Talc powder is laminated, so it has better rigidity enhancement effect

We know that the filler is made up of fillers, additives and carrier resins. There are more than one filling material. Now let's analyze talc powder.

Talc powder, as a filling material, may be second only to calcium carbonate in dosage, is also a kind of relatively chaotic fillers at present.

First of all, let's look at the effect of talc powder on filling the parent material:

1. Talc powder is flaky, so it has higher rigidity and good enhancement effect

2. Talc powder has nucleation effect on polypropylene, while other filling materials have no obvious effect.

A set of data of talc manufacturer in haicheng explains the above situation:

The tensile strength of PP matrix material is 33.7MPa. After filling PP with 20% talc powder, the tensile strength is 38MPa.

Another set of data:

15% talc powder filled PP, can increase the bending modulus from 1500MPa to 4300MPa. , of course, some idealized behind the data, but also to some extent, illustrates the talcum powder filler enhance performance, but now few people can do such a request, is this why?

The problem is the talc powder used

Few people really know what kind of talc powder they use, except how many items and prices will be concerned about other factors? That's the point.

Talc powder, as the name implies, talc grinding powder, the main component is magnesium silicate. China has a history of more than two thousand years, the application of talc was first recorded on the shennong materia medica, people familiar with the benxi steel of materia medica also recorded, li shizhen yue: talc sex smooth the know-how, its quality and satiny, so to name.

It is said that the hardest stone in the world is diamond, and the softest stone is talc. It is white, tasteless, insoluble in water, stable, strong resistance to acid and alkali. Talc, can be taken internally for external use, heat can be taken internally to dispel the heat, diuretic detumescence, external use dehumidification, point sore flesh. As you know, talcum powder was one of the things that changed the course of history.

In his book 50 minerals that change the course of history, Eric charing, a famous British science writer, explicitly listed talc as one of the 50 minerals that change the course of history. Book wrote: "the end of the 19th century, working class family children mostly more tragic fate, poor sanitation, crowded living conditions, and most children unclean water caused by infectious diseases is the cause of death, to produce diaper rash is a concrete representation of infant health standard is very low, and the diaper rash caused by skin infections can cause severe complications, no effective treatment."

Talcum powder