Development of a NMP-free paint stripper

不含NMP脱漆剂的开发

基本信息

批准号：
560286-2020
负责人：
Guay, Daniel
金额：
$ 1.46万
依托单位：
Institut national de la recherche scientifique
依托单位国家：
加拿大
项目类别：
Alliance Grants
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=706336
关键词：
Development NMP free paint stripper

项目摘要

Our industrial partner, GreenSolv, is marketing a paint stripper, the AeroStrip 274WL, which contains N-Methyl-2-Pyrrolidone (NMP). It is used to remove paint coatings from metallic pieces so that they could be refurbished and reused. However, NMP (CAS 872-50-4) is almost banned in Europe and frowned upon in California. Large corporations such as the US Navy, Bombardier, Pratt & Whitney, Boeing & others are looking for a NMP-free paint stripper that could be as effective as the AeroStrip 274WL. The objective of this project is to make a new product, the AeroStrip 294WL, a NMP-free paint stripper. In a series of test performed by Scientific Material International, Inc (SMI) in Florida, in accordance with MIL-PRF-83936C (USAF) for aircraft wheels, landing gear components and other aircraft and support equipment, it was shown that the AeroStrip 294WL was causing excessive corrosion and hydrogen embrittlement on metallic pieces made of aluminium, magnesium and steel. Clearly, the current version of the AeroStrip 294WL is not acceptable for the aerospace industry. It is critical to understand the role NMP is playing in the formulation of the AeroStrip 274WL. NMP plays a determining role in removing paint coatings, by penetrating the layers of paint and breaking the bond between the paint and the object by swelling the paint. However, NMP is also playing a critical role in retarding/preventing corrosion and hydrogen embrittlement in metallic pieces. It is critical to understand the link between NMP and the corrosion and hydrogen embrittlement of metallic pieces, and how to remediate to this unexpected effect of the absence of NMP in the AeroStrip 294WL. This project will address these issues through a detailed evaluation of the role played by NMP, solution pH and solution alkalinity in the hydrogen embrittlement of metal coupons such as cadmium coated steel, aluminium and magnesium.

我们的工业合作伙伴Greensolv是销售油漆脱衣舞娘，Aerostrip 274wl，其中包含N-甲基-2-吡咯烷酮（NMP）。它用于从金属碎片中取出油漆涂层，以便可以翻新和重复使用。但是，NMP（CAS 872-50-4）在欧洲几乎被禁止，并在加利福尼亚皱了皱眉。美国海军，庞巴迪，普拉特和惠特尼，波音公司等大型公司正在寻找一种无NMP的油漆脱衣舞娘，可能与Aerostrip 274WL一样有效。该项目的目的是生产新产品，即无NMP油漆脱衣舞娘的Aerostrip 294wl。在佛罗里达州科学材料国际公司（SMI）进行的一系列测试中，根据MIL-PRF-83936C（USAF），用于飞机车轮，起落架组件以及其他飞机和其他支撑设备的测试，这表明Aerostrip 294WL 294WL正在造成过多的腐蚀和氢头钢材，并在金属上造成了金属材料，并造成了Almiminem of Magnemium of Mangium of Magnemium of Magnemium and Magnemium of Magneminemimium。显然，当前版本的Aerostrip 294WL对于航空航天行业不可接受。了解NMP在Aerostrip 274WL的配方中所扮演的角色至关重要。 NMP通过穿透油漆层并通过溶胀涂料来打破油漆和物体之间的键，从而在去除油漆涂层中起着决定性作用。但是，NMP在延迟/预防金属碎片中的腐蚀和氢含糖方面也起着关键作用。了解NMP与金属碎片的腐蚀和氢的含量之间的联系至关重要，以及如何解决Aerostrip 294WL中NMP的意外影响。该项目将通过详细评估NMP，溶液pH和溶液碱度在金属优惠券（如镉涂层钢，铝和镁）中所起的作用来解决这些问题。