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How to Select a Moisture Analyzer for Moisture Plastic Analyzer

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moisture analyzer

When you select a moisture analyzer for a moisture plastic analyzer you will need a model that not only can quickly but also accurately gauge the moisture content of these resins.   And as with many quality control requirements that involve moisture content, you’ll want a moisture balance that can meet standards set by trade associations and professional organizations.

In this post you’ll get a briefing on the following:

  • why low moisture content is important in plastic resins
  • a technical standard that applies to determine moisture in plastics
  • how benchtop moisture analyzers work
  • a standards-compliant moisture analyzer
    for plastic resins

Why Low Moisture Content is  Important

Owners of injection molding companies and operators of injection molding machines are aware that incorrect moisture content in plastic resins can result in an inferior finished product.

Product shipped from resin suppliers may have the specified moisture content but ambient conditions at the injection molding facility could raise or lower moisture content before it is placed in the injection molding machine hoppers.

Companies involved in producing quality products by injection molding take steps to ensure proper resin storage. This along with using commercial drying ovens are two important steps in quality control.

Periodic checks with a benchtop moisture analyzer for plastic resins provides assurances that moisture content is on target, or otherwise call for pre-processing adjustments.

moisture analyzer

A Standard for Determining Moisture in Plastics

The American Society for Testing and Materials (ASTM) has published standard governing testing the moisture content of plastics*. It employs what is called the LOD method, or the loss of weight on drying. This is also described as the thermogravimetric method.

Taken directly from the published standard the test method is summarized here:

“The specimen is spread onto a sample pan that is supported on a balance in a heating chamber that has been preheated and equilibrated to the specified idle temperature. It is then heated to vaporize the moisture. The analysis is completed when the indicated weight loss falls below a rate specified in the test conditions. The total loss of weight is integrated and displayed as the percent of moisture. Both the analyzer’s balance and heater are calibrated to NIST** standards to achieve precise and accurate results.”

How a Benchtop Moisture Analyzer Works

The ASTM standard briefly describes the process.  Here is a bit more detail.

A benchtop moisture balance employs a drying process to extract and measure moisture.  It combines a precision balance and a heater.  In a simple 4-step procedure:

  1. The drying process parameters are entered on a keypad. These are the drying temperature which may include how the heat is applied (a.k.a. heating profile) and shut-off criteria.
  2. The sample is placed on a weighing pan located in the drying chamber.
  3. The drying chamber is closed and the analysis begins.
  4. The instrument calculates the moisture content by comparing the initial weight of the sample to the weight after drying is complete.

As in the standard, the total loss of weight is integrated and displayed as the percent of moisture.

Halogen quartz glass is generally the source of drying heat. These heaters provide constant even drying of the sample after temperatures are programmed in by the moisture analyzer operator. Temperature is generally maintained within 1⁰C of the selected setting.

While most analyses involve ramping the temperature to a maximum of 160⁰C or less, in special cases higher temperatures may be necessary to achieve complete drying. The analysis automatically terminates either when the dry weight is stable or at a time specified by the operator.

For more detail on how these instruments work please check our post on moisture analyzer questions and answers.

A Moisture Analyzer for Low-Moisture Plastics

A moisture balance complying with ASTM D 6980 – 04 is the  DSC 71P available from Tovatech.  This model provides precise moisture analysis and is equipped with a default program to test 75% of the most commonly used resins.  The  DSC 71P is highly recommended for:

  • Molders processing a limited number of plastic formulations
  • Molder having QC problems related to moisture content
  • Molders who need to replace an old moisture analyzer
  • Molders adding a new production facility and need another moisture analyzer to support it

It is also an ideal tool to check the moisture content of incoming resins, confirm moisture content before filling hoppers and check the performance of bulk dryers.

The  DSC 71P Moisture Analyzer Close-up

Thermogravimetric moisture analyzers such as the DSC 71P calculate moisture content by loss of weight on drying (LOD). This is more environmentally friendly and far less complex than the Karl Fischer moisture analysis requiring a high degree of skill and the use of hazardous chemicals.

Yet due to the very small amounts of moisture that can be tolerated in resins such as the <0.02% for polyethylene terephthalate sensitivity is critical. To address this the  DSC 71P has a readout of 0.0001g or 0.001% moisture. The repeatability (standard deviation) is ± 0.01% moisture content for a 10g sample.

Other features include:

  • 3 free tech support phone calls for optimizing test procedures
  • Custom programming for your resins available prior to shipment
  • Short measuring time. Get results quickly with fast and uniform heating
  • High repeatability. Superior accuracy even when weighing small samples
  • Real-time graphic display. Watch drying take place via a connected PC screen
  • Accuracy checks using sodium tartrate dihydrate with its stable moisture content

Simple Resin Moisture Calculation

Once programmed with up to 20 testing procedures all the operator has to do is call up the program for the particular plastic to be analyzed. The unit’s vacuum fluorescent display shows the drying profile (standard, quick, step, or ramp), time, and temperature (30⁰ to 200⁰C in 1⁰ increments) as well as shut-off criteria.

The unit comes with a 9mm (3.5 inches)  sample pan, WinCT Moisture software, 30 g sodium tartrate dihydrate for accuracy checks,  tweezers, a spoon, a RS 232C cable connection, and the instruction manual. A dot-matrix compact printer is available as an option for record-keeping. Other options include a 50 g calibration weight and a certified temperature calibrator.

A Resin Moisture Analyzer at an Attractive Price

Plastic resin moisture analyzers equipped with large libraries can cost around $10,000 or more depending on features. This is a substantial investment for small to medium-sized injection molding companies. The DSC 71P moisture balance with its broad range of features and outstanding accuracy is available for under $5,000.

Caution should be exercised when looking at lower-cost units because of their inability to deliver the high accuracy and precision needed for quality control when working with low-moisture resins.

Contact the scientists at Tovatech for advice on selecting and using a moisture analyzer to support your injection molding operations.

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10 things a new Forex trader should be aware of

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10 things a new Forex trader should be aware of

Forex trader

To help you get started Themerrymarkets.com, here are the top 7 rules for trading the currency market successfully – which you can adopt to become a better trader:

  1. Trading is an art, not science The systems and ideas presented here are the results of years of observing price movements in this market and provide approaches to trading in trend and counter-trend configurations. However, they are by no means a sure guarantee of success. Neither trading approach is 100% accurate. Therefore, no trading rule is totally absolute (except the rule on the use of stop-losses, the strategy for limiting losses). However, these 7 rules work well in a variety of market conditions and will help keep you out of harm’s way.
  2. Use both technical and fundamental analysis Both methods are important and have effects on price movements. Fundamental analysis is useful in determining general aspects of the market that can last for weeks, months, or even years. Technical analysis can change quickly and is useful for identifying specific input and output levels. A golden rule: enter and exit based on technical analysis and advance based on fundamental analysis. For example, if the market were fundamentally a positive environment for the dollar, we would have to look for opportunities to buy in falls instead of selling in recoveries.
  3. Never let a winning deal turn into a loser The currency markets can move quickly, with gains that turn into losses in a matter of minutes. Therefore, proper capital management is essential. There is nothing worse than watching a trade go up to 30 points in a minute, to see it reverse the movement a little later. You can protect your profits by using trailing stops and trading for more than one lot.
  4. Never risk more than 2% per trade This is the most common and most unfulfilled rule in trading. The trading books are full of stories of traders losing one, two, and even five years of profit in a single trade that has gone terribly wrong. By setting a stop loss of 2% for each trade, you would have to bear 10 consecutive losing trades to lose 20% of your account.
  5. Always match the strong with the weak When a strong army is positioned against a weak one, the odds are heavily tilted toward victory for the strong army. This is how you should approach trading. When we trade in currencies, we always do it in pairs – each trade involves buying one currency and selling another. Because strength and weakness may last for some time as economic trends evolve, pairing a strong currency with a weak one is one of the best ways for traders to gain an edge in the currency market.
  6. The risk can be predetermined and the reward is unpredictable Before negotiating, you must know your limit. You need to find out what would be the worst-case scenario and place your stop loss based on a technical or monetary level. Every negotiation, no matter how sure you are of your outcome, is an educated guess. There is nothing safe in trading. Furthermore, the reward is unknown. When a currency moves, the movement can be huge or small.
  7. No excuses The “no excuses” rule is applicable at times when the operator does not understand the movement of prices in the markets. If, for example, you have a short position in a currency as negative news is anticipated and that news takes place, but the currency recovers, you should exit immediately.

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Many Marcelo producing opportunities for advanced business models in Africa-2020:

Umar Nisar

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Africa among the other continents holds incomparable importance of its own. It is undoubtedly enriched with natural resources. Also, this country has some prominent challenges like the adverse impact of climate change, ecosystem loss, food crisis, energy crisis, social and racial inequality, environmental sustainability, crime & violence. Many Marcelo is one of the most prominent personalities who noticed and stood up in the first line to fight for African’s rights and their prosperity.

Many Marcelo and his project: 

Many Marcelo is a globally renowned young leader, an innovator, a researcher, and a promoter of business models between Africa and America and human rights for young African leaders. A victorious implementation of Many Marcelo’s projects and vision “Innovation Africa YLA” would solve more than half of African’s social & financial problems. His focus is, as the name indicates, the start of an era in Africa where there will be limitless opportunities for youth for doing the innovation and bringing the latest and advanced business models which will change the fate of Africa and also raise its status globally. This will bring mutual harmony and peace among people. 

 Undeniable issues of Africa Many Marcelo noticed:

According to Many Marcelo, the most disturbing factors that required attention in Africa were racial and social inequality, lack of development infrastructure, and business models for the future generation of Africans. Also, Many Marcelo did a long term analysis on African’s problems that turned out to be humans’ rights, job offers, and technology, and business models; also he witnessed women abuse, child mortality, and hunger. 

How did Many of Marcelo‘s projects earn him global recognition?

“Innovation Africa YLA (Young Leaders of America)” came up with some Holy Grails and major visionary points that took a lot of struggle but also earned attention globally. Along with the detailed analysis, Many Marcelo has also some prominent research work that he carried out for the above-mentioned problems. This research work earned him huge recognition. He also became prominent for one of his projects for the creation of young African leaders in America, for the development of Africa. The dreams of people in America could come true for people living in Africa if their plans and vision could be implemented properly.

Certificate winner by Allied Academy USA:

Many Marcelo being the founder and vision giver of Innovation Africa YLA was privileged to be awarded the certificate of best scientific research, by Allied Academy USA & UK in the area of Innovation in healthy, technology systems and pandemic prevention solutions & vaccine production in Africa in 2016. This was when the yellow fever pandemic broke out in Angola, DR Congo & other African countries. The award counts as one of the major achievements of Marcelo during his career as an expert & mentor in project management and consultancy.  

Many of Marcelo’s ways to tackle problems:  

Many Marcelo decided to involve the young generation of Africa to contribute their part to the project. He wanted the youngsters to stand in the first line to achieve their rights and bring mutual harmony to their society. This could only be done by the individual efforts of the youth of Africa. For this purpose, Many Marcelo preferred to talk with young African adults. He added: “We talk to young African adult residents in North America about setting goals, about being leaders, and about understanding their rights and community duties.” 

Why the involvement of youth was the key to success?

Many Marcelo has the vision to guide youth about “how to undertake, invest, innovate and develop business models and social problems that could grasp the African’s community so that Africa could be built as a large and developed continent, because we believe in the empowerment of young people, despite the many political failures, and lack of investment that slow the continent’s development.”

More about many of Marcelo’s objectives behind his project:

Marcelo started his main goals as: “Our greatest goals are to promote peace and unity, for the favorable working environment for all the African people and young leaders, thus sharing all the knowledge acquired in the best universities in the world outside and implants it for the growth of Africa continent.”

 He also added that: “We want to create the support network needed to build a better Africa’s generation.” .The objective behind this was to develop programs to create diversified business models and connections between young leaders from different countries, strong cultural relationships, and technological development. This was possible to do only by acting and working in various areas that affect the continent by creating job opportunities.

 How to approach many Marcelo in person?

More power to Many Marcelo for his struggles and hard work, Africa is one the richest in natural resources continent and it will soon achieve the prosperity and equal human rights for its people. Also if you want more information about the Innovation Africa YLA project, consult his Instagram @many_marcelo, and approach Marcelo directly to explore more. 

 

 

 

 

 

 

 

 

 

 

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BUSINESS

A passion for travel and mindfulness: luxury suitcases from Monos

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A passion for travel and mindfulness: luxury suitcases from Monos

The luxury travel and lifestyle brand Monos is highly influenced by the Japanese mono no aware concept which focuses on the appreciation of the beauty found in fleeting moments. The company targets travellers that use their global adventures to grow and learn and are passionate about the way travel can boost our spiritual development. Mindfulness is also incredibly important to the team at Monos, whose website talks about the importance of being in the here and now. According to Monos, the world’s deep beauty is revealed during travel-based mindfulness. Also important to Monos is simplicity, which explains why their products tend to be reassuringly understated and are noted for their timeless appeal.

Vast attention to detail

The company’s products are created with materials and parts of the highest standards. Every last detail is regarded as vitally important by the team, with materials and parts being sourced from carefully-selected brands from around the world. From time to time, the company is unable to source the component that they need to ensure their standards are maintained. In this instance, it collaborates with industry specialists to produce it in-house.

Surprisingly affordable solutions

Many customers have commented on how affordable Monos products are compared to cases from other luxury travel brands. The company uses many of the same materials and factories chosen by big-name brands but can make savings and pass them onto customers due to the way it sells its products to them directly. Emotional human connections are of great value to the Monos team, who see these connections as essential for business and customer relations, living standards and satisfying travel experiences.

“Good is the enemy of great”

A key Monos slogan is “good is the enemy of great”. This is reflected in the attention to detail they have become noted for over the years. Monos products consist of components from factory partners that share their exacting standards. The company met with a large number of factories before deciding who to work with. Only brands that met their expectations and displayed the highest standards of craftsmanship, expertise and attention to detail were considered. The company’s CEO Colin continues to examine and inspect each Monos Carry-On case before it is added to the market.

Reimagining the traditional suitcase

Monos have worked on various pioneering solutions to rethink the classic suitcase for the modern world. These have included moving the handle release button to the underside to raise ergonomic standards, reworking the telescopic assembly to cut lateral and torsional movement and replacing the cast zinc used for tubes with high-grade aluminium. The changes made have resulted in improved ease-of-use, durability and visual appeal.

Virtually unbreakable materials

The company’s luggage cases are vacuum-formed with aerospace-grade German Makrolon polycarbonate. This material is almost unbreakable yet impressively lightweight. The inclusion of this material helps the cases to spring back into shape immediately when impacts occur. Other key components of Monos travel cases include Lisof Silent Run Wheels from Japanese manufacturer Hinomoto. This manufacturer is noted for its work with Mitsubishi, with its wheels being selected for their robust nature as well as their quiet operation and overall performance. The interiors of Monos cases consist of robust, anti-bacterial and waterproof 350 denier polyester.

Rigorous testing procedures

A massive 40 tests are carried to ensure expectations and standards are met. Each product is tested to make sure the most testing travel conditions can be overcome. Tests include colour fastness to crocking, abrasion resistance, stiffness, safety, tensile strength and more. The tumble test sees cases loaded with 16kg weights and put inside a rotating chamber. The case is met with a range of obstacles so high drops, hard impacts and rough handling can be simulated.

Mileage, jerk and drop tests

In the mileage test, loads are put inside the case and onto the telescopic handle. The case is then angled at 45° before being rolled at 4km/h on a specialised bumped treadmill to simulate rough and uneven terrain. In the telescopic handle jerk test, cases are dropped from great heights and stopped by the handle. During the drop test, the suitcase is stored at 12°C for several hours before it is loaded with weights of up to 25kg. The case is then dropped onto a number of corners, edges and surfaces.

Contacting Monos

As the Monos team are so keen to assist their customers and listen to what they have to say, they encourage them to get in touch whenever they have a query or any feedback to leave them. Customers who wish to learn more about Monos products, how they can benefit them and the 40 tests the cases are subjected to can head to the website or send an email to [email protected] Monos can also be found on social media networks including Facebook and Instagram.

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