Permanent antistatic masterbatch, permanent antistatic PA66/PA6/HDPE alloy and preparation methods of the permanent antistatic masterbatch and the permanent antistatic PA66/PA6/HDPE alloy

Abstract

The invention provides a permanent antistatic masterbatch. The permanent antistatic masterbatch comprises 1 to 15 wt% of alkali metal salts, 0.1 to 2 wt% of anti-oxidants, 0.1 to 2 wt% of one or more heat stabilizers, 0.01 to 10 wt% of an auxiliary antistatic agent, and 71 to 95 wt% of high-molecular materials containing polyether blocks. The invention also provides a permanent antistatic PA66 / PA6 / HDPE alloy prepared from the permanent antistatic masterbatch. The permanent antistatic PA66 / PA6 / HDPE alloy comprises 2 to 8 wt% of the permanent antistatic masterbatch, 20 to 23 wt% of PA66, 20 to 23 wt% of PA6, 40 to 52 wt% of HDPE and 1 to 5 wt% of compatilizers. The invention also provides preparation methods of the permanent antistatic masterbatch and the permanent antistatic PA66 / PA6 / HDPE alloy. The preparation methods comprise the following steps of respectively mixing the ingredients for 1 to 10 minutes, carrying out discharging and carrying out extrusion granulation. The permanent antistatic masterbatch has surface resistivity of 102 to 103 omega.m, lasting antistatic effects, a low addition amount and good compatibility with multiple resins. The permanent antistatic PA66 / PA6 / HDPE alloy has surface resistivity of 106 to 108 omega.m, high comprehensive mechanical properties, a low cost and good hear resistance.

Description

technical field [0001] The invention relates to the field of antistatic materials, in particular to an antistatic master batch, an alloy material made of the same and a preparation method for the two. Background technique [0002] Due to its good comprehensive mechanical properties, high heat resistance, good wear resistance, self-lubricating properties, good flame retardancy, excellent chemical corrosion resistance, excellent barrier properties and other properties, nylon has become the most suitable for current applications. Wide range of engineering plastics. HDPE is non-toxic, odorless, low density, low price, good electrical properties, good anti-permeability, such as air permeability or water vapor permeability, and high impact resistance, suitable for making general mechanical parts, Corrosion-resistant parts and automobiles, electrical parts and wires and cables, etc. [0003] Adding HDPE to nylon can effectively improve its hygroscopicity and improve the stability...

AI Technical Summary

Problems solved by technology

However, PA66 / PA6 / HDPE alloy has good electrical insulation like most polymer materials, and its surface resistivity is generally 10 13 -10 15 Ω.m, the conductivity is much smaller than that of metal materials, and when PA66 / PA6 / HDPE alloys are in contact with or rubbed with other substances, they are easy to accumulate static charges

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