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Shape memory resin material for 3D printing, and preparation method and application thereof

A technology of 3D printing and resin materials, applied in the direction of additive processing, rayon manufacturing, single-component polyester rayon, etc., can solve the problems of inability to shape arbitrarily, thickness, bending stiffness, lack of elastic fixation and so on. Absorb deformation performance and other issues, achieve the effect of low cost and simple preparation process

Inactive Publication Date: 2017-06-13
艾伯尔三氐打印技术(重庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material exhibits excellent impact strength and creep resistance, but lacks elastic terms to fix and absorb deformation
CN101260220A discloses a kind of blend polymer shape memory resin material and preparation method thereof, although this invention adopts elastic polymer (polyurethane elastomer) and transformation phase polymer (polycaprolactone) blend composition, but shape memory transition temperature At 51.1-60.4°C, it cannot be arbitrarily shaped, and multiple sheets can be stacked arbitrarily. It is difficult to adjust the thickness and bending stiffness. The shape memory effect of temperature control is not ideal. Especially when used in the field of human medical treatment, it is difficult to achieve a good shape memory transition temperature if it is too high. It is extremely limited in the range that the human body can tolerate

Method used

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  • Shape memory resin material for 3D printing, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Formula of polymer temperature-controlled shape memory resin material

[0023] 70 parts by weight of polycaprolactone, 5 parts by weight of polyurethane, 5 parts by weight of inorganic filler (calcium silicate), 2 parts by weight of crosslinking agent (benzoyl peroxide), surfactant (sodium laurylalanine) ) 0.5 parts by weight.

[0024] 2. Preparation method of polymer temperature-controlled shape memory resin material

[0025] Polycaprolactone, polyurethane, inorganic filler, cross-linking agent and surfactant are cross-linked and copolymerized according to the proportion of the formula, so that the molecular weight of the polymer reaches 20,000 to 50,000, and then the polymer is heated, melted, spun and formed, and water After cooling and solidifying, 3D printing monofilaments are made, wherein the drawing speed of spinning and forming is 30-90 rpm, the spinning temperature is 80-160°C, and the filament-out temperature is 80-130°C.

Embodiment 2

[0027] 1. Formula of polymer temperature-controlled shape memory resin material

[0028] 95 parts by weight of polycaprolactone, 5 parts by weight of polyurethane, 4.5 parts by weight of inorganic filler (talcum powder), 1.5 parts by weight of crosslinking agent (benzoyl peroxide), surfactant (sodium laurylaminopropionate) 1 part by weight.

[0029] 2. Preparation method of polymer temperature-controlled shape memory resin material

[0030] Compared with the preparation method of Example 1, only the ratio of raw materials is different.

Embodiment 3

[0032] 1. Formula of polymer temperature-controlled shape memory resin material

[0033] 80 parts by weight of polycaprolactone, 5 parts by weight of polyurethane, 5 parts by weight of inorganic filler (diatomaceous earth), 2.5 parts by weight of crosslinking agent (benzoyl peroxide), surfactant (dodecyl dimethylene sodium carbamate) 1.5 parts by weight.

[0034] 2. Preparation method of polymer temperature-controlled shape memory resin material

[0035] Compared with the preparation method of Example 1, only the ratio of raw materials is different.

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Abstract

The invention relates to a shape memory resin material for 3D printing, and a preparation method and application thereof. The resin material is prepared from the following raw materials in parts by weight: 70-95 parts of polycaprolactone, 4.5-5.5 parts of polyurethane, 4.5-5.5 parts of inorganic filler, 1.5-2.5 parts of crosslinking agent and 0.5-1.5 parts of surfactant. The shape memory resin material for 3D printing has a shape memory function in the presence of warm water; a medical product prepared from the shape memory resin material can be taken down from and put on a human body at a low human body tolerable temperature according to needs, the thickness is adjustable, and the flexural rigidity can be adjusted by changing the thickness of a formed film; meanwhile, the shape memory resin material can be shaped randomly by being soaked at 50 DEG C or below, being blown by a hot-air fan and being irradiated with near infrared light; and after being subjected to low-temperature treatment at 50 DEG C or below, multiple polymer films can be superposed randomly, thereby dimensionally forming a whole.

Description

technical field [0001] The invention relates to a temperature-controlled shape-memory polymer material and a preparation method thereof, in particular to a 3D printing shape-memory resin material, a preparation method and an application thereof. Background technique [0002] 3D printing is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. 3D printing integrates cutting-edge technologies in many fields such as digital modeling technology, electromechanical control technology, information technology, material science and chemistry. It is a kind of rapid prototyping technology and is known as the core technology of the "third industrial revolution". In recent years, the 3D printing industry has received more and more attention at home and abroad, and will become the next sunrise industry with broad development prospects. [0003] 3D printing manufacturing technology is mainly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L75/04C08K3/34C08K7/14C08K5/14D01F6/92D01F1/10B33Y70/00
CPCC08L67/04B33Y70/00C08L2203/12D01F1/10D01F6/92
Inventor 杨陈
Owner 艾伯尔三氐打印技术(重庆)有限公司
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