מבוא

Transparency is a crucial property in paint production, משקף את יכולתו של חומר לחדור לאור. Transparency not only directly affects the appearance and gloss of coating products, but also its performance and quality. In this paper, the importance of transparency in coating production and the detection method of transparency will be discussed in depth.

שקיפות הציפויים ושיטת הזיהוי שלו

The importance of transparency

Transparency has a profound impact on the quality and performance of coating products, and the following are some aspects of its importance:

Appearance and gloss: Transparency directly affects the appearance and gloss of the coating after film formation. High transparency paint can present a bright, clear surface, while low transparency paint may appear cloudy and not smooth. This is particularly critical for applications that require a high-quality appearance, such as automotive painting and furniture manufacturing.

Color performance: Transparency also affects the performance of paint color. In coatings with high transparency, colors are more likely to show their original vividness and depth. In coatings with low transparency, the color may be distorted or dim. This is important for industries that require high color fineness, such as printing and art production.

Adhesion and chemical resistance: The transparency of the coating is also related to its adhesion and resistance to chemical media. Cloudy and opaque coatings may result in reduced coating adhesion, while reducing the ability to resist chemical corrosion.

Product quality control: Transparency is a key parameter of paint quality control. By monitoring the transparency of coatings, manufacturers can identify possible problems in a timely manner and take corrective action to ensure that products meet quality standards.

שקיפות הציפויים ושיטת הזיהוי שלו

Transparency detection method

In order to measure the transparency of coatings, there are two common detection methods: visual method and instrument method.

1. Visual method

The visual method is a traditional method of transparency detection. Its principle is to compare the transparency of the sample visually under the transmitted light. על פי הוראות GB/T 1721-2008, the steps of the visual method are as follows:

The sample was placed into a colorimetric tube with a capacity of 25mL.

Adjust the sample to temperature (23±2)מעלות צלזיוס.

In the obscura, the sample is compared with a series of standard liquids of different turbidity levels.

התוצאות מתבטאות בשלוש רמות של שקיפות, אטימות ועכירות, זה, רָמָה 1, 2 ו 3 בתקן.

למרות שיטה זו פשוטה, הוא מושפע משיקול דעתו הסובייקטיבי של המפעיל, וייתכן שיש אי ודאות מסוימת. בנוסף, ייתכן שהוא לא רגיש מספיק לצבעים כהים יותר.

שקיפות הציפויים ושיטת הזיהוי שלו

2. שיטת מכשיר

שיטת המכשיר משתמשת במד עכירות פוטו-אלקטרי כדי למנוע את ההפרעה לתוצאה החזותית עקב הגוונים השונים של צבע המוצר ולשפר את דיוק הבדיקה. העיקרון של שיטת המכשיר הוא כדלקמן:

מקור האור במכשיר פולט אור, אשר מפוזר דרך זיהומים או חומר מרחף במבחנה.

האור המפוזר מוחזר דרך הרפלקטור ומוקרן על הנגד הפוטו לפני קבלתו.

By measuring the intensity of the received scattered light, the turbidity of the paint can be calculated, expressed in numbers.

This method has high accuracy and repeatability, especially for paints with darker colors or requiring more accurate measurements.

סיכום

Transparency is a key property in coating production, which directly affects the appearance, צֶבַע, performance and quality of coating products. With proper transparency testing methods, manufacturers can ensure that products meet quality standards and meet customer needs. Transparency requirements can vary from industry to industry, so choosing the right detection method is crucial. By focusing on transparency, we can produce more attractive and high-quality coating products that meet the needs of a variety of applications.