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Thermoplastic elastomer (TPE) alloy for nylon adhesive encapsulation and preparation method thereof

A technology of alloy and nylon, which is applied in the field of polymer materials, can solve the problems of poor adhesion between alloy materials and nylon coating, poor adaptability of TPE alloys, poor encapsulation effect, etc., and achieve good adhesion performance, excellent mechanical properties, Not easy to fall off effect

Inactive Publication Date: 2014-02-05
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, TPE alloy is one of the commonly used materials for nylon bonding and encapsulation, but the application of existing TPE alloys has the following defects: 1. The encapsulation effect of TPE alloy on nylon is poor, which is reflected in the cladding of alloy materials and nylon Poor adhesion and easy to fall off; 2. There are many varieties of nylon, and a certain TPE alloy can only obtain better encapsulation effect for a certain type of nylon, that is, the existing TPE alloy has poor adaptability

Method used

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  • Thermoplastic elastomer (TPE) alloy for nylon adhesive encapsulation and preparation method thereof
  • Thermoplastic elastomer (TPE) alloy for nylon adhesive encapsulation and preparation method thereof
  • Thermoplastic elastomer (TPE) alloy for nylon adhesive encapsulation and preparation method thereof

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preparation example Construction

[0034] Correspondingly, the embodiment of the present invention also provides the preparation method of the above-mentioned TPE alloy for nylon adhesive encapsulation, and its process flow is as follows figure 1 shown. The method comprises the steps of:

[0035] S01. Weighing the formula components: Weighing each component according to the above formula for the TPE alloy used for nylon bonding and encapsulation;

[0036] S02. Preparation of mixed material: weighing each component in step S01 for mixing treatment to obtain mixed material;

[0037] S03. Melt-extrusion of the mixed material: melt-extrude the mixed material in step S02 to obtain the TPE alloy for nylon bonding and encapsulation.

[0038] Specifically, the formula of the TPE alloy used for nylon bonding and encapsulation in the above step S01 and the preferred content and types of each component in the formula are as described above, and will not be repeated here to save space.

[0039] In the above step S02, th...

Embodiment 1

[0045] The amount of each component used in the preparation of the nylon adhesive-encapsulated TPE alloy in this example is shown in Table 1 below.

[0046]Among them, the thermoplastic elastomer in Example 1 is a combination of styrene-based thermoplastic elastomer SEBS (Yuehua, YH503) and polyurethane thermoplastic elastomer TPU (Gaoding Chemical, EX-80A) at a weight ratio of 1:2 The engineering plastic is nylon 6 (BASF B35G3), the plasticizer is naphthenic oil, the compatibilizer is maleic anhydride grafted styrene block copolymer (SEBS-MAH, Kraton FG1901GT), and the filler is carbonic acid Calcium, auxiliary agent is anti-ultraviolet agent UV-329.

[0047] The preparation method of TPE alloy is as follows:

[0048] S11. Weigh thermoplastic elastomers, engineering plastics, plasticizers, compatibilizers, fillers and auxiliary agents according to the formula of Example 1 in Table 1;

[0049] S12. Weighing each component in step S11 for mixing treatment, and mixing uniforml...

Embodiment 2

[0052] The amount of each component of the TPE alloy used for nylon adhesive encapsulation in this embodiment is shown in Table 1, wherein,

[0053] The thermoplastic elastomer is a composition obtained by mixing styrene thermoplastic elastomer (SEBS, Yuehua YH503) and polyurethane thermoplastic elastomer (TPU, Gaoding Chemical EX-80A) at a weight ratio of 5:9, and the engineering plastic is polycarbonate Ester (Germany Bayer 2805), plasticizer is aromatic oil, compatibilizer is maleic anhydride grafted styrene block copolymer (SEBS-MAH, Kraton FG1901GT), filler is calcium carbonate, auxiliary agent is lubricant Ethylene bis stearamide.

[0054] The preparation method of TPE alloy is as follows:

[0055] S21. Take thermoplastic elastomers, engineering plastics, plasticizers, compatibilizers, fillers and auxiliary agents according to the formula of Example 2 in Table 1;

[0056] S22. Weighing each component in step S21 for mixing treatment, and mixing uniformly in a high-spee...

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Abstract

The invention discloses a thermoplastic elastomer (TPE) alloy for nylon adhesive encapsulation. The TPE alloy comprises the following components in percentage by mass: 30-45 percent of TPE, 10-20 percent of engineering plastic, 10-35 percent of plasticizer, 10-15 percent of compatilizer, 10-15 percent of filler and 1-2 percent of aid, wherein the TPE is one or a mixture of several in a styrene thermoplastic elastomer, a thermoplastic polyurethane elastomer and a polyester elastomer; the engineering plastic is one or more selected from polypropylene, polyethylene, polystyrene, polycarbonate, nylon 6 and nylon 66. The invention also discloses a method for preparing the TPE alloy. The TPE is matched with the engineering plastic, and the components have a synergistic effect in the melt extrusion process, so that the mechanical properties, such as hardness, tensile strength and elongation at break, of the TPE alloy are excellent, and the TPE alloy is high in adhesion property of different models of nylon encapsulations and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a TPE alloy used for nylon bonding and encapsulation and a preparation method thereof. Background technique [0002] Nylon has the advantages of excellent self-lubrication, wear resistance, chemical resistance, gas permeability, oil resistance, non-toxicity and easy coloring. It is widely used in industries. With the miniaturization of automobiles and the high performance of electronic and electrical equipment 1. The process of lightening mechanical equipment is accelerating, and the demand for nylon will be greater. At the same time, new varieties of modified nylon will continue to increase and develop rapidly. [0003] Adhesive encapsulation of nylon is one of the methods of nylon modification. The advantage of encapsulation technology is that the material after encapsulation has the rigidity and strength of engineering plastics and the flexibility of ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L75/04C08L77/02C08L69/00C08L77/06B29C47/92B29C48/92
CPCB29C48/92B29C48/875B29C2948/92704B29C2948/92895
Inventor 徐东徐永由可锦
Owner SHENZHEN KEJU NEW MATERIAL
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