阅读说明：本技术 一种耐老化玻璃钢材料及其制备方法 (Anti-aging glass fiber reinforced plastic material and preparation method thereof ) 是由 郎宝龙 隋英丹 王春侠 于 2020-04-24 设计创作，主要内容包括：本发明提供了一种耐老化玻璃钢材料,由下述重量份的原料制得：不饱和聚酯树脂100份、苯乙烯2-8份、固化剂1-3份、促进剂1-3份、玻璃纤维80-120份、伊利石功能粉体材料10-40份、偶联剂一1-3份、氧化锌1-2份、石墨烯5-6份。制备方法为将伊利石粉体酸洗后用水洗涤至中性,干燥,用偶联剂二改性制得伊利石功能粉体材料。伊利石功能粉体材料的添加与本发明其他原料复配能增加高分子链间的交联度,有效提高玻璃钢材料的耐老化性能和机械强度,本发明耐老化玻璃钢材料特别适用于船舶等海洋环境,其耐盐雾性、抗老化性和强度较普通玻璃钢材料显著提高。(The invention provides an anti-aging glass fiber reinforced plastic material which is prepared from the following raw materials in parts by weight: 100 parts of unsaturated polyester resin, 2-8 parts of styrene, 1-3 parts of curing agent, 1-3 parts of accelerator, 80-120 parts of glass fiber, 10-40 parts of illite functional powder material, 1-3 parts of coupling agent, 1-2 parts of zinc oxide and 5-6 parts of graphene. The preparation method comprises the steps of washing the illite powder with water to be neutral after acid washing, drying, and modifying with a coupling agent II to obtain the illite functional powder material. The addition of the illite functional powder material and the compounding of other raw materials can increase the crosslinking degree among high-molecular chains, effectively improve the aging resistance and the mechanical strength of the glass fiber reinforced plastic material, and the aging-resistant glass fiber reinforced plastic material is particularly suitable for marine environments such as ships, and the salt spray resistance, the aging resistance and the strength of the glass fiber reinforced plastic material are obviously improved compared with those of the common glass fiber reinforced plastic material.)

1. The anti-aging glass fiber reinforced plastic material is characterized by being prepared from the following raw materials in parts by weight: 100 parts of unsaturated polyester resin, 2-8 parts of styrene, 1-3 parts of curing agent, 1-3 parts of accelerator, 80-120 parts of glass fiber, 10-40 parts of illite functional powder material, 1-3 parts of coupling agent, 1-2 parts of zinc oxide and 5-6 parts of graphene.

2. The aging-resistant glass fiber reinforced plastic material as claimed in claim 1, wherein the unsaturated polyester resin is any one or a mixture of m-benzene type unsaturated polyester resin, bisphenol A type unsaturated polyester resin and vinyl ester type unsaturated polyester resin.

3. The aging-resistant glass fiber reinforced plastic material as claimed in claim 1, wherein the curing agent is any one or a mixture of several of methyl ethyl ketone peroxide, ethylenediamine and benzoyl peroxide.

4. The aging-resistant glass fiber reinforced plastic material as claimed in claim 1, wherein the accelerator is one or a mixture of two of cobalt naphthenate and N, N-dimethylaniline.

5. The aging-resistant glass fiber reinforced plastic material as claimed in claim 1, wherein the first coupling agent is any one or a mixture of silane coupling agent, titanate coupling agent and zirconate coupling agent.

6. The preparation method of the anti-aging glass fiber reinforced plastic material is characterized by comprising the following steps: the aging-resistant glass fiber reinforced plastic material as claimed in any one of claims 1 to 5, which is prepared by weighing raw materials, placing unsaturated polyester resin into a high-speed mixer, adding styrene for first stirring, sequentially adding coupling agent I, illite functional powder material, curing agent, accelerator, zinc oxide and graphene for second stirring, and finally adding glass fiber for third stirring.

7. The method for preparing the aging resistant glass fiber reinforced plastic material as recited in claim 6, wherein the stirring speed of the high-speed mixer is 820-; the first stirring time is 20-40 min; the second stirring time is 2 hours; the third stirring time is 30-60 min.

8. The method for preparing the aging-resistant glass fiber reinforced plastic material as claimed in claim 6, wherein the method for preparing the illite functional powder material comprises the following steps: and (3) washing the illite powder with water to be neutral after acid washing, drying, adding a coupling agent II, and stirring to obtain the illite functional powder material.

9. The method for preparing the aging-resistant glass fiber reinforced plastic material as claimed in claim 8, wherein the amount of the second coupling agent is 0.5-2.0% of the mass of the illite powder, the stirring temperature for adding the second coupling agent is 50 ℃, the stirring time is 2 hours, and the second coupling agent is a silane coupling agent.

10. The preparation method of the aging-resistant glass fiber reinforced plastic material as claimed in claim 8, wherein the illite powder comprises the following components in percentage by mass: SiO 2₂70-78％、Al₂O₃12-18％、K₂O4-9% and other metal oxides 0.2-4%.

Technical Field

The invention belongs to the technical field of composite materials, and relates to an anti-aging glass fiber reinforced plastic material and a preparation method thereof.

Background

The glass fiber reinforced plastic is also called fiber reinforced plastic, and is a composite material prepared by using glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, and using glass fiber, carbon fiber or boron fiber as reinforcing materials through a compounding process. Because of the different kinds of resins, there are polyester glass fiber reinforced plastics, epoxy glass fiber reinforced plastics and phenolic aldehyde glass fiber reinforced plastics. The material is light and hard, non-conductive, high in mechanical strength, good in insulativity, less in recycling, good in thermal performance and corrosion-resistant. The relative density of the glass fiber reinforced plastic is between 1.2 and 2.0, only 1/4 to 1/5 of carbon steel is available, but the tensile strength is close to or even exceeds that of carbon steel, and the specific strength can be compared with high-grade alloy steel, and the glass fiber reinforced plastic can replace steel to manufacture machine parts, storage tanks, pipelines, grids, towers and the like.

However, the glass fiber reinforced plastic is a fiber reinforced plastic, has the common defects of plastics, is easy to age, is easy to cause performance defects under the action of ultraviolet rays, mechanical stress, wind, sand, rain, snow, media and the like, and particularly in the marine environment, is subjected to corrosion caused by the influence of ultraviolet rays, seawater, oceans, atmosphere, marine organisms and the like for a long time, and seriously influences the performance and the service life of glass fiber reinforced plastic products.

Therefore, the research and development of an aging-resistant glass fiber reinforced plastic material with excellent performance and long service life and a preparation method thereof are technical problems which need to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In view of the above, the invention provides an anti-aging glass fiber reinforced plastic material and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

an anti-aging glass fiber reinforced plastic material is prepared from the following raw materials in parts by weight: 100 parts of unsaturated polyester resin, 2-8 parts of styrene, 1-3 parts of curing agent, 1-3 parts of accelerator, 80-120 parts of glass fiber, 10-40 parts of illite functional powder material, 1-3 parts of coupling agent, 1-2 parts of zinc oxide and 5-6 parts of graphene.

Further, the unsaturated polyester resin is any one or a mixture of a plurality of m-benzene type unsaturated polyester resin, bisphenol A type unsaturated polyester resin and vinyl ester type unsaturated polyester resin.

The adoption of the further beneficial effects is as follows: the unsaturated polyester resin is selected, so that the aging resistance and the corrosion resistance of the product are enhanced, and the strength of the product is improved.

Further, the curing agent is any one or a mixture of several of methyl ethyl ketone peroxide, ethylenediamine and benzoyl peroxide.

The adoption of the further beneficial effects is as follows: the glass fiber reinforced plastic system is solidified and formed, and the strength of the product is further improved.

Further, the accelerant is one or a mixture of two of cobalt naphthenate and N, N-dimethylaniline.

The adoption of the further beneficial effects is as follows: the accelerator is selected to accelerate the curing reaction of the glass fiber reinforced plastic system.

Further, the first coupling agent is any one or a mixture of several of a silane coupling agent, a titanate coupling agent and a zirconate coupling agent.

The adoption of the further beneficial effects is as follows: the coupling agent is selected to increase the crosslinking degree of the glass fiber reinforced plastic system and improve the strength of the glass fiber reinforced plastic product.

The invention also provides a preparation method of the anti-aging glass fiber reinforced plastic material, which comprises the following steps: weighing the raw materials according to the anti-aging glass fiber reinforced plastic material, putting the unsaturated polyester resin into a high-speed mixer, adding styrene for primary stirring, sequentially adding the coupling agent I, the illite functional powder material, the curing agent, the accelerator, the zinc oxide and the graphene for secondary stirring, finally adding the glass fiber for tertiary stirring, and then preparing and molding.

Further, the stirring speed of the high-speed mixer is 820-880 r/min; the first stirring time is 20-40 min; the second stirring time is 2 hours; the third stirring time is 30-60 min.

The adoption of the further beneficial effects is as follows: the materials of the glass fiber reinforced plastic system can be uniformly and fully mixed and reacted at a specific stirring speed and stirring time.

Further, the preparation method of the illite functional powder material comprises the following steps: and (3) washing the illite powder with water to be neutral after acid washing, drying, adding a coupling agent II, and stirring to obtain the illite functional powder material.

The adoption of the further beneficial effects is as follows: acid-washing illite to remove impurities, modifying by a coupling agent to increase the intersolubility of the powder and other components in the system, and fully playing the role of the powder.

Further, the above-mentioned drying is carried out until the water content is less than 1%.

The adoption of the further beneficial effects is as follows: the water content of the powder is too high, which directly influences the curing and strength of the resin and reduces the overall performance of the glass fiber reinforced plastic.

Further, the amount of the acid used for pickling is 10-30% of the mass of the illite powder.

The adoption of the further beneficial effects is as follows: the acid washing can effectively remove impurities in the powder and improve the effective components.

Further, the acid is any one of sulfuric acid, nitric acid, and hydrochloric acid.

The adoption of the further beneficial effects is as follows: the strong acid reacts with impurities fully, and the impurities are removed more completely.

Further, the pickling temperature is 90 ℃, and the pickling time is 2-3 h.

The adoption of the further beneficial effects is as follows: the heating and acid washing can accelerate the reaction and improve the reaction efficiency.

Further, the amount of the second coupling agent is 0.5-2.0% of the mass of the illite powder, the stirring temperature for adding the second coupling agent is 50 ℃, the stirring time is 2 hours, and the second coupling agent is a silane coupling agent.

The adoption of the further beneficial effects is as follows: the contact area between the powder and the organic matter is increased, the compatibility between the illite powder and the resin is improved, and the reaction efficiency is improved.

The second coupling agent is any one or a mixture of more of a silane coupling agent KH550, a silane coupling agent KH560, a silane coupling agent KH570 and a silane coupling agent KH 792.

The adoption of the further beneficial effects is as follows: the silane coupling agent modified powder can improve the dispersibility of the powder in a glass fiber reinforced plastic system, thereby improving the mechanical strength of a product.

Further, the illite powder comprises the following components in percentage by mass: SiO 2₂70-78％、Al₂O₃12-18％、K₂O4-9% and other metal oxides 0.2-4%.

The adoption of the further beneficial effects is as follows: the illite has high content of effective components, less impurities, stable quality and optimal application effect.

Further, the other metal oxide is any one or more of the following metal oxides: sodium, magnesium, calcium, iron.

Further, the particle size of the illite powder is 325-800 meshes.

The adoption of the further beneficial effects is as follows: the 325-doped 800-mesh powder has good dispersibility in a glass fiber reinforced plastic mixed system and can fully play the role of illite.

The invention has the beneficial effects that: the addition of the illite functional powder material and the compounding of other raw materials can increase the crosslinking degree among high-molecular chains, effectively improve the aging resistance and the mechanical strength of the glass fiber reinforced plastic material, and the aging-resistant glass fiber reinforced plastic material is particularly suitable for marine environments such as ships, and the salt spray resistance, the aging resistance and the strength of the glass fiber reinforced plastic material are obviously improved compared with those of common materials.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.