High-tensile-strength cotton stalk 3D printing material
A high tensile strength, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of poor performance such as impact resistance, and achieve the effects of low cost, easy industrial production, and broad market prospects
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[0074] The preparation method of the high tensile strength cotton straw 3D printing material includes the following steps:
[0075] S1: Crush the selected straws and pass through an 80-100 mesh sieve to obtain a powder. The powder is dried at 83-94°C for 2-3 hours and the moisture content is controlled below 0.05% to obtain the primary raw material cotton straw powder;
[0076] S2: Add polylactic acid, sodium hexapolyphosphate, butyl acetate, polypropylene resin, maleic anhydride grafted EPDM rubber, and a specific synthetic agent to the primary raw material cotton straw powder prepared in step S1, and the temperature is increased to 186- 200℃, stirring and melting at 100-300r / min for 2.2-4.3h, and then cooling to room temperature to prepare modified straw 3D printing secondary material;
[0077] The preparation method of the specific synthetic agent includes the following steps:
[0078] S21: Mix the generating agent, coupling agent a, compatibilizer, and antioxidant to 117-128°C, an...
Embodiment 1
[0089] A high tensile strength cotton straw 3D printing material, in parts by weight, including the following raw materials: 100 parts of cotton straw powder, 38 parts of polylactic acid, 14 parts of sodium hexapolyphosphate, 13 parts of butyl acetate, and polypropylene resin 10 parts, maleic anhydride grafted EPDM rubber 12 parts, specific synthetic agent 20 parts, starch synthetic agent 12 parts;
[0090] The specific synthetic agent is based on parts by weight and includes the following raw materials: 16 parts of modifier, 14 parts of generating agent, 12 parts of coupling agent a, 3 parts of surfactant, 14 parts of compatibilizer, 12 parts of plasticizer a , 10 parts of antioxidant, 7 parts of coagulant, 5 parts of terminator;
[0091] The regulator is the regulator ACR;
[0092] The generating agent is an aerosol generating agent;
[0093] The coupling agent a is coupling agent kh570;
[0094] The surfactant is fatty alcohol polyoxyethylene ether sodium sulfate;
[0095] The compa...
Embodiment 2
[0125] A high tensile strength cotton straw 3D printing material, in parts by weight, including the following raw materials: 78 parts of cotton straw powder, 30 parts of polylactic acid, 10 parts of sodium hexapolyphosphate, 12 parts of butyl acetate, and polypropylene resin 9 parts, 8 parts of maleic anhydride grafted EPDM rubber, 16 parts of specific synthetic agent, 7 parts of starch synthetic agent;
[0126] The specific synthetic agent is based on parts by weight and includes the following raw materials: 13 parts of modifier, 10 parts of generating agent, 9 parts of coupling agent a, 2 parts of surfactant, 13 parts of compatibilizer, 8 parts of plasticizer a , 8 parts of antioxidant, 6 parts of coagulant, 4 parts of terminator;
[0127] The regulator is the regulator ACR;
[0128] The generating agent is an aerosol generating agent;
[0129] The coupling agent a is coupling agent kh570;
[0130] The surfactant is fatty alcohol polyoxyethylene ether sodium sulfate;
[0131] The com...
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