A kind of epe pearl cotton

A technology of pearl cotton and surfactant, applied in the field of packaging material synthesis, can solve the problems of fragility, poor recovery, deformation, etc., and achieve the effect of good heat preservation performance and smooth appearance

Inactive Publication Date: 2011-12-21
LANGXI TIANCHENG PACKAGE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of ordinary styrofoa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Example 1: A kind of EPE pearl cotton is melted and kneaded by the following materials through an extruder, extruded, and the parts by weight of its components are:

[0030] LDPE 100

[0031] Filler 0.1

[0032] Masterbatch 0.004

[0033] Antistatic agent 2

[0034] Foaming agent 0.5

[0035] Surfactant 0.8.

[0036] Preparation Process:

[0037] First, low-density polyethylene, talcum powder, color masterbatch, and antistatic agent are put into the extruder according to the formula ratio, and melted and mixed by the extruder, butane gas and monoglyceride are injected from the middle of the extruder under high pressure. The method of injection is to inject into the extruder and evenly mix with the plastic that has been melted and kneaded, and then extrude the plasticized and kneaded material. After cooling, pulling, flattening and winding, EPE pearl cotton foaming products are formed. . The screw temperature of the extruder is 160°C-195°C.

example 2

[0039] A kind of EPE pearl cotton is melted and kneaded by extruder by following materials, extruded, and the parts by weight of its components are:

[0040] LDPE 100

[0041] Vermiculite powder 3

[0042] Talc powder 0.1

[0043] Masterbatch 0.004

[0044] Antistatic agent 2

[0045] Pentafluorobutane 0.5

[0046] Monoglyceride 0.8.

[0047] The production process is the same as above. Through the optimization and improvement of the above formula, the hardness and heat preservation of pearl cotton are obviously improved.

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PUM

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Abstract

The invention relates to an EPE pearl cotton which is melted and kneaded by an extruder and extruded to form the following materials. The parts by weight of the components are: low-density polyethylene 100, filler 0.08-0.12, color masterbatch 0-0.004 , Antistatic agent 1-3%, foaming agent 0.4-0.6, surfactant 0.6-0.9. The EPE pearl cotton produced by this formula has smooth appearance, shockproof, sound insulation and better thermal insulation performance.

Description

[0001] technical field [0002] The invention relates to the field of packaging material synthesis, in particular to a formula and processing technology of EPE pearl cotton. [0003] Background technique [0004] EPE (Expandable Polyethylene), is expandable polyethylene, also known as pearl cotton. It is a non-cross-linked closed-cell structure and is a new type of environmentally friendly packaging material. It is composed of low-density polyethylene fat through physical foaming to produce numerous 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 proof, shockproof, 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. [0005] Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/34C08K3/26C08J9/14
Inventor 吴卫东黄黎黎史小祥蔡群傅庆春
Owner LANGXI TIANCHENG PACKAGE MATERIALS
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