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Title:
POLYLACTIC ACID 3D PRINTING MATERIAL AND WIRE PREPARED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2019/085523
Kind Code:
A1
Abstract:
The present invention discloses a polylactic acid 3D printing material and a wire prepared therefrom. The polylactic acid 3D printing material comprises the following components: (a) 98.0-100 parts of polylactic acid; and (b) 0-2.0 parts of a processing aid, the weight content of a dextroisomer of the polylactic acid is 0.3%-5% on the basis of the total weight of the entire polylactic acid. The structure of the polylactic acid 3D printing material satisfies the following relationship: 0°C ≤ Tx-Ty ≤ 60°C, where Tx is a maximum weight loss rate temperature of the polylactic acid 3D printing material, and Ty is an extrapolated initial decomposition temperature of the polylactic acid 3D printing material. The present invention discovered through research that when the structure of the polylactic acid 3D printing material satisfies the following relationship: 0°C ≤ Tx-Ty ≤ 60°C, the polylactic acid 3D printing material has a wire diameter range of ≤ 0.12 cm and a wire diameter relative deviation of < 5% when a pulling extrusion speed is 45 Kg/h and an extruded wire diameter is 1.75 cm, thereby exhibiting excellent wire extrusion stability.

Inventors:
XIONG, Kai (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
YUAN, Zhimin (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
CAI, Tongmin (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
HUANG, Xianbo (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
ZENG, Xiangbin (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
JIAO, Jian (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
LU, Changli (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
YANG, Hui (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
MAI, Kaijin (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
DONG, Xueteng (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
Application Number:
CN2018/092801
Publication Date:
May 09, 2019
Filing Date:
June 26, 2018
Export Citation:
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Assignee:
KINGFA SCI. & TECH. CO., LTD. (No.33 Kefeng Road, Science CityHi-Tech Industrial Development Zon, Guangzhou Guangdong 3, 510663, CN)
ZHUHAI WANGO CHEMICAL CO., LTD. (No.177 Petrochemical Road, Nanshui Town Jinwan Distric, Zhuhai Guangdong 0, 519050, CN)
SHANGHAI KINGFA SCI & TECH CO (No.88 Kangyuan Rd, Zhujiajiao Industrial Park Qingpu District, Shanghai 4, 201714, CN)
International Classes:
C08L67/04; B33Y70/00; C08K5/20; C08L83/04
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (1501-02, Dongbao Building 767 Dongfengdong Road, Yuexi, Guangzhou Guangdong 0, 510600, CN)
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