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Halogen-free flame-retardant soft material used for automobile interior decoration, and preparation method thereof

A technology of soft materials and raw materials, which is applied in the field of halogen-free flame-retardant soft materials for automotive interiors and its preparation, can solve the problems of poor high and low temperature resistance of PU materials, and easy aging and cracking, so as to improve mechanical properties, Good surface quality and overall performance, the effect of improving processing performance

Active Publication Date: 2019-08-09
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PU materials have poor high and low temperature resistance and are prone to aging and cracking.

Method used

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  • Halogen-free flame-retardant soft material used for automobile interior decoration, and preparation method thereof
  • Halogen-free flame-retardant soft material used for automobile interior decoration, and preparation method thereof
  • Halogen-free flame-retardant soft material used for automobile interior decoration, and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0049] The preparation method of embodiment 1-4 in table 2 and comparative example 1 is as follows:

[0050] a) Weigh each raw material according to the formula components;

[0051] b) mixing all raw materials evenly to obtain a mixture;

[0052] c) adding the compound to the banbury mixer for banburying;

[0053] d) The mixed material after banburying is added to the twin-screw extruder through double-cone feeding;

[0054] e) Extruding and granulating with a twin-screw extruder to obtain a halogen-free flame-retardant soft material.

[0055] Wherein, the internal mixing temperature of the internal mixer is 150°C. The aspect ratio of the twin-screw extruder is 40:1. The set temperatures of each temperature zone of the twin-screw extruder are: 150°C, 180°C, 180°C, 180°C, 175°C, 175°C, 170°C, 170°C, 170°C, 165°C. The host speed is 280r / min.

[0056] The preparation method of comparative example 2-3 in table 2 is as follows:

[0057] a) Weigh each raw material according to ...

Embodiment 1

[0063] The raw material composition of the halogen-free flame-retardant soft material in Example 1 is shown in Table 2. Among them, the polyolefin elastomer is POE6502, and the melt index is 50g / 10min. The ethylene-vinyl acetate copolymer is EVA 7470M, and the VA value is 26%. The polyethylene is SP0540 with a melt index of 4g / 10min. The PE-g-MAH compatibilizer is MC218 produced by Nengzhiguang. The halogen-free flame retardant is a combination of melamine cyanurate and aluminum hypophosphite. The lubricant is polyethylene wax BN500. The colorant is titanium dioxide R-103. The antioxidant is B215, which is composed of hindered phenolic antioxidant and phosphite antioxidant. The light stabilizer is Cytec UV-329.

Embodiment 2

[0065] The difference between embodiment 2 and embodiment 1 is that the POE is 30%. EVA is 18%. Polyethylene is 12%. In this example, by adjusting these components, the hardness of the product can be increased, which is suitable for the hardness requirements of different models and components. The mass percentages of other components in this example are shown in Table 2.

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Abstract

The invention discloses a halogen-free flame-retardant soft material used for automobile interior decoration, a preparation method thereof, and applications of the halogen-free flame-retardant soft material in preparation of automobile interior decoration parts. The halogen-free flame-retardant soft material used for automobile interior decoration is composed of polyolefin elastomer, ethane-ethenyl ethanoate copolymer, polyethylene, a maleic anhydride grafted compatilizer, a halogen free fire retardant, and a processing auxiliary agent. The halogen-free flame-retardant soft material is soft, possesses high and low temperature resistance, UV resistance, and weatherability, is low in smell, and is capable of satisfying UL94 V0 flame resistance requirements. The material comprehensive performance is excellent; the preparation method is simple; the halogen-free flame-retardant soft material is worthy of popularization and applications, is suitable to be used for preparation of automobile interior decoration parts such as seat guard board coating rubber, glove box storage box rubber pad, and leather pattern decoration coating rubber.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a halogen-free flame-retardant soft material for automobile interior decoration and a preparation method thereof. Background technique [0002] At present, most of the soft parts of automotive interior parts are made of PVC and PU materials, and the hardness requirement is 70-85A. However, materials that only use polypropylene or polyethylene as the main resin cannot meet the low hardness requirements. PVC materials contain halogens, which will be gradually replaced under the increasingly strict halogen-free environmental protection requirements of the automotive industry. However, PU materials have poor high and low temperature resistance and are prone to aging and cracking. At the same time, based on the requirements of new energy vehicles, the requirements of automotive materials are also developing in terms of flame retardancy. [0003] How to improve the perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/06C08K13/02C08K5/3492C08K3/32C08K3/22C08K5/3475
CPCC08K2003/2241C08L23/0815C08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08L2205/035C08L51/06C08K13/02C08K5/34928C08K3/32C08K3/22C08K5/3475
Inventor 董启殿吕伟李广富熊金标
Owner GUANGDONG JUSHI CHEM CO LTD
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