Yellow silicone paper is a material widely used in packaging, baking, electronics and other fields. Its anti-sticking property is one of its key characteristics. The amount of silicone oil coating is an important factor affecting the anti-sticking property of yellow silicone paper. Understanding the quantitative relationship between the two is of great significance for accurately controlling the performance of silicone oil paper and meeting the needs of different application scenarios.
Generally speaking, the anti-sticking property of yellow silicone paper will gradually improve with the increase of silicone oil coating. Silicone oil forms a continuous thin film on the surface of paper, which can reduce the friction and adhesion between paper and other surfaces, thereby playing an anti-sticking role. When the amount of silicone oil coating is low, the silicone oil on the surface of the paper is unevenly distributed and cannot completely cover the microscopic concave-convex structure of the paper. There are some areas not covered by silicone oil, which are prone to adhesion with external objects, resulting in poor anti-sticking performance.
In order to study the quantitative relationship between the anti-sticking property of yellow silicone paper and the amount of silicone oil coating, experimental methods are usually used. First, prepare a series of yellow silicone paper samples with different silicone oil coating amounts. The silicone oil coating amount can be precisely adjusted by controlling the coating process parameters, such as coating speed, coating roller pressure, silicone oil concentration, etc. Then, use professional testing equipment, such as peel strength tester, to measure the peel force between different samples and specific adherends (such as plastic film, rubber sheet, etc.). The magnitude of the peel force can intuitively reflect the anti-adhesive performance of silicone oil paper. The smaller the peel force, the better the anti-adhesive performance.
The experimental results show that within a certain range, the silicone oil coating amount and the anti-adhesive performance are approximately inversely proportional. When the silicone oil coating amount increases from a low level, the peel force decreases rapidly and the anti-adhesive performance improves significantly. For example, when the silicone oil coating amount increases from 1g/m² to 3g/m², the peel force may decrease from 10N/25mm to 3N/25mm. This is because as the silicone oil coating amount increases, the silicone oil film on the surface of the paper gradually improves, the coverage area increases, and the direct contact between the paper and the adherend is effectively blocked, thereby reducing the adhesion. However, when the amount of silicone oil coating increases to a certain extent, the downward trend of the peel force gradually slows down. For example, when the amount of silicone oil coating increases from 5g/m² to 7g/m², the peel force may only drop from 1.5N/25mm to 1.2N/25mm. This is because the surface of the paper is basically completely covered by silicone oil at this time, and the effect of further increasing the amount of silicone oil coating on the improvement of anti-adhesive performance is no longer obvious.
It should be noted that the quantitative relationship between the anti-adhesive performance of yellow silicone paper and the amount of silicone oil coating is also affected by other factors. For example, the material and surface characteristics of the base paper will affect the adhesion and distribution of silicone oil, and then affect the anti-adhesive performance. If the surface of the base paper is too rough or the pores are too large, the silicone oil may penetrate into the inside of the paper, resulting in insufficient thickness of the silicone oil film on the surface, affecting the anti-adhesive effect. In addition, the ambient temperature and humidity will also affect the anti-adhesive performance. In a high temperature environment, the viscosity of silicone oil will decrease, which may increase the fluidity of the silicone oil film, thus affecting the anti-sticking performance; in a high humidity environment, paper is easy to absorb moisture, which changes the performance of the silicone oil film and also has an adverse effect on the anti-sticking performance.
In practical applications, it is necessary to select the appropriate silicone oil coating amount according to the specific use requirements. For some occasions with high requirements for anti-sticking performance, such as the packaging of precision electronic components and high-end baked goods, a higher silicone oil coating amount is usually required to ensure that a good anti-sticking effect can be maintained under various environmental conditions. For some application scenarios that are more sensitive to cost, such as the packaging of ordinary daily necessities, the silicone oil coating amount can be appropriately controlled to reduce costs while meeting the basic anti-sticking requirements.
There is a complex quantitative relationship between the anti-sticking performance of yellow silicone paper and the silicone oil coating amount. Within a certain range, as the silicone oil coating amount increases, the anti-sticking performance will be significantly improved, but when the silicone oil coating amount reaches a certain level, the effect of continuing to increase the coating amount on the improvement of the anti-sticking performance will gradually weaken. At the same time, factors such as base paper material, ambient temperature and humidity will also affect the relationship between the two. In actual production and application, it is necessary to comprehensively consider various factors and accurately control the amount of silicone oil coating according to specific needs to achieve the best balance between the anti-sticking performance and cost of yellow silicone paper.
