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A high-efficiency enhanced halogen-free flame-retardant heat-conducting and light-shielding multifunctional masterbatch for PBT direct injection molding and its preparation method

An injection molding and reinforced technology, which is applied in the field of high-efficiency reinforced halogen-free flame-retardant, thermally conductive, light-shielding multifunctional masterbatch and its preparation, can solve problems such as mutual loss of modification efficiency, improve modification efficiency and solve modification efficiency. Mutual loss, easy processing effect

Active Publication Date: 2021-03-23
江苏万纳普新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of mutual loss of modification performance existing in the preparation process of existing glass fiber-reinforced halogen-free flame-retardant, heat-conducting, and light-shielding modified PBT special materials, the present invention provides a high-efficiency enhanced non-woven fabric that can be directly applied to the injection molding process of PBT plastic products. Halogen flame-retardant, heat-conducting, light-shielding multifunctional masterbatch and preparation method thereof

Method used

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  • A high-efficiency enhanced halogen-free flame-retardant heat-conducting and light-shielding multifunctional masterbatch for PBT direct injection molding and its preparation method
  • A high-efficiency enhanced halogen-free flame-retardant heat-conducting and light-shielding multifunctional masterbatch for PBT direct injection molding and its preparation method
  • A high-efficiency enhanced halogen-free flame-retardant heat-conducting and light-shielding multifunctional masterbatch for PBT direct injection molding and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high-efficiency enhanced halogen-free flame-retardant, heat-conducting, and light-shielding multifunctional masterbatch for direct injection molding of PBT resin. It is composed of two masterbatches, A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0038]

[0039] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0040] The mass ratio of the raw materials of the B masterbatch is as follows:

[0041]

[0042] The preparation method of A masterbatch is as follows: Weigh all the raw materials according to the above mass ratio requirements, then put all the raw materials except glass fiber into the high-speed mixer and mix them evenly, and then feed the obtained mixture from the main feeder into the twin-screw extruder, the chopped g...

Embodiment 2

[0045] A high-efficiency enhanced halogen-free flame-retardant, heat-conducting, and light-shielding multifunctional masterbatch for direct injection molding of PBT resin. It is composed of two masterbatches, A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0046]

[0047] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0048] The mass ratio of the raw materials of the B masterbatch is as follows:

[0049]

[0050] The preparation method of A masterbatch is as follows: Weigh all the raw materials according to the above mass ratio requirements, then put all the raw materials except glass fiber into the high-speed mixer and mix them evenly, and then feed the obtained mixture from the main feeder into the twin-screw extruder, the chopped g...

Embodiment 3

[0053] A high-efficiency enhanced halogen-free flame-retardant, heat-conducting, and light-shielding multifunctional masterbatch for direct injection molding of PBT resin. It is composed of two masterbatches, A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0054]

[0055] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) 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]

[0058] The preparation method of A masterbatch is as follows: Weigh all the raw materials according to the above mass ratio requirements, then put all the raw materials except glass fiber into the high-speed mixer and mix them evenly, and then feed the obtained mixture from the main feeder into the twin-screw extruder, the chopped g...

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Abstract

The invention belongs to the technical fields of plastic modification and processing and particularly relates to an efficient enhanced halogen-free flame-retardant heat-conducting light-shading multifunctional master batch which can be directly applied to the direct injection molding of PBT products and a preparation method of the multifunctional master batch. The multifunctional master batch is formed by the combination of a master batch A and a master batch B, wherein the master batch A contains the following components in percentage by weight: 50.0wt%-60.0wt% of glass fibers, 30.0wt%-40.0wt% of high-flow PBT resin, 5.0wt%-10.0wt% of diglycidyl ether acrylate grafted elastic ionomer and 0.1wt%-0.3wt% of an antioxidant. Compared with a traditional plastic functional master batch, the prepared functional master batch has the advantages that the mutual loss of the modification effect caused due to the mutual shear loss among the glass fibers, the flame retardant and inorganic functionalmodifier particles in the processing process of a halogen-free flame-retardant PBT resin modification system is avoided, the problem that the processing temperatures of two modification systems are not matched is solved, and the modification effects of the two systems are remarkably improved; and the multifunctional master batch has the characteristics of easiness in dispersion and processing andcan be subjected to injection molding after being simply mixed with PBT resin in proportion.

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, heat-conducting, light-shielding multifunctional masterbatch and a preparation method thereof, which can be directly applied to the injection molding processing of PBT products. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L51/06C08K7/14C08K5/5313C08K5/3492C08K3/38C08K3/22C08K3/30C08K3/34C08J3/22
CPCC08J3/226C08J2451/06C08J2467/02C08K3/34C08K5/34922C08K5/5313C08K7/14C08K2003/2227C08K2003/2241C08K2003/2293C08K2003/2296C08K2003/282C08K2003/3036C08K2003/323C08K2003/385
Inventor 李翰卿汪晓东孙艳军邱小龙李朋威
Owner 江苏万纳普新材料科技有限公司
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