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Industry info Wiki Q&A
Q pp uses
VerneWalsh
TeresaAcheson Release Time: June 18, 2024, 8:39 AM
Propylene fabric, commonly referred to as polypropylene fabric, is a synthetic material derived from the polymerization of propylene gas. A notable feature of this fabric is its lightweight nature, making it incredibly comfortable for various applications, including sportswear, reusable bags, and certain types of outdoor furniture. It’s highly resistant to abrasion, does not absorb water which allows for quick drying, and is resistant to most acids and alkalies, making it very durable. Additionally, propylene fabric is recyclable, making it a more environmentally friendly option compared to other synthetic fibers. However, its resistance to dyeing makes color choices somewhat limited, which could be a consideration for fashion or design applications.
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Q is high density polyethylene flammable
JuliePalmer
TeresaAcheson Release Time: May 29, 2024, 8:46 AM
High Density Polyethylene (HDPE) is classified as a combustible material rather than highly flammable. It has a relatively high ignition temperature around 349°C (660°F), but once ignited, it can continue to burn. HDPE doesn’t easily ignite in normal environmental conditions due to its high ignition point, making it reasonably safe for everyday applications. However, in the presence of a significant heat source, it can catch fire and release dense smoke along with potentially toxic gases, depending on the combustion conditions. Therefore, caution should be exercised when using HDPE near open flames or high-temperature environments. Its combustion properties necessitate careful management and adherence to safety standards, especially in industrial settings to mitigate fire risks.
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Q what colors does pvc come in
AmyCatharine
TeresaAcheson Release Time: April 28, 2024, 5:36 AM
Polyvinyl Chloride (PVC) glue, also known as PVC cement, is designed to create a strong bond by chemically fusing PVC pipes and fittings. Once cured, it’s resistant to water and most chemicals, making it challenging to dissolve. However, solvents such as acetone, MEK (methyl ethyl ketone), or specific commercial products designed to break down adhesives can partially dissolve or soften PVC glue, facilitating its removal. It’s important to apply these solvents in a well-ventilated area and follow safety precautions due to their potent and hazardous nature. Mechanical removal (sanding, cutting) might be necessary for complete removal.
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Q difference between regular and synthetic oil
IdaClapham
TeresaAcheson Release Time: April 24, 2024, 7:42 AM
The fundamental difference between regular oil changes and synthetic lies in their base oil composition. Regular, also known as conventional, oil is refined from crude petroleum, making it less pure and more prone to degradation under heat and load. Its primary advantage is cost, being significantly cheaper than synthetic options. Synthetic oil, on the other hand, is chemically engineered to provide superior performance. It offers better viscosity at extreme temperatures, reduced engine wear, and can extend the interval between oil changes. Synthetic oil’s enhanced lubrication properties also contribute to improved fuel efficiency and engine longevity. However, these benefits come at a higher price point compared to conventional oil. For vehicles subjected to harsh conditions, frequent towing, or high-performance use, synthetic oil is often recommended for its ability to maintain protective qualities over a longer period. For older cars or those used in lighter duty, conventional...
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Q can you use pvc cement without primer
NormanMartin
TeresaAcheson Release Time: April 22, 2024, 12:08 PM
Using PVC pipe to vent a dryer is not recommended or considered safe according to most building codes and dryer manufacturers’ guidelines. Dryers emit hot, moist air and lint, which can cause PVC pipes to soften, warp, and potentially release harmful fumes due to the heat. Additionally, static electricity can build up in PVC piping, increasing the risk of igniting lint buildup, leading to a fire hazard. It’s essential to use materials specified by building codes and manufacturers, such as smooth metal ducting, which is designed to withstand the temperatures and conditions of dryer exhaust.
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