Calcium Carbonate Nanopowder
SKU: 58984816957

Calcium Carbonate Nanopowder

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Description

Calcium Carbonate NanopowderProduct Name Name: Calcium Carbonate Nanopowder Product Overview Nano calcium carbonate is a new type of lightweight calcium carbonate products, due to the ultrafine calcium carbonate particles, fine and uniform particle size, narrow distribution, large specific surface area, surface activity and dispersion of good, high surface energy, so that in actual use embodies a lot of ordinary calcium carbonate materials do not have more excellent performance,

Product Name

Name:Calcium Carbonate Nanopowder


Product Overview

Nano calcium carbonate is a new type of lightweight calcium carbonate products, due to the ultrafine calcium carbonate particles, fine and uniform particle size, narrow distribution, large specific surface area, surface activity and dispersion of good, high surface energy, so that in actual use embodies a lot of ordinary calcium carbonate materials do not have more excellent performance, more widely used. The main synthesis methods of calcium carbonate nanoparticles are carbonation method, precipitation method, etc. The produced calcium carbonate mainly exists in the form of calcite, and its particle size ranges from dozens to hundreds of nanometres. In the polymer melt, the agglomeration of the filler powder will adversely affect the performance of the material, so it is necessary to carry out surface modification of calcium carbonate nanoparticles before filling. Some commonly used surfactants are silane coupling agents, stearic acid, aluminates/titanates coupling agents, etc. These coupling agent molecules usually contain both hydrophilic and hydrophobic groups, which, combined with the groups on the surface of calcium carbonate, are able to reduce the surface energy of the calcium carbonate nanoparticles and improve their dispersion properties.


Technical Parameter

 

Form: White powder

Particle size: 20-110 nm

Purity: >99%

Moisture content: ~0.28%

Whiteness: ~95.2

PH value: ~9.55

Specific surface area :~24m2/g

Burning loss: ~43.6%

Magnesium oxide content: ~0.26%


Product Features

1)Low water content, nearly neutral, and has good chemical stability, do not react with the curing glue in adhesives.

2)The large amount of addition can greatly reduce the cost of adhesive products (for example, the amount of silicone rubber sealant is more than 50%, and the amount of polyurethane adhesive is 20-30%).

3)With reinforcing effect, can improve the mechanical properties of the adhesive, reduce the shrinkage and thermal expansion coefficient, increase the thermal conductivity, improve heat resistance and adhesion force, improve the mechanical strength (hardness and compression strength) and corrosion resistance; can also lubricating the adhesive, improve the operation conditions, and improve the bonding performance.

4)Nano calcium carbonate has small particle size and large specific surface area, and has good solubility with the adhesive after certain surface treatment. It can be used as a thielectric agent in the adhesive system to adjust the viscosity of the adhesive, prevent the adhesive from sagging during the vertical surface construction, and improve its retention characteristics.

5)In the process of making color material, nano calcium carbonate is easy to color and will not affect the color of the product.

6)It has different modification effects in different adhesives, which can improve its rheological properties in PVC plastic sol; increased strength and wear resistance in silicone structural sealant; incremental reinforcement and heat resistance in hot melt adhesive; and thickening and adhesion in water-based adhesive.


Application Fields

1)Plastics industry: As a filler and enhancer, nano-calcium carbonate can improve the rigidity, toughness and heat resistance of plastic products, and improve their processing performance. For example, adding a small amount of light calcium carbonate to PVC products improves the tensile strength.

2)Rubber industry: Nano calcium carbonate used in high-performance tires, auto parts, bicycle tires and running shoes and other products, can increase the strength, rigidity and durability of the product.

3)Paper industry: used as a filler, nano calcium carbonate can improve the brightness, whiteness and flatness of paper, suitable for advanced packaging paper.

4)Patings and inks: Adding nano-calcium carbonate to coatings and inks gives the coating better gloss and durability, while reducing production costs.

5)Pharmaceutical industry: nano-calcium carbonate, as an important component and calcium source additive in the culture medium, is also used in the production of antibiotics, painkillers and gastric drugs.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 58984816957

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Ingersoll1969
Lake Worth, US
★★★★★ 4
Must-Have for Law Students
Format: Paperback
This is a good book. A lot of the trouble with law school exams is law professors are notoriously bad teachers, and these bad teachers write bad exams. Granted, this is a worst-case scenario, but if you've been to law school for more than one semester, there's a good chance that at least one of your professors has utterly bamboozled you into how he/she wants the final written. So what this book does is give you something of a blueprint and a method of examining fact patterns and exploring the question(s) so that you can simply go into the exam and take it without much fear. Where the book fails to be of help though, is with the IRAC method. I wholeheartedly agree that IRAC is a too-constrictive method of writing that tends to inhibit most students from really expressing what they know. Law professors largely want a mechanical recitation of rules followed by mechanical analysis, so law students spend hours and hours memorizing rules with the ultimate purpose of using them in an IRAC format. It's absurd, but that's the way it is. And this book simply dismisses the fact that lazy law professors love IRAC for the fact that it gives them a template from which they can read and score exams quickly. But still, you can construct an IRAC using this method, it just doesn't lend itself seamlessly to it, which is pathetic--not with respect to GTM, but to the teaching and testing methods used by professors. If you don't believe me, and if you haven't already done so, go look at model bar answers from your state and see if they employ a rigid IRAC formula. They don't. And so to me, that's what this book was good for--being able to write bar exam quality answers that leave room for a different writing styles and methods of analysis. If you're just starting law school, buy this book. If you're already in and still struggling, buy this book. If you're the king or queen of fastidious, multiple, anally retentive headers on your exams, read this book and go look at bar answers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2016
A
Verified Purchase
autofila
Carnegie, US
★★★★★ 5
The ONLY MARKET-AVAILABLE "ISSUE-IDENTIFICATION" book!!!
Format: Paperback
I purchased it twice: the first time in the law school, but I had misplaced it in the school library & lost it. The second time: while preparing for a BAR exam, I have realized that I material, but I was still missing issues. The book helped. Also, I did not get it on my first read & deeply dissatisfied. But, upon reading the second time & reading it later, I have gotten the point completely. The book helps to formulate what the issues are & you have to understand how to "uncover" the issues prior to formulating the issues. The book helped again.
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Reviewed in the United States on September 15, 2024
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Jacob Hakim
Carnegie, US
★★★★★ 5
"It Depends"
Format: Paperback
Was a great read up until I decided to not enroll in law school, at which point I cast it aside. It gets very technical about how to write exams, how to think like a law school student. Might as well be called "It Depends," because lawyers are contextualists. Do you really want to go 200k in debt though? Or even 40k total debt at that safety school with the nice scholarships? Is there something you're trying to prove? It's all love on this end; I'm just trying to help you make the right decision, even if it puts you back at square one. Give computer science another shot. Or business analytics. Heck, even video editing! But if you really think law is suitable for you (and it may well be), then grab this book your 0L summer and crush 1L. You already know you're smart. Now you just have to work hard and take the right steps, which this book will outline for you. Also you can negotiate scholarship amounts if you have leverageable offers from peer schools. Good luck, lost girl/boy/zem.
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Reviewed in the United States on October 1, 2018
S
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Sleven
Omaha, US
★★★★★ 5
Great book for 1Ls or those prepping for Law School
I bought this book in order to prepare for law school and it's amazing. The information is invaluable. It's easy to read and written in a way that makes the information interesting. I recommend this book to anyone preparing to go to law school. It provides very useful information on how to prepare for law school exams that I found especially helpful. Great book, well organized and well written.
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Reviewed in the United States on May 12, 2016
M
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monica guajardo
Lake Worth, US
★★★★★ 5
Competitive Edge! Highly recommend!
Format: Paperback
This was one of the best investments I made before I started law school! I read this book July-August before my first semester. Even though I hadn’t taken any classes just yet, it provided me with a decent roadmap for approaching my classes while prioritizing strategy for my finals. I then reviewed the main points of each chapter, especially the last few chapters, in October to make sure I was preparing well with finals fast approaching. Long story short, this book gave my a competitive edge over many of my peers for every final I took! I finished my first semester with all As and in the top 2.5% of my class. Highly recommend! Do yourself a favor, start early, and always remember that the ultimate answer to many law school is exams is “maybe”
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Reviewed in the United States on December 29, 2020

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