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Polyamide-polypropylene blend and preparation method thereof

A technology for copolymerizing polypropylene and polyamide, which is applied in the field of polyamide-polypropylene blend and its preparation, can solve the problems of no thermodynamic compatibility, poor compatibility, large difference in solubility parameters, etc., and achieves good mechanical properties. performance, improve compatibility, avoid the effect of uneven dispersion

Inactive Publication Date: 2018-02-06
台山市腾达塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, polyamide is a crystalline, highly polar polymer, while polypropylene is a weakly polar polymer. The solubility parameters of the two are quite different, and they do not have thermodynamic compatibility. Therefore, polyamide and poly Simple blends of propylene have the disadvantage of poor compatibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In this embodiment, the polyamide-polypropylene blend comprises 25 parts by weight of polyamide, 5 parts of polypropylene, 2 parts of compatibilizer, 3 parts of toughening agent, and 5 parts of talcum powder blended . The polyamide mentioned above refers to a polyamide with a melting point above 210°C and an intrinsic viscosity index of 2.4. The said polypropylene is a copolymerized polypropylene with a melting point of 160°C. The compatibilizer is one or a mixture of glyceryl monostearyl ether or glyceryl monostearate. In this embodiment, the compatibilizer is monostearyl glyceryl ether. The toughening agent is a thermoplastic elastomer toughening agent.

[0024] Weigh 25 parts of polyamide, 5 parts of polypropylene, 2 parts of compatibilizer, 3 parts of toughening agent, and 5 parts of talcum powder respectively according to the above-mentioned parts by weight, and the preparation method of the polyamide-polypropylene blend comprises the following step:

[0025] ...

Embodiment 2

[0029] In this embodiment, the polyamide-polypropylene blend comprises 30 parts by weight of polyamide, 10 parts of polypropylene, 3 parts of compatibilizer, 4 parts of toughening agent, and 7 parts of talcum powder blended . The polyamide mentioned above refers to a polyamide with a melting point above 210°C and an intrinsic viscosity index of 2.4. The said polypropylene is a copolymerized polypropylene with a melting point of 160°C. The compatibilizer is one or a mixture of glyceryl monostearyl ether or glyceryl monostearate. In this embodiment, the compatibilizer is monostearyl glyceryl ether. The toughening agent is a thermoplastic elastomer toughening agent.

[0030] Weigh 30 parts of polyamide, 10 parts of polypropylene, 3 parts of compatibilizer, 4 parts of toughening agent, and 7 parts of talcum powder respectively according to the above-mentioned parts by weight, and the preparation method of the polyamide-polypropylene blend comprises the following step:

[0031...

Embodiment 3

[0034] In this embodiment, the polyamide-polypropylene blend comprises 28 parts by weight of polyamide, 8 parts of polypropylene, 2.5 parts of compatibilizer, 3.5 parts of toughening agent, and 6 parts of talcum powder blended . The polyamide mentioned above refers to a polyamide with a melting point above 210°C and an intrinsic viscosity index of 2.4. The said polypropylene is a copolymerized polypropylene with a melting point of 160°C. The compatibilizer is one or a mixture of glyceryl monostearyl ether or glyceryl monostearate. In this embodiment, the compatibilizer is glyceryl monostearate. The toughening agent is a thermoplastic elastomer toughening agent.

[0035] Weigh respectively 28 parts of polyamide, 8 parts of polypropylene, 2.5 parts of compatibilizer, 3.5 parts of toughening agent, and 6 parts of talcum powder according to the above parts by weight. The preparation method of the polyamide-polypropylene blend comprises the following step:

[0036] (1) Take co...

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Abstract

The invention discloses a polyamide-polypropylene blend and a preparation method thereof, comprising 25-30 parts by weight of polyamide, 5-10 parts of polypropylene, 2-3 parts of compatibilizer, and 3 parts of toughening agent ‑4 parts and 5‑7 parts of talcum powder are blended. Compared with the prior art, the polyamide-polypropylene blend of the present invention improves the compatibility of polyamide and polypropylene by adding compatibilizer, toughening agent and talcum powder in polyamide and polypropylene blend , to avoid uneven dispersion of polyamide and polypropylene, so that the polyamide-polypropylene blend has better mechanical properties.

Description

technical field [0001] The invention relates to the technical field of food plastic packaging raw materials, in particular to a polyamide-polypropylene blend and a preparation method thereof. Background technique [0002] Polyamide, commonly known as nylon, is a thermoplastic engineering plastic widely used in automobiles, electronics, machinery, instrumentation and other fields. Polyamide has excellent wear resistance, oil resistance and wide temperature range, but its disadvantages are high water absorption, poor dimensional stability, low temperature and low dry impact strength, which largely limit its application . [0003] Polypropylene is a widely used thermoplastic, with rich sources of raw materials, low price, good comprehensive performance, and occupies an important position in plastics. Compared with polyamide, polypropylene hardly absorbs water and is not affected by the humidity of the use environment, but polypropylene has disadvantages such as large molding ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L23/14C08L101/00C08K3/34C08K5/103C08K5/06
CPCC08L77/00C08L2205/06C08L2205/08C08L2207/04C08L23/14C08L101/00C08K3/34C08K5/103C08K5/06
Inventor 伍京栋
Owner 台山市腾达塑料制品有限公司
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