Low-odor masterbatch and preparation method thereof

A low-odor, masterbatch technology, applied in the field of low-odor masterbatch and its preparation, can solve the problems of personal injury in the car, decomposition and volatilization of harmful substances, etc., and achieve the goal of maintaining corrosion resistance, good mechanical properties, and reducing decomposition and volatilization Effect

Inactive Publication Date: 2018-05-18
江苏冠恒新材料科技有限公司
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Problems solved by technology

Although polypropylene plastic has many advantages, it has a big disadvantage that when the temperature is high, the additives or small molecular imp

Method used

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  • Low-odor masterbatch and preparation method thereof
  • Low-odor masterbatch and preparation method thereof

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Embodiment Construction

[0024] The present invention will be described in detail below by way of examples.

[0025] The polypropylene that uses in the embodiment is hp500N homopolypropylene, melt index 2-15g / 10min; Inorganic filler is the talcum powder of particle size scope 2000-2500 purpose; Antioxidant is antioxidant 1010 and antioxidant 1076 by mass A mixture of 2:1 ratio; the lubricant is a mixture of zinc stearate or calcium stearate in a mass ratio of 1:1; the odor treatment agent is a mixture of molecular sieves, synthetic zeolite and bentonite in a mass ratio of 1:1:1; The modifier is filler modifier LD-300P.

[0026] The preparation method of the masterbatch is as follows: After mixing polypropylene, talc powder, antioxidant and lubricant in proportion, stir in a high-speed mixer for 8 minutes, and mix thoroughly; when the temperature reaches 120°C, put the mixture into the banburying When the mixture reaches 180°C in the internal mixer, add odor treatment agent and modifier; when the temp...

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Abstract

The invention discloses a low-odor masterbatch and a preparation method thereof, wherein the raw materials comprise 20-30% of polypropylene, 70-80% of an inorganic filler, 0.3-1.5% of an antioxidant,0.6-1% of a lubricant, 0.3-5% of an odor treatment agent, and 1-5% of a modifier. The preparation method comprises: preparing polypropylene, an inorganic filler, an antioxidant and a lubricant according to a certain ratio, stirring for 5-10 min in a high speed stirrer, completely mixing, pouring the mixing material into a mixer when the temperature is 120-130 DEG C, mixing, adding an odor treatment agent and a modifier when the temperature of the mixing material in the mixer is 150-190 DEG C, pouring the obtained mixture into a twin-screw extruder when the temperature is 160-210 DEG C, and extruding to prepare the product. According to the present invention, with the low-odor masterbatch, the easily volatile organic matters in polypropylene plastic can be effectively treated without the changing of the properties of the plastic product, such that the plastic product achieves the desired low odor level requirements.

Description

technical field [0001] The invention relates to a masterbatch and a preparation method thereof, in particular to a low-odor masterbatch and a preparation method thereof. Background technique [0002] Polypropylene plastic products are more and more used in automobile manufacturing, such as interior materials, bumpers and so on. Its main advantages are low odor, waterproof and corrosion resistance, good mechanical properties and impact resistance. Although polypropylene plastic has many advantages, it has a big disadvantage that when the temperature is high, the additives or small molecular impurities in the polypropylene plastic in the car will decompose and volatilize harmful substances, which will harm the people in the car. bodily harm. Therefore, how to reduce or suppress volatile substances in polypropylene plastics, or to find harmless alternatives has become the key to solving this problem. Patent CN200910221208.5 discloses a low emission modified polypropylene com...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/04C08K3/34C08K5/134C08K5/098C08K7/26C08J3/22
CPCC08J3/226C08J2323/12C08J2423/12C08K3/34C08K3/346C08K5/098C08K5/1345C08K7/26C08K13/04C08K2201/014
Inventor 夏国龙
Owner 江苏冠恒新材料科技有限公司
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