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Fireproof and weather-resistant polypropylene powdery coating material and preparation method thereof

A powder coating and polypropylene technology, applied in powder coatings, fireproof coatings, polyamide coatings, etc., can solve the problems of poor impact strength of the coating film, unsatisfactory UV resistance and weather resistance, poor adhesion of the coating film to the substrate, etc. , to achieve the effects of improved fire resistance, excellent compatibility, improved wear resistance and anti-aging ability

Inactive Publication Date: 2018-09-28
HUBEI UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary polypropylene powder has poor impact strength of the coating film, unsatisfactory UV resistance and weather resistance, and poor adhesion of the coating film to the substrate, so it needs to be modified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The invention provides a technical solution: a fire-proof and weather-resistant polypropylene powder coating, including (according to mass percentage): 40% polypropylene, 15% polyamide resin, 0.2% maleic anhydride, 4% flame retardant, oxidation 0.2% of zinc, 0.2% of antioxidant, 0.2% of light stabilizer, 0.8% of titanate coupling agent, 1.2% of xylene, 0.2% of carbon black, 3% of pigment, and the rest is filler.

[0026] A method for preparing a fire-resistant and weather-resistant polypropylene powder coating, comprising the following steps:

[0027] S1: Weigh the proportion, weigh the materials according to the above components;

[0028] S2: preparing a graft copolymer, mixing polypropylene and maleic anhydride evenly, placing it in a grinder, grinding it into 5 μm particles, extracting with chloroform as an extractant, drying, and cooling to obtain a polypropylene graft copolymer;

[0029] S3: Prepare the blend, place the polypropylene graft copolymer and polyamide ...

Embodiment 2

[0035] The invention provides a technical solution: a fire-resistant and weather-resistant polypropylene powder coating, including (according to mass percentage): 45% polypropylene, 14% polyamide resin, 0.5% maleic anhydride, 5% flame retardant, oxidation 0.3% of zinc, 0.5% of antioxidant, 0.5% of light stabilizer, 0.9% of titanate coupling agent, 1.5% of xylene, 0.3% of carbon black, 4% of pigment, and the rest is filler.

[0036] A method for preparing a fire-resistant and weather-resistant polypropylene powder coating, comprising the following steps:

[0037] S1: Weigh the proportion, weigh the materials according to the above components;

[0038] S2: preparing a graft copolymer, mixing polypropylene and maleic anhydride evenly, placing it in a grinder, grinding it into 10 μm particles, extracting with chloroform as an extractant, drying, and cooling to obtain a polypropylene graft copolymer;

[0039] S3: Prepare the blend, place the polypropylene graft copolymer and polya...

Embodiment 3

[0045] The invention provides a technical solution: a fire-proof and weather-resistant polypropylene powder coating, including (according to mass percentage): 46% polypropylene, 13% polyamide resin, 0.8% maleic anhydride, 6% flame retardant, oxidation 0.3% of zinc, 0.8% of antioxidant, 0.8% of light stabilizer, 1% of titanate coupling agent, 1.8% of xylene, 0.4% of carbon black, 5% of pigment, and the rest is filler.

[0046] A method for preparing a fire-resistant and weather-resistant polypropylene powder coating, comprising the following steps:

[0047] S1: Weigh the proportion, weigh the materials according to the above components;

[0048] S2: Prepare a graft copolymer, mix polypropylene and maleic anhydride evenly, place it in a grinder, grind it into 14 μm particles, use chloroform as an extraction agent to extract, dry, and cool to obtain a polypropylene graft copolymer;

[0049] S3: Prepare the blend, place the polypropylene graft copolymer and polyamide resin in a t...

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Abstract

The invention relates to the technical field of macromolecular materials and particularly relates to a fireproof and weather-resistant polypropylene powdery coating material. The fireproof and weather-resistant polypropylene powdery coating material is prepared from the ingredients in percentage by mass: 40% to 55% of polypropylene, 12% to 15% of polyamide resin, 0.2% to 1.0% of maleic anhydride,4% to 7% of flame retardant, 0.2% to 0.4% of zinc oxide, 0.2% to 1.0% of antioxidant, 0.2% to 1.0% of photostabilizer, 0.8% to 1.1% of titanate coupler, 1.2% to 2.0% of xylene, 0.2% to 0.5% of carbonblack, 3% to 6% of pigment and the balance of filler. The invention further discloses a preparation method of the fireproof and weather-resistant polypropylene powdery coating material. The method comprises the following production steps: S1: performing weighing and proportioning; and S2: preparing a grafted copolymer. The fireproof and weather-resistant polypropylene powdery coating material andthe preparation method thereof have the beneficial effects that the formula is reasonable, a halogen-free environment-friendly flame retardant is used, the pollution to human bodies and environments caused by halogen ingredients is avoided, meanwhile, the release of halogen elements during lighting and heating is also avoided, the preparation process is easy to achieve, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a fire-proof and weather-resistant polypropylene powder coating and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic resin produced by the polymerization of propylene. According to the arrangement of the methyl group, it can be divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene. Polypropylene is non-toxic, tasteless, low density, strength, rigidity, hardness and heat resistance are all better than low-pressure polyethylene, and can be used at around 100 °C. It has good dielectric properties and high-frequency insulation and is not affected by humidity, but it becomes brittle at low temperature, not wear-resistant, and easy to age. [0003] Polypropylene powder coating is a thermoplastic powder coating made of polypropylene as the main raw material, adding various additives...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/06C09D177/00C09D5/18C09D5/03C09D7/61
CPCC09D151/06C08K2003/2296C08L2201/02C08L2201/08C08L2201/22C09D5/033C09D5/18C08L77/00C08K13/02C08K3/22C08K3/04C08K5/34922C08K5/34928
Inventor 朱文利
Owner HUBEI UNIV OF ARTS & SCI