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Alkyl Ketene Dimer

Product Name
Alkyl Ketene Dimer
CAS No.
144245-85-2
Chemical Name
Alkyl Ketene Dimer
Synonyms
AKD;Alkylketene dimer;AKD WAX 1865;AKD WAX 1840;Ketenedimers;AKD SIZING AGENT;AKD CAS NO.144245-85-2;alkylketene dimmer AKD;ALKYL KETENE DIMER/AKD;ALKYL KETENE DIMER ,AKD WAX
CBNumber
CB11472634
Formula Weight
0
MOL File
Mol file
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Alkyl Ketene Dimer Property

storage temp. 
-196°C
CAS DataBase Reference
144245-85-2
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Biosynth Carbosynth
Product number
FA31709
Product name
Alkyl Ketene Dimer
Packaging
500g
Price
$70
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA167369
Product name
Alkyl Ketene Dimer - Liquid
Packaging
50g
Price
$95
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA31709
Product name
Alkyl Ketene Dimer
Packaging
1kg
Price
$110
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA167369
Product name
Alkyl Ketene Dimer - Liquid
Packaging
100g
Price
$150
Updated
2021/12/16
Biosynth Carbosynth
Product number
FA31709
Product name
Alkyl Ketene Dimer
Packaging
2Kg
Price
$180
Updated
2021/12/16
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Alkyl Ketene Dimer Chemical Properties,Usage,Production

Uses

Alkyl ketene dimer (AKD) was industrialized in 1956 and was only used in special papers requiring heavy sizing. In recent years, cultural paper has been basically changed to AKD neutral sizing, making it more widely used. Applications.

Chemical Properties

Alkyl ketene dimer is a white flake solid, which is soluble in organic solvents such as ethanol, benzene, chloroform, etc. It has the ability to resist weak acid, weak alkali or other penetrants.

Synthesis

Alkyl ketene dimer (AKD) is a white solid, which can be synthesized by acylation and dehydrochlorination of higher fatty acids (C≥12).

Mode of action

Alkyl ketene dimer (AKD) is a water-insoluble solid with a melting temperature between 40 and 60 °C. It is a widely used neutral-sizing chemical in the papermaking industry, as the compound decreases the rate of aqueous liquid penetration into papers. The compound possesses one unsaturated β-lactone ring and 16–18 carbons of the alkyl groups. Its β-lactone ring can readily react with hydroxyl groups of cellulose to form a β-ketoester bond, enabling its hydrophobic tails to arrange into hydrophobic domains. In the presence of water, however, the reactivity of AKD with water is faster than with hydroxyl groups, generating dialkylketone with no or low internal sizing ability, i.e., the ability of additives to facilitate the water-resistant protection of a paper’s surface. Ordinary sizing with AKD involves a complex series of processes, including emulsification of the waxy AKD material; measures to avoid the agglomeration of the emulsified AKD particles; addition of a stabilized AKD dispersion to the papermaking furnish; interactions with various retention aid chemicals to fix the material onto solid surfaces; and various spreading and curing processes that take place during the drying and cooling of the paper product[1-2].

References

[1] Chariya Kaewsaneha and Pakorn Opaprakasit*. “Preparation of Water-Based Alkyl Ketene Dimer (AKD) Nanoparticles and Their Use in Superhydrophobic Treatments of Value-Added Teakwood Products.” ACS Omega 7 31 (2022): 27400–27409.
[2] Sunil Kumar, Swapan K. Chakrabarti, Vipul S. Chauhan. “Separation and analysis techniques for bound and unbound alkyl ketene dimer (AKD) in paper: A review.” Arabian Journal of Chemistry 9 (2016): Pages S1636-S1642.

Alkyl Ketene Dimer Preparation Products And Raw materials

Raw materials

Preparation Products

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Alkyl Ketene Dimer Suppliers

Suzhou Tianma Specialty Chemicals Co.,Ltd.
Tel
+86-512-66319723
Fax
+86-512-68090175
Country
China
ProdList
110
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Hangzhou J&H Chemical Co., Ltd.
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Nanjing Lanya Chemical Co., Ltd.
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Shanghai YuanYe Biotechnology Co., Ltd.
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View Lastest Price from Alkyl Ketene Dimer manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
ALKYL KETENE DIMER 144245-85-2
Price
US $60.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-05-13
Shandong Deshang Chemical Co., Ltd.
Product
ALKYL KETENE DIMER 144245-85-2
Price
US $10.00-5.20/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 tons
Release date
2024-07-31
Hebei Weibang Biotechnology Co., Ltd
Product
ALKYL KETENE DIMER 144245-85-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-31

144245-85-2, Alkyl Ketene DimerRelated Search:


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  • Alkyl Ketene Dimer - Liquid
  • ALKYL KETENE DIMER ,AKD WAX
  • Ketenedimers
  • AKD SIZING AGENT
  • ALKYL KETENE DIMER ISO 9001:2015 REACH
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  • ALKYL KETENE DIMER/AKD
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  • 144245-85-2