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Degradable, difficult combustible, foamed damping packing material, and preparation method thereof

A cushioning packaging and foaming agent technology, applied in the field of degradable and flame-retardant cushioning packaging materials and its manufacturing, can solve problems that do not involve foaming steps

Active Publication Date: 2009-04-22
JIANGSU PACIFIC RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wang Gaosheng, Department of Packaging Engineering, Tianjin University of Commerce, etc. published the paper "Development of Crop Straw Cushioning Packaging Material" in the sixth issue of "Packaging Engineering" in 2001. This document reported that the cushioning packaging material was prepared with crop straw as the main raw material. The main raw material is mixed with rubber binder, and the green packaging material with certain strength and cushioning performance is prepared by molding technology. However, this research does not involve the foaming step, nor does it add inorganic fillers, only the core of corn stalks Natural foam structure, so that the material has a certain cushioning performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0005] The preparation process of a degradable flame-retardant foaming cushioning packaging material is divided into four processes, process 1 plasticizing process, process 2 high-speed stirring powder mixing process, process 3 mixing process, and process 4 heating and foaming process. Each step will be described below.

[0006] 1. Plasticize the natural rubber first, and use an open rubber mixer or internal mixer for the equipment. When the mastication reaches a certain degree of plasticity, stop the machine and discharge the material for use in subsequent processes. Then add plasticizer to the masticated natural rubber to make a masterbatch with certain plasticity. 2 High-speed stirring and mixing powder process, weigh each component according to the requirements of the formula, put each component into a high-speed mixer for mixing to obtain a mixed powder, and then park it for more than 24 hours for later use. 3. Mixing process: mix the masterbatch and mixed powder in an ...

Embodiment 1

[0008] In parts by weight, use 100 parts of No. 3 natural rubber to masticate in an open mill for 30 seconds, and then thin pass 3 times. Then add 5 parts of naphthenic oil, after 30-45 seconds, thin pass 3 times, and then the next piece is made into masterbatch. The average particle size of 50 parts of wheat straw powder is 0.05-0.2 mm, the average particle size of 50 parts of material sawdust is 0.5-1.0 mm, and the average particle size of 50 parts of perlite is 0.1-1 mm. 20 parts of No. 10 motor oil, 5 parts of foaming agent OBSH, 10 parts of light calcium carbonate, 15 parts of magnesium hydroxide, and 5 parts of ammonium polyphosphate are added to a high-speed mixer for stirring. The stirring time is 8-10 minutes, and the mixed material powder is released, and then parked for 24 hours for later use. Then adjust the mill so that the roller distance is 3-4mm, and the masterbatch is added when the temperature is 50±1°C. After the rolls are wrapped, the mixture powder is add...

Embodiment 2

[0010] In parts by weight, use 100 parts of No. 2 natural rubber to masticate in an open mill for 30 seconds, and then thin pass 3 times. Then add 10 parts of naphthenic oil, after 30-45 seconds, thin pass 3 times, and then the next piece is made into masterbatch. The average particle size of 60 parts of wheat straw powder is 0.05-0.2 mm, the average particle size of 65 parts of material sawdust is 0.5-1.0 mm, and the average particle size of 70 parts of perlite is 0.1-1 mm. 30 parts of No. 10 machine oil, 5 parts of foaming agent AC, 5 parts of foaming agent OBSH, 10 parts of light calcium carbonate, 25 parts of magnesium hydroxide, and 8 parts of ammonium polyphosphate were added to the high-speed mixer for stirring. The stirring time is 8-10 minutes, and the mixed material powder is released, and then parked for 24 hours for later use. Then adjust the mill so that the roller distance is 3-4mm, and the masterbatch is added when the temperature is 50±1°C. After the rolls are...

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PUM

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Abstract

This invention provides a method for producing degradable and uninflammable foaming buffer packaging material, which is produced by: mixing natural diene polymer rubber (matrix), plant fiber powder, perlite and flame retardant, molding, and adding plasticizer, softener and foamer. The flame retardant is Mg (OH) 2 or polyammonium phosphate. The obtained foaming buffer packaging material has a density of 0.1-0.2 g / cm2, a loose degree of 3000-5000 pores / cm3, a dynamic buffer coefficient of 1.0-1.2, and a static buffer coefficient of 3.5-3.9. The combustion property is FV-1 level (vertical combustion method), and the mildew immersing corrosion is IV level.

Description

technical field [0001] The invention relates to a cushioning packaging material and a manufacturing method thereof, in particular to a degradable and flame-resistant cushioning packaging material and a manufacturing method thereof. Background technique [0002] At present, the cushioning packaging materials used at home and abroad are foamed plastics such as EPS, EPE, pulp molding, cardboard, etc.; foreign countries use foaming cushioning packaging materials with starch as the main base material. EPS and EPE are non-degradable. Although pulp molding and cardboard packaging materials are degradable, they will have an impact on the environment in the early stage of papermaking. Starch-based foaming cushioning packaging materials use high-priced high-amylose deformed starch as raw materials, and their high price compared with general-purpose plastics (EPS) affects their large-scale applications. Therefore, people are looking for degradable cushioning packaging materials. Wang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L97/02C08L101/16C08K3/32B29C67/24B29C67/20C08K3/22
Inventor 武军
Owner JIANGSU PACIFIC RUBBER
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