CN" face="宋体" size="3">There are many factors affecting the performance of decorative laminates, such as the amount of glue, volatile content, hot pressing process and the performance of the base paper. Therefore, after understanding these factors, they should be strictly controlled under the conditions of production.
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, the impact of the amount of glue The amount of sizing refers to the weight percentage of the resin in the impregnated paper. As the amount of sizing increases, the mechanical properties of the decorative laminate also increase in the initial stage. When the amount of sizing reaches a certain value, the mechanical strength Reach the highest, onThe amount of glue continued to increase, the mechanical properties did not change significantly, and even decreased slightly, but the amount of glue increased the wear resistance, water resistance and dimensional stability.
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And the effect of volatile content Containing a certain volatile substance in the impregnated paper, it has a great influence on the physical properties of the decorative laminate, and the relative humidity increases.When the volatile content is increased, the tensile strength is remarkably lowered, and the flexural strength is also lowered to some extent. Therefore, production requires strict control of the volatile content of the paper.
Size and volatile content soluble resin, and when the volatiles were pressed to a minimum, impregnated paper illiquid, present, the actual production, controlling the volatile content, the surface sheet 6 to 9%, the decorative paper 5 to 8% The bottom paper is 6 to 8 %.3
, the effect of pressure on the performance of decorative laminates Hot pressing conditions: temperature, time and pressure are the main conditions for making decorative laminates. The pressure directly affects the specific gravity of the product. For example, the specific gravity is related to water absorption and moisture absorption. Therefore, the specific gravity of the small paper is large, and the product is hygroscopic. On the contrary, the product density is large, the water absorbing member is small, and the decorative laminate is also relatively stable, so the pressure is generally controlled at 6 to 8 MPa .4
And other factors The absorption of the base paper, the coverage of the added material, the printing quality, etc. all cause defects in the appearance of the decorative laminate. The pulp in the bottom paper is also impregnated due to the absence of impregnating glue. In short, there are many factors affecting the quality, as long as strict By controlling various process parameters and mastering the process operations, it is possible to overcome unfavorable factors and produce high quality decorative panels.Cheese Tools,Baking Tools,Baking Utensils,Kitchen Baking Tools
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