Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Controlled-release quick-setting functional particles and application thereof in 3D printing cement-based material
The invention provides a controlled-release quick-setting functional particle and application thereof in a 3D printing cement-based material, the controlled-release quick-setting functional particle comprises a core material and a wall material, and the weight part ratio of the core material to the wall material is 2: (1-2); the functional particles are spheroidic, and the contact angle between the functional particles and water is larger than 90 degrees. The 3D printing cement-based material comprises cement, water, functional particles and other common additives. When the functional particles are applied to the preparation process of the high-fluidity cement-based material, as the functional particles are insoluble in water or subjected to hydrophobic treatment, the contact angle between the functional particles and water is larger than 90 degrees, it is guaranteed that the particles cannot be dissolved in advance to release an inner core material, and the cement-based material has good fluidity in the initial preparation stage; along with heat release or microwave heating in the hydration process of the cement-based material or a heat source provided in other modes, the wall material is melted, the core material is released, and short-time regulation and control of the fluidity of the cement-based material are achieved through the core material.
本发明提供了一种控释快凝功能颗粒及其在3D打印水泥基材料中的应用，控释快凝功能颗粒的组成包括芯材和壁材，芯材与壁材的重量份数比为2：(1‑2)；功能颗粒为类球形且功能颗粒与水的接触角大于90°。3D打印水泥基材料包括水泥、水、功能颗粒、其他常见外加剂。本申请的功能颗粒应用在高流动度的水泥基材料配制过程中，由于功能颗粒本身不溶于水或经过疏水处理，使与水接触角大于90°，保证颗粒不会提前溶解释放出内部芯材使得水泥基材料配制初期具有较好的流动性；随着水泥基材料水化过程放热或微波加热或以其他方式提供热源，使壁材熔化、释放出芯材，通过芯材实现对水泥基材料流动性的短时调控。
Controlled-release quick-setting functional particles and application thereof in 3D printing cement-based material
The invention provides a controlled-release quick-setting functional particle and application thereof in a 3D printing cement-based material, the controlled-release quick-setting functional particle comprises a core material and a wall material, and the weight part ratio of the core material to the wall material is 2: (1-2); the functional particles are spheroidic, and the contact angle between the functional particles and water is larger than 90 degrees. The 3D printing cement-based material comprises cement, water, functional particles and other common additives. When the functional particles are applied to the preparation process of the high-fluidity cement-based material, as the functional particles are insoluble in water or subjected to hydrophobic treatment, the contact angle between the functional particles and water is larger than 90 degrees, it is guaranteed that the particles cannot be dissolved in advance to release an inner core material, and the cement-based material has good fluidity in the initial preparation stage; along with heat release or microwave heating in the hydration process of the cement-based material or a heat source provided in other modes, the wall material is melted, the core material is released, and short-time regulation and control of the fluidity of the cement-based material are achieved through the core material.
本发明提供了一种控释快凝功能颗粒及其在3D打印水泥基材料中的应用，控释快凝功能颗粒的组成包括芯材和壁材，芯材与壁材的重量份数比为2：(1‑2)；功能颗粒为类球形且功能颗粒与水的接触角大于90°。3D打印水泥基材料包括水泥、水、功能颗粒、其他常见外加剂。本申请的功能颗粒应用在高流动度的水泥基材料配制过程中，由于功能颗粒本身不溶于水或经过疏水处理，使与水接触角大于90°，保证颗粒不会提前溶解释放出内部芯材使得水泥基材料配制初期具有较好的流动性；随着水泥基材料水化过程放热或微波加热或以其他方式提供热源，使壁材熔化、释放出芯材，通过芯材实现对水泥基材料流动性的短时调控。
Controlled-release quick-setting functional particles and application thereof in 3D printing cement-based material
一种控释快凝功能颗粒及其在3D打印水泥基材料中的应用
FENG PAN (Autor:in) / SHAO LIJING (Autor:in) / LIU QI (Autor:in) / WANG HAOCHUAN (Autor:in) / LIU ZHAOLONG (Autor:in)
06.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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