定剂1~5份、活性剂7~9份、分散剂2~3份、发泡剂3~5份、抗氧剂2~3份、防护蜡2~3份。本发明通过乙华平橡胶原料的添加,乙华平橡胶具有非常优异的阻燃性,可以在产品配方中可以充当阻燃剂的作用,使其不采用卤素阻燃剂也能达到高的阻燃要求,从而发泡海绵容易产生大量的烟雾,达到了防止污染环境的目的,可以使得制备的发泡海绵具有橡胶特性,弹力好,回弹性好、且不易形变。

Description

一种低烟发泡海绵的制备方法
技术领域
本发明涉及发泡海绵技术领域,具体为一种低烟发泡海绵的制备方法。
背景技术
发泡海绵像发泡面包一样,可用机械设备发泡,也可人工用木板围住发泡,经发泡的棉好像一块方型大面包一样,使用切片机经过切片工序,发泡棉按不同要求切削厚度,发泡棉也可调整软硬度。座棉一般采用25-8kg/立方米,其它采用20-22kg/立方米密度,海棉的软硬度与密度虽然有直接关系,但与不同添加剂配方也有关系,因此行业内分高弹力、灰超、黑灰超、软棉。产品设计使用时应视不同造型、结构进行合理科学搭配,一般分上、中、低三个部位搭配不同弹性、密度的海棉。
对于发泡海绵要达到阻燃目的,在不同程度上需在胶料配方中添加卤素阻燃剂(如十溴苯醚,磷酸酯类等),这些含卤素阻燃剂虽然有高效阻燃效果,但同时释放出许多有害物质,易产生大量的烟雾,使逃离者窒息迷失方向,同时给环境带来一定的污染。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种低烟发泡海绵的制备方法,具备低烟阻燃等优点,解决了添加卤素阻燃剂的发泡海绵容易产生大量的烟雾,使逃离者窒息迷失方向,同时给环境带来一定的污染的问题。
(二)技术方案
为实现上述低烟阻燃目的,本发明提供如下技术方案:一种低烟发泡海绵的制备方法,包括以下重量份数配比的原料:聚乙烯树脂70~100份、乙华平橡胶30-50份、天然胶乳20-30份、硫化剂2~5份、促进剂0.5~2.5份、防老剂0.5~1.5份、迟缓胶凝剂0.5~3份、泡沫稳定剂1~5份、活性剂7~9份、分散剂2~3份、发泡剂3~5份、抗氧剂2~3份、防护蜡2~3份、软化剂0.2~1份、补强剂0.5~2份、抗水解剂0.3~2.5份。
优选的,所述活性剂为硬脂酸和氧化锌,所述硬脂酸和氧化锌的质量比为2:1。
优选的,所述促进剂为为二乙基二硫代氨基甲酸锌ZDC,所述泡沫稳定剂为明胶或酪素。
优选的,所述防老剂为BHT264对甲酚BHT26,所述发泡剂为油酸钾或油酸铵。
优选的,所述迟缓胶凝剂为硅氟酸钠或氟硅化钠,所述起泡剂为油酸钾,所述抗水解剂为聚碳二亚胺。
本发明要解决的另一技术问题是提供一种低烟发泡海绵的制备方法,包括以下步骤:
1)先将聚乙烯树脂投入至塑料密炼机中,待密炼温度升至150℃时,加入乙华平橡胶,密炼2-5分钟后排出,即为发泡海绵母体;
2)将天然胶乳、硫化剂、促进剂及防老剂混合均匀,室温静置15分钟,得到混合天然胶乳,在混合天然胶乳中加入泡沫稳定剂和发泡剂,搅拌起泡,再加入迟缓胶凝剂和活性剂,得到发泡胶乳;
3)将开练机预热6分钟,然后将步骤一中制备的发泡母料和步骤二中制备的发泡胶乳分别与分散剂、抗氧剂、防护蜡、软化剂、补强剂和抗水解剂投入至开炼机中,然后混合10-20分钟,混合温度控制在80—100℃;
4)将经步骤三制备的发泡材料混合物送入挤出机,在挤出机温度为80-100℃的工艺条件下挤出成型的片材;
5)将片材先用1350T油压机,蒸汽压力为2.8~3.2公斤,时间28~32分钟进行一段硫化,后用150T的油压机蒸汽压力为6.5~7公斤,时间15~20分钟进行二段硫化发泡成型,即可得低烟发泡海绵。
(三)有益效果
与现有技术相比,本发明提供了一种低烟发泡海绵的制备方法,具备以下有益效果:
1、该低烟发泡海绵的制备方法,通过乙华平橡胶原料的添加,乙华平橡胶具有非常优异的阻燃性, 可以在产品配方中可以充当阻燃剂的作用,使其不采用卤素阻燃剂也能达到高的阻燃要求,从而发泡海绵容易产生大量的烟雾,达到了防止污染环境的目的。
2、该低烟发泡海绵的制备方法,通过天然胶乳的添加,可以使得制备的发泡海绵具有橡胶特性,弹力好,回弹性好、且不易形变。
3、该低烟发泡海绵的制备方法,通过抗水解剂的添加,抗水解剂可以抑制发泡海绵降解,可以使得发泡海绵性能稳定,延长发泡海绵的使用寿命。
4、该低烟发泡海绵的制备方法,通过活性剂的添加,聚乙烯树脂和乙华平橡胶的粘度较低,在混炼时配比时添加活性剂,可以增加粘度,使其更好的成型。
具体实施方式
下面将结合本发明的实施例,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。
本发明提供了具体的实施方案如下:
一种低烟发泡海绵的制备方法,包括以下重量份数配比的原料:聚乙烯树脂70~100份、乙华平橡胶30-50份、天然胶乳20-30份、硫化剂2~5份、促进剂0.5~2.5份、防老剂0.5~1.5份、迟缓胶凝剂0.5~3份、泡沫稳定剂1~5份、活性剂7~9份、分散剂2~3份、发泡剂3~5份、抗氧剂2~3份、防护蜡2~3份、软化剂0.2~1份、补强剂0.5~2份、抗水解剂0.3~2.5份,活性剂为硬脂酸和氧化锌,硬脂酸和氧化锌的质量比为2:1,促进剂为为二乙基二硫代氨基甲酸锌ZDC,泡沫稳定剂为明胶或酪素,防老剂为BHT264对甲酚BHT26,发泡剂为油酸钾或油酸铵,迟缓胶凝剂为硅氟酸钠或氟硅化钠,起泡剂为油酸钾,抗水解剂为聚碳二亚胺。
实施例1:
一种低烟发泡海绵的制备方法,包括以下步骤:
1)先将聚乙烯树脂投入至塑料密炼机中,待密炼温度升至150℃时,加入乙华平橡胶,密炼2-5分钟后排出,即为发泡海绵母体;
2)将天然胶乳、硫化剂、促进剂及防老剂混合均匀,室温静置15分钟,得到混合天然胶乳,在混合天然胶乳中加入泡沫稳定剂和发泡剂,搅拌起泡,再加入迟缓胶凝剂和活性剂,得到发泡胶乳;
3)将开练机预热6分钟,然后将步骤一中制备的发泡母料和步骤二中制备的发泡胶乳分别与分散剂、抗氧剂、防护蜡、软化剂、补强剂和抗水解剂投入至开炼机中,然后混合10-20分钟,混合温度控制在80—100℃;
4)将经步骤三制备的发泡材料混合物送入挤出机,在挤出机温度为80-100℃的工艺条件下挤出成型的片材。
实施例2:
一种低烟发泡海绵的制备方法,包括以下步骤:
1)先将聚乙烯树脂投入至塑料密炼机中,待密炼温度升至150℃时,加入乙华平橡胶,密炼2-5分钟后排出,即为发泡海绵母体;
2)将天然胶乳、硫化剂、促进剂及防老剂混合均匀,室温静置15分钟,得到混合天然胶乳,在混合天然胶乳中加入泡沫稳定剂和发泡剂,搅拌起泡,再加入迟缓胶凝剂和活性剂,得到发泡胶乳;
3)将开练机预热6分钟,然后将步骤一中制备的发泡母料和步骤二中制备的发泡胶乳分别与分散剂、抗氧剂、防护蜡、软化剂、补强剂和抗水解剂投入至开炼机中,然后混合10-20分钟,混合温度控制在80—100℃;
4)将经步骤三制备的发泡材料混合物送入挤出机,在挤出机温度为80-100℃的工艺条件下挤出成型的片材;
5)将片材先用1350T油压机,蒸汽压力为2.8~3.2公斤,时间28~32分钟进行一段硫化。
实施例3:
一种低烟发泡海绵的制备方法,包括以下步骤:
1)先将聚乙烯树脂投入至塑料密炼机中,待密炼温度升至150℃时,加入乙华平橡胶,密炼2-5分钟后排出,即为发泡海绵母体;
2)将天然胶乳、硫化剂、促进剂及防老剂混合均匀,室温静置15分钟,得到混合天然胶乳,在混合天然胶乳中加入泡沫稳定剂和发泡剂,搅拌起泡,再加入迟缓胶凝剂和活性剂,得到发泡胶乳;
3)将开练机预热6分钟,然后将步骤一中制备的发泡母料和步骤二中制备的发泡胶乳分别与分散剂、抗氧剂、防护蜡、软化剂、补强剂和抗水解剂投入至开炼机中,然后混合10-20分钟,混合温度控制在80—100℃;
4)将经步骤三制备的发泡材料混合物送入挤出机,在挤出机温度为80-100℃的工艺条件下挤出成型的片材;
5)将片材先用1350T油压机,蒸汽压力为2.8~3.2公斤,时间28~32分钟进行一段硫化,后用150T的油压机蒸汽压力为6.5~7公斤,时间15~20分钟进行二段硫化发泡成型,即可得低烟发泡海绵。
经过制备发现产品经过二段硫化后发泡充分,制品泡孔均匀、形状规则,尺寸热收缩率较小。
通过乙华平橡胶原料的添加,乙华平橡胶具有非常优异的阻燃性, 可以在产品配方中可以充当阻燃剂的作用,使其不采用卤素阻燃剂也能达到高的阻燃要求,从而发泡海绵容易产生大量的烟雾,达到了防止污染环境的目的。
通过天然胶乳的添加,可以使得制备的发泡海绵具有橡胶特性,弹力好,回弹性好、且不易形变。
通过抗水解剂的添加,抗水解剂可以抑制发泡海绵降解,可以使得发泡海绵性能稳定,延长发泡海绵的使用寿命。
通过活性剂的添加,聚乙烯树脂和乙华平橡胶的粘度较低,在混炼时配比时添加活性剂,可以增加粘度,使其更好的成型。
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 (6)

1.一种低烟发泡海绵的制备方法,其特征在于,包括以下重量份数配比的原料:聚乙烯树脂70~100份、乙华平橡胶30-50份、天然胶乳20-30份、硫化剂2~5份、促进剂0.5~2.5份、防老剂0.5~1.5份、迟缓胶凝剂0.5~3份、泡沫稳定剂1~5份、活性剂7~9份、分散剂2~3份、发泡剂3~5份、抗氧剂2~3份、防护蜡2~3份、软化剂0.2~1份、补强剂0.5~2份、抗水解剂0.3~2.5份。
2.根据权利要求1所述的一种低烟发泡海绵的制备方法,其特征在于,所述活性剂为硬脂酸和氧化锌,所述硬脂酸和氧化锌的质量比为2:1。
3.根据权利要求1所述的一种低烟发泡海绵的制备方法,其特征在于,所述促进剂为为二乙基二硫代氨基甲酸锌ZDC,所述泡沫稳定剂为明胶或酪素。
4.根据权利要求1所述的一种低烟发泡海绵的制备方法,其特征在于,所述防老剂为BHT264对甲酚BHT26,所述发泡剂为油酸钾或油酸铵。
5.根据权利要求1所述的一种低烟发泡海绵的制备方法,其特征在于,所述迟缓胶凝剂为硅氟酸钠或氟硅化钠,所述起泡剂为油酸钾,所述抗水解剂为聚碳二亚胺。
6.一种低烟发泡海绵的制备方法,其特征在于,包括以下步骤:
1)先将聚乙烯树脂投入至塑料密炼机中,待密炼温度升至150℃时,加入乙华平橡胶,密炼2-5分钟后排出,即为发泡海绵母体;
2)将天然胶乳、硫化剂、促进剂及防老剂混合均匀,室温静置15分钟,得到混合天然胶乳,在混合天然胶乳中加入泡沫稳定剂和发泡剂,搅拌起泡,再加入迟缓胶凝剂和活性剂,得到发泡胶乳;
3)将开练机预热6分钟,然后将步骤一中制备的发泡母料和步骤二中制备的发泡胶乳分别与分散剂、抗氧剂、防护蜡、软化剂、补强剂和抗水解剂投入至开炼机中,然后混合10-20分钟,混合温度控制在80—100℃;
4)将经步骤三制备的发泡材料混合物送入挤出机,在挤出机温度为80-100℃的工艺条件下挤出成型的片材;
5)将片材先用1350T油压机,蒸汽压力为2.8~3.2公斤,时间28~32分钟进行一段硫化,后用150T的油压机蒸汽压力为6.5~7公斤,时间15~20分钟进行二段硫化发泡成型,即可得低烟发泡海绵。
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CN111086152A (zh) * 2019-12-26 2020-05-01 李刚 一种橡胶海绵异型片材成型工艺及工装

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