Glass fiber SMC alloy material

By using glass fibers and optimizing formulas in SMC composites, the shortcomings of existing SMC materials in toughness, hardness and impact strength are solved, and high-performance glass fiber SMC alloy materials are realized, suitable for vehicle shell applications that improve vehicle safety.

CN119823551APending Publication Date: 2025-04-15山东泽涛复合材料有限公司
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Patent Information

Application Number
CN202510028665.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The existing SMC composite materials have shortcomings in toughness, hardness and impact strength, which are difficult to meet the high safety needs of the automotive industry for automotive shell materials.

Method used

Glass fiber is used as the reinforcement material, and through the optimization of the formula, the addition of anti-ultraviolet absorbers, fine calcium powder, fine metal powder, dispersant, mold release additive and antioxidant, etc., to prepare high-performance glass fiber SMC alloy materials.

Benefits of technology

The SMC composite material with high toughness, high hardness and high impact strength is achieved, which is suitable for the application of thin plates such as vehicle shells and improves the safety of the vehicle.

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Abstract

The invention relates to a glass fiber SMC alloy material, and belongs to the field of SMC composite materials. The SMC composite material with high toughness, high hardness and high impact strength is prepared from the unsaturated resin, the glass fiber cloth, the reinforcing material and various assistants, and is an excellent SMC composite material for the vehicle shell.
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Description

Technical Field

[0001] The invention relates to a glass fiber SMC alloy material and belongs to the field of SMC composite materials. Background Art

[0002] SMC material is a kind of sheet molding material made of resin paste impregnated fiber or chopped fiber mat covered with polyethylene film on both sides; SMC material consists of three categories: synthetic resin, reinforcing material and auxiliary materials. The synthetic resin is unsaturated polyester resin, the reinforcing material is chopped fiber coarse sand or raw silk, and the auxiliary materials include curing agent (initiator), surface treatment agent, thickener and other additives.

[0003] SMC materials are waterproof and moisture-proof, have high specific strength, good toughness, are not easily deformed, and have a long service life. They are widely used in the automotive industry and are mostly used for thin panels such as bumpers, doors, hard shell roofs, and dashboards. In applications, SMC composite materials for bumpers, doors, and other car shells are used to improve toughness, hardness, and impact strength to improve vehicle safety. Summary of the invention

[0004] According to the background problem, the problem to be solved by the present invention is:

[0005] Provides an SMC composite material with high toughness, high hardness and high impact strength.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A glass fiber SMC alloy material, the mass fraction of the preparation formula is:

[0008]

[0009]

[0010] Preferably, the anti-ultraviolet absorber is UV-531 or UV-X-1.

[0011] Preferably, the particle size of the fine calcium powder is 600-2000 mesh.

[0012] Preferably, the particle size of the fine metal powder is 100-2000 mesh, and the fine metal powder is one of iron powder, copper powder, aluminum powder or lead powder.

[0013] Preferably, the dispersant is BYK-W972 or BES-SF.

[0014] Preferably, the demoulding aid is BYK-P9065 or zinc stearate.

[0015] Preferably, the antioxidant is one of BASF 1010, antioxidant 264 or LANXESS BHT.

[0016] The beneficial effects of the present invention are:

[0017] The glass fiber SMC alloy material obtained by the invention is an SMC composite material with high toughness, high hardness and high impact strength, and is an excellent SMC composite material for vehicle shells. DETAILED DESCRIPTION

[0018] Example 1

[0019]

[0020]

[0021] Example 2

[0022]

[0023] Example 3

[0024]

[0025]

[0026] Example 4

[0027]

[0028] Low temperature resistance Alkali resistance Tensile Strength Bending Strength Barcol hardness Horizontal burning Example 1 173 161 66 157 61 HB@3.8mm Example 2 166 169 68 159 55 HB@3.3mm Example 3 159 166 63 152 58 HB@35mm Example 4 163 173 61 161 60 HB@3.9mm

[0029] Table 1 Performance test data of each embodiment.

Claims

1. A glass fiber SMC alloy material, characterized in that: The mass fractions of the preparation formula are:

2. A glass fiber SMC alloy material according to claim 1, characterized in that: The anti-ultraviolet absorber is UV-531 or UV-X-1.

3. A glass fiber SMC alloy material according to claim 1, characterized in that: The particle size of the fine calcium powder is 600-2000 mesh.

4. A glass fiber SMC alloy material according to claim 1, characterized in that: The particle size of the fine metal powder is 100-2000 meshes, and the fine metal powder is one of iron powder, copper powder, aluminum powder or lead powder.

5. The glass fiber SMC alloy material according to claim 1, characterized in that: The dispersant is BYK-W972 or BES-SF.

6. A glass fiber SMC alloy material according to claim 1, characterized in that: The demoulding aid is BYK-P9065.

7. A glass fiber SMC alloy material according to claim 1, characterized in that: The antioxidant is one of BASF 1010, antioxidant 264 or LANXESS BHT.