Why do some plastic pepper mills that look the same cost more and some are cheaper? They are the same pepper grinder and your price is too high! This is a question that sales people often face in business negotiations. Today, I will briefly introduce you the reason for the price difference of this plastic manual salt and pepper grinder in terms of material.
This classic pepper mill its plastic components, most will use PP or ABS production, I will analyze the advantages and disadvantages of the two materials for you to buy the best product to meet their needs.
Around us there are many kinds of plastic products, like pp, pvc, ps, abs, tpu, eva, etc. are more common, pp material in our daily life is also a large amount, we usually often use the preservation box is made of PP material. So what are the advantages and disadvantages of pp material?
Click the link to watch the product video:
https://youtu.be/j2m-2lMaCVY
It is a high-density, highly crystalline linear polymer, a thermoplastic synthetic resin with excellent performance, and is a colorless and translucent thermoplastic lightweight general-purpose plastic. Polypropylene is a non-toxic, odorless, tasteless, milky white, highly crystalline polymer with a density of only 0.90, which is one of the lightest varieties of plastics.
There are many products that pp can do, for example, the lunch box we usually pack is made of pp. In addition, common pp products include basins, buckets, furniture, films, woven bags, bottle caps, car bumpers and so on. In addition, PP microwave lunch boxes are the only plastic boxes that can be placed in the microwave oven and can be reused after careful cleaning. (Pay attention to the triangle symbol on the bottom to see if it is No. 5 pp, other materials are easy to deformation is also not heat-resistant, heating may release toxic substances, contaminated food, endangering human health.)
Advantages of PP: light weight, good toughness, good chemical resistance, high flexural strength, relatively smooth surface, also moisture-proof, low water absorption of the products made, and good chemical resistance in various acids and alkalis, strong impact resistance, good electrical insulator.
Disadvantages of PP: low dimensional accuracy, insufficient rigidity, poor weather resistance, it has the phenomenon of post-shrinkage, after demoulding, easy to age, become brittle, difficult to surface spraying.
Click on the link to see wikipedia:
https://zh.wikipedia.org/wiki/%E8%81%9A%E4%B8%99%E7%83%AF
Without considering additives, ABS is generally better than PP. Of course, the price of ABS is also higher than that of PP. This results in an inherent price difference between the two materials!
Advantages of ABS plastic: ABS plastic is hard, strong impact resistance, scratch resistance as well as dimensional stability, moisture resistance, corrosion resistance, easy processing, good light transmission, environmental protection, non-toxic, odorless, easy to dye, with electrical insulation;
Disadvantages of ABS plastic: ABS is not resistant to ultraviolet light, ABS is prone to aging under thermal oxygen conditions, burning ABS plastic is prone to atmospheric pollution, ABS is poor in terms of dissolution resistance.
Click on the link to see wikipedia:
https://zh.wikipedia.org/wiki/ABS%E6%A0%91%E8%84%82
The grinders made of these two materials are hard to distinguish from the outside, but when you hold them in your hands, you will always feel that one is cheap and the other is excellent, why?
Because you will feel that one grinder is loose, the parts are not precise, the gaps are large and it is easy to deform. But the other grinder will be much more precise and it will have a more saturated color and will not give off harsh reflections in the light.
This is because ABS has better machinability and the grinder parts are more precise, dimensionally stable and less likely to shrink.
Understanding the difference between ABS and PP, I believe it will help you in your purchase.
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