JeffJosh - TDD-Global

Q how to sew silky polyester

JeffJosh Release Time: June 25, 2024, 4:10 AM

No, SAE 30 and 5W-30 are not the same. SAE 30 is a single-grade oil, meaning it’s designed to work effectively at a specific temperature range. It does not have additives that improve its viscosity at different temperatures. On the other hand, 5W-30 is a multi-grade oil. The “5W” indicates the oil’s viscosity at cold temperatures (the W stands for winter), and the “30” reflects its viscosity at engine operating temperatures. This means 5W-30 oil can adapt to a wider temperature range, providing better protection during cold starts and maintaining its viscosity at higher temperatures. In summary, 5W-30 offers more versatility across temperature extremes than SAE 30.

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Q what are inulin fibers

ZonaBridges

JeffJosh Release Time: June 24, 2024, 3:08 PM

NEW DELHI: Menthol prices rose by Rs 5 per kg here today on rising demand from pharmaceutical units amid paucity of stocks. Menthol bold crystal, menthol flake and mentha oil prices rose by Rs 5 each to conclude at Rs 1,495, Rs 1,415 and Rs 1,285 per kg, respectively. Traders said increased demand from pharmaceutical units and other consuming industries against restricted arrivals from producing belts in Uttar Pradesh, mainly pushed up menthol prices on the wholesale chemical market here. The following are today’s quotations: Ammonium chloride (50 kg) Rs 1,000-2,200, Acetic acid (1 kg) Rs 40-52, Ammonia bicarb (25 kg) Rs 400-680, Boric acid technical (50 kg) Rs 4,500-5,200, Borex granular (50 kg) Rs 2,300-2,600. Caustic soda flake (50 kg) Rs 1,850-1,950, Citric acid (50 kg) (China) Rs 3,000-3,200, Citric acid deshi (50 kg) Rs 3,000-3,300, Camphor slab (1 kg) Rs 380, Camphor powder (1kg) Rs 330, Glycerine (1 kg) Rs 90-125, Hexamine (1kg) Rs 95, Hydrogen peroxide (1 kg) Rs 36-50...

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Q how to make polymer thin film

MurrayRaglan

JeffJosh Release Time: June 24, 2024, 9:57 AM

When adding wax to polyester resin, the standard ratio is about 2% wax by weight to the resin before adding any catalyst. This wax, often referred to as surfacing agent or sanding aid, rises to the top of the resin as it cures, forming an air-inhibition layer. This crucial layer prevents the resin’s surface from remaining tacky, allowing it to fully cure and be sanded or further worked upon. It’s essential to accurately measure the wax-to-resin ratio to ensure optimal curing and finish of the polyester resin project. Depending on the specific project requirements or environmental conditions, slight adjustments to the wax ratio may be needed.

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Q how to calculate thickness of thin film

OgdenLandon

JeffJosh Release Time: June 24, 2024, 6:39 AM

ReutersIt is anticipated that the Ta’ziz complex will benefit from the free trade agreement between India and the UAE, which was signed in February of this year.Reliance Industries (RIL) and Abu Dhabi Chemicals Derivatives Company RSC (Ta’ziz) have signed the formal shareholder agreement for the Ta’ziz EDC & PVC project.Oil-to-telecom conglomerate, RIL, is a strategic partner with Abu Dhabi National Oil Company (ADNOC) and ADQ, an Abu Dhabi-based investment and holding company, in Ta’ziz EDC & PVC, a world-scale chemicals development at the Ta’ziz Industrial Chemicals Zone in Ruwais.The joint venture will construct and operate a Chlor-Alkali, Ethylene Dichloride (EDC) and Polyvinyl Chloride (PVC) production facility, with a total investment of over $2 billion, the company said in a statement. These chemicals will be produced in the UAE for the first time, unlocking new revenue streams and opportunities for local manufacturers to “Make it in the Emirates.””The formal sha...

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Q dioxin from vinyl chloride

UrsulaForster

JeffJosh Release Time: June 22, 2024, 12:16 PM

PVC. a versatile plastic utilized in construction. medical and household products. has the potential for a second life through recycling. This process involves crushing and melting the PVC into small pieces to be repurposed into new items such as pipes. flooring. and garden hoses. Recent advancements have also made it possible to create more sustainable materials for apparel and auto parts from recycled PVC. However. due to its complex nature. proper separation from other plastics and removal of hazardous additives is necessary for efficient PVC recycling. Therefore. promoting advanced recycling technologies is essential in expanding the scope of PVC recycling and promoting sustainability.

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Q yarn antonym

HelenEmily

JeffJosh Release Time: June 18, 2024, 10:37 AM

Yarn manufacturing involves several crucial steps to transform raw fibers into finished yarn used in textiles. The process can be broadly divided into three phases: preparation, spinning, and post-spinning treatments. Initially, raw fibers (which can be natural like cotton or wool, or synthetic like polyester) are cleaned and carded to align the fibers, making them easier to spin. Spinning is the core of yarn manufacturing, where fibers are twisted together to form a continuous thread. This can be done through ring spinning, open-end spinning, or newer methods like air-jet spinning, each offering different yarn characteristics. After spinning, yarns may undergo various treatments, such as mercerization for cotton, to improve strength, luster, or dyeability. Throughout these stages, quality control is paramount to ensure the final yarn meets the required standards for its intended use, whether in apparel, home textiles, or industrial applications. Yarn manufacturing has evolved with tec...

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Q hdpe pipe schedule

SandyWhitehead

JeffJosh Release Time: May 13, 2024, 2:14 PM

HDPE (High-Density Polyethylene) pipes are categorized by their dimensions, pressure ratings (PN), and not by the traditional ‘schedule’ system used for metal pipes. This system denotes wall thickness in relation to the outer diameter, ensuring it can handle specific pressure ratings. HDPE pipes are widely appreciated for their flexibility, corrosion resistance, and durability, making them a popular choice for water and gas distribution, sewage applications, and conduit for cables. When selecting an HDPE pipe, it’s crucial to pay attention to the PN rating, which indicates its pressure capacity, and the SDR (Standard Dimension Ratio), ensuring it matches your project’s requirements for pressure and flow.

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Q pvc softening temperature

IanBilly

JeffJosh Release Time: April 28, 2024, 7:19 AM

Premature Ventricular Contractions (PVCs) are extra heartbeats that originate in one of the heart’s ventricles. They are common and often harmless but can sometimes cause symptoms or indicate underlying heart conditions. Side effects may include palpitations or the sensation of the heart skipping a beat, chest pain, dizziness, and fatigue due to disrupted heart rhythm. For individuals with frequent PVCs or underlying heart issues, there could be an increased risk of developing more serious arrhythmias or cardiomyopathy. It is essential for those experiencing these symptoms frequently or severely to consult a healthcare professional for assessment and possible treatment to manage the condition and mitigate risks. Lifestyle modifications and medications are common management strategies.

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Q what is polyester jersey

MaureenDick

JeffJosh Release Time: April 28, 2024, 5:03 AM

Polyester is a synthetic fabric known for its durability, resistance to stretching, shrinking, and most chemicals. It dries quickly, making it popular for outdoor clothing and gear. Polyester retains its shape well and is highly stain-resistant, which contributes to its widespread use in garments, furnishings, and textiles. However, it can be less breathable than natural fabrics, leading to discomfort in hot conditions. Additionally, being a plastic-based material, polyester is not biodegradable, raising environmental concerns.

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Q how to use magpie pigment

FelixBronte

JeffJosh Release Time: April 23, 2024, 9:49 AM

Magpie Pigment is a popular option for various art forms due to its vivid. long-lasting hue. To ensure optimal application. start by prepping the surface for painting. Depending on the desired effect and medium. mix blackcurrant pigment with watercolor. oil-based or water-acrylic mediums. For crafts and cosmetics. combine pigments with a base product until evenly colored. Before use. test a small area to determine color strength and durability. Take care when handling fine pigments and wear protective gear such as gloves and masks to avoid inhalation or skin contact. Keep your paints in a cool. dry place to preserve their quality. And remember. don’t be afraid to experiment with different combinations and ratios to achieve unique effects when using magpie pigment.

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