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Self-demoulding mold and preparation method thereof

A self-release mold and mold technology, applied in the direction of coating, etc., can solve the problem of release agent environmental pollution and so on

Inactive Publication Date: 2021-04-09
舾蒙新材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dust pollution generated by grinding and the use of release agent in the above preparation process are the most serious environmental pollution

Method used

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  • Self-demoulding mold and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A self-release model mold, including a mold base material, the use surface of the mold base material is coated with a self-release layer, the mold base material is carbon steel, the self-release layer is an inorganic coating, and the thickness of the self-release layer is 32 μm ; Among them, the inorganic coating includes the following components: 36 parts of nano-silica sol, 32 parts of organosilane, 5 parts of functional filler, 7 parts of water, 20 parts of inorganic pigment, 3 parts of functional additive, thickener 0.1 share.

[0025] Among them, the organosilane is methyltrimethoxysilane. The thickener is fumed silica with a particle size of less than 1 μm. The functional filler is a mixture of potassium titanate whiskers and alumina. The inorganic pigment is titanium dioxide. Functional additives include leveling agent (polyether-modified dimethylpolysiloxane copolymer), defoamer and polysiloxane, and the defoamer can be commercially available.

[0026] The p...

Embodiment 2

[0036] A self-release model mold, including a mold base material, the use surface of the mold base material is coated with a self-release layer, the mold base material is a fiberglass composite material, and an interface layer is also provided between the use surface of the mold base material and the self-release layer , the interface layer is water-based polyurethane material, the self-release layer is an inorganic coating, the thickness of the interface layer is 20 μm, and the thickness of the self-release layer is 25 μm. Among them, the inorganic coating includes the following components: 45 parts of nano-silica sol, 25 parts of organosilane, 10 parts of functional filler, 15 parts of water, 10 parts of inorganic pigment, 2 parts of functional additive, and 2 parts of thickener .

[0037] Wherein, the organosilane is tetraethoxysilane, and the rest of the components are the same as in Example 1.

[0038] The preparation method of the inorganic coating is the same as that o...

Embodiment 3

[0047] A self-release model mold, including a mold base material, the use surface of the mold base material is coated with a self-release layer, the mold base material is a fiberglass composite material, and an interface layer is also provided between the use surface of the mold base material and the self-release layer , the interface layer is made of epoxy resin material, the self-release layer is an inorganic coating, the thickness of the interface layer is 30 μm, and the thickness of the self-release layer is 45 μm. Among them, the inorganic coating includes the following components: 25 parts of nano-silica sol, 45 parts of organosilane, 8 parts of functional filler, 5 parts of water, 16 parts of inorganic pigment, 5 parts of functional additive, and 0.8 part of thickener .

[0048] Among them, the organosilane is methyltrimethoxysilane. All the other components are the same as in Example 1.

[0049] The preparation method of the inorganic coating is the same as that of E...

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Abstract

The invention discloses a self-demolding mold, which comprises a mold base material, the use surface of the mold base material is coated with a self-demolding layer, and the self-demolding layer is an inorganic coating; wherein the inorganic coating is prepared from the following components by mass: 25-45 parts of nano silicon dioxide sol, 25-45 parts of organosilane, 5-10 parts of functional filler, 5-15 parts of water, 10-20 parts of inorganic pigment, 2-5 parts of a functional additive and 0.1-2 parts of a thickening agent. The mold disclosed by the invention has the characteristics of self-demolding property, high environmental friendliness, reduction of production flow and saving of production time and production cost.

Description

technical field [0001] The invention relates to the technical field of surface engineering, in particular to a self-release model mold and a preparation method thereof. Background technique [0002] FRP products, latex products, polyurethane products, rubber products, resin products and other products are used in household, construction and industrial purposes. During the manufacturing process of the above products, they need to be produced according to the designed molds. Most of these molds use metal substrates or Fiberglass base. [0003] In the prior art, in the process of manufacturing products using glass fiber reinforced plastic molds or metal molds, it is necessary to spray a release agent on the glass fiber reinforced plastic molds or metal molds in advance, then spray the gel coat, add corresponding raw materials to the mold and prepare semi-finished products, and finally The semi-finished product is polished to remove the release agent, repair the pores, and then...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/20C09D7/61C09D7/63C09D7/65B29C33/56
CPCB29C33/56C09D1/00C09D5/20C09D7/61C09D7/63C09D7/65
Inventor 王婧邹沁怡
Owner 舾蒙新材料科技(上海)有限公司
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