I said that I am currently actively preparing for the graphene technology conference, the purpose of nothing more than officially declared graphene industrialization started, with other industry is different, we will not emphasize the cost of graphene has been lower than RMB 0.2, not to mention how much graphene products have been completed in Yiyang, this time in addition to display from raw materials to process to the secondary processing of the production line, but also the introduction of graphene industry funds and the "China Graphene-valley" platform of China's graphene flagship program.

In front of my heart is surging, in addition to the successful operation of the city, can be held as scheduled graphene application technology will be outside. In the conductive plastic on the kneading technology breakthrough, in one fell swoop the chip resistance from 10⁴ ohm/□ to 10⁰ ohm/□, used to do anti-mask wire outside, that is: the real conductive polymer has been done with the metal and so on conductivity. Unique again and again reported that the powder coating from the second batch of 8.3W / mK and upgrade to 33.3W / mK.

Talk about the mechanism of heat, we talk about the calculation of this way. First, we measured the specific heat capacity of the graphene / epoxy resin by DSC to 1146J / kgK @25℃,

and obtained the following three data for spraying on the aluminum plate with the Netzsch Laser Thermal Conductivity Analyzer.

But in order to increase the gap with competitors, I know in 2015 to the "whole plant output" mode, that is, the so-called turnkey solution. In fact, I was just want to do the first time in China Merck, not just the material, even the equipment and firmware should be a grasp. To this end, I decided to work with the industry's factory development, and then work with them to develop the second processing of graphene products.

This motive is also my motivation to start doing gravel in 2013. I started to do graphene is also looking for the middle of Taiwan's graphen scholars, the results are not responsible for equipment and raw materials, light writing recipe table will be 1 million yuan, I think how could earn back, simply do it yourself. Luck good for two months to make a single layer of graphene, just Shanghai has a home heat paste to provide the silicone oil to me, I put this material to join the thermal conductivity, even no side of the multi-layer graphene added to the performance of silicon oil , This time I was Mongolia! But I decided to knock out his head, as long as the other side in the terminal than I am good, I was to get the upper reaches of different graphene preparation process, so now there are at least seven ways.

A group for the E-36-41-G03 surface resistance of 20Ω / CM OD5.0, the structure: conductor + PE foam insulation + graphene conductive masterbatch (in) + PVC ground + PVC outside. To the processing technology, the group of particles flow coefficient of 22.8, the effect of good extrusion surface smooth ductility is good, graphene layer and the core layer with the material is not easy to separate the separation of PE material. Although the core line is hard, but it is estimated that can still easily through the swing test of the international standard, it can be speculated that graphene after the increase in the hardness of the masterbatch toughness, post-forming process easy. In the range of 100kHZ-8.5GHZ, the lowest point fades in 48dB / 5GHZ, the available frequency band is very large, the average attenuation is about 20-30dB, the impedance value is 123.3Ω. This group of wire composite performance in the four lines ranked second, according to the performance of this group of formula to determine such as cost-effective enough, can be used as a quantitative reference direction.

B group for the E36-41-G02 surface resistance of 21Ω / CM OD5.0, the structure: conductor + PE foam insulation + graphene conductive masterbatch (in) + PVC ground + PVC outside. To the processing technology, the group of particles flow coefficient of 18.5, the extrusion effect is good but the surface roughness, ductility in general, graphene layer and the core layer with the PE material is not easy to separate. Core than G03 hard, but it is estimated that can still easily through the swing test of the international standard, can be speculated that the proportion of graphene and masterbatch ratio is different from the latter part of the molding process easy. In the range of 100kHZ-8.5GHZ, the lowest point fades in the range of 50dB / 6-7GHZ, the figure can be used in the range of 30-40dB, and the impedance value is about 30-40dB. no data. The overall performance of this group of wire in the four groups ranked fourth, according to the performance of this group of formula is not suitable as a production reference.

D group for the E-36-40% surface resistance of 7.36Ω / CM OD5.0, the structure is: conductor + PE foam insulation + graphene conductive masterbatch (in) + PVC ground + PVC outside. To the processing technology, the group of particles flow coefficient (0.53), the extrusion effect is good but the surface is smooth, high ductility can be thinner. Graphene layer and the core layer with the same material is not easy to separate. Core than G03 hard, but it is estimated that can still easily through the swing test of international standards, can be speculated that the proportion of graphene and masterbatch ratio design is completely different, post-forming process easy. In the range of 100kHZ-8.5GHZ, the lowest point fades in 40dB / 1-2GHZ, the graphics ups and downs are smooth, the available frequency band is extremely large, the average attenuation is about 20-25dB, the impedance value At 119.9Ω. This group of wire comprehensive performance in the four groups ranked first in the line, according to the performance of this formula can be used as high-end products or add products for the production of reference direction.

Due to the different design of the C-like sample structure, this is discussed separately. C group is E36-41-G03 + E-36-40%, the surface resistance is 20Ω / CM 7.36Ω / CM OD5.5, the structure is: conductor + (E36-41-G03) conductive rubber + PE foam insulation Layer + graphene conductive masterbatch (E-36-40%) was + PVC ground + PVC outside. This group of wire design is discussed with the factory after the addition, the main purpose is to see if it can improve the attenuation of the conductor. This idea stems from the continuation of the performance of the conductor with the alloy cable, the main function is to increase the transmission distance of wire and cable. From the current data point of view can be initially proved to use conductive plastic coating on the copper conductor, the use of electrical signal skin effect and conductive rubber coating to reduce the original conductor and insulating particles produced between the capacitance and inductance effect , It is possible to reduce the attenuation due to the length, and thus increase the signal transmission distance may be a feasible solution. Unfortunately, this test line is only 1 meter, the future will be in Dongguan factory to do this line of further testing.

According to the processing technology, the group of particles flow coefficient (0.53 and 22.8), the extrusion effect is good and smooth surface. E-36-40% ductility high pullable thin conductor layer fit, graphene layer and the core layer with the same material is not easy to separate the separation of the core, the core than the G03 hard, it is estimated that can still easily through the swing test of international standards, After the forming process easy. In the range of 100kHZ-8.5GHZ, the figure is smooth and the available frequency band is extremely large, the average attenuation is about 10dB, and the impedance value is 129.3Ω. It can be seen that the wire performance is very good. Performance Judgment This set of formulations can be used as a reference direction for future wire specification development.

What does this mean? For different customer needs to configure a different combination of materials, to meet the different combinations of materials must be matched with different combinations of graphene materials, and then through the mechanism to demonstrate that the sample at least three different levels of reduced attenuation of the product line. Why should i say that? Material with the processing technology is different, if you do not have these good materials, even if you imitate my routine can not do, not to mention, I have been leading at least three years of accumulation, coupled with the cost of the advantage, or else, I want to guide People on the product development copy short-term mentality, or I am looking for the same way to join the ranks of Zhiyang, which I still see very far.