In this paper the buffering capacity of several substitutes growing media which made by composted agricultural cast-offs were studied.

This paper studied the preparation principle, processing, the cushioning property of the using cushioning packaging materials and the environment-friendly cushioning packaging materials, and the advantages and the disadvantages of the using cushioning packaging materials.

It provides excellent cushioning properties for either small load and big load.

Testing show that as the n value increases,the alkalinity,solubility of sodium polysilicate and the amount of combined Ca~(2+),Mg~(2+) are reduced,but its buffer property rises and when n≥5,the solubility is lower,Different sodium polvsilicates have little effect on the decontamination of Dacron cloth,but as to cotton cloth,the decontamination ratio becomes greater as the n value rises.

Dissolvability,basicity and buffer property of sodiu m polysilicate with different composition were studied.

Air-bag has good cushioning feature.

This paper lays an emphasis on the cushioning property of haoneycomb board,takes example for the electric cooker,uses haoneycomb board as cushioning material for cushioning design,including structure design,dimension design and checkout.

The results showed that the residual yield stress descends,cushion coefficient increases,and cushioning performance of honeycomb cardboard decreases with the number of vibration and acceleration increased.