Nylon raw material of medical non-toxic dust-free 3D printing isolation eyeshade and manufacturing method of medical non-toxic dust-free 3D printing isolation eyeshade

Abstract

The invention discloses a nylon raw material of a medical non-toxic dust-free 3D printing isolation eyeshade and a manufacturing method of the nylon raw material. The nylon raw material is composed ofthe following two parts in parts by weight: 20 parts of TPE-g-MAH modified polymer and 80 parts to 85 parts of nylon 12; the TPE-g-MAH modified polymer is specifically prepared by the following stepsof: taking 10-12 parts by weight of isobutene gas as a basic raw material, sequentially carrying out terminal tertiary chlorination treatment, terminal alkenyl treatment and block polymerization to obtain an alkenyl-terminated polybutylene polymer; and based on the alkenyl-terminated polybutylene polymer, carrying out modified polymerization on 10-12 parts by weight of ethylene propylene diene monomer and 0.15-0.2 part by weight of maleic anhydride to finally obtain the TPE-g-MAH modified polymer. The method is non-toxic, harmless, free of dust and free of toxic and harmful components, and incineration products are non-toxic.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a nylon raw material for medical non-toxic and dust-free 3D printing isolation goggles and a manufacturing method thereof. Background technique [0002] Medical isolation goggles are used to prevent unpredictable damage to the eyes caused by blood, liquid medicine, certain viruses and other toxic liquids or virus vectors that cause damage to the skin. It can prevent the impact of objects on the eyes during close-up surgery. The internal space of the eye mask should be large enough to be used by doctors who wear myopia glasses, and the lens part must have anti-fog function. [0003] However, there are several pain points in the existing technology that correspond to the actual working conditions, namely: 1. If my country encounters a severe epidemic this year, plastic products need at least half a month to open the mold, and it is very likely that they cannot meet the s...

AI Technical Summary

Problems solved by technology

[0003] However, there are several pain points in the existing technology that correspond to the actual working conditions, namely: 1. If my country encounters a severe epidemic this year, plastic products need at least half a month to open the mold, and it is very likely that they cannot meet the surge in a short period of time. production needs of medical supplies

2. At present, most of the products on the market are made of plastic products (such as PE, PVC), which are generally added with plasticizer DEHP. If they are used for a long time in an environment with high humidity, they will endanger the health and safety of protectors and medical staff.

3. Add stabilizers containing metal ions, long-term use may cause metal ions to harm the patient's body

4. After use, incineration will produce toxic dioxin gas

[0004] It can meet the requirements of rapid mold opening and short-term (within two days) sprint production to meet the necessary requirements of medical isolation goggles. At present, 3D laser printing is the most mature and available method. At present, the more mature and better material performance is nylon-based 3D printing products, but it has several fatal flaws in the medical field, namely: 1. It also contains toxic and harmful adhesives or plasticizers

2. The material is polar and easy to absorb dust. At the same time, because the raw materials are mostly a variety of powders, and the sintering degree is not high, the dust itself will escape

4. After use, recycling and incineration will also produce toxic dioxin gas