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Industry info Wiki Q&A
Q is synthetic oil better than regular oil
TheraCowper
UlaFrancis Release Time: June 24, 2024, 12:29 PM
Polyester, a type of plastic derived from petroleum, does not inherently contain “forever chemicals” like PFAS (Per- and Polyfluoroalkyl Substances) which are known for their persistence in the environment and in living organisms. However, polyester fabric treatments or finishes, such as those to make garments water-resistant or non-stick, may involve the use of PFAS or similar substances. While polyester itself is recyclable and widely used in textiles, the environmental concern with polyester is more about microplastic pollution and energy-intensive production rather than “forever chemicals.” It’s essential for consumers seeking eco-friendly options to consider not just the material but also the chemicals used in its treatment and processing.
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Q examples of blow molding
QuintinaAlcott
UlaFrancis Release Time: June 22, 2024, 9:15 AM
Price trend According to the monitoring data of toodudu, the price of caustic soda was temporarily stable this week. At the beginning of the week, the average market price in Shandong was 1,104 RMB/ton, and at the weekend, the average market price in Shandong was 1,108 RMB/ton. The price rose 0.36%, and 41.15% higher than the same period last year.On December 11, the caustic soda commodity index was 159.42, unchanged from the previous day, down 39.95% from the highest point of 265.47 points (2021-10-27) in the cycle, and up 144.85% from the lowest point of 65.11 points on October 9, 2020. (Note: Period refers to 2011-09-01 to now)Analysis reviewAccording to the survey data of toodudu, the domestic caustic soda price was temporarily stable this week. The average market price in Shandong was about 1,070-1,180 RMB/ton. The factory quotation of 32% liquid caustic soda mainstream in Hebei was about 1,100-1,200 RMB/ton. The price of caustic soda in the market was in a stalemate, and the mark...
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Q how long does cast iron pipe last
MarjorieCharles
UlaFrancis Release Time: May 15, 2024, 11:18 PM
The salary of a pipe welder can vary based on several factors including experience, location, certifications, and whether they are part of a union. On average, pipe welders in the United States make between $40,000 to $70,000 annually, with experienced workers in high-demand locations or with specialized certificates potentially earning more. Unionized welders often have higher wages and better benefits due to collective bargaining agreements. Additionally, those willing to work in remote locations or under challenging conditions (such as underwater welding) may command premium pay. It is also notable that continuous professional development and mastering advanced welding techniques can lead to higher earnings in this field.
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Q how to prevent pigment bleed in water
VenusPiers
UlaFrancis Release Time: April 24, 2024, 11:15 AM
Preventing pigment bleed in water, especially in artistic mediums like watercolor painting, involves a few key strategies. First, using high-quality, water-soluble pigments ensures they’re designed to be stable in water. Secondly, the choice of paper or fabric matters; papers with a good sizing (a treatment that affects absorbency) help control water absorption and pigment spread. Pre-wetting the paper can also reduce bleeding by allowing colors to flow more smoothly. Additionally, controlling the amount of water used with the pigment is crucial – too much water can cause colors to spread beyond desired areas. Techniques like ‘dry on dry’ (applying wet paint to dry paper) or ‘wet on dry’ can offer more control compared to ‘wet on wet’ methods. For fabric, using a fixative or mordant before painting can help secure the pigment. Lastly, practicing and familiarizing yourself with your materials’ behavior in water is invaluable for managing bleed effectively.
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Q is polyester and spandex warm
BertramCecillia
UlaFrancis Release Time: April 23, 2024, 3:11 AM
Polyester and viscose, two popular fibers in fabric manufacturing, have distinct characteristics concerning stretchiness. Polyester, a synthetic fiber, is inherently stretch-resistant unless it’s woven into a specific stretchy fabric or blended with elastic fibers like elastane. Viscose, a semi-synthetic fiber made from cellulose, naturally offers a slight give due to its breathable, soft nature but isn’t truly stretchy. Essentially, the stretchiness of a fabric depends more on the fabric’s weave or knit and whether stretchy fibers are integrated, rather than solely on whether the material is polyester or viscose.
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Q can you bend pvc pipe
GregBryce
UlaFrancis Release Time: April 22, 2024, 12:01 PM
Yes, you can bend PVC (Polyvinyl Chloride) pipes, a common practice in plumbing, construction, and electrical conduit installations. The process requires applying heat to make the PVC flexible enough to bend to the desired angle without causing kinks or cracks. A popular method involves using a heat gun or a PVC pipe bender, which applies even heat around the pipe, making it pliable. It’s crucial to heat the PVC gradually and evenly to prevent damage. Once bent, the PVC needs to cool down to retain its new shape. Precautionary measures, such as wearing heat-resistant gloves and ensuring proper ventilation, should be taken during the heating process.
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Q can i mix pigment with polygel
BblytheLindsay
UlaFrancis Release Time: April 16, 2024, 12:42 PM
Yes, you can mix pigment with polygel to customize its color. Polygel, a versatile nail enhancement, combines the best qualities of acrylics and hard gels for nail extensions or overlays. When adding pigment, ensure it’s a small amount to maintain the polygel’s texture and curing properties. Use professional-grade or nail-specific pigments to avoid compromising the polygel’s strength and flexibility. Mix thoroughly to ensure an even color distribution. Always conduct a patch test before applying to the entire nail to assess the color and avoid potential allergic reactions.
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Q difference between pigment and dye
Eden
UlaFrancis Release Time: April 11, 2024, 2:36 AM
Pigments and dyes are both used to color materials but differ fundamentally in their composition and application. Pigments are insoluble substances that need to be suspended in a binder to adhere to a surface, making them suitable for paint, ink, and plastics. They are known for their stability and resistance to fading over time. Dyes, on the other hand, are soluble and have an affinity for the material they color, penetrating the substrate directly. This makes dyes ideal for textiles, leather, and food coloring, offering vibrant colors but sometimes lacking the durability and lightfastness of pigments. While pigments boast robustness and opacity, dyes provide a wider range of colors and the ability to achieve more uniform coverage.
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