polyesters

简明释义

英[ˈpɒl.i.ɛs.təz]美[ˈpɑː.li.ˌɛs.tɚz]

n. 多元酯；聚脂（polyester 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.Many of these polyesters are blended with starch based polymers for cost competitive biodegradable plastics applications.

许多这些聚酯与淀粉混合应用的成本竞争力的生物降解塑料的聚合物。

2.This article discusses the different types, structure and functions of these polyesters engineering plastics as well as their applications.

本文集中就聚酯类工程塑料合金的品种、结构和性能关系，探讨相关的制备要点，并介绍其典型产品的应用特点。

3.Aliphatic polyesters are not used for fiber production, because of their low melting points.

脂肪族聚酯没有用来生产纤维，可能是熔点低的缘故。

4.Polyesters are sometimes refereed to as oil-free alkyds.

通常情况下，聚酯也叫无油醇酸。

5.Polyesters are strong, colourfast, and resistant to corrosion and chemical attack but tend to build up a static electric charge.

聚酯很坚韧、不褪色、耐腐蚀和抗化学作用，但容易积累静电。

6.The thermal properties of polyesters were investigated with TGA, DSC and polarizing microscope.

聚酯的热性质以TGA、DSC、热台偏光显微镜研究。

7.The prepolymers most frequently used for the preparation of polyurethanes are either polyesters or polyethers.

最常用于制备聚氨酯预聚物要么是聚酯或聚醚。

8.Many sportswear brands use polyesters to enhance moisture-wicking properties.

许多运动服品牌使用聚酯纤维来增强排湿性能。

9.Recycled polyesters are becoming popular in sustainable fashion.

回收的聚酯纤维在可持续时尚中越来越受欢迎。

10.The use of polyesters in insulation materials helps keep homes warm.

聚酯纤维在隔热材料中的使用有助于保持家庭温暖。

11.The durability of polyesters makes them ideal for outdoor furniture.

聚酯纤维的耐用性使其非常适合户外家具。

12.Some people prefer clothes made from polyesters because they are easy to care for.

有些人喜欢由聚酯纤维制成的衣服，因为它们易于护理。

作文

Polyesters are a group of synthetic materials that have become increasingly popular in various industries due to their versatility and durability. These materials, primarily derived from petrochemicals, are created through a process known as polymerization, where small molecules called monomers are chemically bonded together to form long chains. The most common type of polyester is polyethylene terephthalate (PET), which is widely used in the production of plastic bottles, clothing, and even food packaging. The unique properties of polyesters (聚酯) make them suitable for a wide range of applications, from textiles to engineering products.One of the most significant advantages of polyesters (聚酯) is their resistance to stretching and shrinking. This characteristic makes them ideal for use in fabrics, where they can maintain their shape and appearance even after repeated washing and wearing. Additionally, polyesters (聚酯) are known for their quick-drying properties, which is why many athletic clothing brands utilize this material in their products. The ability to wick moisture away from the body keeps athletes comfortable during intense workouts.In addition to their use in the textile industry, polyesters (聚酯) also play a crucial role in the manufacturing of plastic products. PET, for instance, is extensively used for making beverage bottles because it is lightweight, strong, and recyclable. The recycling process for polyesters (聚酯) is relatively simple, allowing for the transformation of used plastic into new products, thus contributing to sustainability efforts. Many companies are now focusing on creating closed-loop systems where polyesters (聚酯) can be reused multiple times, reducing waste and environmental impact.However, the production and disposal of polyesters (聚酯) also raise environmental concerns. Since they are derived from fossil fuels, their production contributes to greenhouse gas emissions. Moreover, when polyesters (聚酯) are disposed of improperly, they can contribute to plastic pollution, which poses a significant threat to marine life and ecosystems. This has led to increased research into biodegradable alternatives and the development of bio-based polyesters (聚酯) made from renewable resources such as corn starch or sugarcane.The future of polyesters (聚酯) appears promising as innovations continue to emerge in this field. Researchers are exploring ways to enhance the properties of polyesters (聚酯) to make them more environmentally friendly without compromising their performance. For instance, advancements in technology may allow for the creation of polyesters (聚酯) that break down more easily in natural environments, reducing their longevity and impact on ecosystems.In conclusion, polyesters (聚酯) are essential materials in modern society, impacting various sectors from fashion to packaging. While they offer numerous benefits, it is crucial to address the environmental challenges associated with their production and disposal. By investing in sustainable practices and innovative technologies, we can continue to enjoy the advantages of polyesters (聚酯) while minimizing their ecological footprint. The ongoing dialogue around sustainability will ultimately shape the future of polyesters (聚酯) and their role in our lives.

聚酯是一类合成材料，由于其多功能性和耐用性，在各个行业中变得越来越受欢迎。这些材料主要来源于石化产品，通过一种称为聚合的过程制造而成，在这个过程中，称为单体的小分子通过化学键合在一起，形成长链。最常见的聚酯类型是聚对苯二甲酸乙二醇酯（PET），广泛用于塑料瓶、服装甚至食品包装的生产。聚酯的独特性质使其适用于从纺织品到工程产品的广泛应用。聚酯的一个显著优点是其抗拉伸和收缩的能力。这一特性使其非常适合用于面料，因为即使经过多次洗涤和穿着，它们也能保持形状和外观。此外，聚酯以其快速干燥的特性而闻名，这就是许多运动服装品牌在其产品中利用这种材料的原因。能够将湿气从身体上排走，使运动员在剧烈锻炼期间保持舒适。除了在纺织工业中的应用外，聚酯在塑料产品的制造中也发挥着至关重要的作用。例如，PET因其轻便、坚固且可回收而被广泛用于饮料瓶的制作。聚酯的回收过程相对简单，允许将使用过的塑料转化为新产品，从而有助于可持续发展。许多公司现在专注于创建闭环系统，使得聚酯可以多次重复使用，从而减少浪费和环境影响。然而，聚酯的生产和处置也引发了环境方面的担忧。由于它们来源于化石燃料，其生产会导致温室气体排放。此外，当聚酯被不当处置时，会对海洋生物和生态系统造成重大威胁，导致塑料污染。这促使对可生物降解替代品的研究增加，以及开发基于生物的聚酯，这些聚酯由玉米淀粉或甘蔗等可再生资源制成。聚酯的未来似乎前景光明，因为这一领域的创新不断涌现。研究人员正在探索增强聚酯性能的方法，以使其更加环保，而不影响其性能。例如，技术的进步可能使得创造出更容易在自然环境中降解的聚酯成为可能，从而减少其在生态系统中的持久性和影响。总之，聚酯是现代社会中不可或缺的材料，影响着从时尚到包装的各个领域。虽然它们提供了许多好处，但必须解决与其生产和处置相关的环境挑战。通过投资可持续实践和创新技术，我们可以继续享受聚酯的优势，同时最小化其生态足迹。围绕可持续性的持续对话最终将塑造聚酯及其在我们生活中的角色的未来。