A kind of polyolefin composite material with good appearance for 3D printing and preparation method thereof
A technology of 3D printing and composite materials, which is applied in the field of polyolefin composite materials with good appearance and its preparation, which can solve the problems of easy scratches on the surface of products and poor appearance
Active Publication Date: 2021-07-30
SHANGHAI KINGFA SCI & TECH +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The surface of 3D printed products is easily affected by scratches, resulting in a bad appearance. However, since most 3D printed products are printed by high-flow thermoplastic resin through FDM process, the surface of the product is particularly prone to scratches during reagent use, transportation and storage. mark
Method used
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[0046] The present invention will be further described below in conjunction with the accompanying drawings.
[0047] When the appearance aid is an appearance improving agent, the raw materials of embodiments 1 to 3 and comparative examples 1 to 2 are as follows:
[0048] The polypropylene is EP548R from China Shipping and Shell, with a melt index of 30g / 10min;
[0049] Polylactic acid is selected from polylactic acid 6, produced by Shanghai Celluloid Factory;
[0050] Production of fiberglass boulder groups;
[0051] Maleic anhydride grafted polypropylene is self-made in the laboratory, and the grafting rate is 0.88%;
[0052] Self-synthesis of appearance improving agent; trifluoropropene and trichlorosilane react polymer according to a certain molar ratio of 1:12;
[0053] Albemarle EBS is selected as processing aid
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Abstract
The invention discloses a polyolefin composite material with good appearance for 3D printing and a preparation method thereof. The composite material comprises the following components and parts by weight: 70-95 parts of polypropylene, 15-40 parts of polylactic acid, compatibilization 0-20 parts of additives, 0.2-2 parts of appearance additives, 0.2-2 parts of heat stabilizers and 0.2-2 parts of processing aids. The good-looking polyolefin composite material of the invention can make 3D printing products have good appearance effects.
Description
technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a good-looking polyolefin composite material for 3D printing and a preparation method thereof. Background technique [0002] Rapid prototyping technology, also known as 3D printing technology, was born in the late 1980s and is a high-tech manufacturing technology based on material accumulation method. It is a revolutionary technology that subverts traditional manufacturing methods, and is hailed as another great invention after the steam engine, computer and the Internet. An important branch of 3D printing is personal printing that emerged around 2008. The vast majority of personal 3D printers use FDM (Fused Deposition Modeling) to complete printing. The basic principle of this technology is to transfer the thermoplastic polymer filament (matching diameters of the current mainstream printers are 1.75mm and 3mm) to the high temperature end by means of gears to melt t...
Claims
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IPC IPC(8): C08L23/12C08L51/06C08L67/04C08L77/06C08K5/134C08K5/17C08K5/20C08K7/14B33Y70/10
CPCB33Y70/00C08L23/12C08L2205/03C08L2205/035C08L67/04C08L51/06C08L77/06C08K7/14C08K5/17C08K5/20C08K5/1345
Inventor 卢先博杜赏王海霞袁绍彦夏建盟黄河生
Owner SHANGHAI KINGFA SCI & TECH