阅读说明：本技术 一种基于石墨烯改性的lcd用pp材料 (Graphene modification-based PP material for LCD ) 是由 王冬兴 于 2019-11-26 设计创作，主要内容包括：本发明涉及一种基于石墨烯改性的LCD用PP材料,包括以下重量份数的各组分：聚丙烯树脂80-100份、氧化锆4-5份、木质纤维粉末40-50份、缩水甘油醚环氧树脂40-50份、硅烷偶联剂1-2份、钛酸酯偶联剂1-2份、石墨烯碳纤维1-2份、润滑剂1-2份。本发明技术方案将木质纤维粉末、缩水甘油醚环氧树脂和PP混合到一起进行改性,使得复合材料的拉伸强度、静曲强度的弯曲弹性模量均最佳。其中,缩水甘油醚环氧树脂的作用是能够增加整个材料的弹性强度,木质纤维粉末能够降低混合后复合材料的密度。(The invention relates to a graphene-modified PP material for an LCD, which comprises the following components in parts by weight: 80-100 parts of polypropylene resin, 4-5 parts of zirconium oxide, 40-50 parts of wood fiber powder, 40-50 parts of glycidyl ether epoxy resin, 1-2 parts of silane coupling agent, 1-2 parts of titanate coupling agent, 1-2 parts of graphene carbon fiber and 1-2 parts of lubricant. According to the technical scheme, the wood fiber powder, the glycidyl ether epoxy resin and the PP are mixed together for modification, so that the bending elastic modulus of the tensile strength and the static bending strength of the composite material are optimal. The glycidyl ether epoxy resin has the function of increasing the elastic strength of the whole material, and the wood fiber powder can reduce the density of the mixed composite material.)

1. The graphene-modified PP material for the LCD is characterized by comprising the following components in parts by weight: 80-100 parts of polypropylene resin, 4-5 parts of zirconium oxide, 40-50 parts of wood fiber powder, 40-50 parts of glycidyl ether epoxy resin, 1-2 parts of silane coupling agent, 1-2 parts of titanate coupling agent, 1-2 parts of graphene carbon fiber and 1-2 parts of lubricant.

2. The graphene-modified-based PP material for LCDs according to claim 1, wherein: the diameter of the glycidyl ether epoxy resin is 3-5 mm.

3. The graphene-modified-based PP material for LCDs according to claim 1, wherein: the wood fiber is one or more of straw powder, wood powder and bamboo powder.

4. The graphene-modified-based PP material for LCDs according to claim 1, wherein: the silane coupling agent is any one of vinyl trichlorosilane, vinyl trimethoxy silane, phenyl aminopropyl trimethoxy silane, gamma-isocyanate propyl triethoxy silane, gamma-aminopropyl triethoxy silane, gamma-glycidoxypropyl trimethoxy silane, gamma-methacryloxypropyl trimethoxy silane, gamma-mercaptopropyl trimethoxy silane and gamma-chloropropyl triethoxy silane.

5. The graphene-modified-based PP material for LCDs according to claim 1, wherein: the lubricant is n-butyl stearate, the acid value mgKOH/g is less than or equal to 0.15, the saponification value KOHmg/g185, the color is less than or equal to 18, and the water content is less than or equal to 0.15%.

Technical Field

The invention relates to a PP material, in particular to a graphene modification-based PP material for an LCD.

Background

The BackLight (BackLight) is a light source located behind a Liquid Crystal Display (LCD), and its light emitting effect directly affects the visual effect of the liquid crystal display module (LCM). The liquid crystal itself does not emit light, and it displays graphics or characters as a result of its modulation of light. The development of backlights can be traced back to the second war period. At the time, a subminiature tungsten lamp was used as a backlight source for aircraft instruments. This is the initial stage of backlight development. Through development of half a century, the backlight source has become an electronic independent subject nowadays and gradually forms a research and development hotspot. The backlight module helps attack and needs to use the flexible stop strip.

A PP material is required in the backlight module. The strength of the PP material is required. A

Disclosure of Invention

The technical scheme of the invention is as follows:

the graphene-modified PP material for the LCD is characterized by comprising the following components in parts by weight: 80-100 parts of polypropylene resin, 4-5 parts of zirconium oxide, 40-50 parts of wood fiber powder, 40-50 parts of glycidyl ether epoxy resin, 1-2 parts of silane coupling agent, 1-2 parts of titanate coupling agent, 1-2 parts of graphene carbon fiber and 1-2 parts of lubricant.

Further, the diameter of the glycidyl ether epoxy resin is 3-5 mm.

Further, the wood fiber is one or more of straw powder, wood powder and bamboo powder.

Further, the silane coupling agent is any one of vinyltrichlorosilane, vinyltrimethoxysilane, phenylaminopropyltrimethoxysilane, gamma-isocyanate propyltriethoxysilane, gamma-aminopropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-mercaptopropyltrimethoxysilane and gamma-chloropropyltriethoxysilane.

Furthermore, the lubricant is n-butyl stearate, the acid value mgKOH/g is less than or equal to 0.15, the saponification value KOHmg/g185, the color is less than or equal to 18, and the water content is less than or equal to 0.15%.

By the scheme, the invention at least has the following advantages:

according to the technical scheme, the wood fiber powder, the glycidyl ether epoxy resin and the PP are mixed together for modification, so that the bending elastic modulus of the tensile strength and the static bending strength of the composite material are optimal. The glycidyl ether epoxy resin has the function of increasing the elastic strength of the whole material, and the wood fiber powder can reduce the density of the mixed composite material.

The added auxiliary agent can reduce the viscosity of the composite material and improve the fluidity of the composite material in the preparation process; the heat dissipation performance of the composite material can be improved, and the internal overheating of the product can be avoided.

In the preparation process, the nitrogen is used twice, so that bubbles can be formed in the composite material, and the density of the composite material is reduced.

The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.