Clay-based composite material as well as preparation and use methods thereof

A composite material and clay technology, which is applied in the field of waterproof or water-repellent ultra-light clay-based composite materials, can solve the problems of cumbersome operation, inability to carry out secondary processing and transformation due to temperature increase, influence and other problems

Pending Publication Date: 2022-05-06
秦皇岛砥厉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Disadvantages of ultra-light clay: 1. It is not waterproof, and the created works are faced with the difficulty of preservation. In addition to covering them with transparent boxes to avoid dust, only simple waterproof treatment can be carried out on the surface of the works, including applying epoxy crystal glue , smearing varnish, smearing acrylic blending liquid and other methods, these methods can play a certain role in waterproofing to a certain extent, but they all have their shortcomings, and the reflection of the work is stronger than that after applying varnish; Liquid is more difficult, especially some details and complex colors can not be used, etc. This kind of method requires secondary processing and transformation, and it also has a certain impact on the work, and it cannot be permanently waterproof; it restricts ultra-light The scope and field of use of clay; 2. After the ultra-light clay is molded and dried, it cannot be reprocessed and transformed, and it cannot be reprocessed after it is heated.
[0006] The shortcomings of hydrophobic thermoplastics: Thermoplastics can be heated above the melting point, and the operating time at room temperature is about 1 to 2 minutes. At room temperature, the molding needs to be heated repeatedly, and the operation is cumbersome.

Method used

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  • Clay-based composite material as well as preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Put ultra-light clay, PCL (melting point at about 65°C) and POE (melting point at about 66°C) into a high-speed mixer and mix evenly in a high-speed mixer at a temperature of 110°C Blending is carried out, the blending is melt blending, and the blending method is kneading to obtain a waterproof clay-based composite material, which is sealed in a sealed container.

[0043] Test results: Take 3g of the prepared composite material, shape it into a cube of 4cm×2cm×0.5cm, and after drying for 48 hours, heat the product at 300°C for half a minute at the first gear of the heat gun, cool and solidify at room temperature, immerse in water for 24 hours, no change, and dry Then heat the product again at 300°C for half a minute with a heat gun, shape one corner of it at a 90-degree right angle, cool and solidify at room temperature, the 90-degree right angle does not change the angle, and immerse in water for 24 hours, no change.

Embodiment 2

[0045] Put ultra-light clay, PCL (melting point is about 65°C) and EVA (melting point is about 60°C) according to the weight of 71 parts, 20 parts and 9 parts, put them into a high-speed mixer and mix them evenly, and the temperature is 100°C. Blending is carried out, the blending is melt blending, and the blending method is banburying to prepare a water-repellent clay-based composite material, which is sealed in a sealed container.

[0046] Test results: Take 2.5g of the prepared composite material, shape it into a cube of 4cm×2cm×0.5cm, dry it at room temperature for 48 hours, heat the product at 300°C for half a minute with a heat gun, cool and solidify at room temperature, immerse in water for 4 hours, a small amount of color Exudation, water swelling size 4.1cm×2.1cm×0.6cm, complete shape, size 4cm×2cm×0.5cm after drying, heat the product at 300°C for half a minute with a heat gun, and shape one corner of it at a 90-degree right angle , cooled and solidified at room tempe...

Embodiment 3

[0048] Put ultra-light clay, EVA (melting point around 60°C), TPU (melting point around 70°C) and maleic anhydride (MAH) into a high-speed mixer according to the parts by weight of 1, 70, 27 and 2 parts Mix evenly, and blend at a temperature of 120°C. The blending is melt blending, and the blending method is extrusion. The prepared composite material is obtained by extruding through a 0.5cm sheet die, and cooled at room temperature After curing, a waterproof clay-based composite material is obtained, which does not need to be sealed for storage.

[0049] Test results: take 2 prepared composite material sheets 4cm×2cm×0.5cm, total: 13g, heat the product at 300°C for half a minute at the first gear of the heat gun, shape a 3cm×3cm×1cm cube, cool and solidify at room temperature, pour 40 ℃ water immersion for 72 hours, no change.

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Abstract

The invention aims to provide a clay-based composite material as well as a preparation method and a use method thereof. The composite material is prepared from the following components in parts by weight: 1 to 99 parts of ultralight clay and 1 to 99 parts of hydrophobic thermoplastic plastic, the preparation method comprises the following steps: carrying out melt blending on ultralight clay and hydrophobic thermoplastic plastic according to parts by weight, so as to prepare a clay-based composite material; according to the composite material, the ultra-light clay is prepared into the waterproof or water-repellent ultra-light clay-based composite material by utilizing the waterproof property of hydrophobic thermoplastic plastic; a product made of the composite material is molded and air-dried, the temperature of the product is increased to be above the melting point of the thermoplastic plastic, and the product with waterproof performance or water-repellent performance is formed after room temperature cooling and curing; the temperature of the product is increased to be higher than the melting point of the thermoplastic plastic for secondary processing and transformation, and the process can be repeatedly realized; the preparation method of the composite material is simple in process and suitable for industrial production; the material is an environment-friendly material.

Description

technical field [0001] The invention relates to the field of clay-based composite materials, in particular to a waterproof or water-repellent ultra-light clay-based composite material and methods for preparing and using the same. Background technique [0002] Ultra-light clay is a kind of paper clay, referred to as ultra-light clay. It is easier and more comfortable to knead, more suitable for modeling, and the works are very cute. It is more popular in Japan. It is a new type of environmentally friendly, non-toxic Noxious, natural drying hand-made modeling materials. It is mainly made by using polymer material foaming powder (vacuum microspheres) for foaming, and then physically mixing it with polyethanol, crosslinking agent, glycerin, pigments and other materials in a certain proportion. The components of ultra-light clay include foaming powder, water, paper pulp, and paste. Due to the large expansion volume, the specific gravity is very small, generally 0.25~0.28. And n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/02C08L23/08C08L75/04C08K3/34C04B111/27
CPCC04B26/02C08L23/0853C04B2111/27C08L75/04C08K3/346C04B14/10C04B2103/54
Inventor 曲天骄
Owner 秦皇岛砥厉科技有限公司
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