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High-heat-resistance modified ABS (Acrylonitrile Butadiene Styrene) material with strong adhesion with PUR (Polyurethane) and preparation method thereof

An ABS material and high heat-resistant technology, which is applied in the field of high heat-resistant polyurethane bonding ABS material and its preparation, can solve the problems of not meeting high strength requirements, being easily damaged, and affecting the dimensional stability of parts, so as to promote Effects of compatibility, strong bondability, high-efficiency dyne value, and bond strength

Pending Publication Date: 2022-04-12
ZHEJIANG PRET NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the hot-melt adhesive for ABS materials is thermoplastic polyurethane hot-melt adhesive, and the two are bonded by weak intermolecular interactions, such as van der Waals force and hydrogen bond force, which are easily destroyed in high-temperature and high-humidity environments , cannot meet the high-strength requirements, and the required high temperature of the hot pressing process (>100°C) affects the dimensional stability of the parts

Method used

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  • High-heat-resistance modified ABS (Acrylonitrile Butadiene Styrene) material with strong adhesion with PUR (Polyurethane) and preparation method thereof
  • High-heat-resistance modified ABS (Acrylonitrile Butadiene Styrene) material with strong adhesion with PUR (Polyurethane) and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh 30 parts of ABS DG-417, 50 parts of ABS AE8000, 15 parts of MS-NI, 5 parts of MBS-M732, 0.2 parts of each of antioxidant 1010 and 619F, pre-mix in a mixer for 10-15 minutes, and then The mixture is poured into the main feeding port of the twin-screw extruder, the extrusion temperature is adjusted to 220-240°C, the screw speed is 450-600rpm, the extrusion is cooled by a water tank, and the pellets are granulated by a pelletizer.

Embodiment 2-4

[0031] ABS resin examples 2-4 were prepared according to the method of Example 1, and the specific formulations are shown in Table 1.

[0032]

[0033] Extrude the particles in the comparative examples and examples, bake them at 90°C / 4h, and inject them into 80*10*4mm strips. In the performance test results, the flexural strength and modulus adopt the ISO 178 standard; the notched impact strength adopts the ISO 179 standard / 1eA standard; Vicat softening temperature adopts ISO306-B50 test method; dyne value adopts A.Shine dyne value pen, draw a stroke on the smooth sample plate with the pen, if the liquid does not shrink within three seconds, it reaches the selected dyne , otherwise not reached; surface tension using optical contact angle measurement method.

[0034]

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Abstract

The invention discloses a high-heat-resistance ABS (Acrylonitrile Butadiene Styrene) material with strong adhesion with PUR (Polyurethane) and a preparation method thereof. The material comprises the following components in percentage by weight: 65-80% of ABS resin, 10-25% of a heat-resistant agent, 3-10% of a toughening agent, 0-10% of a reaction type compatilizer and 0.4% of an antioxidant. Compared with the prior art, the selected MS-NI heat-resistant agent has high glass transition temperature so as to improve heat resistance, and contains imide groups so as to improve polarity; the introduced MBS flexibilizer endows the material with high elasticity, and the surface dyne value and the initial adhesion are also improved; the reactive compatibilizer has poor compatibility and is intensively distributed on the surface, the active GMA group can form chemical bonds with hydroxyl and amino in moisture-cured polyurethane, and the strong bonding effect enables the moisture-cured polyurethane to have high and low temperature resistance and damp-heat aging resistance, and the moisture-cured polyurethane can be used for interior and exterior trim parts of automobiles.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to an adhesive modified ABS material and a preparation method thereof, in particular to a high heat-resistant polyurethane adhesive ABS material and a preparation method thereof Background technique [0002] ABS material has good toughness, high mechanical strength and excellent processing performance, so it is widely used in the fields of electronic appliances, transportation and light industrial products, especially in the automotive field, it has high heat resistance and high toughness at the same time. Important components such as door panels, pillars and sub-dashboards. In order to improve the plastic texture of ABS materials, post-processing methods such as coating, electroplating and painting are often used to show aesthetic appearance and decoration. Among them, the coating process is to achieve excellent bonding strength between materials and adhesives. Adhesives s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L35/06C08L51/04C08L23/08
Inventor 付立顺鲁文芳尹秀萍梁亚男刘嘉任纪效均周炳张锴蔡莹蔡青周文
Owner ZHEJIANG PRET NEW MATERIALS
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