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Process for manufacturing plastics

A production process and plastic technology, applied in the field of plastic product production process, can solve the problems that it is inconvenient to adjust the color and structure of plastic foam products, the color of plastic products is single, and it is not convenient to make plastic products, etc., and achieve the effect of enriching the types of patterns

Inactive Publication Date: 2012-01-18
惠州全品科技工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color of plastic products made by this chemical foaming process is usually relatively single, and it is not convenient to make plastic products with more than two colors, and it is not convenient to set lines between different colors on plastic products, which limits people's understanding of plastic products. The beautiful design of the plastic products has limited the flexibility and full use of plastic products; in addition, the plastic products made by this chemical foaming process are formed by molding the molten material of raw materials, which is not convenient for people to adjust according to actual needs. Color and Structure of Plastic Foam Products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Preparation of plastic sheet:

[0032] (1), select yellow color masterbatch, mix it with EVA plastic material and stir;

[0033] (2), the setting machine temperature is 110 ℃, and the above-mentioned mixture material is placed in the machine and heated and stirred for 10 minutes;

[0034] (3) Set the temperature condition of the tablet press to be 65°C, adjust the thickness of the tablet press by adjusting the handwheel to set the distance between the two tablet rollers to 0.3 mm, and then place the mixture after heating and stirring. Pressed into a yellow EVA plastic sheet with a thickness of 0.3 mm in a tablet press;

[0035] Change the color of the masterbatch to green, and repeat the above steps to obtain a green EVA plastic sheet with a thickness of 0.3 mm.

[0036] 2. Foaming: Set the heating temperature of the foaming machine mold to 150°C, roll the yellow EVA plastic sheet and green EVA plastic sheet prepared above into a cylindrical shape, and bind them wi...

Embodiment 2

[0039] 1. Preparation of plastic sheet:

[0040] (1), select brown color masterbatch, mix it with EVA plastic material and stir evenly;

[0041] (2), the setting machine temperature is 120 ℃, and the above-mentioned mixture material is placed in the machine for heating and stirring for 8 minutes;

[0042] (3) Set the temperature condition of the tablet press to 70°C, adjust the thickness adjustment handwheel of the tablet press to set the distance between the two tablet rollers to 0.4 mm, and then place the heated and stirred mixture into the Pressed into a coffee-colored EVA plastic sheet with a thickness of 0.4 mm in a tablet press;

[0043] Change the color of the masterbatch to blue, set the distance between the two sheeting rollers to 0.5 mm, and repeat the above steps to obtain a blue EVA plastic sheet with a thickness of 0.5 mm.

[0044] 2. Foaming: set the heating temperature of the foaming machine mold to 190 °C, roll the brown EVA plastic sheet and blue EVA plastic...

Embodiment 3

[0047] 1. Preparation of plastic sheet:

[0048] (1), select the red color masterbatch, mix it with the PE plastic material and stir evenly;

[0049] (2), the setting machine temperature is 130 ℃, and the above-mentioned mixture material is placed in the machine and heated and stirred for 7 minutes;

[0050] (3) Set the temperature condition of the tablet press to 75°C, adjust the thickness of the tablet press by adjusting the handwheel to set the distance between the two tablet rollers to 0.6 mm, and then place the mixture after heating and stirring. Pressed into a red PE plastic sheet with a thickness of 0.6 mm in a tablet press;

[0051] Change the color of the masterbatch to purple, set the distance between the two sheeting rollers to 0.5 mm, and repeat the above steps to obtain a purple PE plastic sheet with a thickness of 0.5 mm.

[0052] 2. Foaming: Set the heating temperature of the foaming machine mold to 200°C, roll the red PE plastic sheet and the purple PE plasti...

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Abstract

The invention discloses a process for manufacturing plastics, which comprises the following steps of: uniformly mixing and stirring master batch with predetermined color and a pre-prepared plastic ingredient, and placing the mixed material after being uniformly mixed into a kneader to heat and stir the mixed material; placing the mixed material after being heated and stirred into a tablet machineto press the material into sheets, allowing two or more sheets with different colors to be overlapped and rolled into a cylinder shape at intervals, binding and shaping the sheets, and then putting the sheets into a foaming machine to heat and foam the sheets to obtain a plastic body; and shelling and longitudinally cutting the plastic body to obtain plastic blocks, and then sawing the plastic blocks into the plastics in different shapes. The plastics with irregular grains, such as a wood grain growth ring or a decorative pattern and the like can be manufactured through one-time foaming by the process; and the method solves the problem that the traditional process for manufacturing the plastics is not suitable for manufacturing the plastics with more than two colors, and is very suitable to be applied to the industrial production of the plastics.

Description

technical field [0001] The invention relates to the technical field of plastic preparation, in particular to a manufacturing process of plastic products. Background technique [0002] Plastic products are widely used in people's lives. The traditional production process of plastic products generally includes main steps such as baking, color mixing, and foaming. The foaming process is the process of heating and foaming the plastic to generate a microcellular structure. The traditional plastic foaming process is usually divided into three types: chemical foaming, physical foaming and mechanical foaming. In actual production, the appropriate type of plastic foaming process is selected according to the characteristics of the plastic, such as EVA (ethylene-vinyl acetate copolymer) comparison Suitable for foaming by chemical foaming process. The chemical foaming process is a process in which the plastic raw materials are fully mixed by mechanical stirring, and then shaped to form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/06C08L23/06C08L23/08C08L31/04B29C44/60
Inventor 唐铭锋
Owner 惠州全品科技工业有限公司