Low odor and emission nylon 6 composition and preparation method thereof

Abstract

The invention discloses low odor and distribute nylon 6 combination which comprises the following components in proportion by weight: 55 to 99% of nylon 6, 0 to 6% of polypropylene grafted with maleic anhydride, 0 to 30% of inorganic filler, 0.5 to 3.5 of hydrophobic odor adsorbent, 0.1 to 1% of antioxidant, 0 to 2% of lubricant and 0 to 3% of other accessory ingredient. The invention has the advantages that a hydrophobic odor adsorbent system is used, when the low odor characteristics of the materials are ensured by the low odor and distribute nylon 6 combinations, various physical mechanics capabilities of the materials are not influenced, and the contour machining property of the materials is not influenced.

Description

technical field [0001] The invention relates to a low-odor, low-emission nylon 6 composition and a preparation method thereof, which can be used for automotive parts, home appliance parts, etc. that have higher requirements on odor and total carbon emission performance. Background technique [0002] Nylon 6 is a general-purpose engineering plastic with excellent comprehensive properties. It has excellent mechanical properties and the advantages of wear resistance, solvent resistance, and oil resistance. The more extensive, and the great concern of the majority of users. Since its industrialization half a century ago, its application fields have continued to expand, and it has become the main material for the automotive industry and electronic appliances, and has developed into the world's largest engineering plastic. Although nylon material has many advantages, due to the volatilization of residual monomers during the polymerization process during the molding process, the o...

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Problems solved by technology

However, because activated carbon itself is black, it can only be used in black materials, so it has little practical value.

Moreover, there is a common defect in the application of all the above-mentioned adsorbent systems in nylon 6-they are all hydrophilic adsorbents, that is, when they adsorb volatile small molecules and organic compounds in the resin material, it is inevitable The ground will absorb the surrounding moisture into the system, and any trace of moisture may cause the hydrolysis of the nylon and deteriorate the physical properties of the entire alloy. In addition, it is easy to cause the surface of the material to appear during subsequent molding processes Serious processing problems such as "water splash" and "silver thread"

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