This is a carbon-fiber reinforced ABS with surface resistivity around 10³ Ω. Besides improving stiffness/strength, we’ve been testing it in several different colors, which is useful for applications where conventional black conductive compounds aren’t ideal.
Conductive PC for semiconductor carrier tape may look like a straightforward extrusion material, but in practice the processing is quite sensitive.
One of the main challenges is making the conductive phase disperse evenly. If the conductive filler is not distributed uniformly, the resistance can fluctuate a lot across different areas of the extruded sheet. At the same time, if the filler level is too high, or if the dispersion is poor, the surface can easily become rough, dull, or unstable during extrusion.
So the real difficulty is not just hitting a resistance range. It is how to balance conductivity, dispersion, melt flow, and surface quality at the same time.
For this carrier tape, the grade used was DGK-PC DD5-7JC, with a surface resistance around 10⁵–10⁷ Ω.
From the processing side, the key is to provide enough shear to disperse the conductive filler well, while avoiding over-shearing or degrading the PC matrix. The formulation also needs reasonably stable melt flow so the extruded sheet can keep a smooth and uniform surface.
The final carrier tape showed relatively uniform conductivity together with a smooth and glossy surface, which is also important for the later forming and winding steps.
For conductive extrusion materials, I think the balance between electrical uniformity and surface quality is often more difficult than simply lowering the resistance.
When developing a plastic product, many people start by looking for a factory, mold maker, or injection molding supplier. However, material selection can have a major impact on whether the entire project goes smoothly.
Different plastic materials can create completely different challenges during mold design, injection molding, and mass production, such as warpage, shrinkage, poor surface finish, insufficient strength, or failure to achieve the required performance.
In many cases, product development problems are not because the factory cannot manufacture the part, but because the material was not carefully considered at the beginning. Choosing a plastic material is not only about checking the parameters on a datasheet — it also requires considering the product structure, processing method, and actual application environment.
Through long-term cooperation with mold makers and injection molding factories, we have encountered many similar situations. As a modified plastics manufacturer, we are happy to share practical experiences from real production and help reduce unnecessary trial and error.
If you are looking for plastic material suppliers in China, or have questions about material selection and processing, feel free to discuss with me. I would be glad to share suggestions based on real manufacturing experience.
If you are looking to develop a custom plastic product, such as toys, automotive parts, or industrial components, many people’s first instinct is to search for suppliers who are already selling similar products.
However, many of these suppliers may not actually be manufacturers. Some are trading companies that integrate resources from different factories, which means they may not own their own molds, injection molding machines, or production capabilities.
So how can you find a real manufacturer? A better approach is to start from the material side. Find a professional plastic material supplier based on the performance requirements of your product. These material suppliers usually have long-term cooperation with mold makers and injection molding factories, and they can often help you connect with manufacturers that have real production capabilities.
Of course, you should still verify the factory’s equipment, experience, and quality control system before cooperation. But from a supply chain perspective, finding manufacturers through the material side is often closer to the real production source than simply searching for finished products.
This conductive PP has a surface resistivity of only 10²–10³ Ω. It can light up an LED bulb under a 3V voltage.
In Chinese cooking, there is a common technique called “gōu qiàn” (starch thickening). It involves mixing starch, such as potato starch or corn starch, with water to make a slurry, then adding a small amount during the final stage of cooking.
This helps thicken the sauce, makes it coat the ingredients better, and gives the dish a smoother texture and better appearance.
Many classic Chinese dishes use this technique, such as Sweet and Sour Pork, Kung Pao Chicken, and Mapo Tofu.
For those who enjoy Chinese food, what other dishes do you think work well with this technique?
These are the common forms of carbon fiber used in the plastic compounding industry. They are called chopped carbon fiber. In fact, each chopped strand is made up of countless individual carbon fiber filaments bundled together.
We often make homemade dog food for him (like carrots, meat, rice, and whole grains), and sometimes we give him kibble. But his favorite is still treats. Are we spoiling him too much?
Got him for free, but he cost me $20k after biting someone.
Mao Xue Wang is a classic Sichuan dish made with duck blood, beef tripe, various offal, vegetables, and a spicy chili broth. If you enjoy spicy food, it’s definitely worth trying.
We are currently validating a transparent antistatic ABS material, DGK-ABS KJD890TM. The current performance is:
Surface resistivity: 10⁸–10⁹ Ω (antistatic range)
Transparency: ≥85%
However, during injection molding of a thick-walled hollow part, we encountered some issues. The transparency decreases significantly compared with thin-wall samples, and visible bubbles appear inside the part.
The second image shows the material molded into a thin-wall sample, where the transparency performance is much better.
The main questions are:
1.For thick-wall transparent ABS injection molding, what process adjustments would you recommend to maintain transparency?
2.How can we reduce or eliminate internal bubbles caused by gas trapping or material shrinkage?
3.Should we adjust parameters such as melt temperature, injection speed, holding pressure, mold temperature, or drying conditions?
4.Are there any special considerations when processing transparent ABS with antistatic additives?
The TDS of DGK-ABS KJD890TM has already been released, and we would appreciate any advice from engineers who have experience with transparent ABS injection molding or antistatic polymer systems.
Do I need to wait for 7 days, 30 days, or reach a certain karma level before I can comment normally in communities?