废旧聚乙烯醇缩丁醛的回收再利用研究进展

王梦碟; 柴丽琴; 周岚; 周国轩; 刘国金

废旧聚乙烯醇缩丁醛的回收再利用研究进展

王梦碟¹,
柴丽琴¹,
周岚^{1, 2},
周国轩³,
刘国金^1, ,

1.
浙江理工大学先进纺织材料与制备技术教育部重点实验室, 杭州 310018
2.
浙江省现代纺织技术创新中心, 浙江绍兴 312000
3.
浙江沃莱菲装饰材料有限公司

基金项目: 2023年柯桥区产业关键技术攻关项目(项目序号：304)

详细信息

通讯作者:
刘国金，博士，副教授，硕士生导师，研究方向为纺织品后整理。　E-mail: guojin0618@zstu.edu.cn

中图分类号: (TB332)
计量
- 文章访问数: 54
- HTML全文浏览量: 25
- 被引次数: 0
出版历程
- 收稿日期: 2024-01-16
- 录用日期: 2024-03-20
- 网络出版日期: 2024-04-10

Research progress on the recycling and reuse of waste polyvinyl butyral

1.
Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
2.
Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing, Zhejiang 312000, China
3.
Zhejiang Wall-life decoration Co., Ltd, Shaoxing, Zhejiang 312000, China

Funds: 2023 Key technology projects in Keqiao District (No.304)

摘要

摘要: 聚乙烯醇缩丁醛(PVB)树脂具有优异的成膜性、光学透明度及较强的柔韧性、弹性、粘结性、抗冲击等性能，广泛应用于陶瓷花纸、涂料、粘合剂、汽车挡风玻璃夹层材料、太阳能电池封装材料等领域，但PVB呈现不可降解特性，大量的废旧PVB树脂产出极易造成资源浪费和环境污染。如何实现废旧PVB树脂的回收和再利用是当前工程领域内的研究热点。本文简要介绍了PVB树脂的特性及废旧PVB树脂的来源，详细阐述了废旧PVB树脂的回收技术，例举了再生PVB树脂在过滤材料、吸附材料、增韧材料、发泡材料以及电化学材料中的应用现状，综述内容为废旧PVB树脂的回收再利用提供了参考。
- 废旧PVB树脂 /
- 不可降解 /
- 回收 /
- 再利用 /
- 应用现状
Abstract: Polyvinyl butyral (PVB) resin has excellent film-forming properties, optical transparency, strong flexibility, elasticity, adhesion, and impact resistance. It is widely used in ceramic flower paper, coatings, adhesives, automotive windshield interlayer materials, solar cell packaging materials, and other fields. However, PVB exhibits non degradable characteristics, and the production of a large amount of waste PVB resin is prone to resource waste and environmental pollution. How to achieve the recovery and reuse of waste PVB resin is a research hotspot in the current engineering field. This article briefly introduces the characteristics of PVB resin and the sources of waste PVB resin, elaborates on the recycling technology of waste PVB resin, and provides examples of the application status of regenerated PVB resin in filtration materials, adsorption materials, toughening materials, foaming materials, and electrochemical materials. The review provides a reference for the recycling and reuse of waste PVB resin.
- waste PVB resin /
- non-degradable /
- waste recycling /
- reuse /
- application status

HTML全文

图 1 PP与不同配比的PP/r-PVB/POE-g-MA共混物的缺口冲击强度柱状图^[34]

Figure 1. Influence of ratio of r-PVB/POE-g-MA masterbatch on notched Izod impact strength of PP and PP/r-PVB/POE-g-MA blends^[34]

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图 2 PA6与不同配比PA6/r-PVB/POE-g-MA共混物的缺口冲击强度柱状图^[35]

Figure 2. Influence of ratio of r-PVB/POE-g-MA masterbatch on notched Izod impact strength of PA6 and PA6/r-PVB/POE-g-MA blends ^[35]

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图 3 不同r-PVB含量的PA-GF的摩擦系数(CoF)^[45]

Figure 3. Coefficient of friction (CoF) of PA-GF with different r-PVB content^[45]

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图 4 不同r-PVB含量的PA-GF的质量损失(B)和肖氏硬度(海岸D)^[45]

Figure 4. mass loss and shore D hardness of PA-GF with different r-PVB content^[45]

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图 5 PVB的化学回收及其电纺纳米纤维的制备流程图^[50]

Figure 5. Chemical recovery of PVB and preparation process of electrospun nanofibers^[50]

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图 6 实际使用性能结果(8小时内过滤效率变化)^[53]

Figure 6. Actual use performance results (change of filtration efficiency within 8 hrs)^[53]

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图 7 S. aureus 和 E. coli在PVB-AVE-0%时的扫描电镜图像(a,b), S. aureus 和 E. coli在PVB-AVE-6%时的扫描电镜图像(c,d)^[53]

Figure 7. SEM images of S. aureus and E. coli on PVB-AVE-0%(a,b), SEM images of S. aureus and E. coli on PVB-AVE-6%(c,d)^[53]

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图 8 纤维素和废旧PVB复合纳米纤维的制备示意图^[54]

Figure 8. Figure 8 Preparation schematic diagram of cellulose and waste PVB composite nanofibers^[54]

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图 9 纤维素材料制备的纳米纤维(a,b,c),纤维素/废旧PVB复合材料制备的纳米纤维(d,e,f)的形态^[54]

Figure 9. Morphology of nanofibers (a, b, c) prepared from cellulose materials and nanofibers (d, e, f) prepared from cellulose/ waste PVB composite materials^[54]

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图 10 纳米纤维网吸声系数α的变化规律^[55]

Figure 10. The courses of sound absorption coefficient α of chosen nanofibrous webs^[55]

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图 11 碳纳米纤维(CNF)和含氮掺杂的碳纳米纤维(N-CNFO)的制备示意图^[56]

Figure 11. Preparation schematic of carbon nanofibers (CNF) and nitrogen doped carbon nanofibers (N-CNFO) Figure^[56]

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图 12 N-CNFO在1 C下的长期循环稳定性^[56]

Figure 12. Long term cyclic stability of N-CNFO at 1 C.^[56]

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图 13 用于锂离子电池的还原硅和硅/碳复合材料的合成方法示意图^[58]

Figure 13. Schematic of the synthesis method of reduced silicon and silicon/carbon composites for lithium-ion^[58]

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图 14 R-Si、R-Si@ PVB 40和R-Si@ PVB 100在420 mA g⁻¹的电流密度下的循环性能^[58]

Figure 14. performances of R-Si, R-Si@PVB40, and R-Si@PVB100 at a current density of 420 mA g^−1[58]

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表 1 四种不同的废旧PVB回收技术的优缺点

Table 1. Advantages and disadvantages of four different waste PVB recycling technologies

The source of waste PVB	Recycling technology for waste PVB	Technical advantages	Technical disadvantages
	Mechanochemical separation technology (wet process)	1. Water based media can effectively wash glass and other pollutants, reducing dust. 2. The filtrate can be reused as a separation medium to achieve recycling. 3. The application of water or some environmentally friendly solvents can reduce pollution.	1. There are many types of organic solvents, most of which are toxic and prone to causing environmental pollution. 2. The noise generated during the mechanical separation process is relatively high.
80% of the world's high viscosity waste PVB film comes from safety glass laminates	Mechanical thermodynamic separation technology (dry process)	1. Avoiding the application of harmful organic solvents.	1. It is difficult to remove and filter the glass debris after mechanical separation, and more glass dust is generated. 2. This process requires strict temperature control, as PVB will decompose and lead to a decrease in recovery rate. 3. The noise is loud.
	Mechanochemical separation technology assisted thermodynamics (dry wet combined process)	1. The dual effects of chemistry and thermodynamics result in relatively less noise generated during the separation process. 2. The combination method reduces the viscosity between PVB and glass, weakens the mechanical properties, and improves the separation efficiency. 3. There is more hope to achieve large-scale recycling of waste PVB.	1. The cost is relatively high. 2. The process flow is more complex.
The remaining 20% or so come from low viscosity waste PVB colored plastics in adhesives, coatings, and ceramic flower paper	Solvent dissolution vacuum distillation technology	1. This method can effectively decolorize the blue black PVB film into a colorless film. 2. The reagents, pigments, and plasticizers after decolorization can be recycled and reused. High recycling efficiency and low cost.	1. The vacuum distillation method generates high energy consumption during heating, takes a long time, and has a complex process. 2. Pressure is difficult to control stably, and improper pressure control can lead to distillation failure and incomplete purification.

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