Wuhan Handern Cushion Packaging Materials
DATE：2020/11/9 8:33:38 / READ： / SOURCE：This station
Wuhan Handern Cushion Packaging Materials
Any packaging material that can absorb or slow down the impact and vibration of the packaged product under the action of external force during the transportation, loading and unloading process, and protect the effect of the crystal is called Wuhan modern buffer packaging material. The scope of cushioning packaging materials is very wide: straw, paper, various fibers, wood chips, foam plastics, etc. www.handern.com Hollow Board Equipment
1. The packaging characteristics of cushioning packaging materials are as follows
First, the absorption of impact energy: that is, it has a good absorption effect on the impact of the product; second, the vibration absorption: In addition to the external impact, the packaged product is also affected by the movement and speed of the paper. If the natural frequency of the product is the same as the rate of the external force of the vibration, resonance and resonance will occur, and the amplitude will increase. When it reaches a certain value, the product will be damaged. The cushioning packaging material can absorb the external force of vibration and attenuate the amplitude; third, the resilience: the cushioning packaging material will deform under the external load condition, but the external load can be removed and the original form can be restored, namely: static load and impact to the outside world. The deformation caused by the dynamic load of vibration has good resilience; first, compression denaturation: the phenomenon that the cushioning packaging material undergoes slow deformation with time under the continuous action of static load is called defrosting wax degeneration. This compression deformation should The smaller the better; fifth, flexibility, good flexibility; sixth, applicable temperature and humidity: cushioning packaging materials can maintain their good cushioning properties at low temperatures, for example: polyurethane foam can make rain to -300 , PS foam can be used at a minimum temperature of -20C, PE foam can be used to -50°C: Seventh, buffer packaging applications have good acid, alkali, grease, organic solvent and salt resistance, and light resistance: good antistatic It is easy to process and form, easy to operate, and the price is cheap. The waste is easy to be reused and burnt but processed, and does not cause environmental pollution. www.handern.comwww.handern.com Hollow Board Equipment
2. Classification of Wuhan Modern Plastic Buffer Packaging Materials
There are many ways to classify plastic cushioning packaging materials (see Table 6-1-1), but they are roughly classified as follows:
①According to the structure of cushioning packaging materials, there are two types of foam plastic and air cushion plastic film;
②According to plastic resin, there are thermoplastic foams, such as: PE, PP, PS, PVC, etc., and thermosetting foams, such as foam, formaldehyde foam, polyurethane foam, etc.; according to the hardness of the foam, there are: 23 ℃50%R, H. The elastic modulus of foam plastic> 700MPa is called rigid foam: 700～70MPa is semi-rigid foam plastic; <70MPa is soft foam plastic; www.handern.com hollow board equipment
③According to the density of the foam, the density above 0.4g/cm2 (gas/solid ratio <1.5) is called low power generation density 0.1～0.4g/cm' as medium foaming (gas/solid ratio) 1.5-9); Density below 0.1g/cm2 (gas/solid ratio>9) is a highly foamed foam. Or divided by foaming ratio, low foaming with foaming ratio below 5, high foaming with foaming ratio above 5 www.handern.com meltblown non-woven fabric equipment
According to the structure of the cell, there are open-cell foam and closed-cell foam
In addition, it can be classified according to the shape of the foam, including: foam board, foam sheet, foam profile, foam block, granular foam, foam pipe, reticulated foam, etc.; according to whether the plastic is cross-linked or not, there are non-cross-linked bubbles and Cross-linked foam www.handern.com hollow board equipment
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