Preparation method of diatom slow-rebound material
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A technology of slow rebound and diatoms, which is applied in the field of preparation of diatom slow rebound materials, can solve problems such as fire hazards, and achieve the effects of improving thermal stability, increasing viscosity, and simple process
Pending Publication Date: 2020-12-15
SHENZHEN KAIYUAN CHUANGZHAN IND CO LTD
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Problems solved by technology
And this material is flammable, and there is a fire hazard in the use of automobiles.
Method used
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Embodiment 1
[0016] A preparation method of diatom slow rebound material, comprising the following steps:
[0017] Step 1, select the following raw materials according to weight ratio: 0.3 parts of diatomite, 100 parts of polyether polyol (Actcol LR-00), 4 parts of water, 1.2 parts of silicone surfactant (L5800), 1.2 parts of silicone surfactant ( L-627) 0.5 parts, delayed gel catalyst (Dabco 33LV) 0.5 parts, diphenylmethane diisocyanate 40-50 parts;
[0018] Step 2. Put the diatomite selected in step 1 into a ball mill for grinding to obtain diatom powder of 60-80 μm;
[0019] Step 3, merging the diatom powder obtained in step 2 with the water selected in step 1 and stirring evenly as a foaming agent;
[0020] Step 4. Blend the foaming agent obtained in step 3 with the polyether polyol and diphenylmethane diisocyanate selected in step 1, and put it in a heating room for foaming. The water is polyether polyol and diphenylmethane diisocyanate. Methane diisocyanate reacts to produce foamin...
Embodiment 2
[0024] A preparation method of diatom slow rebound material, comprising the following steps:
[0025] Step 1. Select the following raw materials according to weight ratio: 3 parts of diatomaceous earth, 100 parts of polyether polyol (Actcol LR-03), 3 parts of water, 3 parts of glycerin, 1 part of silicone surfactant (L-627), 0.2 parts of delayed gel catalyst, 50 parts of diphenylmethane diisocyanate;
[0026] Step 2. Put the diatomite selected in step 1 into a ball mill for grinding to obtain diatom powder of 60-80 μm;
[0027] Step 3, merging the diatom powder obtained in step 2 with the water selected in step 1 and stirring evenly as a foaming agent;
[0028] Step 4. The foaming agent obtained in step 3 is fused with the glycerin, polyether polyol and diphenylmethane diisocyanate selected in step 1, and put into a heating room for foaming. The water is polyether polyol and diphenylmethane diisocyanate. Phenylmethane diisocyanate reacts to produce foaming agent for polyuret...
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Abstract
The invention belongs to the technical field of preparation of interior decorations, and particularly relates to a preparation method of a diatom slow rebound material. The method comprises the following steps: selecting 0.3-3 parts by weight of diatomite, 100 parts by weight of polyether polyol, 3-4 parts by weight of water, 0-3 parts by weight of silicone oil, 1-1.7 parts by weight of organosilicon surfactant, 0.2-0.5 part by weight of delayed gel catalyst and 40-50 parts by weight of diphenylmethane diisocyanate; when polyether polyol and diphenylmethane diisocyanate are fused, water and diatom powder are added at the same time, the water serves as a foaming agent for producing polyurethane foam through reaction of the polyether polyol and the diphenylmethane diisocyanate, and a large amount of toxic gas and peculiar smell can overflow in the production process of the polyurethane foam; diatom powder is used as an adsorbent for removing the toxic gas and peculiar smell, so the preparation process is free of peculiar smell, and the prepared product is also free of peculiar smell; and a small amount of diatom powder is blended into the diatom slow-rebound material, so the heat deformation temperature is increased, the bending strength is increased, the decomposition rate is reduced, and the diatom slow-rebound material has non-flammable performance.
Description
technical field [0001] The invention belongs to the technical field of preparation of car interior decorations, and in particular relates to a preparation method of a diatom slow-rebound material. Background technique [0002] Existing car interior accessories, such as various back cushions, seat cushions, etc., are often filled with elastic materials such as foam, fiber, and latex, which can greatly conform to the shape of the coating layer, reduce the stress on the concentrated point, and avoid Localized build-up and spikes for enhanced comfort. However, the preparation process of this kind of material often produces a large amount of toxic gas or peculiar smell, and even some foam materials are not up to standard, and often emit toxic gas with peculiar smell in hot summer, and bring harm to the health of passengers at the same time. This requires manufacturers to invest a lot of cost in purchasing air purification equipment to meet waste emission standards and at the sam...
Claims
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Application Information
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