Mandarin:
玻璃化转变温度 (bō lí huà zhuǎn biàn wēn dù)

Explanation in English Language (EN):
The glass transition temperature (Tg) is a crucial property of amorphous polymers. It represents the temperature at which an amorphous polymer transitions from a hard, glassy state to a soft, rubbery state. Below Tg, the poly 3 mer chains have limited mobility and the material is rigid and brittle. Above Tg, the polymer chains gain more freedom of movement, and the material becomes more flexible and pliable. Tg is influenced by factors such as the polymer's chemical structure, molecular weight, and the presence of plasticizers.

Explanation in Mandarin (ZH):
玻璃化转变温度 (Tg) 是非晶态聚合物的一个重要特性。它表示非晶态聚合物从坚硬的玻璃态转变为柔软的橡胶态的温度。低于 Tg，聚合物链的流动性有限，材料坚硬易碎。高于 Tg，聚合物链获得更大的运动自由度，材料变得更柔韧。Tg 受聚合物化学结构、分子量和增塑剂的存在等因素的影响。

Back to Glossary

International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.