Low-odor polypropylene composite material and preparation method thereof

A technology of composite materials and polypropylene, applied in the field of low-odor polypropylene composite materials and its preparation, and polypropylene composite materials, can solve problems such as unpleasant and irritating odors, achieve the improvement of special irritating odor problems, low cost, The effect of lowering the odor level

Inactive Publication Date: 2019-10-11
中广核俊尔(上海)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a low-odor polypropylene composite material and its preparation method to solve the problem that the polypropylene composite material in the prior art emits an unpleasant pungent smell

Method used

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  • Low-odor polypropylene composite material and preparation method thereof
  • Low-odor polypropylene composite material and preparation method thereof
  • Low-odor polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0030] Experimental Example 1: Preparation of low-odor masterbatch

[0031] Dissolve the odor modifier in Table 1 in an aqueous ethanol solution with a mass fraction of 10% to 60%; then physically blend it with the carrier polypropylene in a proportion of 0.01% to 1.0%, and place it in a vacuum oven at 50° C. Under vacuum drying for 24h, the odor regulating master batch of polypropylene was obtained;

[0032] Table 1 The mass ratio of active ingredients in the odor regulating masterbatch 1#~10#

[0033]

[0034]

Embodiment 1～10

[0035] Examples 1-10 and Comparative Examples 1-3

[0036] Table 2 is the mass ratio of each component ratio in Examples 1-10 and Comparative Examples 1-3, wherein the odor regulating masterbatch is 2 parts by mass.

[0037] The specific preparation methods of Examples 1 to 10 are the same as those of Comparative Examples 1 to 3.

[0038] The raw materials are weighed according to the proportions of the components shown in Table 2, mixed uniformly in the high-speed mixer, placed in the main feeding bin of the meshing co-rotating twin-screw extruder, and fed into the extruder through the feeding screw. In the barrel, the talcum powder reinforced system is added to the extruder from the side feeding port. The diameter of the extruder screw is 35mm, the length-diameter ratio L / D is 40, and the vacuum degree is not lower than -0.08MPa. The temperature of each zone from the feeding port to the outlet of the machine head is set as: 180 ℃-230 ℃, the main engine speed is 400-550 r / mi...

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Abstract

The invention provides a low-odor polypropylene composite material which is characterized by being prepared from, by mass, 45%-97.6% of polypropylene, 0-40% of talcum powder, 0.4%-4% of an antioxidant, 1%-5% of an ethylene octene copolymer and 1%-5% of odor regulating master batch. The odor regulating master batch is polypropylene particles supported with an odor regulator with the mass fraction of 0.01%-1.5%, the odor regulator is a mixture of alcohols, ketones, esters and phenols with a boiling point of 90-190 DEG C. The composite material is simple in preparation process and free of influence on performance and has special fragrance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a polypropylene composite material, in particular to a low-odor polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a semi-crystalline thermoplastic. Both homopolymer and copolymer PP materials have excellent moisture absorption resistance, high impact resistance, and resistance to various organic solvent solubility. And acid and alkali corrosion resistance; it also has the advantages of low price, low density, easy processing, and reusability. However, PP has the disadvantages of large molding shrinkage, high low temperature brittleness, and easy aging. Therefore, physical or chemical modification technology is usually used, adding talc filler, glass fiber and other reinforcing materials, anti-light / thermal oxidation aging agent and other additives to improve the comprehensive properties of polypropylene materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/08C08K13/02C08K5/101C08K5/05C08K5/13C08K5/07
CPCC08L23/14C08L2205/03C08L2205/025C08L23/0815C08K13/02C08K5/101C08K5/05C08K5/07C08K5/13
Inventor 付光陈晓敏屈国梁王海华杨仓先
Owner 中广核俊尔(上海)新材料有限公司
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