KMT Brucite in PVC Compound Mechanical Properties

KMT Brucite in PVC Compound Mechanical Properties

By:

Ara king and Frank Chen

KMT INDUSTRIAL HK LIMITED 

www.kmtindustrial.com

.

This article focus on to confirm:

– The effect of different brucite percentage on the mechanical properties of brucite

– The effect of stearic acid surface coating on the mechanical properties of brucite

– The effect of different particle size on mechanical properties of brucite

.

Materials prepare:

XK-1250SA/9090: particle size D50 3-4micros, coated with stearic acid

XK-5000SA/9090: particle size D50 2-3micros, coated with stearic acid

XK-5000/9090: particle size D50 2-3micros, uncoated grade brucite

.

We designed three group test:

  1. The first group: XK-1250SA/9090 with 20%, 40%, 60% percentage in PVC formula.
  2. The second group: XK-5000SA/9090 and XK-5000/9090 compare.
  3. The third group: XK-1250SA/9090 and XK-5000SA/9090 compare.

.

Key words: PVC cable compounds, natural brucite, magnesium hydroxide, stearic acid coated.

.

The first group: XK-1250SA/9090 with 20%, 40%, 60% percentage in PVC formula.

.

.

Test result:

With the brucite percentage increase, the MFI decreases; 20% of the proportion has the best MFI, which is 4.8.

.

With the brucite percentage increase, the elongation at break decreases; the elongation at break of 20% brucite is the highest, which is 344%.

.

With the brucite percentage increase, the tensile strength decreases; the addition ratio of 20% brucite has the highest tensile strength, which is 19.15.

.

With the brucite percentage increase, the limiting oxygen index increases; the limiting oxygen index of 60% brucite is the highest, which is 31.2.

.

.

The second group: XK-5000SA/9090 and XK-5000/9090 compare.

.

Test result:

.

2.1  As follows table we can see, when brucite adds percentage was 20%, MFI is same; Elongation at break (%) stearic acid coated grade is better; Tensile Strength (MPa) uncoated grade is better.

.

Table 3.

 MFI(190℃.5KG)Elongation at break (%)Tensile Strength (MPa)
XK-5000SA  (20%)4.438619.15
XK-5000/92  (20%)4.437022.3

2.2  As follows table we can see, when add percentage was 40%, MFI stearic acid coated grade is better; Elongation at break (%) stearic acid coated grade is better; Tensile Strength (MPa) uncoated grade is better.

.

Table 4.

 MFI(190℃.5KG)Elongation at break (%)Tensile Strength (MPa)
XK-5000SA  (40%)3.835516.8
XK-5000/92  (40%)3.734019.6

.

2.3  As follows table we can see, when add percentage was 60%, MFI stearic acid coated grade is better; Elongation at break (%) stearic acid coated grade is better; Tensile Strength (MPa) uncoated grade is better.

.

Table 5.

 MFI(190℃.5KG)Elongation at break (%)Tensile Strength (MPa)
XK-5000SA  (60%)2.829214.9
XK-5000/92  (60%)2.626017.5

.

The third group: XK-1250SA/9090 and XK-5000SA/9090 compare.

3.1  As follows table we can see, when add percentage was 20%, MFI XK-1250SA/9090 grade is better; Elongation at break (%) XK-5000SA/9090 grade is better; Tensile Strength (MPa) XK-5000SA/9090 is better.

.

3.2 As follows table we can see, when add percentage was40%, MFI XK-1250SA/9090 grade is better; Elongation at break (%) XK-5000SA/9090 grade is better; Tensile Strength (MPa) XK-5000SA/9090 is better.

.

3.3 As follows table we can see, when add percentage was 60%, MFI XK-1250SA/9090 grade is better; Elongation at break (%) XK-5000SA/9090 grade is better; Tensile Strength (MPa) XK-5000SA/9090 is better.

.

Conclusion and discussion

The effect of different brucite percentage on the mechanical properties of brucite

.

With the increase of adding proportion of Brucite, MFI, elongation at break, tensile strength and LOI increase.

.

  • The effect of stearic acid surface coating on the mechanical properties of brucite
  • .

Stearic acid coated grade: MFI higher, high elongation at break, low tensile strength.

.

  • The effect of different particle size on mechanical properties of brucite
  • .

XK-1250SA/9090 (particle size D50=3-4 um): higher MFI, lower Elongation at break, lower Tensile Strength.

.

XK-5000SA/9090 (particle size D50=2-3 um): lower MFI, higher Elongation at break, higher Tensile Strength.

.

.

.

Company Profiles…

KMT INDUSTRIAL HK LIMITED, headquartered in Gansu, China, research and manufacturer magnesium hydroxide, natural brucite powder. www.kmtindustrial.com

Contact: ara@kmtindustrial.com

Not enough? Need PDF profile? or need more articles, just contact with them!

Global Market Representative

Ms. Ara king

Mobile/whatsApp: +86 18209311736 Mail: ara@kmtindustrial.com

Our sales team

Ms. Elena Niu

Mail: elena@kmtindustrial.com

Ms. Robyn Gai

Mail: robyn@kmtindustrial.com

Ms. Olivia Ren

Mail: olivia@kmtindustrial.com

Arabic AR Dutch NL English EN French FR German DE Hindi HI Irish GA Italian IT Korean KO Persian FA Portuguese PT Russian RU Spanish ES