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A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for polypropylene direct injection molding and its preparation method

An injection molding and functional masterbatch technology, which is applied in the field of high-efficiency enhanced halogen-free flame-retardant functional masterbatch and its preparation, can solve the problems of mutual loss of modification performance, etc., and achieve improved interface adhesion, enhanced reinforcement efficiency, excellent The effect of the dispersion effect

Active Publication Date: 2021-11-12
江苏万纳普新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of mutual loss of modification performance existing in the preparation process of the existing glass fiber-reinforced halogen-free flame-retardant polypropylene special material, the present invention provides a high-efficiency reinforced halogen-free flame-retardant that can be directly applied to the injection molding processing of polypropylene plastic products. Combustion functional masterbatch and preparation method thereof

Method used

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  • A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for polypropylene direct injection molding and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high-efficiency enhanced flame-retardant functional masterbatch for direct injection molding of polypropylene, which is composed of two masterbatches A and B, and the mass ratio of the raw materials for the A masterbatch is as follows:

[0037] glass fiber 70.0 kg High Flow Polypropylene 15.0 kg Sodium ion crosslinked ethylene–acrylic acid copolymer elastic ionomer 8.0 kg Atactic polypropylene 4.0 kg Maleic anhydride grafted polypropylene 1.0 kg PTFE powder 1.7 kg antioxidant 300.0 g

[0038] The antioxidants are triethylene glycol bis-β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate (trade name Antioxidant 245) and bis(2,4-di-tert-butyl phenyl) pentaerythritol diphosphite (trade name Antioxidant 626) is a compound composed of 1:1 mass ratio.

[0039] The mass ratio of the raw materials of the B masterbatch is as follows:

[0040] Ammonium polyphosphate 60.0 kg Melamine cyanurate 30.0kg ...

Embodiment 2

[0044] A high-efficiency enhanced flame-retardant functional masterbatch for direct injection molding of polypropylene, which is composed of two masterbatches A and B, and the mass ratio of the raw materials for the A masterbatch is as follows:

[0045] glass fiber 50.0kg High Flow Polypropylene 35.0 kg Zinc ion crosslinked ethylene–acrylic acid copolymer elastic ionomer 7.0 kg Atactic polypropylene 5.0 kg Maleic anhydride grafted polypropylene 1.5 kg PTFE powder 1.2kg antioxidant 300.0 g

[0046] The antioxidants are triethylene glycol bis-β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate (trade name Antioxidant 245) and bis(2,4-di-tert-butyl phenyl) pentaerythritol diphosphite (trade name Antioxidant 626) is a compound composed of 1:1 mass ratio.

[0047] The mass ratio of the raw materials of the B masterbatch is as follows:

[0048] Ammonium polyphosphate 50.0kg Melamine cyanurate 40.0 kg Z...

Embodiment 3

[0053] A high-efficiency reinforced flame-retardant functional masterbatch for direct injection molding of polypropylene, which is composed of two masterbatches A and B. The mass ratio of the raw materials for the A masterbatch is as follows:

[0054] glass fiber 60.0 kg High Flow Polypropylene 28.0kg Calcium ion crosslinked ethylene–acrylic acid copolymer elastic ionomer 5.7kg Atactic polypropylene 3.0kg Maleic anhydride grafted polypropylene 2.0 kg PTFE powder 1.0 kg antioxidant 300.0 g

[0055] The antioxidants are triethylene glycol bis-β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate (trade name Antioxidant 245) and bis(2,4-di-tert-butyl phenyl) pentaerythritol diphosphite (trade name Antioxidant 626) is a compound composed of 1:1 mass ratio.

[0056] The mass ratio of the raw materials of the B masterbatch is as follows:

[0057] Ammonium polyphosphate 50.0kg Melamine cyanurate 39.0kg Ca...

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Abstract

The invention belongs to the technical field of plastic modification and processing, and in particular relates to a high-efficiency enhanced halogen-free flame-retardant functional masterbatch and a preparation method thereof which can be directly applied to injection molding of polypropylene products; the functional masterbatch is composed of A and B two A combination of masterbatches, the mass percentage of A masterbatch is as follows: glass fiber 50.0~70.0 wt.%, high flow polypropylene 15.0~35.0 wt.%, elastic ionomer 5.0~10.0wt.%, random polymer 3.0-6.0 wt.% of propylene, 1.0-3.0 wt.% of maleic anhydride grafted polypropylene, 1.0-3.0 wt.% of polytetrafluoroethylene powder, 0.1-0.3 wt.% of antioxidant; prepared by the present invention Compared with the traditional plastic functional masterbatch, the functional masterbatch avoids the modification effect caused by the mutual shear friction and heat generation between the glass fiber and the flame retardant during the processing of the enhanced halogen-free flame retardant polypropylene modification system, and solves the problem at the same time. It solves the problem of mutual loss of modification performance caused by the mismatch of the processing temperature of the above two modification systems, and significantly enhances the modification performance of the two.

Description

technical field [0001] The invention belongs to the technical field of plastic modification and processing, and in particular relates to a high-efficiency enhanced halogen-free flame-retardant functional masterbatch which can be directly applied to injection molding processing of polypropylene products and a preparation method thereof. Background technique [0002] Using twin-screw extruder to implement melt blending is a traditional method for plastic modification. Using the high-efficiency and excellent mixing performance of co-rotating twin-screw extruders, thermoplastics and various modified additives can be continuously melt-blended and extruded After granulation, the prepared modified special material will be used again for injection or extrusion processing to form various products. This technical route not only effectively improves the physical and mechanical properties of plastic products such as strength, toughness, stiffness, creep resistance, and flexure resistanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08L27/18C08L23/26C08L23/06C08K13/04C08K7/14C08K5/134C08K5/526C08K3/32C08K5/3492C08K5/09C08K5/20C08J3/22
CPCC08J3/226C08J2323/12C08J2423/06C08J2423/26C08J2427/18C08J2451/06C08K5/09C08K5/1345C08K5/20C08K5/34922C08K5/34928C08K5/526C08K7/14C08K13/04C08K2003/323
Inventor 李翰卿汪晓东孙艳军邱小龙徐君琦
Owner 江苏万纳普新材料科技有限公司
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