基本信息
views: 74
![](https://originalfileserver.aminer.cn/sys/aminer/icon/show-trajectory.png)
Bio
I have focused my research on wood and wood components mainly on cellulose fibres and cellulose fibrils. Studying the defibrillation process, fibril modifications, joint formation and compatibility problem related to incorporation of fibres and/or fibrils in composite materials and also on the usage of cellulose in ew types of products. I have been rebuilding our JKR-instrument (both hardware and software), and made it semi-automated, with automated image analysis which have made it fully functional for air measurement. And we have used this instrument to measure the interactions between different wood bio polymers, e.g. lignin, hemicelluloses and cellulose.
Major parts of my research have been dealing with surface interaction and surface modifications. I have a strong background in using and developing advance AFM techniques. AFM is an excellent tool to obtain measurement with high lateral resolution both regarding force measurements and surface topography and also excellent to measure small forces. Majority of my AFM work have been dealing with force or friction force measurements and to obtain reliably measurements I have worked a lot on calibration issues. To obtain the information that I want to get I have done some modification of the AFM hardware and made some external software’s to control the instrument and to evaluate the obtained data.
The systems that have been studied are various types of polyelectrolytes including proteins and living cells. Different types of polyelectrolytes with various charge densities have been evaluated and single layered or multi-layered structures of polyelectrolytes or polyelectrolyte complexes or proteins have been tested as lubrication protectors adhesion modifiers or compatibilizer for composite materials. The amount of material adsorbed to different surfaces has mainly been characterized with QCM-D.
My interest to surface interaction and surface chemistry started during my work at Akzo Nobel, prior to my University studies, where I worked with bitumen emulsions and adhesion promoters to increase the wetability of bitumen to various types of stones. This work started my curiosity on for example how emulsion works, and why different types of surfactants gave better results than others and how could these surfactants affect the wetting of bitumen, and also make the bitumen resist water better. This interest focused my undergraduate studies into physical chemistry and surface chemistry, and my diploma work was done at the Institute for Surface Chemistry, YKI. After my diploma work I was offered to do research related to digital printing to study adhesion of toner to paper and cellulose networks. During the time at YKI I had a lot of small and large contract research project related to pulp and paper in collaborations with industrial partners. During my PhD study at Surface chemistry, KTH, I could really focus my research, and had good use of my previously experience and knowledge on for example surface modifications and surface characterisation. After receiving my PhD degree I turned my research back into forest product related issues and fibres doing both fundamental research on surface modifications and method development and also various applied research.
Research Interests
Papers共 113 篇Author StatisticsCo-AuthorSimilar Experts
By YearBy Citation主题筛选期刊级别筛选合作者筛选合作机构筛选
时间
引用量
主题
期刊级别
合作者
合作机构
Celluloseno. 4 (2024): 2047-2061
ACS applied materials & interfacesno. 25 (2024): 32874-32885
Negar Abbasi Aval, Ekeram Lahchaichi,Oana Tudoran, Farzaneh Fayazbakhsh,Rainer Heuchel,Matthias Lohr,Torbjorn Pettersson,Aman Russom
BIOMEDICINESno. 11 (2023): 3061-3061
Ana López-Guajardo, Azeer Zafar, Khairat Al Hennawi,Valentina Rossi, Abdulaziz Alrwaili,Jessica D Medcalf,Mark Dunning,Niklas Nordgren,Torbjörn Pettersson,Ian D Estabrook,Rhoda J Hawkins,Annica K B Gad
ACS applied materials & interfacesno. 30 (2023): 36811-36821
ACS macro letterspp.1530-1535, (2023)
Advanced materials (Deerfield Beach, Fla.)no. 45 (2023)
Load More
Author Statistics
#Papers: 113
#Citation: 2904
H-Index: 25
G-Index: 49
Sociability: 6
Diversity: 3
Activity: 39
Co-Author
Co-Institution
D-Core
- 合作者
- 学生
- 导师
Data Disclaimer
The page data are from open Internet sources, cooperative publishers and automatic analysis results through AI technology. We do not make any commitments and guarantees for the validity, accuracy, correctness, reliability, completeness and timeliness of the page data. If you have any questions, please contact us by email: report@aminer.cn