Abstract: In order to address the shortage of raw materials and high product carbon footprint（PCF）for petrochemical polyester resin，the effects of different bio-based monomers，such as ethylene glycol，1，3-propanediol，1，2-propanediol，1，4-butanediol，fumaric acid and 1，4-butanedioic acid on the properties of polyester resin and powder coatings were systematically studied，then the bio-based polyester resin SJ3706B for indoor thermosensitive substrates and SJ3B-6B for indoor matting decoration were synthesized by using these rules.The results showed that the performance of bio-based resin was close to that of petrochemical based resin，and some indicators were better than petrochemical based polyester resin，the PCF of bio-based polyester resin was significantly lower than that of petrochemical based resin.

Key words: bio-based, polyester resin, carbon footprint

摘要： 为应对石化聚酯树脂原材料种类匮乏和高碳足迹的问题。系统研究了不同生物基单体，如生物基乙二醇、 1，3-丙二醇、 1，2-丙二醇、 1，4-丁二醇、富马酸和丁二酸对聚酯树脂和粉末涂料性能的影响规律，并利用这些规律合成了户内热敏基材用生物基聚酯树脂 SJ3706B和户内消光用生物基聚酯树脂 SJ3B-6B。研究结果显示，生物基树脂的性能和石化基树脂性能接近，部分指标优于石化基聚酯树脂，生物基聚酯树脂的碳足迹显著低于石化基树脂。

关键词: 生物基, 聚酯树脂, 碳足迹

CLC Number: 

• TQ630. 4