马来西亚神奇的纳米二氧化硅多功能助剂Nanosil

mikel_xi

各位涂料行业同仁，
2012年广州涂料展期间，有一家名为那挪修的马来西亚公司，分发了很多纳米二氧化硅的助剂，该公司的宣传资料号称该产品有很多的神奇之处。包括以下几点： 有那么神奇吗？请测试过的朋友一起分享下！
Nanosil 8030|Nanosil 8038 |Nanosil 4040 |Nanosil 4048

产品概述
Nanosil系列产品是专为延长重要涂层表面的寿命而设计的。革命性的纳米技术合成的纳米复合材料是一种三维分子组合包裹着各种纳米材料,从而显着提高涂层的抗刮耐磨性,硬度,粘附性和疏水性,这些分子组合创建形成纳米尺度范围的几何形状互补的(如凸与凹相间)界面结构,使其有效改善涂膜与各种不同的基面的粘附功能。Nanosil系列产品(涂料添加剂)可以自我非常有规律的聚合在涂层表面,这种灵活,自我愈合的表面层,可以改善涂层的黏附力,耐腐蚀,物理和化学的稳定性(耐候性)坚韧耐磨。

产品特性
漆膜硬度：独特的表面结构，拥有较高的漆膜硬度，具备较高的耐擦刮性能，坚韧耐磨。
透明度：透明度高，不影响涂料体系的透明性。
疏水效果：具有荷叶般的奇特疏水效果，使其强抵卸水的侵蚀，水珠连带污垢和其他污染物一起脱离涂膜表面，这种自洁功能有助于维护涂层的清洁，并使涂层快干，减少其留下的痕迹。不像涂层表面的蜡，清洗一次已经一去不复返，Nanosil 涂层表面的疏水效果是持久性的。事实上通过候化，它是越久越好。
承压功能：添加了Nanosil 纳米添加剂使涂层表面形成x aerogel 的特殊功能，具有超越的弹张功能，减少热扩张和内部压力，从而加强其耐热和承压功能。
沾黏度：沾黏度强，更能增强防锈功能。
耐磨和自洁功能：Nanosil 的多微孔结构，在涂膜表面形成纳米尺度范围内几何形状互补的（如凸与凹相间）界面结构，使其吸附空气而在表面形成一层稳定的气体阻隔膜，从而有效改善涂膜表面的粉尘附着性，提高涂膜的耐沾污性和自洁能力。
抗紫外线：Nanosil 的粒径超小，远小于光的波长，它的表面分率高，使涂层表面更具备高抗紫外线的作用，即使在阴天，也可利用光催化性能，防止有机污垢粒子在涂层表面形成，对紫外光和可见光都呈现较高的反射特性，提高Nanosil清漆的抗紫外老化退色功能，确保涂层表面色泽长久鲜明，拥有明亮的色彩。
抗菌防霉：抗菌防霉，且仰制藻类生长。
耐候：超强耐候性。
修补裂痕：能修补表面细微裂痕。         


NANOSIL 产品
Nanosil系列涂料添加剂是特别为涂料主体带来独特的性能而设计的。然而,每一种涂料添加剂与涂料主体的兼容性和能否赋予涂料主体独特的性能取自于多种因素。请参阅Nanosil产品的技术资料,包括其典型性能,产品说明和添加程序。
NANOSIL 8030
Nanosil8030是一种成膜透明液体,纳米二氧化硅分散在醋酸丁脂。它是一种功能性添加剂,能赋予涂层表面硬度,抗刮耐磨性和加强涂层与各种基面的黏附性。由于其优异的透明性和兼容性,它最适合用于所有类型的清漆(光油)和表面漆。
NANOSIL 8038
Nanosil8038乃是一种成膜透明液体。它是由Nanosil8030与纳米PTFE配成的混合物分散在醋酸丁酯的涂料添加剂。除了能赋予涂膜超低表面伸张力和其他类似氟聚合物的固有功能,也能赋予涂膜像Nanosil8030固有的特性,比如增强涂膜硬度,耐磨耐刮和加强涂层与各种基面的黏附性。添加了Nanosil8038的涂料特别适用于金属屋面,金属建筑板,柱套,雨水槽,壁板,楣板装饰,暖通空调,照明灯具,电器和金属卷材料等。此等金属材料基面所需的涂膜不单要能抵征严竣的室外恶劣环境,还要抗衡室内粗劣运用。
NANOSIL 4040
Nanosil4040携带着一个小于0.4%的低负荷,能提高了抗刮耐磨性,尺吋稳定性的刚度,低收缩率,流线,耐冲击性,颜料分散性能和色度,外观的饰面与涂层的机械和物理性能。最重要的是Nanosil4040在专有的制造过程中每一颗粒 ( 8 – 11 纳米 ) 都涂上一层安米(1000安米=1纳米)厚的保护层,使其增加疏水性,分散功能和不聚集。Nanosil4040是特别设计的涂料添加剂,赋予涂料体系在添加后显著增加表面硬度,抗刮耐磨性能,促进色素分散和流平效果。Nanosil4040涂料添加剂一般是用于浮胶漆。
NANOSIL 4048
Nanosil4048是一种透明胶溶体携带着Nanosil4040与纳米PTFE配合而成的混合物分散在聚乙二醇。Nanosil4048除了赋予涂膜超低表面伸张力和其他类似氟聚合物的固有功能,也能赋予像Nanosil4040原有的特性。Nanosil4048一般用作涂料添加剂添加在浮胶漆体系,增强涂膜的疏水和抗刮耐磨功能。

alligatork

我不懂这行啊，听着像气象二氧化硅的溶液。

blacksaphire

我也看到了，他们正在中国地区寻找代理商。
纳米硅助剂，有没有那么玄乎，因为没有配方试验数据，不好说。样品我拿了，还没来得及测

木嘻嘻嘻

楼上试的结果如何

午夜一支烟

说白了就是纳米粉体溶液，这类产品国内多啦，5年前国内就有好几家公司在推广了，进口BYK公司也有。

子布

呵呵，既然广而告之，何不大撒？让大家多做做测试，这样也好对产品对口的行业有个深入的细分！对呀！王道是多少范围？/:+-

mikel_xi

这个不是气相二氧化硅的分散体，否则也太简单了。而且气相二氧化硅根本就没法做到55%的固含。这个是二氧化硅的气凝胶技术。试过的客户几乎都能够认同他的性能。

SUNYAN1836

个人认为它是气相白炭黑的一个分散液，混合了聚四氟乙烯。也许做了加工
涂覆了聚四氟乙烯。不过理念很不错。

榴连

几年前用过类似的nanoresins AG 公司的产品，有些特殊性能，确实是好东西。例如可以增加耐磨性，可以增加耐候性等。
并且象Evonik（Degussa）、BASF、CYTEC等公司都推出的接近的产品。
但如下几个方面会影响其推广：
（1）价格高，成本高；
（2）应用方法受限：对制造工艺、溶剂极性等要求极高，如配制时不注意，极容易产生结晶析出；
（3）外观不清澈透明

以前试过的产品资料如下：
SIGNIFICANTLY IMPROVED SCRATCH RESISTANCE AND ABRASION RESISTANCE IN SOLVENT-BASED COATING SYSTEM
nanoresins applied the same principle of surface-modified nanoparticles for solvent-based coating materials. Nanopol® allows formulation of low-viscosity, sedimentation-free systems even at high filler contents.
Product overview
Improvements to properties
How it works
Application remarks
Product overview [back]
Technical data (no specification)
Type         Characterization         SiO2- content [wt%]         Dyn. viscosity, 25°C
Nanopol ® C 784        n-Butylacetat        50        20 mPa•s
Nanopol ® C 764        Methoxypropylacetat        50        20 mPa•s
Note: Both Nanopol® C products are free from resins and additives. Further products and mixtures for special applications are available on request. Please contact our application specialists.
Improvements to properties [back]
Nanopol® C products are colloidal silica sols in various solvents. These products are low viscous and do not show sedimentation, i.e. the processability remains essentially unchanged in comparison to the respective base resin. In the ready cured film Nanopol® C products are highly transparent. In this way the specific advantages of organic and inorganic materials can be combined almost perfectly.
Important properties which can be improved in 1-part and 2-part formulations through the use of Nanopol® C are:
•        Significantly improved scratch and abrasion resistance
•        No reduction in transparency and gloss for the coating
•        Barrier effect against gases, water vapor and solvents
•        Increased weathering resistance and inhibited thermal aging
•        Reduced thermal expansion and internal stresses
•        Increased tear resistance, fracture toughness and modulus
•        Improved adhesion to a large number of inorganic substrates (e.g. glass, aluminium)
•        No adverse impact to numerous desired properties such as curing speed and prevention from sagging
•        Improvement to other desired properties such as: thermal stability, stain-resistance, heat conductivity, dielectric properties
Nanopol® C is used in applications where these property improvements are desired or necessary, without compromising processability by an excessive viscosity increase (as known from e.g. fumed silica). The fact that this is possible without loss of optical clarity makes Nanopol® C particularly suitable for transparent formulations. Highly scrub resistant transparent lacquers for plastic (e.g. PC, PVC, SAN) or wood are known as examples.
How it works [back]
The nanoparticles are synthesized from aqueous sodium silicate solution in a chemical process. The dispersed phase of Nanopol® C consists of surface-modified, spherically shaped SiO2 nanoparticles with diameters of 20 nm and an very narrow particle size distribution (Fig. 1).


Figure 1: Particle size distribution (determined by SANS)
The SiO2 spheres are distributed homogenously and agglomerate-free in the resin matrix. This results in a very low viscosity of the dispersion despite SiO2 contents of up to 50 wt%.
Application remarks [back]
Nanopol® C can be used alone or as an additive in 1-part and 2-part formulations and can be cured by aliphatic isocyanate hardeners. In addition, Nanopol® C can be used in dual cure and UV-curing systems.
The required total nanosilica content in the ready formulation is dependent on the desired product properties. In general, the above-listed effects increase proportionally to the solids content. As a result, as high a SiO2 content as possible is recommended (≥ 20 wt%, corresponding to e.g. ≥ 40% Nanopol® C 784) for first screening tests. The optimum content should then be determined through systematic tests.
If necessary, additional conventional fillers (Al2O3, glass micro-pearls etc) can be used. The nanoparticles then fill the space between the micro-particles. This enables the formulator to increase the total content of inorganic fillers and thus optimise the material properties, without having to compromise the formulation viscosity.
To ensure optimum compatibility, we recommend premixing the main binder and additives (without solvents) and then adding the Nanopol® C to this mixture while stirring. Subsequently, the solvents and co-binders should be added while still stirring.  
Nanopol® C products are compatible with most acrylate and polyester polyoles. Nevertheless, compatibility with the individual formulation components should be tested prior to formulation development. Nanoparticles tend to form agglomerates if their stabilization is influenced by unsuitable components. In particular, this may be the case with solvents like e.g. white spirit, xylene, benzene or toluene and certain performance additives (e.g. several lubricants, UV stabilizers and amine functional additives). A list of suitable commercial additives can be obtained from nanoresins (Technical Information “Suitable additives for Nanopol® formulations”).
For further details, please contact our application specialists.

mamba

榴连 发表于 2013-4-19 21:18
几年前用过类似的nanoresins AG 公司的产品，有些特殊性能，确实是好东西。例如可以增加耐磨性，可以增加耐 ...

榴莲哥，之前你测试的nanoresins的产品是用在哪方面的涂料中，有没有测试过nanoresins的其他产品？
学习中..../:sexy