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Modified hard polyvinyl chloride film

A technology of hard polyvinyl chloride and polyvinyl chloride resin, applied in the field of modified hard polyvinyl chloride film, which can solve the problem of expensive ethyl acetate that cannot be recycled, high energy consumption for heat sealing and antistatic coating, and rising production costs and other problems, to achieve the effect of simple and easy raw material blending modification method, saving equipment investment and reducing production cost

Inactive Publication Date: 2003-01-08
邵万春 +2
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] However, heat sealing and electrostatic coating increase the production cost significantly
First, the expensive ethyl acetate used cannot be recycled
Secondly, the energy consumption of heat sealing and antistatic coating is very high. For example, the energy consumption of heat sealing and electrostatic coating machine produced by Yunnan Gaofeng Machinery Factory is as high as 70KW.
Furthermore, the generation of a large number of waste products in the coating process has also led to an increase in cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Add 100 parts of PVC resin powder to the L-2001 high-speed kneader produced by Beijing Plastic Machinery Factory, cover the upper cover, start at low speed, and then slowly add 2 parts of 8831, 5 parts of DOP, and 1.5 parts of liquid calcium / zinc composite stabilizer agent, 1.0 parts of n-butyl stearate. Turn the speed up. When the material temperature rises to 100-105°C, add 5 parts of MBS, 2.5 parts of ACR-401, 1 part of EVA and 1 part of chlorinated-EVA, 0.8 parts of oxidized polyethylene, 2.0 parts of quaternary ammonium salt S-18 (Hangzhou Produced by the Municipal Institute of Chemical Industry). When the temperature rises to 110-115° C., turn on the switch of the kneader, and discharge the material into the activated L-4001 cooling mixer (produced by Beijing Plastic Machinery Factory). When the temperature of the material drops below 50°C, turn on the switch of the cooling mixer, and discharge the material into the material tank for standby.

[0027] Select th...

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PUM

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Abstract

The present invention discloses one kind of improved R-PVC film prepared through material intermingling process. The film consists in weight portions of PVC resin 100, DOP 3-5, 8831 material 1.5-2.2, composite liquid calcium-zinc stabilizer 1.5-2.0, MBS resin 4-6, n-butyl stearate 1.0-1.5, polyoxyethylene 0.8-1.2, ACR-401 2.0-3.0, EVA chloride 1.0-2.0 and D80X or S-18 1.0-2.0. The EVA chloride may be replaced by EVA at most 50%. The film has hot sealing temperature of about 140 deg.c and surface resistivity of 10 to the power 11 ohm.cm, and may be used in packing candy, food, medicine, costume and cigarette.

Description

technical field [0001] The invention relates to a modified hard polyvinyl chloride film, in particular to a modified hard polyvinyl chloride film prepared by extrusion blow molding. technical background [0002] Polyvinyl chloride without or with only a little plasticizer is called rigid polyvinyl chloride, generally referred to as R-PVC. Since R-PVC has the mechanical strength required by relatively satisfactory engineering plastics, such as tensile strength, elongation, impact strength, bending strength, etc., people use polyvinyl chloride (PVC) as the main body, with various processing Additives, R-PVC film suitable for candy, food, medicine, clothing and cigarette packaging has been developed by extrusion blow molding. This kind of film has a crisp shape on the package, sharp edges and corners, stretching, strong wrinkle resistance, high transparency, and good fragrance retention. Therefore, once on the market, it has been widely used. [0003] But so far, the R-PVC f...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L27/06
Inventor 王会贤邵万春王保东赵霄霞
Owner 邵万春
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