Gred getah ZnO
MST Gred getah ZnO is a white or slightly yellow fine powder, which is easily dispersed in rubber and latex. It is a reinforcing agent, active agent and vulcanizing agent for natural rubber and synthetic rubber.
Nama Produk |
Zink oksida |
Formula molekul |
ZnO |
CAS NO |
1314-13-2 |
EINECS BIL |
215-222-5 |
Ketumpatan |
5.606g / cm3 |
Berat molekul |
81.38 |
Takat lebur |
1975â „ƒ |
Takat didih: |
2360ºC |
Kesucian |
0.99 |
Kandungan bahan aktif |
0.997 |
KOD H.S |
2817001000 |
Penampilan |
Serbuk putih orcrystal |
Peranan gred ZnOrubber dalam sebatian getah:
1. Gred getah ZnO acts as an activator or accelerator in the formulation,
2. Gred getah ZnO can be used as an acid absorbent. When the rubber is vulcanized, it can absorb certain natural substances produced by the vulcanization reaction, such as HCl and so on.
3. Gred getah ZnO can improve the thermal performance of the rubber compound.
4. Gred getah ZnO can activate the entire vulcanization system,Zinc oxide and stearic acid together form zinc soap, improve the solubility of zinc oxide in the rubber compound, and form a complex with the accelerator, which is particularly active , It reacts with sulfur to form a strong vulcanizing agent.
5. Gred getah ZnO can increase the crosslink density. Zinc oxide reacts with stearic acid to form Zn2++ salt, which chelates with the pendant group of the sulfur-containing rubber accelerator to stabilize the weak bond and change the cleavage position of the sulfur bond. Vulcanize rubber to generate shorter cross-links, increase new cross-links, and increase cross-link density.
6. Gred getah ZnO can improve the aging resistance of the vulcanized rubber. During vulcanization and use, the polysulfide bond breaks, and the generated H2S will accelerate the cracking of the rubber. Zinc oxide will react with it to form new cross-linked bonds, stabilize the vulcanized network, and improve the resistance Aging performance.
Standard: ã € ŠGB / T3185-2016ã € ‹ |
|||
Item |
Jenis1 |
Jenis2 |
Jenis3 |
Zink oksida(Zn0 yang dikira sebagai bahan kering)% â ‰ ¥ |
99.7 |
99.7 |
99.5 |
Kandungan logam ( seperti Zn)% â ‰ ¤ |
tiada |
tiada |
0.008 |
Perkara Tidak Larut dalam Hci% â ‰ ¤ |
0.006 |
0.008 |
0.03 |
Kerugian pencucuhan% â ‰ ¤ |
0.2 |
0.2 |
0.25 |
Residu pada ayak (45um)% â ‰ ¤ |
0.1 |
0.15 |
0.2 |
Bahan larut air% â ‰ ¤ |
0.1 |
0.1 |
0.15 |
Bahan tidak menentu pada 105â „ƒ% â ‰ ¤ |
0.3 |
0.4 |
0.5 |
Plumbum (pbï¼ ‰% â ‰ ¤ |
0.008 |
0.05 |
0.1 |
Tembaga (Cu)% â ‰ ¤ |
0.0002 |
0.0004 |
0.0007 |
ManganeseMnï¼ ‰% |
0.0001 |
0.0001 |
0.0003 |
Kadmium (Cdï¼ ‰% |
0.002 |
0.005 |
0.01 |
Besi (Feï¼ ‰% |
0.005 |
0.01 |
— |
Luas permukaan tertentu(m2 / g) |
setuju |
— |
|
Penyerapan minyak * / g / 100g |
setuju |
||
Warna * (dibandingkan dengan sampel standard) |
setuju |
||
Daya perubahan warna * (dibandingkan dengan contoh standard) â ‰ ¥ |
setuju |
Milestone Industrialco. ltd., sebagai perusahaan yang mengkhususkan diri dalam produksi zink oksida selama 30 tahun, bergerak menuju arah baru, yaitu, berdasarkan produksi, berasaskan industri, perolehan global, penjualan global, integrasi perdagangan dalam dan luar negeri, integrasi hulu dan hilir, A perusahaan global dengan keupayaan nilai tambah yang komprehensif dan daya saing gabungan semakin maju.