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TammySidney
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Industry info
Wiki
Q&A
TammySidney
Release Time:2024-06-03
Downstream Demand Increases Slowly PE Market Continues to Decline
1.Price Trend This week (8.26-8.30) polyethylene showed a continued decline, in which the average price of LDPE 2426H in East China monitored by toodudu was about RMB 8225/ton; the average price of HDPE 5000S was about RMB 8316.67/ton; and the average price of LLDPE 7042 was about RMB 7333.33/ton. As of August 30, the price of HDPE in East China showed a steady trend this week, and the prices of LDPE and LLDPE showed a continuous downward trend this week. Linear futures continued to decline this week, falling sharply on the 29th, with 01 positions hitting a record high, closing at 1011,980,000 hands, and prices hit a new low in the past decade, which significantly depressed the mindset of the operators. At the end of the month, the market cleared warehouses actively and digested stocks. Businessmen had a pessimistic mentality. Although Petrochemical had a strong intention to bid up at the end of the month, part of the supply chain was tighter, and the mindset of the traders was pes...
Detail >
TammySidney
Release Time:2024-06-03
Industry consortium collaborates on circular cosmetic packaging applications
In a first and unique collaboration for the personal care industry, Clariant, Siegwerk, Borealis, and Beiersdorf are combining expertise to tackle the challenge of creating recyclable consumer packaging, based on 100% retrieved plastic packaging waste, for cosmetics applications. The pioneering initiative, named Design4Circularity, is providing innovations and insights for the different design aspects to encourage others to also follow design for circularity principles. The cross-industry collaboration is targeting the achievement of truly circular packaging by incorporating full life cycle thinking in each development step, to create a new standard for the industry. Circular packaging supports reduced plastic waste, less use of new/virgin plastic material, and reduced climate impact, which are critical challenges facing our planet. Richard Haldimann, chief technology and sustainability officer, Clariant, says, “This collaboration was possible because all participant...
Detail >
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Q
is hdpe safe for babies
JeremyGunter
TammySidney
Release Time:
July 22, 2024, 9:58 AM
Premium-grade 0W-20 detergent oil with an API certification is a high-quality lubricant designed for specific engine types. The “0W-20” indicates the viscosity level of the oil, suitable for use in colder temperatures (0W) but thin enough to work optimally at engine operating temperatures (20). The detergent aspect signifies that the oil contains additives to keep engines clean by preventing deposit build-up and removing contaminants. These oils are engineered to protect against wear, corrosion, and the build-up of sludge and varnish. API certification (American Petroleum Institute) ensures the oil meets certain standards and specifications set by the automotive industry, indicating its quality and suitability for engines requiring this type of oil. It is especially recommended for modern vehicles designed for fuel efficiency and lower emissions. Using the correct grade and API-certified oil is crucial for maintaining engine health and performance.
0
Q
how to melt hdpe at home
PenelopeClara
TammySidney
Release Time:
July 13, 2024, 8:48 PM
Applying epoxy to a live edge requires meticulous preparation and technique. Start by sanding the wood to remove any dirt or imperfections. Seal the live edge with a thin coat of epoxy to prevent air bubbles. Once sealed, create a barrier around the edge using tape or a custom-built form to contain the epoxy. Mix the epoxy resin and hardener according to the manufacturer’s instructions, then slowly pour it over the live edge, ensuring even coverage. Use a heat gun to remove any bubbles that form. Allow the epoxy to cure as per the product’s guidelines before removing the barriers and sanding the surface for a smooth finish. Applying epoxy to live edges not only enhances the wood’s natural beauty but also protects and strengthens it.
0
Q
pet versus hdpe
TammySidney
GlennLaurie
Release Time:
June 19, 2024, 2:40 PM
HDPE, or High-Density Polyethylene, is a versatile and durable thermoplastic made from petroleum. Renowned for its high strength-to-density ratio, it is used in a plethora of applications from plastic bottles and food containers to plumbing pipes and industrial packaging. Its chemical resistance to many solvents and its impermeability to moisture make it an ideal material for use in harsh environments. Furthermore, HDPE is recognized for its recyclability, playing a significant role in environmental sustainability efforts. In terms of manufacturing, it is produced through the polymerization of ethylene, a process that yields a plastic known for its rigidity and toughness. HDPE’s widespread use across various industries is testament to its adaptability and reliability as a material.
0
Q
fresnel lenses for pir sensors natural white hdpe
TammySidney
BoothParker
Release Time:
May 13, 2024, 9:54 PM
Getting cured epoxy out of an HDPE mold can be a tricky process, but it’s often doable with the right techniques. HDPE is known for its non-stick properties, which can work to your advantage. Start by gently flexing or tapping the mold to see if the epoxy releases on its own. If that doesn’t work, try putting the mold in the freezer for a few hours. The cold should cause the epoxy to contract slightly, making it easier to pop out. If you’re still struggling, applying a small amount of heat around the mold, not directly on it, might help the epoxy to expand and loosen. Always ensure to work carefully to avoid damaging both the epoxy piece and the HDPE mold. In some cases, using a release agent before pouring the epoxy can make future removals easier.
0
Q
injection molding press rates
TammySidney
SharonWilcox
Release Time:
May 12, 2024, 7:42 AM
The tonnage in injection molding press refers to the clamping force that the machine can exert to keep the mold closed during the injection process. Calculating the correct tonnage is crucial for quality parts and to avoid damage to the mold. Generally, the calculation is based on the projected area of the custom part being molded (including runners and gates) and the pressure required to inject the plastic material into the mold (typically measured in pounds per square inch, psi). The formula is: Tonnage = (Projected Area x Injection Pressure) / 2000. The projected area is in square inches and the injection pressure is in psi. It’s critical to consider factors like material selection, as different plastics have varying flow characteristics and may require different pressures. Also, more complex shapes may require higher tonnage to force material into intricate details. It’s always advisable to add a safety factor, usually around 10%, to ensure the machine can handle the job with...
0
Q
refrigerant pipe sizing chart
TammySidney
DylanWhit
Release Time:
May 10, 2024, 8:21 AM
An ABS pipe size chart is essential for understanding the dimensions and specifications for Acrylonitrile Butadiene Styrene (ABS) piping, widely used for drainage, waste, and vent systems due to its durability, resistivity to low temperatures, and ease of installation. The chart details the outer diameter (OD), inner diameter (ID), and wall thickness for various pipe sizes. ABS pipes commonly range from 1 1/2 inches to 4 inches in residential applications, with larger sizes available for commercial or specialized uses. The chart is crucial for ensuring compatibility with existing systems and adhering to local building codes. It’s important to consult a current ABS pipe size chart during planning and installation to ensure accurate sizing and compliance.
0
Q
how to connect hdpe pipe to steel pipe
TammySidney
JuliusMicah
Release Time:
May 7, 2024, 1:31 PM
Connecting HDPE pipe to steel pipe requires a transition fitting that ensures a leak-proof and durable connection. Firstly, align the pipes, ensuring the end of the steel pipe is prepared (cleaned, deburred). Use a flanged adapter for the steel pipe, bolting it tightly in place. For the HDPE side, a flange adapter specific to HDPE’s size and SDR rating is necessary. Heat fusion or an electrofusion coupling can secure the HDPE adapter. Finally, a gasket is placed between the two flanges, and bolts are tightened across the flanges to achieve a secure connection. This method accommodates thermal and mechanical stresses while ensuring a fluid-tight seal between the dissimilar materials.
0
Q
hdpe film properties
TammySidney
IrisFitzGerald
Release Time:
May 7, 2024, 6:17 AM
High-Density Polyethylene (HDPE) film is recognized for its strength, durability, and resistance to chemicals. It boasts a high strength-to-density ratio, making it a popular choice for packaging with a need for sturdy material that can withstand harsh conditions. HDPE film is also moisture resistant, which is crucial for products that require waterproof packaging. Furthermore, it has excellent tensile strength, ensuring that it doesn’t easily tear or puncture. One of the most valued properties of HDPE film is its recyclability, aligning with growing environmental sustainability demands. It is used in various applications, from grocery bags and food packaging to agricultural films. However, its rigidity compared to other films like LDPE can be a limitation for certain applications requiring more flexibility. Overall, HDPE film’s unique qualities make it integral in industries looking for heavy-duty, reliable packaging solutions.
0
Q
heat capacity of hdpe
TammySidney
RoderickAdam
Release Time:
May 7, 2024, 3:23 AM
HDPE. or High Density Polyethylene. typically has a heat capacity ranging from 1.67 to 2.30 J/g C. In simpler terms. this is the amount of energy needed to increase its temperature by one degree Celsius. The specific formulation and processing conditions may cause slight variations in heat capacity for HDPE. With a relatively high heat capacity compared to other plastics. HDPE is highly sought after for its exceptional insulation and resistance to temperature changes. This makes it a popular choice for uses like hot and cold fluid piping and outdoor furniture. It’s crucial for engineers and designers to understand the heat capacity of HDPE in order to anticipate how it will behave under various environmental conditions and applications.
0
Q
how to make hdpe
TammySidney
ZaraKellogg
Release Time:
May 6, 2024, 5:59 PM
High-Density Polyethylene (HDPE) is manufactured through a process known as polymerization, specifically using the Ziegler-Natta catalyst or the Phillips Process. Firstly, ethylene gas, a petroleum byproduct, is subjected to significant pressure and temperatures in the presence of catalysts. In the Ziegler-Natta method, the catalysts create polymer chains with little to no branching, resulting in a dense material. The Phillips Process, on the other hand, employs a chromium oxide-based catalyst. Once polymerized, the material is cooled, cut into granules, and can be molded or extruded into various products. The final properties of HDPE, such as its strength and melting point, can be adjusted by altering the polymerization conditions, making it versatile for applications ranging from plastic bottles to piping.
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