Abstract Many of the concepts of toughening diamond saw blades come from plastics. Coreshell particles are also used to toughen plastics. Rohmhaas is a pioneer in this field. They have core shell particles with different core materials. original...
Many of the concepts of toughening diamond saw blades come from plastics. The core shell particles are also used to toughen plastics. Rohmhaas is a pioneer in this field. They have core shell particles with different core materials. In my original project, I also gave them relevant samples, and there was a problem. Their particle diameter was too large and could hardly be used for diamond saw blade adhesives. Germany's research on core-shell particles is also very rewarding. They have developed micron-sized core-shell particles that can be used in diamond saw blade adhesives, while greatly improving impact strength and peel strength, but micron particles. The diameter is filled in the diamond saw blade, and the diamond saw blade becomes opaque. If it is used for optical applications, it must be excluded. At the same time, the time for purchasing in Germany is indeed too long. For this sample, I am tossing enough, just rushing. It’s worse on the Olympics. In China, there are many people doing research in this area. At least there are many papers. The brothers of our project team also personally called to consult a research institute. The expert said that we can give us samples, we have to wait for half a month, and they just experiment. Room synthesis, huh, huh, have not passed the pilot raw materials, or do not consider it, do not say quality assurance, when it can be done or trouble, the boss wants efficiency, as a research and development engineer, do not give yourself a block, give up Let's go. I am honored that I have found what I want, nano-core shell particles, a wide variety of core structure, a wide range of choices, and the particles are generated by block structure, many ideas with the traditional Similarly, many people think of core-shell particles, which are polymers that are emulsified and emulsified. Moreover, the surface of the particle has a reactive group, which can be chemically bonded to the base resin skeleton by the action of a diamond saw blade curing agent, thereby solving the problem that the single core shell particle is dissolved in the diamond saw blade, thereby toughening the core material. Situation.
The toughening of core-shell particles consists of a sea-island structure and a perforated machine. The shell is thermally swelled or dissolved, which can offset the exothermicity of some of the curing agent. At the same time, because the particles are well suspended in the resin, To a certain extent, it can prevent the other component powder additives from sinking after the resin is heated and thinned (for those who are interested, the related literature on the influence of the particle size distribution on the filler precipitation) can be consulted.
The biggest advantage of this particle is that others have dispersed the particle in the diamond saw blade to solve the problem of dispersion and dispersion stability. We only need to add it according to the ratio we want, without considering the problem of uneven dispersion. . Since the particles are nano-scale, the cured diamond saw blade is almost transparent (curing agent ICAM 8403, polyamide adduct), does not reduce the storage stability of the one-component diamond saw blade, due to two toughening The presence of the machine, almost no need to consider the problem of the curing system, the viscosity is small, and the viscosity temperature coefficient is relatively large.
Since the core-shell particles are almost halogen-free, it is especially convenient for the microelectronics industry where halogen requirements are relatively high. If necessary, mix them with the halogen-free resin you want. (Reprinted on Sanxiang Technology's official website)
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