Long-lasting antistatic pearl cotton epe and preparation method thereof

Abstract

The invention discloses permanent antistatic pearl wool EPE (Expanded Polyethylene) and a preparation method thereof. The Permanent antistatic pearl wool EPE (Expanded Polyethylene) is prepared from the following raw materials in parts by weight: 133-142 parts of polyethylene resin, 25-36 parts of sodium lignin sulfonate, 11-16 parts of zirconium dioxide, 1-5 parts of neodymium oxide, 4-12 parts of tetrabutyl titanate and 10-15 parts of cyclohexane. The preparation method comprises the following steps: adding tetrabutyl titanate and cyclohexane into a reactor, sealing, stirring while heating, adding neodymium oxide, and stirring for 0.5-1h while heating to obtain a mixed solution A for later use; mixing sodium lignin sulfonate and zirconium dioxide and crushing to obtain a mixture B for later use; adding polyethylene resin and the mixture B into the mixed solution A, and stirring while heating to obtain a mixture C; and carrying out blow molding on the mixture C to obtain the permanent antistatic pearl wool EPE (Expanded Polyethylene). The permanent antistatic pearl wool EPE (Expanded Polyethylene) disclosed by the invention has the advantages of excellent antistatic property, stable antistatic value, greatly lowered surface damage degree, greatly lowered shrinkage degree, and greatly lowered pollution diversion degree of electronic product surfaces, no environment pollution, no luminance decrease and resistance to influences of humidity.

Description

technical field [0001] The invention relates to the field of pearl cotton, in particular to long-lasting antistatic pearl cotton EPE and a preparation method thereof. Background technique [0002] EPE pearl cotton, that is, polyethylene foamed cotton, has a non-crosslinked closed-cell structure, also known as EPE pearl cotton, and is a new type of environmentally friendly packaging material. It is composed of low-density polyethylene fat through physical foaming to produce countless independent bubbles. It overcomes the shortcomings of ordinary styrofoam that are fragile, deformed, and poor in recovery. It has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong impact resistance, etc., and also has good chemical resistance. It is an ideal substitute for traditional packaging materials. It is widely used in high-end furniture, household a...

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Problems solved by technology

[0003] At present, the vast majority of EPE pearl cotton products on the market in my country are made of low-density polyethylene resin (LDPE) through butane physical foaming, and about 0.5% of 600-1000-mesh talcum powder is added during the foaming process. As a foaming nucleating agent, talc powder has defects such as difficult measurement, dust pollution, need to be mixed with resin in advance, and the addition ratio is small, and it is difficult to control during the production process.

Plastics such as EPP and EPS that have been stacked to support products have poor insulation properties and friction with other substances will generate static electricity. Dust and other foreign substances generated by long-term accumulation will flow into the production process, which will increase the defective rate of the process.

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