CN114989768A - 耐酸性抗菌草坪胶及其制备方法和施工方法 - Google Patents
耐酸性抗菌草坪胶及其制备方法和施工方法 Download PDFInfo
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Abstract
本发明属于聚氨酯胶黏剂技术领域，具体涉及一种耐酸性抗菌草坪胶及其制备方法和施工方法。所述的耐酸性抗菌草坪胶，为A、B双组分胶黏剂，其中A组分包括以下质量百分数的原料：芳香族聚酯多元醇20‑30％，小分子醇1‑3％，增塑剂10‑20％，填料50‑60％，颜料0.2‑0.5％，抗氧剂0.1‑0.4％，抗菌剂0.6％‑1％，防沉剂0.1‑0.5％，催化剂0.1‑0.5％；B组分为聚醚多元醇和多异氰酸酯的预聚体。本发明的耐酸性抗菌草坪胶，具有优异的耐酸性和抗菌性，能够最大程度地抑制细菌生产繁殖；本发明还提供其制备方法和施工方法。
Description
技术领域
本发明属于聚氨酯胶黏剂技术领域，具体涉及一种耐酸性抗菌草坪胶及其制备方法和施工方法。
背景技术
随着人们生活水平的提高，全民健身活动如火如荼，人造草坪因其自身全天候性、常绿性、环保性、耐用性、经济性等优点被广泛应用于足球场、高尔夫球场等娱乐健身场地。
然而目前市场上粘接草坪的胶黏剂，主要是以氯丁橡胶为主要成分的溶剂型胶黏剂，虽然初始有良好的粘接强度、易施工、耐水性好等优点，但随着雨水长期浸泡，草坪底部滋生细菌等病害，长时间会导致人造草与底部粘接不牢，同时随着工业SO2的排放，雨水酸性增强，传统草坪胶又不耐酸性，导致草坪胶粘接强度骤减。本专利通过配方设计，解决了草坪胶不耐酸性、不抗菌这一弊端。
发明内容
本发明要解决的技术问题是：提供一种耐酸性抗菌草坪胶，具有优异的耐酸性和抗菌性，能够最大程度地抑制细菌生产繁殖；本发明还提供其制备方法和施工方法。
本发明所述的耐酸性抗菌草坪胶，为A、B双组分胶黏剂，其中A组分包括以下质量百分数的原料：
B组分为聚醚多元醇和多异氰酸酯反应得到的NCO含量为24.7-25.3wt％的预聚体；
A、B组分比例按照异氰酸根指数(R)计算，异氰酸根指数(R)控制在1.1-1.2之间。
本发明A组分中：
所述芳香族聚酯多元醇官能度为2，分子量为1000-3000；优选为芳香族聚酯多元醇PE-D505，山东一诺威聚氨酯股份有限公司生产。
所述小分子醇为乙二醇、二乙二醇、丙三醇中的一种或多种；优选为乙二醇。
所述填料优选为600目滑石粉。
所述颜料为氧化铁绿、彩绿、复合铁绿中的一种或多种；优选为氧化铁绿。
所述增塑剂为氯代棕榈油甲酯。
所述防沉剂优选为气相二氧化硅。
所述抗氧剂为抗氧剂6260、抗氧剂1010、抗氧剂3134中的一种或多种；优选为抗氧剂6260。
所述抗菌剂优选未PP母粒-AgP25，南京天诗蓝盾生物科技有限公司生产。
所述催化剂为二月桂酸二丁基锡、新葵酸锌、新葵酸铋中的一种或多种；优选为新葵酸锌、新葵酸铋复配催化剂DP-C05。
本发明B组分中：
聚醚多元醇官能度为2-3，分子量为2000-3000；优选为聚醚多元醇DG5412，山东一诺威聚氨酯股份有限公司生产。
多异氰酸酯为甲苯二异氰酸酯、二苯基甲烷二异氰酸酯、六亚甲基二异氰酸酯中的一种或多种；优选为PM-200，山东万华化学集团股份有限公司生产。
本发明所述的耐酸性抗菌草坪胶的制备方法，包括以下步骤：
(1)A组分：按配比将芳香族聚酯多元醇、小分子醇、抗氧剂投入反应釜中，加热溶解；再投入增塑剂、颜料、填料、防沉剂，高速搅拌分散均匀，真空脱水至水分0.08wt％以下,然后降温至50-60℃，投入催化剂，抗菌剂，搅拌均匀，制得A组分；
(2)B组分：将聚醚多元醇脱水后，理论NCO含量为25wt％加入对应量的多异氰酸酯，在75-80℃条件下反应1-3h，至NCO含量为24.7-25.3wt％，冷却至室温，制得B组分。
步骤(1)中，高速搅拌转速为1200～1500rpm，时间为10-30分钟。
步骤(1)中，真空脱水温度为90-100℃，时间为10-15min。
本发明所述的耐酸性抗菌草坪胶的施工方法，为：将A组分和B组分按照比例搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，1-3h后压实即得草坪。
与现有技术相比，本发明的有益效果如下：
(1)本发明通过选用合适的芳香族聚酯多元醇作为软段，硬段采用对称的芳香族异氰酸酯，增加链段的刚性和结晶，同时适量采用小分子醇类扩链剂，提高交联密度，从而使材料具有了优异的耐酸性；
(2)本发明利用银系抗菌剂具有广谱持久的抗菌性特点，将纳米银作为抗菌材料引入聚氨酯材料中，同时搭配一定量的增塑剂使银系抗菌剂发挥到了最佳效果，从而最大程度地抑制细菌生产繁殖。
具体实施方式
下面结合实施例对本发明做出进一步说明，但本发明的保护范围不仅限于此，该领域专业人员对本发明技术方案所作的改变，均应属于本发明的保护范围内。
实施例中所使用的原料，如无特别说明，均为市售常规原料；实施例中所使用的工艺方法，如无特别说明，均为本领域常规方法。
实施例中用到的部分原料如下：
芳香族聚酯多元醇PE-D505，山东一诺威聚氨酯股份有限公司；
乙二醇，无锡浩淼化工科技有限公司；
600目滑石粉，河北辉浩环保科技有限公司；
氧化铁绿，山东鑫隆辉化工进出口有限公司；
氯代棕榈油甲酯，山东科兴化工有限公司；
气相二氧化硅，山东麒麟化工有限公司；
抗氧剂6260，青岛杰得佳新材料科技有限公司；
PP母粒-AgP25，南京天诗蓝盾生物科技有限公司；
聚醚多元醇DG5412，山东一诺威聚氨酯股份有限公司；
聚醚多元醇DG5413，山东一诺威聚氨酯股份有限公司；
PM-200，山东万华化学集团股份有限公司。
实施例1
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 20g、乙二醇3g、600目滑石粉60g、氯代棕榈油甲酯15g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08wt％以下，降温至65℃，投入0.5gDP-C05，0.6g PP母粒-AgP25，分散30min即得A组分产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，75℃条件下反应2h，测得NCO含量为24.7wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.1的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，1h后压实即得草坪。
实施例2
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 30g、乙二醇2g、600目滑石粉51g、氯代棕榈油甲酯15g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08％以下，降温至65℃，投入0.5gDP-C05，0.6gPP母粒-AgP25，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.3wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.2的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，3h后压实即得草坪。
实施例3
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 25g、乙二醇2g、600目滑石粉56g、氯代棕榈油甲酯15g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08％以下，降温至65℃，投入0.5g催化剂DP-C05，0.6g PP母粒-AgP25，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.0wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.14的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，2h后压实即得草坪。
对比例1
(1)制备A组分料：先将聚酯多元醇BMY(酸值≤2mgKOH/g，东营康慧)25g、乙二醇2g、600目滑石粉56g、氯代棕榈油甲酯15g、抗氧剂6260 0.3g、防沉剂0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08％以下，降温至65℃，投入0.5g催化剂，0.6g PP母粒-AgP25，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.0wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.14的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，2h后压实即得草坪。
对比例2
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 20g、乙二醇3g、600目滑石粉60g、氯代棕榈油甲酯15g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08wt％以下，降温至65℃，投入0.5gDP-C05，0.6g PP母粒-AgP25，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5413加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.0wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.14的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，2h后压实即得草坪。
对比例3
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 20g、乙二醇3g、600目滑石粉60g、乙二酸酯15g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08wt％以下，降温至65℃，投入0.5g催化剂DP-C05，0.6g PP母粒-AgP25，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.0wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.14的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，2h后压实即得草坪。
对比例4
(1)制备A组分料：先将芳香族聚酯多元醇PE-D505 25g、乙二醇2g、600目滑石粉56g、氯代棕榈油甲酯15.6g、抗氧剂6260 0.3g、气相二氧化硅0.2g、氧化铁绿0.4g投入釜中搅拌均匀，90-100℃，真空脱水10-15min，脱至水分0.08％以下，降温至65℃，投入0.5g催化剂DP-C05，分散30min即得A组份产品；
(2)制备B组分料：将聚醚多元醇DG5412加热至100℃，脱水至含水量0.05wt％以下，按理论NCO含量为25wt％加入对应量的PM-200，80℃条件下反应2h，测得NCO含量为25.0wt％，即得B组分产品；
(3)施工应用：将A组分和B组分按照指数R＝1.14的比例混合，搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，2h后压实即得草坪。
将各实施例和对比例的产品性能进行测试，测试方法如下：
(1)抑菌率：将各实施例和对比例的A组分和B组分按照比例搅拌分散均匀后，摊铺，得到所述草坪胶样片，将样片切割成5cm圆片，置于大肠杆菌培养皿中，36℃培养24h后测试样片抑菌率。
(2)拉伸强度和撕裂强度：参照标准GB36246-2018进行测试。
(3)耐酸性测试：参照《路面防滑涂料JT/T 712—2008》中耐碱性测试，将碱性溶液换成PH＝5的酸性溶液，将样品浸泡溶液24h，观察有无异常。
测试结果如表1所示。
表1实施例和对比例各项性能测试结果
| 项目 | 撕裂强度KN/m | 拉伸强度MPa | 抗菌性能％ | 耐酸测试 |
| 实施例1 | 56 | 13 | 99 | 无异常 |
| 实施例2 | 60 | 15 | 99 | 无异常 |
| 实施例3 | 95 | 22 | 99 | 无异常 |
| 对比例1 | 30 | 3 | 98 | 部分草坪脱落 |
| 对比例2 | 36 | 7 | 99 | 部分草坪脱落 |
| 对比例3 | 33 | 4 | 98 | 部分草坪脱落 |
| 对比例4 | 75 | 16 | 10 | 无异常 |
从上表数据可以看出，本发明的抗菌耐酸性抗菌草坪胶，能抵抗一定酸性溶液的腐蚀，样片性能不降低，且添加一定量的抗菌剂，能明显抑制细菌生长，长时间地维持材料的粘接性能，因而具有极佳的推广价值。
Claims (10)
1.一种耐酸性抗菌草坪胶，其特征在于：为A、B双组分胶黏剂，其中A组分包括以下质量百分数的原料：
B组分为聚醚多元醇和多异氰酸酯反应得到的NCO含量为24.7-25.3wt％的预聚体；
A、B组分比例按照异氰酸根指数R计算，R控制在1.1-1.2之间。
2.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：芳香族聚酯多元醇官能度为2，分子量为1000-3000。
3.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：小分子醇为乙二醇、二乙二醇、丙三醇中的一种或多种。
4.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：填料为600目滑石粉；颜料为氧化铁绿、彩绿、复合铁绿中的一种或多种；防沉剂为气相二氧化硅；抗氧剂为抗氧剂6260、抗氧剂1010、抗氧剂3134中的一种或多种；催化剂为二月桂酸二丁基锡、新葵酸锌、新葵酸铋中的一种或多种。
5.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：增塑剂为氯代棕榈油甲酯。
6.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：抗菌剂为PP母粒-AgP25。
7.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：聚醚多元醇官能度为2-3，分子量为2000-3000。
8.根据权利要求1所述的耐酸性抗菌草坪胶，其特征在于：多异氰酸酯为甲苯二异氰酸酯、二苯基甲烷二异氰酸酯、六亚甲基二异氰酸酯中的一种或多种。
9.一种权利要求1-8任一项所述的耐酸性抗菌草坪胶的制备方法，其特征在于：包括以下步骤：
(1)A组分：按配比将芳香族聚酯多元醇、小分子醇、抗氧剂投入反应釜中，加热溶解；再投入增塑剂、颜料、填料、防沉剂，高速搅拌分散均匀，真空脱水至水分0.08wt％以下,然后降温至50-60℃，投入催化剂，抗菌剂，搅拌均匀，制得A组分；
(2)B组分：将聚醚多元醇脱水后，理论NCO含量为25wt％加入对应量的多异氰酸酯，在75-80℃条件下反应1-3h，至NCO含量为24.7-25.3wt％，冷却至室温，制得B组分。
10.一种权利要求1-8任一项所述的耐酸性抗菌草坪胶的施工方法，其特征在于：将A组分和B组分按照比例搅拌分散均匀后，均匀摊铺于基础之上，摊铺草坪，1-3h后压实即得草坪。
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