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Professor Sun nodded.

Everyone took a deep breath.

They have only studied solid or liquid engines.

But a solid-liquid hybrid engine has never been developed!

this......

Suddenly they looked at Shen Zhe with full admiration.

Let alone whether it can be successfully developed.

After all, all research institutes in China have never developed a solid-liquid hybrid engine.

Having this courage is very-admirable.

In fact, before this, there were many young people with passion, wanting to make China one step further in scientific research.

But in the end they had to give up.

Because it is so difficult!

One of the researchers cautiously walked towards Shen Zhe.

It seemed to disturb Shen Zhe for fear of a little noise.

Shen Zhe heard someone coming and didn't speak.

I have been busy with my own business.

The man bent over and lowered his head, and held his glasses with his hand.

Squinted and looked at.

"Will liquid N2O/HTPB propellant be used?"

Shen Zhe nodded.

"What are the advantages of this propellant?"

"The thrust is large, the specific impulse is large, the working time is long, and the combustion chamber pressure is 2MPa."

"Oh~" He nodded clearly, "So it's like this..."

"Learn another knowledge!"

"Liquid N2O/HTPB propellant..."

A group of scientific researchers at the door picked up the pen in their hands and started to record.

"I have a question and want to take a leave of absence, Mr. Shen, don't know if you have time?"

"I also have a question to ask Mr. Shen. I wonder if Mr. Shen understands liquid rocket engines?"

"I......"

At this time, Professor Sun rushed up.

Drive them out.

Then he deliberately said in a low voice, "Don't bother Mr. Shen, Mr. Shen is still busy."

"Mr. Shen..."

Several scientific researchers looked at Shen Zhe eagerly.

Shen Zhe looked up at them.

He sighed helplessly.

"Now I'm a bit busy, and there are still a few formulas I haven't finished, so I only answer one question. Will I have time to talk about the rest?"

I heard Shen Zhe agree.

Several people were happy like children in an instant.

"Good good!"

"Let's think about what questions to ask."

"Suddenly I don't know which one to ask."

"Just ask that!"

"That's a problem we've been studying for more than a year?"

Hearing what they said, Professor Sun also suddenly remembered.

"Is it a solid propellant?"

The members of the Academy of Sciences nodded.

"Common high polymers in solid propellants include polybutadiene, polyvinyl chloride, carboxyl-terminated polybutadiene, and acrylonitrile. However, the effect of blending these substances into propellants is not better, with low energy and normal temperature. The mechanical properties are similar to those at high temperatures. What do I want to add to improve the performance?"

Among them, the scientific researchers finished.

All eyes were focused on Shen Zhe.

At the same time, he looked expectantly at Shen Zhe.

Several professors also grasped the pens and notebooks in their hands.

Waiting to record at any time.

Everyone is waiting for Shen Zhe's opinion.

This problem has also troubled them for a long time.

But because no better ingredients can be added to the propellant.

So this issue has been shelved.

Now everyone's expectations are placed on Shen Zhe.

Hope Shen Zhe can give some suggestions.

These researchers are all studying rocket engines.

But many people have never developed it personally.

Many people are in a state of learning.

Although this is a research institute.

The people here are talents.

But learning is endless.

Growth is also endless.

So for many new things, they all have a passion for it.

I saw Shen Zhe meditating.

These substances are indeed not very effective when added to the propellant.

If you want to improve, you must add something else.

It can increase the energy, and the mechanical properties at room temperature and high temperature can also be improved...

Suddenly, his eyes lit up.

"Try HTPB, it's hydroxy-terminated polybutadiene."

"Um?"

All the researchers were stunned.

Even the professors who had been standing aside watching the play were stunned.

Hydroxy-terminated polybutadiene?

this......

Professor Sun looked at Shen Zhe suspiciously, "Is hydroxy-terminated polybutadiene okay? We have never heard of it."

The professors also nodded.

"We haven't heard of it either."

"Don't say I've heard of it, I haven't tried it."

They have been in the industry for many years and have studied engines and engine propellants for many years.

·········Ask for flowers·········

Add hydroxyl-terminated polybutadiene to solid propellant?

They have never heard of it.

Shen Zhe went on to say, "Hydroxy-terminated polybutadiene has good transparency, low viscosity, and good compatibility with high-energy additives and oxidants. The preparation of solid rocket propellants with it has good mechanical properties."

"The key to the preparation of hydroxybutadiene rubber is that hydroxyl groups can be introduced at both ends of the polymer molecule. This can be achieved by methods such as free radical polymerization, anionic polymerization, end group conversion and polymer degradation."

While speaking, Shen Zhe took out a blank piece of paper and picked up the pen.

Started to write "Swish".

While writing, Shen Zhe said, "The ionic polymerization uses alkali metal or alkali metal organic compounds, such as sodium naphthalene and lithium naphthalene. As an initiator, butadiene is polymerized in a polar solvent to obtain a double-active Polymer'. This kind of living polymer can go on continuously when there is no foreign impurity to terminate the reaction, but it will terminate the reaction when it encounters air, water, acid or other active hydrogen..."

...... ..... ...

Finished.

Shen Zhe's pen also stopped.

Then he handed the paper to the scientific researcher in front of him.

"This is the formula for chain initiation, chain growth and chain termination."

Shen Zhe's voice just fell.

Suddenly, a group of people rushed up.

Several professors craned their necks and looked at them.

They watched a little bit.

The brain keeps running.

Finally, it made noises from time to time.

"Oh~ that's it..."

"It turned out to be like this..."

After seeing the end, several members of the Academy of Sciences exclaimed.

"So it can be like this!"

"Wow! So it is!"

"It turns out that hydroxyl-terminated polybutadiene can be added!"

The researchers were surprised and delighted as if they had discovered the New World.

Professor Sun touched his bright forehead.

"Why didn't I expect it! You can try adding hydroxyl-terminated polybutadiene!"

Professor Feng nodded slowly, as if he was still thinking, "Hydroxy-terminated polybutadiene does seem to be quite suitable, but it still depends on the results of the experiment."

Professor Sun nodded, looked at several researchers, and then said, "You guys come out, I have something to tell you."

"what?"

They were taken aback.

What is Professor Sun doing mysteriously?

Why not say it here?

Aren’t they all here? Son.

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