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Preparation of Collagen Fiber-plant Fiber Shielding Paper and its Microwaves Shielding Efficiencyency
  
DOI：10.11980/j.issn.0254-508X.2011.08.004
Key Words:collagen fiber  chemical modification  microwaves absorbent  shielding paper  shielding efficiency
Fund Project:国家科技支撑计划项目 (2010AA0621629)。
Author NameAffiliation
刘一山1 1.四川大学，四川成都，610065 
郭佩佩2 2.四川大学制革清洁技术国家工程实验室，四川成都，610065 
廖学品1 1.四川大学，四川成都，610065 
石　碧2 2.四川大学制革清洁技术国家工程实验室，四川成都，610065 
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Abstract:Collagen fibers (CF) were extracted from domestic animal skins, which were the novel microwaves absorbent after chemical modification. The microwaves shielding paper was prepared using collagen fiber microwaves absorbent blended with plant fibers (KP bamboo pulp). The effect of dosage of collagen fiber microwaves absorbent on the shielding efficiency (SE) and strength of the shielding paper was investigated. Experimental results indicated that the shielding efficiency of plant fiber paper could be obviously improved after collagen fiber microwaves absorbent was added, and its SE values could be increased with the increase of the dosage of the absorbent. In the paper with basis weight of 90 g/m2, the SE reached at 35 dB when 60% （mass basis）of absorbent was added. Further investigation indicated that the strength of plant fiber paper was enhanced when the content of absorbent was not higher than 55%. Therefore, the collagen fiber can be used to produce shielding paper.
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