EPE pearl wool material and preparation method thereof

A technology of pearl cotton and masterbatch is applied in the field of packaging materials to achieve the effects of saving a lot of costs, improving production safety and reducing explosion risks.

Active Publication Date: 2019-03-19
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using CO 2 EPE pearl cotton material with good performance as foaming agent, no cell shrinkage, and high expansion ratio has not been reported yet.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • EPE pearl wool material and preparation method thereof
  • EPE pearl wool material and preparation method thereof
  • EPE pearl wool material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of EPE pearl cotton material, by weight, it comprises following component:

[0040] 100 parts of LDPE resin pellets, 0.5 parts of talcum powder, 3 parts of monoglyceride, 5 parts of stable masterbatch, 10.9 parts of mixed blowing agent; wherein, mixed blowing agent is 4.1 parts of isobutane and 6.8 parts of carbon dioxide, carbon dioxide The weight accounts for 62% of the total weight of the blowing agent mixed.

[0041] It is prepared by the following method:

[0042] Heat the extrusion foaming machine to heat up; add LDPE pellets, talc powder, monoglyceride, stable masterbatch and mixed foaming agent to the extrusion foaming machine, and after fully mixing, extrude through the die, cool, Shaping, flattening, traction and coiling are enough. Among them, the mixed foaming agent is mixed by injecting carbon dioxide and isobutane into the extruding foaming machine unit at the same time according to the metering method of the carbon dioxide pump and the butane pum...

Embodiment 2

[0044] A kind of EPE pearl cotton material, by weight, it comprises following component:

[0045] 100 parts of LDPE resin pellets, 0.7 parts of talcum powder, 2 parts of monoglyceride, 4 parts of stable masterbatch, 12.9 parts of mixed blowing agent; wherein, mixed blowing agent is 6.1 parts of isobutane and 6.8 parts of carbon dioxide, The weight of carbon dioxide accounts for 53% of the total weight of the mixed blowing agent.

[0046] It is prepared by the following method:

[0047] Heat the extrusion foaming machine to raise the temperature; add LDPE pellets, talc powder, monoglyceride and mixed foaming agent into the extrusion foaming machine, and after mixing thoroughly, extrude through the die, cool, shape, flatten, It can be pulled and coiled. Among them, the mixed foaming agent is mixed by injecting carbon dioxide and isobutane into the extruding foaming machine unit at the same time according to the metering method of the carbon dioxide pump and the butane pump.

Embodiment 3

[0049] A kind of EPE pearl cotton material, by weight, it comprises following component:

[0050] 100 parts of LDPE resin pellets, 1 part of talcum powder, 1.5 parts of monoglyceride, 2 parts of stable masterbatch, 16 parts of mixed blowing agent; wherein, mixed blowing agent is 9.2 parts of isobutane and 6.8 parts of carbon dioxide, carbon dioxide The weight accounts for 43% of the total weight of the blowing agent mixed.

[0051] It is prepared by the following method:

[0052] Heat the extrusion foaming machine to raise the temperature; add LDPE pellets, talc powder, monoglyceride and mixed foaming agent into the extrusion foaming machine, and after mixing thoroughly, extrude through the die, cool, shape, flatten, Traction, coiling, that's it. Among them, the mixed foaming agent is mixed by injecting carbon dioxide and isobutane into the extruding foaming machine unit at the same time according to the metering method of the carbon dioxide pump and the butane pump.

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Abstract

The invention discloses an EPE pearl wool material and a preparation method thereof. The EPE pearl wool material contains the following raw material components in parts by weight: 90-100 parts of LDPEresin particle materials, 0.5-3 parts of a nucleating agent, 1-3 parts of monoglyceride, 0.1-5 parts of a stable master batch and 10-20 parts of a mixed foaming agent, wherein the mixed foaming agentcontains a mixture of CO2 and butane, the weight of CO2 is less than or equal to 75% of the total weight of the mixed foaming agent, and the use amount of CO2 is not zero. By selecting proper types and proportions of the mixed foaming agent as well as the components, the foaming agent in the foam holes can be exchanged with air as quickly as possible in the premise that the foam holes of the EPEpearl wool material do not collapse and the product does not shrink, and the storage curing process of the EPE pearl wool material is shortened; the EPE pearl wool material has condense and uniform foam holes and relatively good properties such as buffer shockproof property; and the curing period required for stabilizing the foam holes is shortened, so that the supply period of the product is shortened.

Description

technical field [0001] The invention relates to packaging materials, in particular to an EPE pearl cotton material and a preparation method thereof. Background technique [0002] EPE pearl cotton is a non-cross-linked closed-cell structure, usually made of low-density polyethylene (LDPE) foamed with butane as a physical foaming agent. It has the properties and advantages of shock resistance, sound insulation, heat insulation, water and moisture resistance, and is widely used Applied to sound insulation, heat insulation materials, thermal insulation materials, life-saving materials in industrial production, as well as internal and external packaging of household appliances, computers, audio, handicrafts, fragile gifts, etc. EPE pearl cotton not only has a lot of advantages, but also its waste can be recycled repeatedly without polluting the environment. It is a new type of environmentally friendly packaging material. With the advancement of technology, pearl cotton is showin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/34C08J9/14C08J9/12
CPCC08J9/122C08J9/141C08J2203/06C08J2323/06C08J2203/14C08J2203/182C08J2423/08C08K3/34
Inventor 刘涛曹志怀金耿
Owner EAST CHINA UNIV OF SCI & TECH
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