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[Chemical Knowledge]：Manufacturing method and process of PVC gloves

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The manufacturing method
of PVC gloves
1. Introduction

PVC gloves are a widely used chemical protective equipment. They have good acid and alkali resistance, oil resistance, water resistance and aging resistance, and are inexpensive and easy to use. In the field of chemical production raw materials, the manufacture of PVC gloves involves a number of process links, including ingredients, mixing, plasticization, demoulding and so on. This article will introduce the manufacturing method of PVC gloves in detail.

2. material preparation

1. PVC resin powder: Select the appropriate type of PVC resin powder, its molecular weight and molecular weight distribution should meet the requirements of gloves.
2. Plasticizers: Commonly used plasticizers are DOP, DBP, etc., used to increase the flexibility of PVC.
3. stabilizer: mainly used to prevent the thermal decomposition of PVC in the process of processing and use, commonly used lead salts, organic tin and so on.
4. Lubricant: used to improve the fluidity of PVC melt and reduce friction during processing. Stearic acid and paraffin wax are commonly used.

3. ingredients and mixing

PVC resin powder, plasticizer, stabilizer and lubricant are added to a high-speed mixer according to a certain proportion, and are fully stirred and mixed. The mixing time and temperature should be controlled within a suitable range to ensure that the materials are evenly mixed.

4. plasticizing and molding

The mixed material is fed into the extruder, and the material is fully plasticized by the rotation and heating of the screw. Then, the plasticized material is extruded through the die to form the shape of the glove.

5. cooling and demoulding

The gloves need to be cooled by cold water to make them quickly set. The glove is then removed from the mold by a demolding device.

6. quality inspection and packaging
The gloves after
demoulding need to be inspected for quality, including appearance, thickness, tensile strength, acid and alkali resistance, etc. The qualified gloves shall be packaged, and the packaging materials shall be non-toxic and tasteless environmental protection materials.
Precautions for
7.

1. During the entire production process, each process parameter should be strictly controlled to ensure stable product quality.
2. The waste generated in the production process should be reasonably disposed to avoid environmental pollution.
3. Operators should be professionally trained and familiar with the production process and equipment operation to ensure production safety.

8. conclusion The manufacture of

PVC gloves involves many links, and it is necessary to strictly control the process parameters and material selection to ensure product quality. Through scientific formula and reasonable production process, PVC gloves with excellent performance and moderate price can be produced to meet the needs of chemical production raw materials.

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