CN116267979A - 一种生产海洋防腐涂料用防腐剂 - Google Patents
一种生产海洋防腐涂料用防腐剂 Download PDFInfo
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Abstract
本发明属于海洋防腐涂料技术领域,具体涉及一种生产海洋防腐涂料用防腐剂。一种生产海洋防腐涂料用防腐剂,所述防腐剂的有效成分由香叶醇与聚六亚甲基双胍盐酸盐复配而成。本发明防腐剂的有效成分由香叶醇与聚六亚甲基双胍盐酸盐以一定质量比组合复配而成,能提高对多种霉菌的抑制效果,进而可以有效防止微生物的侵害,保证涂料生产和贮存过程中不产生腐败变质;其次,可以减少防腐组分的用量及降低防腐成本,可以为生产海洋防腐涂料提供支持。
Description
技术领域
本发明属于海洋防腐涂料技术领域,具体涉及一种生产海洋防腐涂料用防腐剂。
背景技术
海洋约占地球表面积的70%左右,其蕴藏着及其丰富的海底资源,比如石油、天然气和各种矿物质等等。海洋防腐是海洋工程的关键技术之一,金属在海洋中腐蚀导致的应力腐蚀断裂、腐蚀疲劳和晶间腐蚀等会使海洋工钢结构发生突然的断裂,导致海洋环境生态灾难,造成巨大损失。海洋防腐涂料是指海洋环境中使用的防腐蚀涂料,其一般要求具有如下性能:具有良好的物理性能,对腐蚀介质抗渗性好,对钢材表面附着力好;具有良好的力学性能,耐海水冲刷、耐海水、耐盐雾、耐油、耐化学品和耐紫外线等的侵蚀。
现有技术中也公开有多种海洋防腐涂料,但海洋防腐涂料和现有其他种类的涂料一样,其组分中含有有机物质,这些有机物质为微生物的生长繁殖提供了基本条件。在适宜的条件下,会促进微生物的大量生长繁殖,在此过程中,微生物产生的酶和有机酸等代谢产物会引起涂料气味、颜色和黏度等发生变化,造成产品变质。防腐剂可以抑制微生物生长,在产品中添加适量且合适的防腐剂可以有效防止微生物的侵害,保证涂料生产和贮存过程中不产生腐败变质。
现在市面上的防腐剂有多种,比如BCM、OIT、IPBC、IPN(CLT)和DCOIT等。但随着随着防腐剂长期单一有效成分使用,多种微生物已对其产生抗药性,导致对其多种霉菌的抑制效果逐渐减低。
不同防腐组分可以以不同的比例进行组合复配,其中具有协同增效作用的能提高对霉菌的抑制效果,减少用量及降低成本。CMIT/MIT+FR就是一种很常用的组合复配,其具有高效广谱的杀菌作用,但并非将任意两种或多种防腐组分进行组合复配都能达到协同增效作用的效果。
发明人通过室内增效试验发现将香叶醇和聚六亚甲基双胍盐酸盐以一定质量比进行组合复配时能提高对多种霉菌的抑制效果,进而可以有效防止微生物的侵害,进而保证涂料生产和贮存过程中不产生腐败变质。
公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明的目的在于提供一种生产海洋防腐涂料用防腐剂,其有效成分中的香叶醇和聚六亚甲基双胍盐酸盐以一定质量比进行组合复配时能提高对多种霉菌的抑制效果,进而可以有效防止微生物的侵害,保证涂料生产和贮存过程中不产生腐败变质。
为实现上述目的,本发明提供了如下技术方案:
一种防腐剂,所述防腐剂的有效成分由香叶醇与聚六亚甲基双胍盐酸盐复配而成。
作为优选,所述香叶醇与聚六亚甲基双胍盐酸盐的质量比为1-5:19-1。
本发明还提供了所述的防腐剂在生产海洋防腐涂料中应用。
与现有技术相比,本发明具有如下有益效果:
本发明防腐剂的有效成分由香叶醇与聚六亚甲基双胍盐酸盐以一定质量比组合复配而成,能提高对多种霉菌的抑制效果,进而可以有效防止微生物的侵害,保证涂料生产和贮存过程中不产生腐败变质;其次,可以减少防腐组分的用量及降低防腐成本,可以为生产海洋防腐涂料提供支持。
具体实施方式
下面对本发明专利的技术方案进行清楚、完整的描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域所属的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。
实施例:香叶醇和聚六亚甲基双胍盐酸盐增效试验
1.试验霉菌
黑曲霉(Aspergillus niger)
黄曲霉(Aspergillus flavus)
宛氏拟青霉(Paecilomyces variotii)
保存于PDA培养基上,备用。
2.试验药剂:98%香叶醇原药(上海源叶生物科技有限公司)和95%聚六亚甲基双胍盐酸盐原药(上海源叶生物科技有限公司)
先将各原药用二甲基亚砜溶解,然后用0.1%吐温-80水溶液分别配制成单剂母液,设置多组配比,各单剂和每组配比再用0.1%吐温-80水溶液按照等比方法稀释成5个质量浓度梯度,备用。
3.试验方法:菌丝生长速率法(慕立义1994)
将1mL试验药剂与9mL融化的PDA培养基混匀,倒入无菌培养皿中制成含药平板。待培养基凝固后,在含药平板中央放入1个霉菌菌饼(直径5mm),以0.1%吐温-80水溶液为对照,每个处理设置3次重复。放入培养箱中,28±1℃下培养3d后,用十字交叉法测量霉菌菌落生长直径,计算抑制率。
4.数据分析
用DPS软件对试验药剂浓度对数值和菌丝生长抑制率几率值进行回归分析,计算各处理药剂的EC50,并根据孙云沛法计算混剂的共毒系数(CTC值)。
根据共毒系数(CTC)评价药剂混用的增效作用,即CTC≤80为拮抗作用,80<CTC<120为相加作用,CTC≥120为增效作用。实验结果见表1-3。
表1香叶醇(A)和聚六亚甲基双胍盐酸盐(B)复配对黑曲霉的毒力
从表1可以看出,香叶醇和聚六亚甲基双胍盐酸盐质量比为1:19时,对黑曲霉表现为相加作用,在1-5:15-1范围内对黑曲霉表现为增效作用。
表2香叶醇(A)和聚六亚甲基双胍盐酸盐(B)复配对黄曲霉的毒力
从表2可以看出,香叶醇和聚六亚甲基双胍盐酸盐质量比为1:1时,对黄曲霉表现为相加作用,在1:19-5范围内及5:1时对黑曲霉表现为增效作用。
表3香叶醇(A)和聚六亚甲基双胍盐酸盐(B)复配对宛氏拟青霉的毒力
从表3可以看出,香叶醇和聚六亚甲基双胍盐酸盐在1-5:19-1的质量比范围内对宛氏拟青霉表现出增效作用。
综上所述,香叶醇和聚六亚甲基双胍盐酸盐组合使用时对黑曲霉(Aspergillusniger)、黄曲霉(Aspergillus flavus)和宛氏拟青霉(Paecilomyces variotii)等多种霉菌表现出增效作用,与单一防霉组分相比,能提高对多种霉菌的抑制效果,进而可以有效防止微生物的侵害,保证涂料生产和贮存过程中不产生腐败变质;其次,可以减少防腐组分的用量及降低防腐成本,可以为生产海洋防腐涂料提供支持。
前述对本发明的具体示例性实施方案的描述是为了说明和例证的目的。这些描述并非想将本发明限定为所公开的精确形式,并且很显然,根据上述教导,可以进行很多改变和变化。对示例性实施例进行选择和描述的目的在于解释本发明的特定原理及其实际应用,从而使得本领域的技术人员能够实现并利用本发明的各种不同的示例性实施方案以及各种不同的选择和改变。本发明的范围意在由权利要求书及其等同形式所限定。
Claims (3)
1.一种防腐剂,其特征在于,所述防腐剂的有效成分由香叶醇与聚六亚甲基双胍盐酸盐复配而成。
2.根据权利要求1所述的防腐剂,其特征在于,所述香叶醇与聚六亚甲基双胍盐酸盐的质量比为1-5:19-1。
3.权利要求1-2任一项所述的防腐剂在生产海洋防腐涂料中应用。
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