Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions
Cellulose acetate (CA) is widely used in cigarette filters and packaging films, but due to its acetylation, it is difficult to degrade in the natural environment, and the problem of pollution has become a serious challenge. Understanding the degradation behavior and performance of CA in different en...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/23/4505 |
| _version_ | 1797399683475177472 |
|---|---|
| author | Jiao Tan Yinchun Liang Lihui Sun Zhanping Yang Jingjing Xu Dejun Dong Huan Liu |
| author_facet | Jiao Tan Yinchun Liang Lihui Sun Zhanping Yang Jingjing Xu Dejun Dong Huan Liu |
| author_sort | Jiao Tan |
| collection | DOAJ |
| description | Cellulose acetate (CA) is widely used in cigarette filters and packaging films, but due to its acetylation, it is difficult to degrade in the natural environment, and the problem of pollution has become a serious challenge. Understanding the degradation behavior and performance of CA in different environments is the basis and prerequisite for achieving its comprehensive utilization and developing efficient degradation methods. In this study, we investigated the degradation performance of CA in different aqueous environments to evaluate the effects of pH, salinity and microorganisms on CA degradation. The CA tows and films were immersed in HCl, NaOH solution, river water, seawater or homemade seawater for 16 weeks and the degradation mechanism was investigated by the changes in weight loss rate, degree of substitution, hydrophilicity, molecular structure and surface morphology. The results showed that the degradation of CA tow and film were the fastest in NaOH solution; the weight loss rates after 16 weeks were 40.29% and 39.63%, respectively, followed by HCl solution, and the degradation performance of CA tow was better than that of film. After 16 weeks of degradation in river water, seawater and homemade seawater, all the weight loss rates were less than 3%. In summary, this study illustrated that the environmental acidity, basicity and high concentration of inorganic salts had a critical promotion effect on the non-enzymatic hydrolysis of CA, whereas the number and type of microorganisms were the key factors affecting the biodegradation of CA. |
| first_indexed | 2024-03-09T01:43:42Z |
| format | Article |
| id | doaj.art-194694a253d44216a08419e702178098 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T01:43:42Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-194694a253d44216a08419e7021780982023-12-08T15:24:13ZengMDPI AGPolymers2073-43602023-11-011523450510.3390/polym15234505Degradation Characteristics of Cellulose Acetate in Different Aqueous ConditionsJiao Tan0Yinchun Liang1Lihui Sun2Zhanping Yang3Jingjing Xu4Dejun Dong5Huan Liu6State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, Nanchang 330047, ChinaNantong Cellulose·Fibers Company Co., Ltd., Nantong 226008, ChinaNantong Cellulose·Fibers Company Co., Ltd., Nantong 226008, ChinaNantong Cellulose·Fibers Company Co., Ltd., Nantong 226008, ChinaNantong Cellulose·Fibers Company Co., Ltd., Nantong 226008, ChinaNantong Cellulose·Fibers Company Co., Ltd., Nantong 226008, ChinaState Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, Nanchang 330047, ChinaCellulose acetate (CA) is widely used in cigarette filters and packaging films, but due to its acetylation, it is difficult to degrade in the natural environment, and the problem of pollution has become a serious challenge. Understanding the degradation behavior and performance of CA in different environments is the basis and prerequisite for achieving its comprehensive utilization and developing efficient degradation methods. In this study, we investigated the degradation performance of CA in different aqueous environments to evaluate the effects of pH, salinity and microorganisms on CA degradation. The CA tows and films were immersed in HCl, NaOH solution, river water, seawater or homemade seawater for 16 weeks and the degradation mechanism was investigated by the changes in weight loss rate, degree of substitution, hydrophilicity, molecular structure and surface morphology. The results showed that the degradation of CA tow and film were the fastest in NaOH solution; the weight loss rates after 16 weeks were 40.29% and 39.63%, respectively, followed by HCl solution, and the degradation performance of CA tow was better than that of film. After 16 weeks of degradation in river water, seawater and homemade seawater, all the weight loss rates were less than 3%. In summary, this study illustrated that the environmental acidity, basicity and high concentration of inorganic salts had a critical promotion effect on the non-enzymatic hydrolysis of CA, whereas the number and type of microorganisms were the key factors affecting the biodegradation of CA.https://www.mdpi.com/2073-4360/15/23/4505cellulose acetatedifferent aqueous conditionsdegradation |
| spellingShingle | Jiao Tan Yinchun Liang Lihui Sun Zhanping Yang Jingjing Xu Dejun Dong Huan Liu Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions Polymers cellulose acetate different aqueous conditions degradation |
| title | Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions |
| title_full | Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions |
| title_fullStr | Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions |
| title_full_unstemmed | Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions |
| title_short | Degradation Characteristics of Cellulose Acetate in Different Aqueous Conditions |
| title_sort | degradation characteristics of cellulose acetate in different aqueous conditions |
| topic | cellulose acetate different aqueous conditions degradation |
| url | https://www.mdpi.com/2073-4360/15/23/4505 |
| work_keys_str_mv | AT jiaotan degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT yinchunliang degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT lihuisun degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT zhanpingyang degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT jingjingxu degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT dejundong degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions AT huanliu degradationcharacteristicsofcelluloseacetateindifferentaqueousconditions |