天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

POLY(4-METHYL-1-PENTENE)

POLY(4-METHYL-1-PENTENE) Struktur
25068-26-2
CAS-Nr.
25068-26-2
Englisch Name:
POLY(4-METHYL-1-PENTENE)
Synonyma:
POLY(4-METHYL-1-PENTENE);poly(1-isopropylethylene);4-Methyl-1-pentene polymer.;4-methyl-1-pentenhomopolymer;4-methyl-1-pentene homopolymer;POLY(4-METHYLPENTENE-1)(ATACTIC);4-METHYL-1-PENTENE POLYMER ATACTIC;POLY(4-METHYL-1-PENTENE) HIGH &;POLY(4-METHYL-1-PENTENE) ISO 9001:2015 REACH;Poly(4-methyl-1-pentene), low molecular weight
CBNumber:
CB2229379
Summenformel:
C6H12
Molgewicht:
84.15948
MOL-Datei:
25068-26-2.mol

POLY(4-METHYL-1-PENTENE) Eigenschaften

Schmelzpunkt:
240 °C
Siedepunkt:
0.83 °C
Dichte
0.835 g/mL at 25 °C
Brechungsindex
n20/D 1.463
Aggregatzustand
Beads
Farbe
Clear
CAS Datenbank
25068-26-2
EPA chemische Informationen
1-Pentene, 4-methyl-, homopolymer (25068-26-2)

Sicherheit

S-S?tze: 24/25
WGK Germany  3
HS Code  39029090

POLY(4-METHYL-1-PENTENE) Chemische Eigenschaften,Einsatz,Produktion Methoden

S-S?tze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

Poly(4-methyl-1-pentene) was first introduced in 1965 by Imperial Chemical Industries Ltd (UK) but since 1975 the polymer has been manufactured solely by Mitsui Petrochemical Industries Ltd. Polymerization is carried out using a Ziegler-Natta catalyst such as titanium trichloride/diethylaluminium chloride in a hydrocarbon diluent at atmospheric pressure and 30-60°C:
Polymerization
The commercial material contains a comonomer, possibly 1-hexene, which enhances clarity. The polymer configuration is predominantly isotactic. Generally, this material has the basic physical properties to be expected from a crystalline polyolefin but in some respects it offers significant improvements over other polyolefins. One outstanding property of poly(4-methyl-l-pentene) is the very low specific gravity, which at 0.83 is the lowest of current polymers. The crystalline melting point is 240°C and the Vicat softening temperature is 179°C; these high values mean that a useful form stability is maintained up to about 200°C. The transparency of the polymer is of a high order, being comparable to poly(methyl methacrylate) and polystyrene. Poly(4-methyl-l-pentene) exhibits resistance to oxidizing and other chemical environments broadly similar to that shown by polypropylene; however, poly(4-methyl-l-pentene) does undergo environmental stress cracking comparable to low density polyethylene. The permeability of poly(4-methyl-I-pentene) to gases and water vapour is considerably higher than that for other polyolefins. Poly(4-methyl-l-pentene) may be extruded and injection moulded using standard equipment. The material has been used in several applications where transparency and heat resistance are required, e.g. medical and laboratory ware.

Verwenden

Coating for paper food containers for microwave and conventional ovens. Release coatings for food and synthetic leather. Molded into medical labware. Film for decorative laminates and printed circuit boards.

POLY(4-METHYL-1-PENTENE) Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


POLY(4-METHYL-1-PENTENE) Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 30)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28172 58
Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873
sales@chemdad.com China 39894 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250
1026@dideu.com China 22784 58
Alfa Chemistry

Info@alfa-chemistry.com United States 24072 58
Aladdin Scientific
+1-+1(833)-552-7181
sales@aladdinsci.com United States 52924 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 021-61259108 18621169109
market03@meryer.com China 40228 62
Thermo Fisher Scientific 800-810-5118
cnchemical@thermofisher.com China 17770 75
Suzhou yacoo science co.,Ltd 0512-87182056 18013166090
lingling.qi@yacoo.com.cn China 7295 60
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939
shenlinxing@macklin.cn China 16166 55
Sigma-Aldrich 021-61415566 800-8193336
orderCN@merckgroup.com China 51456 80

25068-26-2()Verwandte Suche:


  • POLY(4-METHYL-1-PENTENE)
  • POLY(4-METHYLPENTENE-1)(ATACTIC)
  • 4-methyl-1-pentenhomopolymer
  • 4-METHYL-1-PENTENE POLYMER ATACTIC
  • POLY(4-METHYL-1-PENTENE), MEDIUM MOLECUL AR WEIGHT
  • POLY(4-METHYL-1-PENTENE) HIGH &
  • POLY(4-METHYL-1-PENTENE), LOW MOLECULAR WEIGHT, MELT INDEX 180
  • Poly(4-methyl-1-pentene), high molecular weight
  • poly(1-isopropylethylene)
  • Poly(4-methyl-1-pentene), low molecular weight
  • 4-Methyl-1-pentene polymer.
  • 4-methyl-1-pentene homopolymer
  • POLY(4-METHYL-1-PENTENE) ISO 9001:2015 REACH
  • 25068-26-2
  • CH2CHCH2CHCH32n
  • Butene and Higher
  • Hydrophobic Polymers
  • Materials Science
  • Polymer Science
  • Polymers
  • Butene and Higher
  • Hydrophobic Polymers
  • Olefins
Copyright 2019 ? ChemicalBook. All rights reserved