Why think of PP as possible replacement for PE?
-To reduce weight of blade, the volume has to be reduced.
-Reducing the volume of PE will reduce the weight, but also the strength.
-Enough quantity of PE has to be removed to make room for possible reinforcement
-Reducing too much PE will mean:
1. much reinforcement will be needed to make up for strength... cost
2. less plastic for binding the fiber... brittleness?
3. weight issues if fiber is not light
PP has high strength.
Much quantity can be removed and little fiber added.
Original strength will be achieved
But PP is stiff.
Type of reinforcement chosen needs to take care of this.
-To reduce weight of blade, the volume has to be reduced.
-Reducing the volume of PE will reduce the weight, but also the strength.
-Enough quantity of PE has to be removed to make room for possible reinforcement
-Reducing too much PE will mean:
1. much reinforcement will be needed to make up for strength... cost
2. less plastic for binding the fiber... brittleness?
3. weight issues if fiber is not light
PP has high strength.
Much quantity can be removed and little fiber added.
Original strength will be achieved
But PP is stiff.
Type of reinforcement chosen needs to take care of this.
No comments:
Post a Comment