We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byLizbeth Hansford
Modified about 1 year ago
1 Water Soluble Polymers for Paper Strength Li Zhu Department of Chemical Engineering McMaster University, Hamilton, Ontario, Canada
2 Outline u Introduction u Dry strength resins u Wet strength resins
3 Cellulose Structure REF. Pulp and Paper. Chemistry and chemical Technology Vol. I
4 Hydrogen Bonds
5 Dry Strength Resin--- Starch u Glucose units
6 Cationic Starch
7 Cationic PAM
8 Conclusion---I u Dry strength resin should contain: D Cationic charges D H-bonding potential.
10 Wet--- Urea Formaldehyde Resin
11 Melanine Formaldehyde Resin
13 Wet Strength Enhancing Ref. Charles E. Farley, wet-strength resin and application, Chapter 3
14 Cationic Aldehyde Starch
15 Conclusion---II u Wet strength resin should be able to: D Homo-crosslinking D Covalent bonding with fibers
Inorganic Chemistry – Chemical Bonding. Chemical Bonding (1). When two or more atoms react --- chemical bond – Valence electrons – Form Ionic bonds.
The chemistry of cells: an overview Restricted to a subset of known elements, dominated by the chemistry of carbon… Reactions occur over a narrow range.
The Chemistry of Life Unit 3 Chapter 6. Atom Proton: positively charged particles Neutron: no charge particles Electron: negatively charged particles.
Learning Targets “I Can…” -List the four atoms that make up the four macromolecules. -Distinguish between a monomer and polymer. -List the four macromolecules.
What are the 4 main elements in the human body? How does a covalent bond differ from an ionic bond?
Chapter 3 – Atomic Structure. Elements Ionic Bonding Positively charged sodium is attracted to negatively charged chlorine to form sodium chloride (table.
Chemistry of Living Things ORGANIC AND INORGANIC COMPOUNDS.
Carbohydrates The most common building material on Earth Made of Carbon Hydrogen and Oxygen (Most have the ratio 1:2:1 for C:H:O) Used as energy source,
Chemistry: An Introduction to General, Organic, and Biological Chemistry, Twelfth Edition© 2015 Pearson Education, Inc. The polysaccharide cellulose is.
Chapters 2 and 3. It is assumed that this is all prior knowledge since you had chemistry. Atomic structure, basic terminology, octet rule and role.
Bonds, IMF, and Physical Properties How we can predict the behavior of molecules!
Carbon Chemistry Chapter 8. Essential Questions What are the 3 different arrangements of carbon? What are the 3 different arrangements of carbon? What.
2-3 Carbon Compounds. Carbon Compounds Organic chemistry – the study of compounds that contain bonds between carbon atoms.
Chapter 16 Polymeric Materials Monomers and Polymers Linear and Branched Polymers Types of Polymerization Addition Polymerization Condensation Polymers.
Carbohydrates Honors Biology Chapter 3. Carbon: The “Swiss Army Knife” of Chemistry. Carbon: The “Swiss Army Knife” of Chemistry. Carbon is essential.
Introduction. Definition Organic Chemistry is the chemistry of the compounds of carbon.
Basic Chemistry and Biochemistry Review Game. Q What are the charges on : Protons Neutrons Electrons.
Jeopardy Biology Chapter 3. Select a Category Sugar & Chemical Compounds Atomic Structure Fats and Proteins Energy and Reactions 1 point 1 point 1 point.
CARBON COMPOUNDS Section 2-3. THE CHEMISTRY OF CARBON Organic Chemistry The study of all compounds that contain bonds between carbon atoms Carbon 4 valence.
What Do Soil, Air, and Water Give to Plants? Purpose: Create a skit/drama performance to illustrate matter going into the plants and where it comes from.
Biomolecules- CARBOHYDRATES The Molecules of Cells.
Carbohydrates By the end of the lesson you should be able to: 1.Understand the difference between monosaccharides, disaccharides and polysaccharides 2.Draw.
Warm-up: What is organic? Please put this in your notes. CO 2 Water C 2 H 6 C 6 H 12 O 6 Oxygen gas Oak Tree Nitrates in soil.
Starch Adhesives Additives Additives Carmel Resins.
Ch. 2: “Chemistry of Life” Directed Reading: “Nature of Matter”
Bio 178 Lecture 2 The Nature of Molecules. Reading Chapter 2 Quiz Material Questions on P 34 Chapter 2 Quiz on Text Website (www.mhhe.com/raven7)
1 The Chemical basis for Life (continued) What holds atoms together? Ionic bonds Attraction between oppositely charged ions (atoms or molecules) Weak.
Chemical Reactions Jeopardy Review
CHAPTER 8 Compounds and Molecules 8.3 Intermolecular Forces.
Carbon Compounds Chapter 2 Section 3. The Chemistry of Carbon Carbon has the ability to form millions of different large and complex structures No other.
Carbohydrates Aims: Must be able to state the main forms of Polysaccharides. Should be able to describe the formation of Polysaccharides. Could.
Crash Course in Chemistry. Chemical Bonds (aka Intramolecular Forces) atoms bond in order to have the same number of electrons as the closest Noble Gas.
Chapter Six. The Structure of Matter PA Standards A Unifying Themes A Physical Science, Chemistry and Physics A Physical Science,
Organic Compounds Functional Groups CarbsLipidsProteins
Atoms and Bonding Chapter 6.1 cont.... Compounds and Bonding A compound is a substance that is composed of atoms of two or more different elements that.
BiochemistryBiochemistry Biology – Chapter 6 EOC Goal 2.
Chapter 2 The Chemistry of Life Section 3 Carbon Compounds.
You are What you Eat! Identification of Macromolecules with Indicators.
THE CHEMISTRY OF LIFE Honors Biology Chapter 2. The Nature of Matter Essential Question: How would you explain the relationship between atoms, elements,
Macromolecules The building blocks of life. Hierarchy of life Living organisms are made up smaller units; macromolecules; “giant molecules”. Living organisms.
UNIT 3: BIOCHEMISTRY/ENZYMES Miss Sabia8A. Essential Question How do organic and inorganic compounds compare?
Macromolecules. Carbon 4 valence e - s Forms strong covalent bonds “back bone”
Plants Unit Activity 4.5b: Explaining How Plants Grow: Biosynthesis Environmental Literacy Project Michigan State University.
Chapter 2 – The Chemistry of Life. Atoms = basic unit of matter Made up of: 1. protons (+) 2.neutrons (Ø) 3.electrons (-) Elements = a substance that.
Types of chemical compounds Two types of chemical compounds: – Ionic (electrolyte) – Covalent (molecular) The type of compound will determine its properties.
Chapter 2 The Chemistry of the Cell. The Importance of Carbon The Importance of Water The Importance of Selectively Permeable Membranes The Importance.
Carbon compounds lecture 2.3 Lumazine synthase: enzyme.
Carbohydrates Lab 6. Carbohydrates Carbohydrates are compounds of carbon (C), hydrogen (H) and oxygen (O). Usually found 1C:2H:1O. Usually grouped as.
Do Now Sit down and start to fill out the vocabulary organizer with any words that you know. This will be for homework.
© 2017 SlidePlayer.com Inc. All rights reserved.