Biodegradable spinning material and preparation method and application thereof

Abstract

The invention provides a biodegradable spinning material and a preparation method and application thereof and belongs to the technical field of biodegradable materials. The biodegradable spinning material comprises the following preparation raw materials including, by mass, 80-93 parts of chemical-modified PBAT (Poly(butylene adipate terephthalate)), 1-8 parts of PCL (polycaprolactone), 0.5-2 parts of silver nanowire emulsion, 3-11 parts of functional master batch and 0.05-0.2 part of degradation balancing agent, wherein the weight-average molecular weight of the chemical-modified PBAT is 16000 to 38000, and the mass content of silver nanowires in the silver nanowire emulsion is 45% to 60%. The spinning material provided by the invention has the good spinnability and the good strength and is biodegradable, the degradation process can be effectively controlled according to the using requirements of people, a product obtained through spinning of the spinning material is good in breathability and anti-bacterial property, and a certain blocking effect is achieved in terms of clothing materials.

Description

technical field [0001] The invention relates to the technical field of nonwoven materials, in particular to a biodegradable spinning material and its preparation method and application. Background technique [0002] Polyester fiber (POLYESTERFIBERS), commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol, referred to as PET fiber, which belongs to polymer compounds. Invented in 1941, it is currently the largest variety of synthetic fibers. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, high strength and elastic recovery ability, it is durable, wrinkle-resistant, non-ironing, non-sticky, and has excellent textile performance and wearing performance. Polyester fiber has a wide range of uses. It can be purely spun, or blended with natural fibers such as cotton, wool, silk, and hemp, and other chemical fibers. It can wea...

AI Technical Summary

Problems solved by technology

[0003] The raw materials of the polyester industry all over the world come from petroleum so far. The consequences of using a large amount of polyester fibers will inevitably lead to a huge waste of petroleum resources. The problem of white pollution caused by the use of fossil raw materials for synthetic materials also occurs from time to time, especially for disposable products. The use efficiency is low, the disposal rate is high, and the harm to the environment cannot be ignored. In order to reduce the dependence on petroleum resources, especially reduce environmental pollution, and promote the sustainable development of the polyester industry, experts and scholars in various fields are gradually developing biodegradable plastics instead Research work on traditional polyester fiber materials

[0004] The research work on butylene terephthalate / adipate has always been the focus of research in the field of biodegradable materials. The material itself has good spinnability, excellent mechanical properties and elastic properties, and is not easy to pilling Wrinkles, but with the in-depth research in the use process, there are several problems in the actual application of fully biodegradable materials: First, there are still uncontrollable properties, which will decrease with the use time and processing times. Performance, thermal performance, and apparent changes are more obvious, and its dyeing performance is also unstable to a certain extent. In terms of air permeability, there are still certain defects in air resistance because it is a polymer material; the second is that the degradation rate is uncontrollable. , the material is completely biodegradable, but its actual degradation process still cannot be effectively controlled in accordance with the requirements of human use, how to effectively balance the relationship between the molecular weight and performance of the material, and through the evaluation of the extrusion process and spinning process in advance The technical improvement has not been completely resolved; the third is whether the biodegradable spinning material has good air permeability, elasticity, antibacterial property and dyeing performance in the use process. There are also certain technical difficulties; finally, during the polymerization process, due to Water molecules are unavoidable in both the system and the environment, how to reduce the moisture content of the spinning material and how to reduce the impact of moisture on the performance of the spinning material also needs to be solved urgently

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