国产精品日韩欧美大师,范冰冰外国黑片,欧美重囗味sm群虐视频,h狠狠躁死你h出轨高h,成人精品视频99在线观看免费,丰满的乳房,男男gay亚洲帅哥在线,国外精品视频在线观看免费,国产全肉乱妇杂乱,公和我做好爽

	設(shè)為首頁(yè)
	加入收藏
	聯(lián)系我們

中文版 | ENGLISH

公司簡(jiǎn)介 | 產(chǎn)品介紹 | 應(yīng)用動(dòng)態(tài) | 聯(lián)系方式 | 友情鏈接

產(chǎn) 品介紹

產(chǎn) 品展示-->-->HPMC

Hydroxy Propyl Methyl Cellulose (HPMC)

Industrial grade

STRUCTURE FORMULA:

n: degree of polymerization， R:—H，—CH₃ or —CH₂CHOHCH₃

CAS NO.: 9004-65-3

SPECIFICATIONS:

Index	Type
Index	60ZC	65ZC	75ZC
Methoxyl content(WT%)	28.0-30.0	27.0-30.0	19.0-24.0
Hydroxypropoxyl content(WT%)	7.0-12.0	4.0-7.5	4.0-12.0
Gelation temperature(ºC)	58.0-64.0	62.0-68.0	70.0-90.0
PH value(1% solution ,25ºC)	4.0-8.0
Ash content(WT%)	≤ 1.0
Loss on drying (WT%)	≤ 5.0

VISCOSITY : (2% solution at 20ºC)

Specification	Range
40,000	38,000-42,000
80,000	77,000-83,000
100,000*	4,100-5,600

*the viscosity of 1% solution at 20ºC.

CHARACTERS:

1.Appearance: White or light gray pellet or fibril power with odorless and tasteless.
2. Pellet: 100 screen passable rate is over 98.5%,80 screen passable rate is 100%.
3. Solubility: It can dissolve in some organic solvents or some water-organic components. Hardly dissolves in waterless ethanol, ether or acetone. Expands as to clear or slightly muddy colloid solution in cold water.
4. Apparent density:0.25-0.70g/cm³, density:1.26-1.31g/cm³.

APPLICATIONS:

Chemical ingredient HPMC are widely used in food ,cosmetic and other daily use chemical lines, Typical usage as following:

1. Construction: it can be used for sticking tile, marble or plastic while laying, plastering, wedging, and especially in decorating.
2. Paiting: it can be used as thickeners, making the coat bright and exquisite.
3. Mixed powder: it can improve the water-keeping and felt strength properties in plaster.

DISSOLVING PROCESS:

HPMC will agglomerate when directly added to water and then dissolve. In this way it dissolves very slow and hard, suggested methods as followers:

Method 1: Add the total water to container and heated to 85ºC. Add HPMC with slowly stiring. At first HPMC will float on the water and then disperse. Stir to cool and it turn to transparent.

Method 2. Add water in container to 1/3 or 2/3 of its total content. Heated to over 80ºC.Because HPMC doesn’t dissolve in hot water, it uniformly disperses in hot water. Add cool water or ice to the residual content, stir and cool down the mixture.

Method 3. Mix HPMC with identical or more volume of other powder, disperses them sufficiently then add water to the mixture, then HPMC dissolves without agglomeration.

Method 4. Dispersed or wet HPMC with organic solvents such as ethanol, glycol or oil, then add water, HPMC will completely dissolves.

PACKING:

20kg or 25kg package in polyethylene bag or barrel with inner liners.

STORAGE & TRANSPORT:

Keep dry where good ventilated. Keep from sunshine when transport.