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Heatproof, transparent and impact-resistant PVDF/PP alloy material and preparation method thereof

An alloy material, transparent technology, applied in the field of materials, can solve the problems of large molding shrinkage, insufficient wear resistance, low heat distortion temperature, etc.

Inactive Publication Date: 2019-06-14
苏州煜之辉智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of polypropylene are that it has a large molding shrinkage rate, brittleness at low temperature, insufficient wear resistance, low heat distortion temperature, and poor weather resistance.

Method used

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  • Heatproof, transparent and impact-resistant PVDF/PP alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A heat-resistant transparent impact-resistant PVDF / PP alloy material is modified by blending PP, solubilizer, inorganic mineral powder and transparent nucleating agent, and then the modified PP, PVDF and solubilizer are blended to obtain mixture of materials.

[0036] A preparation method of a heat-resistant transparent impact-resistant PVDF / PP alloy material, comprising the following steps:

[0037] S1. Extrude talcum powder (2500ppm), diatomaceous earth and compatibilizer (8%) with surface pretreatment, and a small amount of copolymerized PP on a twin-screw extruder to form a high-concentration masterbatch, and then blend the masterbatch with PP , prepare modified PP material;

[0038] S2. Weigh the PVDF material (content 20%) and the modified PP material in proportion, and put them into a Haake rotor rheometer for mixing at a temperature of 150° C. for 15 minutes;

[0039] S3. After the mixing is completed, stop the machine, discharge the material, and leave the mi...

Embodiment 2

[0044] A heat-resistant transparent impact-resistant PVDF / PP alloy material is modified by blending PP, solubilizer, inorganic mineral powder and transparent nucleating agent, and then the modified PP, PVDF and solubilizer are blended to obtain mixture of materials.

[0045] A preparation method of a heat-resistant transparent impact-resistant PVDF / PP alloy material, comprising the following steps:

[0046] S1. Extrude the pretreated calcium carbonate (1000ppm), diatomite and compatibilizer (10%) on the surface, and a small amount of copolymerized PP on a twin-screw extruder to form a high-concentration masterbatch, and then blend the masterbatch with PP , prepare modified PP material;

[0047] S2. Weigh the PVDF (35%) material and the modified PP material in proportion, and put them into a Haake rotor rheometer for mixing at a temperature of 155° C. for 18 minutes;

[0048] S3. After the mixing is completed, stop the machine, discharge the material, and leave the mixed mate...

Embodiment 3

[0053] A heat-resistant transparent impact-resistant PVDF / PP alloy material is modified by blending PP, solubilizer, inorganic mineral powder and transparent nucleating agent, and then the modified PP, PVDF and solubilizer are blended to obtain mixture of materials.

[0054] A preparation method of a heat-resistant transparent impact-resistant PVDF / PP alloy material, comprising the following steps:

[0055] S1. Extrude talcum powder (1500ppm), diatomaceous earth, compatibilizer (15%) and a small amount of copolymerized PP on a twin-screw extruder to form a high-concentration masterbatch, and then blend the masterbatch with PP , prepare modified PP material;

[0056] S2. Weigh the PVDF material (45%) and the modified PP material in proportion, and put them into a Haake rotor rheometer for mixing at a temperature of 160° C. for 20 minutes;

[0057] S3. After the mixing is completed, stop the machine, discharge the material, and leave the mixed material for 26 hours;

[0058] ...

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Abstract

The invention specifically discloses a heatproof, transparent and impact-resistant PVDF (polyvinylidene fluoride) / PP (polypropylene) alloy material and a preparation method thereof. The addition of PVDF and a solubilizer to PP significantly improves the heat resistance and the impact resistance of a polymer, and the addition of additives improves the transparency of the polymer material and enhances the light transmittance of the polymer material. The heatproof, transparent and impact-resistant PVDF / PP alloy material is obtained by improving the performances of the current PP material, so theheat resistance, the transparency and the impact resistance of the alloy material are improved, and the alloy material well meets market demands.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a heat-resistant transparent impact-resistant PVDF / PP alloy material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a thermoplastic resin obtained by polymerizing propylene. According to the position of the methyl group, it is divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene. [0003] When the methyl groups are arranged on the same side of the molecular main chain, it is called isotactic polypropylene. If the methyl groups are arranged randomly on both sides of the molecular main chain, it is called atactic polypropylene. When the methyl groups are arranged alternately on both sides of the molecular main chain, it is called interstitial polypropylene. Regular polypropylene. In the polypropylene resin produced in general industry, the isotactic structure content is about 95%, and the ...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08L23/12C08L51/06C08K9/00C08K3/34C08K3/26C08K7/26C08J3/22
Inventor 农章玲
Owner 苏州煜之辉智能科技有限公司
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