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VINNAPAS® C 305

VINNAPAS® C 305 is a solid, colorless to pale yellowish copolymer of vinyl acetate and crotonic acid.



特性

  • VINNAPAS® C 305 is a physically drying, thermoplastic binder which forms films through solvent evaporation. When appropriate solvents are used, the dry films are odorless.

免责声明

所提供之所有信息均基于我们当前所掌握的知识。尽管如此,我们不对其作任何担保、也不承担任何责任,并且保留在任何时候进行技术变更的权利。购买方应在预测试中对所提供之信息以及产品在既定应用中的适应性进行检查。任何时候都必须以合同条款与条件为准。此外,本免责申明还适用于与第三方权利有关之事宜,尤其是在德国境外。

Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request from WACKER subsidiaries or may be downloaded via WACKER web site http://www.wacker.com.

Typical applications for VINNAPAS® C 305:

  • moisture-sensitive adhesives
  • finishes for the textile and hat industries
  • inks for fabrics, leather. Marks made with such inks can easily be removed with slightly alkaline water.
  • lacquers removable by aqueous alkali, often in combination with hard resins.

Processing - Product data

Melt viscosity, 100% Polymer

Bohlin high temperature viscosimeter

100 °C                      ~ 7000 Pa·s

120 °C                      ~ 2000 Pa·s

140 °C                      ~  300 Pa·s

160 °C                      ~   80 Pa·s


Solvents

VINNAPAS® C 305 is soluble in esters, ketones and methanol. Solutions in 94% ethyl alcohol are turbid, but the films deposited from them are almost clear when dry. The resin is only partly soluble in toluene. Solutions with solids contents of up to 50% can be made with good solvents such as acetone and ethyl acetate.

VINNAPAS® C 305 will dissolve in alkaline water, although this is a time-consuming operation resulting in high viscosity solutions. Solution may be speeded up by also using a water soluble solvent and using the following formulation as a guide:

40 parts VINNAPAS® C 305,

35 parts water,

10 parts conc. Ammonia,

30 parts methanol

Acetone may be used instead of methanol. The solution can be diluted by stirring in more water. An alternative method consists of dissolving the resin only in acetone and then diluting the resultant solution with water containing ammonia.

Care should be taken not to exceed a pH value of 8 since otherwise, the resin will be partly saponified and the solution will gel. Dilute caustic potash and certain organic amines can also be used instead of ammonia. Sodium and calcium hydroxide are unsuitable for this purpose since insoluble salts are formed with sodium and calcium ions.

Plasticizers

VINNAPAS® C 305 may be plasticized with the plasticizers normally used for polyvinyl acetate, e. g. dibutyl phthalate and tricresyl phosphate.



 

如果产品不是用于我们推荐的应用, 则购买者应对该产品的选择、加工和使用负全部责任. 此外还应遵守所有的相关法律法规.

Wacker Chemie AG

Hanns-Seidel-Platz 4

D-81737 Munich

Germany

包装

VINNAPAS® C 305 is supplied in 25 kg Paper Bags. Big Bag is available on request.

储存

To prevent caking VINNAPAS® C 305 should not be stored at temperatures above 20°C. Storage conditions must be dry; material must be protected from direct sun exposure.

Under these conditions the product has a shelf life of at least 12 months starting from the date of receipt.

销售和支持

Wacker Chemicals (China) Co.,Ltd.
Caohejing Hi-Tech Park
200233 Shanghai
中国大陆
+86  21  6130-2000 (电话)
+86 21 6130-2500  (传真)
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产品 技术数据
K值 动力粘度 堆积密度 外观 密度 玻璃化温度 软化点 酸值 重均分子量
VINNAPAS® B 100/20 VLE - - 3700 - 4700 mPa·s 3700 - 4700 mPa·s - - clear, colorless to pale yellow solution in ethyl acetate[1] - - - 约 21 °C[5] 约 69.8 °F[5] - - - - 约 185000 g/mol[3] 约 185000 g/mol[3]
VINNAPAS® B 60 FG 38 - 42[12] 38 - 42[12] - - 400 - 800 kg/m³ 400 - 800 kg/m³ fine powder, odorless[1] - 约 1.18 g/cm³[9] - 约 42 °C[6] - 约 119 °C[13] 约 246.2 °F[13] < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 70000 g/mol[4] -
VINNAPAS® C 305 29 - 33[12] 29 - 33[12] - - - - solid, colorless to pale yellowish flakes - 约 1.18 g/cm³[9] - 约 47 °C[7] - 约 120 °C[13] 约 248 °F[13] 30.0 - 38.0 mg KOH/g[8] 30.0 - 38.0 mg KOH/g[8] 约 50000 g/mol[4] -
VINNAPAS® UW 1 FS 48.0 - 54.0[12] 48.0 - 54.0[12] - - 700 - 850 kg/m³ 700 - 850 kg/m³ solid, colorless beads[1] - 约 1.18 g/cm³[10] 约 9.848 lb/gal[10] 约 43.0 °C[7] - 约 155 °C[13] 约 311 °F[13] < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 145000 g/mol[4] -
VINNAPAS® UW 10 FS - - - - 700 - 850 kg/m³ 700 - 850 kg/m³ solid, colorless beads[2] solid, colorless beads[2] 约 1.18 g/cm³[11] - 约 44 °C[7] - 约 220 °C[13] 约 428 °F[13] < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 410000 g/mol[4] -
VINNAPAS® UW 2 FS 54 - 60[12] 54 - 60[12] - - 700 - 850 kg/m³ 700 - 850 kg/m³ solid, colorless beads[1] - 约 1.18 g/cm³[9] - 约 43 °C[7] - 约 167 °C[13] 约 332.6 °F[13] < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 180000 g/mol[4] -
VINNAPAS® UW 25 FS - - - - 700 - 850 kg/m³ 700 - 850 kg/m³ solid, colorless beads, odorless and tasteless[1] - 约 1.18 g/cm³[9] - 约 44 °C[7] - - - < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 540000 g/mol[4] -
VINNAPAS® UW 4 FS 60 - 66[12] 60 - 66[12] - - 700 - 850 kg/m³ 700 - 850 kg/m³ solid, colorless beads - 约 1.18 g/cm³[9] - 约 44 °C[6] - 约 197 °C[13] 约 386.6 °F[13] < 0.5 mg KOH/g[8] < 0.5 mg KOH/g[8] 约 280000 g/mol[4] -
说明
[1] 外观 | 目测,  [2] Supply form | 目测,  [3] Molecular weight Mw of the polymer | SEC, PS-Standard,  [4] 重均分子量 | SEC, PS-Standard,  [5] Glas transition temperature of the polymer | DSC (DIN 53765 / ISO 11357-5),  [6] 玻璃化温度 | DSC (DIN 53765 / ISO 11357-5),  [7] 玻璃化温度 | DSC DIN EN ISO 11357-2,  [8] 酸值 | 专用方法,  [9] 密度 (聚合物) | DIN EN ISO 1183 /1-3,  [10] 密度 | DIN EN ISO 1183 /1-3,  [11] 密度 of the polymer | DIN EN ISO 1183 /1-3,  [12] K值 | DIN 53726,  [13] 软化点 | ASTM D 3104 

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