Adhesive formula design of the basic program is usually: selection of sticky material - analysis of the functions and features of each component - set formula - formula of preliminary experimental optimization design - the preparation of sample analysis experiment - determine formula - preparation test - test - determine formula design review - application.
A. Select the glue material
The performance of the adhesive material decides the performance of the adhesive, should be used according to the glued use environment, factors such as functionality, performance, price ratio and user requirements to choose size, optional one or several kinds of adhesive materials, determined by contrast test.
2. Set the initial formula
In the adhesive composition, on the basis of function analysis and research, design a preliminary formula, the dosage of each component. If the development of new varieties of adhesive, can be set multiple dosage, so that the contrast test.
3. Determine the formula
Once formula was determined, it can be mass production, and according to the formal product testing procedures, sampling, validation formula quality repeatability and the ability to adapt to mass production, and make corresponding process procedures.
4. The adhesive development files and review
Will be produced in the process of formula design and preparation of the formula, test methods, process planning and product according to the standard and the acceptance form file, such as adhesive production after evaluation guidance.
5. Analysis of the functions and features of each component
Adhesive is selected, the main agent according to the main performance and function demand of the application and selection such as filler, curing agent, coupling agent, thinner, such kind of fertilizer, and determine its dosage, in order to improve the performance, the main agent improve adhesive applying process. The process of selecting additives is also the process of analysis and research on characteristics of auxiliary functions. Choose the types of additives should decrease as far as possible, the dosage is appropriate, to reduce costs, ensure the quality of adhesive shall prevail.
6. The formula of experimental optimization design
Best for preliminary formula design and numerical simulation to make or make actual preparation, dosage of components to experiment to optimize the design. A lot of experimental design methods, such as orthogonal design, part of the factorial design, full factorial design, mixture design, etc., can be optimized formula. If adhesive the sum of each component is 100%, the mixture design is the best way to optimize formula.
Seven. The preparation of sample analysis experiment
Basic determine dosage of components, we should be in trial production, and manufacture of sealing adhesive for bonding or application, through to the adhesive or joint statements or dynamic analysis test, to see if it meet the performance requirements. If can meet the design requirements, formula design is successful, some improvement can meet the design performance requirements; If can't meet the design performance requirements, but also must be designed.
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