Although Ning Que was a little worried and nervous in his heart, since the senior sister said so, there should be no problem, this is the first time he has participated in the project defense, and I don't know if the previous defense will be as tense as it is now.

At this time, the scene was still a little noisy, although the experts' voices were very low, but after a lot of people still seemed noisy, Zhang Yi sat on the edge of the rostrum and watched quietly, although the university professors are already the highest status scientific research workers in the academic world, all of them are highly educated, but there have been academic misconduct before, scientific research results are fraudulent to defraud scientific research funds, but after all, these are very few.

Besides, everyone is a person with status, even if they question the authenticity of the results, at most they will submit the report to the academic committee afterwards, and the academic committee will investigate and deal with it, and they will not say the matter directly in front of so many people.

And Wang Muli is only suspicious, not even evidence, which is somewhat a bit of a bully.

The experts talked about it one after another, and a few of them also felt that Wang Muli's question was a bit excessive, and on this occasion, there was no festival, so it was better to be kind.

Although Wang Muli provoked the first fire, Fu Wenbin still sat calmly in his seat, his expression was calm, and he didn't have any special reaction.

Li Ze also knew that he was not qualified enough, he regarded this sunscreen project as the starting point for his rise, and he couldn't mess it up anyway, he was not worried about the current situation at all, but he was even more afraid that Wang Muli would not be able to answer the tricky questions, that is, the project was not well prepared.

Li Ze cleared his throat and said loudly: "Regarding the issue of academic ethics, I accept the supervision of the academic committee, and I also declare here that there will never be any academic misconduct in me. ”

"And the transfer of the patent to Norman Cosmetics is also a good proof, and the experts can check it, which can prove that there is no problem with my technology. ”

"On the other hand, I would like to thank all the experts again for coming to Jiangda to participate in my project defense, and all the experts have worked hard all the way. After speaking, Li Ze walked to the rostrum and bowed, and continued after coming back: "At the same time, I also hope that the experts can ask questions about the project itself and put forward more opinions. ”

This was neither humble nor arrogant, and it also responded well to Wang Muli's words just now, and the scene was a little silent.

Wang Muli's face was cloudy, he didn't know that Li Ze's patent had been transferred, otherwise he wouldn't ask such a question again, he just wanted to show his status, in his opinion, Li Ze would definitely continue to explain respectfully, so as to make him believe that the technology was real, but he didn't expect Li Ze to give him back.

Xia Zhongguo knew that this matter had to be revealed immediately, and hurriedly said, "Okay, next I would like to ask Professor Wei Xiuqing to ask questions." ”

One after another, the experts asked questions, and these questions were all routine questions, and Li Ze himself was very familiar with the project, and the preparations were also in place, so it was still very easy to answer these questions.

The expert's question has come to an end, only Fu Wenbin has not yet spoken, and at this time it is not only Li Ze who is nervous, but many experts are also holding their breath, wanting to know the academician's opinion on Li Ze's technology.

The opinion of the academician is not only crucial to a certain technology, but also can affect the national policy in many cases, although the defense is Li Ze's composite sunscreen project, but through Fu Wenbin's words, you may be able to gain insight into the future prospects of the cosmetic materials industry, which is what everyone cares about.

Seeing that everyone present looked at him intentionally or unintentionally, Fu Wenbin finally spoke: "Well, let me ask a few questions. ”

The long-awaited highlight is here.

The scene was suddenly silent, and while the professor was asking questions, there were no more people whispering in their voices.

Li Ze said nervously: "Academician Fu, please ask." ”

Fu Wenbin held the information in his hand, pushed the frame of his glasses to the wing of his nose with his hand, and then asked: "The first question, I see that you mentioned in your information that the main body of your research is a zeolite molecular sieve, and the object is nano titanium dioxide.

This question is not difficult, Li Ze was relieved, and replied: "In the process of our research, we have repeatedly experimented with different subject and object materials, and the main molecular sieve mainly includes STI zeolite zeolite and Y zeolite molecular sieve, and we have also done some research on the feasibility of A, ZSM-5 and other zeolite molecular sieves as the main body. ”

"The main objects are iron oxide, titanium dioxide, cerium dioxide and zinc oxide. Comparing the technical effects before and after, the data we obtained show that the Y zeolite molecular sieve with nano titanium dioxide particles has the best effect, and of course there may be a better combination, which needs to be further studied. ”

After Li Ze finished speaking, he projected the technical data just mentioned on the projector, no matter how good the words are, the data can not deceive people, and only when there is a comparison can the results be, Li Ze also presented the experimental results in the most direct way.

Fu Wenbin looked at it and nodded, and continued to ask: "For material preparation, precursors are very important, what is the effect of the precursors you choose? In addition to titanium dioxide, what are the precursors of other object materials?"

Li Ze projected the experimental data of the precursor on the projector, and replied: "The assembly technology mainly adopts the ion exchange method, and at the same time selects the appropriate guest precursor, in the iron oxide assembly, ferrous sulfate is used as the precursor, titanium dioxide is titanium trichloride as the precursor, cerium dioxide and zinc oxide are the corresponding soluble nitrate as the precursor, and the effect of the precursor is the best in the titanium trichloride precursor selected by titanium dioxide." ”

Fu Wenbin continued to ask lightly: "Okay, I asked two questions earlier, and your answers are very good, since it is to choose Y zeolite molecular sieve, use titanium trichloride as the precursor, and combine nano titanium dioxide to obtain a composite sunscreen, then, there is a question I don't know if you have noticed, you turned to page 19 of the information." ”

Fu Wenbin pointed to the inconspicuous picture in the information and said: "Although the change of the grain size of the molecular sieve-based nanocomposite sunscreen at the micron level has little effect on its SPF value, it is not without effect, and the larger grain size may cause a larger void after dispersion in the dispersant, which is the main reason for the low SPF value in sunscreen cosmetics, and your information does not give an explanation for this, I don't know if you have paid attention to this problem? How should this problem be solved?"

Grain size?

Li Ze suddenly became nervous, hurriedly flipped to the place Fu Wenbin said, looked at the picture he mentioned just now, and after reading it, Li Ze's heart suddenly became cold.

The effect of this grain size is very small, and I hesitated to study this problem when I did this experiment, but according to inertial thinking, such a small effect is ignored.

How could I have thought that Fu Wenbin would actually notice this place now, and put it forward as a defense question, what should I do?

Li Ze's brain began to sweat a little, the previous questions were all encountered when he was researching this project, he was not prepared for this question at all, his head was empty at this time, how could he know how to answer.

Ning Que saw that Li Ze hadn't answered Fu Wenbin's question for a while, and his palms were sweating nervously, so he approached Lin Xiayu, covered half of his mouth and asked in a low voice, "Senior sister, what should we do now?"

Lin Xiayu was also worried at this time, but Ning Que suddenly came over coldly and asked such a sentence, she was already anxious, and suddenly said angrily: "Don't say it, how do I know what to do." ”

Zhang Yi's seat is behind the rostrum, he is the only one here, and he is the closest to Li Ze, everyone regards him as the secretary of the record problem, and no one feels abrupt when he sits here.

The experts below have different thoughts in their hearts, some are worried, some are gloating, some are sympathetic, and some are holding the mentality of being a bystander who has nothing to do with themselves, but all of them have a common expectation, that is, they want to see how Li Ze answers this question.

Just as everyone was anxiously waiting for Li Ze's answer, Zhang Yi left his seat, walked two steps with his body down, handed a note to the rostrum, and quietly walked back to his seat.