CN113292841A - 一种与聚氨酯胶水匹配度良好的基础橡胶垫层 - Google Patents

一种与聚氨酯胶水匹配度良好的基础橡胶垫层 Download PDF

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CN113292841A
CN113292841A CN202110528055.XA CN202110528055A CN113292841A CN 113292841 A CN113292841 A CN 113292841A CN 202110528055 A CN202110528055 A CN 202110528055A CN 113292841 A CN113292841 A CN 113292841A
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张志雄
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Guangzhou Wisdom Sports Equipment Technology Co ltd
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Abstract

本发明公开了一种与聚氨酯胶水匹配度良好的基础橡胶垫层，按重量份数计，其配方原料包括以下组分：30‑50份TPU、20‑45份NBR、10‑25份DOTP、3‑5份环氧大豆油、40‑45份轻钙、2‑3份二氧化钛、2‑3份二氧化硅、0.5‑1DCP、0.1‑0.3份TAIC、0.6‑1份加工助剂以及1‑2份AC发泡剂；本发明的与聚氨酯胶水匹配度良好的基础橡胶垫层，能达到GB3246‑2018要求的非渗水型跑道拉伸强度≥0.5mpa，断裂伸长率≥40％，冲击吸收大于35％，垂直变形0.6‑3.0mm的性能要求。

Description

一种与聚氨酯胶水匹配度良好的基础橡胶垫层
技术领域
本发明涉及跑道材料技术领域，尤其是涉及一种与聚氨酯胶水匹配度良好的基础橡胶垫层。
背景技术
目前运动场地跑道球场施工建设中，广泛应用的全塑型PU跑道和硅PU球场在施工中容易出现起泡、不固化，成型后冲击吸收不达标等问题。其使用的胶水为聚氨酯(PU)胶水，此胶水为强极性，与大部分无极性橡塑材料如EPDM，NR,BR,SBR,TPE,TPE等粘接匹配度很差。
发明内容
为了改善上述现有问题，本发明提供了一种与聚氨酯胶水匹配度良好的基础橡胶垫层，是用于跑道、球场的预制基础垫层。
本发明的技术方案为：一种与聚氨酯胶水匹配度良好的基础橡胶垫层，按重量份数计，其配方原料包括以下组分：30-50份TPU、20-45份NBR、10-25份DOTP、3-5份环氧大豆油、40-45份轻钙、2-3份二氧化钛、2-3份二氧化硅、0.5-1DCP、0.1-0.3份TAIC、0.6-1份加工助剂以及1-2份AC发泡剂。
所述TPU(热塑性聚氨酯弹性体橡胶)采用聚醚型TPU，其硬度范围在60-75A，具有耐磨性高、安全性高、良好的挤出稳定性、加工难度较低、耐水解老化等优点。
所述NBR(丁腈橡胶)的丙烯腈的质量含量为30％-35％，具有良好的耐油性、耐寒性、耐水性以及优良的粘结强度；所述DOTP作为NBR的主增塑剂。
所述环氧大豆油作为提高橡胶颗粒整体耐寒性能的辅助增塑剂使用。
所述轻钙选择1250目，作为填充剂使用。
所述二氧化钛及二氧化硅用于提高本橡胶制品的耐候及物理强度，二氧化硅采用纳米二氧化硅，具有更好的分散性、填充特性，对树脂复合材料的冲击强度、拉伸强度、断裂伸长率等性能在一定范围内有较大提高。
所述的DCP为过氧化物交联剂，TAIC为交联助剂，可显著缩短反应时间，让TPU和NBR的分子间形成网状互穿结构，保证材料有更好，更稳定的耐候，耐磨等性能。
所述的加工助剂为氧化锌和硬脂酸，配方中加入活性氧化锌后，能使橡胶具有良好的耐磨性，耐撕裂性和弹性；本发明硬脂酸作为助流剂，有利于生产过程中选择采用挤出成型或压片成型的方法制得成品，生产选择更为灵活，有效降低加工难度。
具体地，一种与聚氨酯胶水匹配度良好的基础橡胶垫层，按重量份数计，其配方原料包括以下组分：30-50份TPU、20-45份NBR、10-25份DOTP、3-5份环氧大豆油、40-45份轻钙、2-3份二氧化钛、2-3份二氧化硅、0.5-1份DCP、0.1-0.3份TAIC、0.3-0.5份氧化锌、0.3-0.5份硬脂酸以及1-2份AC发泡剂。
作为本发明地优选方案，一种与聚氨酯胶水匹配度良好的基础橡胶垫层，按重量份数计，其配方原料包括以下组分：40份TPU、35份NBR、20份DOTP、5份环氧大豆油、40份轻钙、2份二氧化钛、2份二氧化硅、0.5份DCP、0.2份TAIC、0.5份氧化锌、0.4份硬脂酸以及2份AC发泡剂。
本发明的有益效果为：
1、本发明的与聚氨酯胶水匹配度良好的基础橡胶垫层，橡胶垫层配方原料中TPU(热塑性聚氨酯弹性体)和NBR与PU胶水极性和溶解度参数非常匹配，具有非常好的粘接性能，添加二氧化硅，对提高橡胶垫层与PU胶水粘结强度有明显帮助，采用DCP和TAIC，显著缩短反应时间，降低了加工难度，提高生产效率，具有经济实惠性。
2、本发明的跑道用橡胶垫层采用的配方设计，其能达到GB3246-2018要求的非渗水型跑道拉伸强度≥0.5mpa，断裂伸长率≥40％，冲击吸收大于35％，垂直变形0.6-3.0mm的性能要求。
具体实施方式
下面结合具体实施例对本发明作进一步阐述。
一种与聚氨酯胶水匹配度良好的基础橡胶垫层，按重量份数计，其配方原料包括以下组分：
Figure BDA0003066781700000031
以下结合实验数据，以支撑配方的功效原理，实施例1-6通过挤出成型或压片成型得到橡胶制品，通过标准拉力机测试物理强度如下：
实施例 拉伸强度mpa 扯断伸长率％ 硬度(邵氏C)
1 1.7 260 52
2 1.5 280 45
3 1.3 270 38
4 1.6 210 52
5 1.8 240 54
6 1.6 220 50
从数据可看出实施例1-实施例6具有合适的硬度，弹性，可以保证后续施工中得到足够的冲击吸收和垂直变形，其中，实施例1制品物理强度性能最为优异，将实施例1进行双面开T形槽后与PU胶水进行粘接制做跑道样块，与现有全塑型跑道样块进行对比。得出结果如下：
Figure BDA0003066781700000041
以上检测按照GB36246-2018中的标准要求进行，上述结果经对比可得实施例1所制得跑道样块，物理强度、冲击吸收在与全塑型跑道样块PU胶水多个配比的对比中均表现更为优异。
以上所述，仅为本发明的较佳实施例，并不用以限制本发明，凡是依据本发明的技术实质对以上实施例所作的任何细微修改、等同替换和改进，均应包含在本发明技术方案的保护范围内。

Claims (8)

1.一种与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，按重量份数计，其配方原料包括以下组分：30-50份TPU、20-45份NBR、10-25份DOTP、3-5份环氧大豆油、40-45份轻钙、2-3份二氧化钛、2-3份二氧化硅、0.5-1DCP、0.1-0.3份TAIC、0.6-1份加工助剂以及1-2份AC发泡剂。
2.根据权利要求1所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，所述TPU(热塑性聚氨酯弹性体橡胶)采用聚醚型TPU。
3.根据权利要求1所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，所述的聚醚型TPU硬度范围在60-75A。
4.根据权利要求1所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，所述NBR(丁腈橡胶)的丙烯腈的质量含量为30％-35％。
5.根据权利要求1所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，所述轻钙选择1250目。
6.根据权利要求1所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，所述的加工助剂为氧化锌和硬脂酸。
7.根据权利要求6所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，按重量份数计，其配方原料包括以下组分：30-50份TPU、20-45份NBR、10-25份DOTP、3-5份环氧大豆油、40-45份轻钙、2-3份二氧化钛、2-3份二氧化硅、0.5-1份DCP、0.1-0.3份TAIC、0.3-0.5份氧化锌、0.3-0.5份硬脂酸以及1-2份AC发泡剂。
8.根据权利要求7所述的与聚氨酯胶水匹配度良好的基础橡胶垫层，其特征在于，按重量份数计，其配方原料包括以下组分：40份TPU、35份NBR、20份DOTP、5份环氧大豆油、40份轻钙、2份二氧化钛、2份二氧化硅、0.5份DCP、0.2份TAIC、0.5份氧化锌、0.4份硬脂酸以及2份AC发泡剂。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204059144U (zh) * 2014-09-04 2014-12-31 广州腾威科技有限公司 一种纯水性双组份硅pu跑道
CN111777810A (zh) * 2020-07-21 2020-10-16 鞍山市宏图防腐工程有限公司 一种pu树脂型耐磨丁腈橡胶及制备方法
CN111808375A (zh) * 2019-04-11 2020-10-23 天津中和胶业股份有限公司 一种三元乙丙橡胶组合物
CN112745541A (zh) * 2021-01-14 2021-05-04 广州市众智体育科技有限公司 一种具有高粘结强度的跑道用橡胶颗粒

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204059144U (zh) * 2014-09-04 2014-12-31 广州腾威科技有限公司 一种纯水性双组份硅pu跑道
CN111808375A (zh) * 2019-04-11 2020-10-23 天津中和胶业股份有限公司 一种三元乙丙橡胶组合物
CN111777810A (zh) * 2020-07-21 2020-10-16 鞍山市宏图防腐工程有限公司 一种pu树脂型耐磨丁腈橡胶及制备方法
CN112745541A (zh) * 2021-01-14 2021-05-04 广州市众智体育科技有限公司 一种具有高粘结强度的跑道用橡胶颗粒

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