CN108530876A - 一种弹性减震透孔垫层、加工方法及施工工艺 - Google Patents
一种弹性减震透孔垫层、加工方法及施工工艺 Download PDFInfo
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Abstract
本发明涉及人造草坪垫层领域，具体涉及一种人造草坪弹性减震透孔垫层、加工方法及施工工艺。本发明的透孔垫层按质量份数计算：热塑性聚氨酯弹性体100份，乙烯‑醋酸乙烯酯共聚物20‑30份，偶氮二甲酰胺20‑40份，助发泡剂15‑30份，过氧化物0.5‑3份；将热塑性聚氨酯弹性体和乙烯‑醋酸乙烯酯共聚物加入到挤出机中，加热熔融后加入偶氮二甲酰胺、助发泡剂和过氧化物，搅匀后注入到预热的热压定型设备后得到发泡垫层；在发泡垫层上下表面分别贴上一层环保透水高分子合成纤维材料膜，修整收卷包装。将场地修整后就可以铺设本发明的透孔垫层。本发明的透孔垫层无味、透水透气、耐冲击，适用于高强度要求的国际专业足球、儿童休闲乐园、跑道等多种场所。
Description
技术领域
本发明涉及人工草坪领域，具体涉及一种人工草坪弹性减震透孔垫层、加工方法及施工工艺。
背景技术
人造草坪已经大量应用在足球场、儿童休闲乐园等场所。弹性减震垫层铺设在人造草坪下面，可以有效起到吸收冲击力，减少由于腿部用力造成对膝盖和脚踝的压力，也缓冲快速运动中摔倒时对身体的冲击，减少人身伤害。好的弹性垫层要求有良好的缓冲效果，长久的回弹性、耐高低温较好、好的排水性能。因此，垫层的性能极大的影响到人造草坪的性能。
中国实用新型专利CN205893861U公开了一种用于人造草坪的弹性减震地垫，由平面弹性体本体和设计在平面弹性体本体上的多组透水结构组成，每组透水结构由一个圆孔和n个以圆孔为中心呈辐射状分散的切口构成，并且采用纵横交布的排水沟增强地垫的排水性能。
发明内容
本发明的目的在于克服现有技术的不足，提供一种弹性减震透孔垫层，从根本上解决人造草坪垫层的排水、减震、回弹性问题。
本发明的另一个目的在于提供这种弹性减震透孔垫层的加工方法。
本发明还有一个目的在于提供这种弹性减震透孔垫层的施工工艺。
为了实现上述目的，本发明采用如下方案：
一种弹性减震透孔垫层，其特征在于：由以下原料质量份数组成：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 20-30份
偶氮二甲酰胺 20-40份
助发泡剂 15-30份
过氧化物 0.5-3份
优选的，所述的热塑性聚氨酯弹性体为聚酯型聚氨酯弹性体或聚醚型聚氨酯弹性体，硬度65A-85D。热塑性聚氨酯弹性体强度高、弹性好、耐低温、耐候性好，是该透孔垫层的主体材料。
优选的，所述的乙烯-醋酸乙烯酯共聚物中醋酸乙烯酯含量为20-50wt%。乙烯-醋酸乙烯酯共聚物柔韧性好、抗冲击性高、弹性好，但较滑，因此在配方中的份数不能高也不能低，高于30份得到的弹性减震透孔垫层会偏软偏滑，低于20份得到的弹性减震透孔垫层柔韧性差，抗冲击不够。
优选的，所述的助发泡剂为硬脂酸、氧化锌、尿素、乙二胺、氧化镁中的一种或几种混合物。助发泡剂可以降低发泡剂--偶氮二甲酰胺的发泡温度。在一定的温度下，助发泡剂和发泡剂的添加量可以决定发泡速度和泡孔的大小。助发泡剂和发泡剂的量越多，发泡速度越快，泡孔也越大，反之亦然。
优选的，所述的过氧化物为过氧化二异丙苯。过氧化二异丙苯是作为两种聚合物材料的交联剂使用，其交联温度与上述的发泡剂的温度相近，使得发泡的同时也能交联固化，达到固化和发泡同步的目的。
一种所述的弹性减震透孔垫层的加工方法，将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至120-130℃，搅拌至熔融后加入偶氮二甲酰胺、助发泡剂和过氧化物，继续搅拌后注入到预热在130℃的片卷供料式热压定型设备后升温至140-150℃，维持10-30分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层环保透水高分子合成纤维材料膜，按设定幅宽对两边进行修整，并按设定的米数收卷，包装。
优选的，所述的发泡垫层的发泡孔为开孔，直径为1-5mm。
优选的，所述的发泡垫层的厚度为0.2-10cm。
优选的，所述的环保透水高分子合成纤维材料膜为无纺布。
一种所述的弹性减震透孔垫层的施工工艺，复核所需施工场地的尺寸；检查场地，打磨或填补基础凹凸之处，使场地平整；清理场地，使场地表面无石子等杂物；划定基准线，沿基准线放好第一卷，垫层与基准线保持平行；沿基准线依次将弹性颗粒减震透孔垫层平铺在场地上；垫层与垫层接缝处用胶黏剂粘结。
本发明的有益效果：
本发明采用热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物作为主体材料，为垫层提供高强度、高弹性、高抗冲击性能；直接将发泡剂和交联剂加入到熔融的材料中同步进行发泡和交联，不但可以使聚合物交联定型，而且能形成发泡孔径较大的开孔，有利于透水透气；在发泡垫层上下表面贴上一层环保透水高分子合成纤维材料膜可以减少由于一些小砂砾或其他杂质对发泡垫层泡孔的堵塞而造成的排水不顺。
具体实施方式：
为使本发明的目的、技术方案和优点更加清楚明白，通过实施例对本发明进行进一步详细阐述，但并不限制本发明。
实施例1
由以下原料按质量份数：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 20份
偶氮二甲酰胺 30份
氧化锌 25份
过氧化二异丙苯 1.5份
将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至130℃，搅拌至熔融后加入偶氮二甲酰胺、氧化锌和过氧化二异丙苯，继续搅拌20分钟后注入到预热在130℃的片卷供料式热压定型设备后升温至140℃，维持20分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层无纺布，按幅宽为1米对两边进行修整，并按20米长度收卷，包装。
实施例2
由以下原料按质量份数：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 30份
偶氮二甲酰胺 40份
氧化锌 30份
过氧化二异丙苯 2份
将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至130℃，搅拌至熔融后加入偶氮二甲酰胺、氧化锌和过氧化二异丙苯，继续搅拌20分钟后注入到预热在130℃的片卷供料式热压定型设备后升温至145℃，维持20分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层无纺布，按幅宽为1.2米对两边进行修整，并按30米长度收卷，包装。
实施例3
由以下原料按质量份数：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 20份
偶氮二甲酰胺 20份
氧化锌 15份
过氧化二异丙苯 2份
将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至130℃，搅拌至熔融后加入偶氮二甲酰胺、氧化锌和过氧化二异丙苯，继续搅拌20分钟后注入到预热在130℃的片卷供料式热压定型设备后升温至145℃，维持20分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层无纺布，按幅宽为1米对两边进行修整，并按30米长度收卷，包装。
实施例4
由以下原料按质量份数：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 30份
偶氮二甲酰胺 30份
尿素 30份
过氧化二异丙苯 2份
将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至130℃，搅拌至熔融后加入偶氮二甲酰胺、尿素和过氧化二异丙苯，继续搅拌20分钟后注入到预热在130℃的片卷供料式热压定型设备后升温至145℃，维持20分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层无纺布，按幅宽为1米对两边进行修整，并按20米长度收卷，包装。
实施例5
由以下原料按质量份数：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 30份
偶氮二甲酰胺 40份
氧化镁 30份
过氧化二异丙苯 1.5份
将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至130℃，搅拌至熔融后加入偶氮二甲酰胺、氧化镁和过氧化二异丙苯，继续搅拌20分钟后注入到预热在130℃的片卷供料式热压定型设备后升温至145℃，维持20分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层无纺布，按幅宽为1.2米对两边进行修整，并按20米长度收卷，包装。
实施例1-5中弹性减震透孔垫层的施工工艺：复核所需施工场地的尺寸；检查场地，打磨或填补基础凹凸之处，使场地平整；清理场地，使场地表面无石子或其他明显杂物；划定基准线，沿基准线放好第一卷，垫层与基准线保持平行；沿基准线依次将弹性颗粒减震透孔垫层平铺在场地上；垫层与垫层接缝处用胶黏剂粘结。
应当说明的是，以上公开实施例仅体现说明本发明的技术方案，而非用来限定本发明的保护范围，尽管参照较佳实施例对本发明做详细地说明，任何熟悉本技术领域者应当理解，在不脱离本发明的技术方案范围内进行修改或各种变化、等同替换，都应当属于本发明的保护范围。
Claims (10)
1.一种弹性减震透孔垫层，其特征在于：由以下原料质量份数组成：
热塑性聚氨酯弹性体 100份
乙烯-醋酸乙烯酯共聚物 20-30份
偶氮二甲酰胺 20-40份
助发泡剂 15-30份
过氧化物 0.5-3份。
2.根据权利要求1所述的弹性减震透孔垫层，其特征在于：所述的热塑性聚氨酯弹性体为聚酯型聚氨酯弹性体或聚醚型聚氨酯弹性体，硬度65A-85D。
3.根据权利要求1所述的弹性减震透孔垫层，其特征在于：所述的乙烯-醋酸乙烯酯共聚物中醋酸乙烯酯含量为20-50wt%。
4.根据权利要求1所述的弹性减震透孔垫层，其特征在于：所述的助发泡剂为硬脂酸、氧化锌、尿素、乙二胺、氧化镁中的一种或几种混合物。
5.根据权利要求1所述的弹性减震透孔垫层，其特征在于：所述的过氧化物为过氧化二异丙苯。
6.一种权利要求1-5中任一项所述的弹性减震透孔垫层的加工方法，其特征在于：将热塑性聚氨酯弹性体和乙烯-醋酸乙烯酯共聚物加入到挤出机中，升温至120-130℃，搅拌至熔融后加入偶氮二甲酰胺、助发泡剂和过氧化物，继续搅拌后注入到预热在130℃的片卷供料式热压定型设备后升温至140-150℃，维持10-30分钟，降温得到发泡垫层；采用热熔胶在发泡垫层上下表面分别贴上一层环保透水高分子合成纤维材料膜，按设定幅宽对两边进行修整，并按设定的米数收卷，包装。
7.根据权利要求6所述的弹性减震透孔垫层的加工方法，其特征在于：所述的发泡垫层的发泡孔为开孔，直径为1-5mm。
8.根据权利要求6所述的弹性减震透孔垫层的加工方法，其特征在于：所述的发泡垫层的厚度为0.2-10cm。
9.根据权利要求6所述的弹性减震透孔垫层的加工方法，其特征在于：所述的环保透水高分子合成纤维材料膜为无纺布。
10.一种权利要求1-5中任一项所述的弹性减震透孔垫层的施工工艺，其特征在于：复核所需施工场地的尺寸；检查场地，打磨或填补基础凹凸之处，使场地平整；清理场地，使场地表面无石子等杂物；划定基准线，沿基准线放好第一卷，垫层与基准线保持平行；沿基准线依次将弹性颗粒减震透孔垫层平铺在场地上；垫层与垫层接缝处用胶黏剂连接。
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