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High-efficiency enhanced halogen-free flame-retardant functional master batch for polypropylene direct injection molding and preparation method of functional master batch

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, and achieve improved interface adhesion, enhanced efficiency, and excellent The effect of the dispersion effect

Active Publication Date: 2019-03-19
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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  • High-efficiency enhanced halogen-free flame-retardant functional master batch for polypropylene direct injection molding and preparation method of functional master batch

Examples

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

15.0kg

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

60.0kg

Me...

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

35.0kg

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

Melami...

Embodiment 3

[0053] 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:

[0054] glass fiber

60.0kg

High Flow Polypropylene

28.0kg

Calcium ion crosslinked ethylene–acrylic acid copolymer elastic ionomer

5.7kg

Atactic polypropylene

3.0 kg

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

Mel...

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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 master batch capableof being directly applied to injection molding of polypropylene products and a preparation method of the functional master batch. The functional master batch is prepared by combining a master batch Aand a master batch B, wherein the master batch A comprises the following components in percentage by mass: 50.0-70.0% of glass fibers, 15.0-35.0% of high-fluidity polypropylene, 5.0-10.0% of an elastic ionomer, 3.0-6.0% of atactic polypropylene, 1.0-3.0% of maleic anhydride grafted polypropylene, 1.0-3.0% of polytetrafluoroethylene powder and 0.1-0.3% of an antioxidant. Compared with the traditional plastic functional master batch, the functional master batch prepared by the invention has the advantages that the condition that the modification effectiveness is low because the glass fibers andthe flame retardant perform mutual shearing friction to produce heat in the processing procedures of an enhanced halogen-free flame-retardant polypropylene modified system is avoided, the problem that mutual modification effectiveness damage is caused by mismatching of processing temperatures of the two modified systems is solved, and the modification effectiveness of the two is obviously enhanced.

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 Applications(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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