Liu Feng is not clear about the rhythm that was brought up on the Internet, and even if he knew, he would probably laugh it off.

Because his research project has now entered a critical stage, even if the sky falls, it will not pry his heart to death in the laboratory.

There are two main difficulties in seawater desalination reverse osmosis membrane materials, one is the filtration of impurity particles, and the other is the price problem.

For the filtration of impurity particles, this problem is best solved.

Whether it is the previous polyamide composite materials or various graphene-like materials, it can solve this problem very well.

The particle size of water molecules is about 0.4 nanometers, and the impurities such as inorganic salts, heavy metal ions, organic matter, colloids, bacteria, viruses and other impurities in seawater are basically much larger than the particle size of water molecules, and the water molecules are flexible, even if they are 0.1 nanometer holes, they are often expanded enough to pass through after being impregnated; therefore, the channel structure of general reverse osmosis membrane materials is controlled between 0.1 nanometers and 0.5 nanometers; and materials that meet these conditions, Liu Feng has now found at least hundreds of kinds.

After all, there is a basic theory, plus there are graphene-like materials to be used as a reference, with the help of extraordinary energy, Liu Feng can control the microscopic particle combination reaction, and finally synthesize new materials suitable for seawater desalination.

However, what made Liu Feng feel extremely sorry was that at least 99.9% of the new materials in it, once out of his ability control, would either fall apart instantly, or then react with other substances, and their physical and chemical properties were extremely unstable.

Fortunately, there are always several new materials whose properties are relatively stable, and the operability of the next is relatively strong. Of course, even if it has a certain degree of operability, it also requires Liu Feng to seriously deduce it himself, and then repeat the experimental verification, and even hit the luck like buying a lottery ticket.

After all, the synthesis of a new material to its practical application is not a concept at all.

The issue of price has always been a big mountain on the road to the large-scale application of new materials!

In the spirit of Yugong moving mountains, Liu Feng has verified more than a dozen new materials in the laboratory, but he has not yet found the one that satisfies him.

At this moment, he is working on a new material, which is his latest discovery, number 127.

If you have to give it a name, it can be called a porous carbon fiber microcrystalline graphite oxide composite.

As can be seen from the name, this material has a porous structure, which not only has the characteristics of high axial strength modulus, low density, high specific performance, ultra-high temperature resistance, insoluble and non-swelling in organic solvents, acids and alkalis, but also has the high adsorption properties of microcrystalline graphite oxide, and the adsorption and filtration ability of various impurity particles in seawater is very prominent.

The reason why Liu Feng was discovered was also due to a chance opportunity, when he was tinkering with various carbon fiber materials and graphene, he had an accidental inspiration: if the properties of the two can be retained at the same time and a new material can be synthesized, can this new material still be used for seawater desalination?

As a result, new materials appeared, and the results of the verification were quite encouraging:

This new material is structurally stable at a temperature of -35°C~180°C, and resistant to acids, alkalis, and organic solvents, and has high strength, compared with traditional polyamide composites, its Young's modulus is more than 3 times that of the latter, of course, this material also has a porous structure, and the pore size is about 0.3 nanometers - it is simply a natural reverse osmosis membrane material!

Liu Feng, who was ecstatic, began to study the problem of synthesis through the laboratory while analyzing and recording the tolerance data of this material in various strong stimulus environments.

Generally speaking, there are many factors that make reverse osmosis membranes expensive, but they boil down to raw materials, energy, and labor.

This composite material can be synthesized by cheap graphite oxide as the starting material, so in terms of raw material cost, it is much cheaper than other materials, and the application prospect is of course very broad!

As for the problem of energy and labor costs, in Liu Feng's view, it is a matter of the benevolent and the wise, as long as the production process is constantly adjusted and optimized, the energy and labor costs can be completely controlled.

Therefore, the problem that Liu Feng is encountering now mainly lies in the optimization of the production process.

The production method of this porous carbon fiber microcrystalline graphite oxide composite material has been roughly deduced.

The first step is to put the graphite into the water for ultrasonic dispersion to form a graphite oxide solution with a uniform dispersion and a mass concentration of 0.25g/L~1g/L, and then add a ruthenium solution with a mass concentration of 8% dropwise to the graphite oxide solution to form a solution with a mass concentration of 0.25g/L~2g/L.

The prepared mixture is then placed at 1150 °C, infiltrated with ruthenium, and then cooled to about 850 °C, a large number of previously absorbed carbon atoms will float to the surface of ruthenium, forming a single layer of carbon fiber microcrystalline graphite oxide material in the shape of a lens;

The result of the deduction cannot be regarded as the final result, after all, experiment is the only criterion for testing the truth. But there are often too many uncertainties in experiments, and a single inadvertent mistake can cause immeasurable consequences.

Therefore, Liu Feng had to be careful and careful to try, the slightest noise from the outside world might affect his control of the experiment, so he simply moved into the laboratory and didn't come out all day.

A few days later, the results of the experiment came out, and the unkempt Liu Feng was both happy and worried.

The good news is that his theoretical derivation is basically correct, and this mode of production is indeed feasible!

Concerns arise that the flakes of material produced by this method tend to be of uneven thickness, and the adhesion between the material and the substrate occasionally affects the porous structure of the carbon layer. Even laboratory production has these problems, and when it is put into pilot scale production, I don't know how many problems there are!

Liu Feng was not satisfied with this.

But what's the problem?

He frowned and pondered.

……

Liu Feng's project research has progressed to the final stage of production process optimization and control, and it is basically only a matter of time before it is completely successful. And just when he was experimenting with sleep and food, the outside world's discussion and questioning of him had reached its peak, and even had a certain impact on the decision-making above.

On the eve of the National Day, the Huaguo Science and Technology Association is holding a meeting here that is related to the development prospects of the entire desalination industry.

The main content of the meeting was to discuss the establishment of a reverse osmosis method material public relations research group, presided over by Zhang Qin, the leader of the SHU of the Association for Science and Technology, and more than 20 people attended by the president, executive deputy secretary, executive vice president and other relevant leaders of the Association for Science and Technology, and even a secretary of the National Strategic Development Committee was present.

"Secretary Geng, the meeting can begin, what do you think?"

Zhang Qin consulted Secretary Geng's opinion.

The so-called National Strategic Development Committee is actually the name of the think tank behind the national leaders, which directly affects the decision-making of the national leaders; therefore, even if these people's positions are not high, and their grades are not even as good as those of his secretary, Zhang Qin, a seven-rank official in front of the prime minister, does not dare to snub this seemingly inconspicuous secretary Geng at all.

"ZHANG SHU IS POLITE, THEN LET'S START!" THIS SECRETARY GENG DIDN'T HAVE ANY ARROGANCE, AND NODDED POLITELY, AFTER ALL, THE PURPOSE OF HIS COMING HERE WAS JUST TO ACT AS A WITNESS.

The meeting officially began.

“…… First of all, do you still have any questions about the route of reverse osmosis membrane materials?"

Zhang Qin spoke a few words, and then directly asked questions.

The entire conference room shook their heads almost unanimously, this was not the focus of today's conflict.

At the desalination conference, Liu Feng's research route for reverse osmosis membrane materials has basically been widely recognized, even experts and professors who are skeptical of Liu Feng have no doubt about the route he proposed, or simply say that they can't doubt it, after all, you can put forward a feasible route!

"Well, since everyone has no problem, let's move on to the next topic! Who is responsible for the establishment of a public relations research group for reverse osmosis membrane materials? Everyone expresses their opinions. ”

As soon as Zhang Qin's words fell, the atmosphere in the conference room entered a tense state in an instant, and the participants looked at me, I looked at you, and they were about to express their opinions.

"I'll interject here. According to the assessment of our National Strategic Development Committee, the topic of seawater desalination is definitely the most influential topic in the next 30 years.

Therefore, the state decided to invest at least 2 billion yuan for the construction of seawater desalination plants this year, of which, 300 million funds were invested as scientific research funds for the project, which will increase year by year in the future; and reverse osmosis membrane materials are the top priority of seawater desalination, at least 60% of the scientific research funds can be allocated. ”

Secretary Geng interjected solemnly at this time.

The atmosphere in the conference room became even more tense.