Cellulose-based polymer

Organic polymers and resins have also been used for zeolite binding. An early example is the use polyurethane in the formahon of vibration-resistant zeolite porous bodies for refrigerant drying [90]. Organic binders such as cellulose acetate and other cellulose-based polymers have also used to mitigate problems with binder dissolution in aqueous phase separations [91, 92]. Latex has also been used as a water-stable organic binder [93]. More recently, thermoplastic resins, such as polyethylene have also been used as binders for zeolites [94]. 

Considering all the above criteria, PSf, PES, PAN, PVDF and cellulose-based polymers (cellulose acetates/CA/and regenerated cellulose) are mostly used for commercial UF membranes (see also Section 2.6.1). 

Propylene carbonate may additionally be used as a solvent, at room and elevated temperatures, for many cellulose-based polymers and plasticizers. Propylene carbonate is also used in cosmetics. 

This class of cellulose derivatives includes hydroxypropylmethylcellulose or HPMC, hydroxyethylcellulose (58), methylcellulose, HPC, and ethylcellulose. As mentioned earlier, most cellulose-based polymers except for PVP, have lower surface tension values in the range of 40-50 mN/m, thus similar adhesive and film-forming qualities will be seen. 

WO 99/14245 03/1999 Leupin et al.l Procter Gamble Laundry detergent compositions containing cellulosic-based polymers to improve fabric appearance and integrity Laundering of fabric/textiles with the additive leads to overall improvements in fabric appearance, pill/fuzz reduction, antifading properties, improved abrasion resistance, and enhanced softening... 

In this chapter, the discussion is focused on the research on cellulose-based polymer composites conducted in some tropical countries in Southeast Asia. Southeast Asia is a subregion of Asia located in the tropical zone, where a variety of plants grow. Hence, there is a high availability of cellulose-based materials found in this area. This situation enhances the attractiveness of research on cellulose-based composites. The reported findings of researchers in Southeast Asia about the processing, properties and apphcation of composites made of commonlyused cellulose-based fibers such as sisal, flax, hemp, ramie, jute, kenaf, etc., are discussed along with many kinds of cellulose-based fibers of interest which have not been reported elsewhere. This chapter is a combination of reviews on some unique ceUulose-based polymer composites in Southeast Asia together with a report on the research conducted by the authors. 

Keywords Cellulose-based, polymer, composite. Southeast Asia... 

Research on Cellulose-Based Polymer Composites in Southeast Asia 43... 

Like other tropical countries, there are areas of biodiversity in Southeast Asian countries. There is a large variety of species living in the area. Hence, there are many unique species that cannot be found in other places like four-season countries. This situation leads to a greater interest of researchers in Southeast Asia to explore many kinds of natural material resources, including cellulose-based materials. In this chapter, a review of some of the research on imique cellulose-based polymer composites in Southeast Asian countries is presented. The discussed resources include sugar palm... 

This chapter has shown the great efforts of researchers in Southeast Asia to develop cellulose-based polymer composite, especially from the abundant resources in Southeast Asia. In terms of mechanical properties, several treatments, from the cheapest alkali treatment to the expensive coupling agents, have been reported. However, developing a cellulose-based polymer composite that can compete with conventional fiber... 

Chemical Modification and Properties of Cellulose-Based Polymer Composites... 

Chemical modification is an often followed route to improve specific characteristic properties of cellulose-based polymer composite materials. In this chapter, several types of chemical modifications along with the incorporation of nanocaly into cellulose-based materials are described, and their effect on the structural and mechanical properties of the resulting composites are discussed. All chemical treatments are intended to improve at least one property of the composites. They can, however, have a positive or negative impact on other composite properties. Interaction, adhesion and compatibility between the cellulose fiber and the polymer are the main concerns of chemical treatment. Furthermore, chemical modification reduces -OH groups from the cellulose fiber surface. 

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