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A technology for additive preparation and plastics, applied in the field of plastic additives, can solve problems such as air pollution, high cost, complex melting temperature control system, etc., and achieve the effect of increasing fusion speed
Pending Publication Date: 2020-02-21
张小飞
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[0003] In order to make up for the deficiencies of the existing technology, solve the serious air pollution caused by the waste of plastic materials when incinerated, and at the same time, the raw materials need to be mixed and melted in the production process of plastic products, and the melting temperature control system is relatively complicated and the cost is high. , a kind of plastic additive preparation method that the present invention proposes
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[0026] Such as Figure 1 to Figure 5 Shown, a kind of plastic additive preparation method of the present invention comprises the following steps:
[0027] S1. First mix low-density polyethylene, nano-calcium carbonate and sarin, and fuse the obtained mixture for the first time; the fusion temperature is 140-180°C, and the fusion time is 5-10 minutes;
[0028] S2. Add high-density ethylene, lubricant, low-temperature thermal oxidant, antistatic agent and polypropylene to the product obtained by fusion in S1, and put it in a fusion furnace for secondary fusion; fusion temperature is 170-230°C, fusion time 5-10min;
[0029] S3, adding modified starch, microbial preparation and glycerin or propylene glycol to the product obtained by fusion in S2. And carry out the third fusion; the fusion temperature is 90-120°C, and the fusion time is 5-10min;
[0030] S4. Injecting or extruding the product after the third fusion obtained in S3 to obtain a plastic additive;
[0031] The fusio...
Embodiment approach
[0032] As an embodiment of the present invention, a No. 1 shaft 2 is rotatably connected to the water bath 13, and a water wheel 21 is fixedly connected to the top of the No. 1 shaft 2; the bottom of the No. 1 shaft 2 runs through a horn 12 and extends to a horn 12, and the No. 1 shaft 2 is in sliding and sealed connection with the No. 1 horn 12; the bottom of the No. 1 horn 12 and the corresponding position of No. 1 shaft 2 are fixedly connected with the motor 23 through the bracket 22, and the output shaft of the motor 23 is connected to the No. 1 horn through the control unit 3. The shaft 2 is connected; the motor 23 is connected to the power supply through the controller; the control unit 3 is used to control the opening and closing of the solenoid valve and the ignition of the gas nozzle 18; Trigger the control unit 3, and then control the gas nozzle 18 to spray gas to heat the water bath 13, further ensuring that the temperature of the furnace body 1 is within the fusion ...
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Abstract
The invention belongs to the field of plastic additives, and particularly relates to a preparation method of a plastic additive. A fusion furnace adopted in the preparation method comprises a cylindrical furnace body with an opening at the upper end; a discharging pipe is arranged at the bottom of the cylindrical furnace body, and is controlled to be opened and closed through a valve; a first cylinder is arranged on the periphery of the cylindrical furnace body, p-hydroxyformic acid is contained in a water bath chamber between the cylindrical furnace body and the first cylinder, and the melting point of the p-hydroxyformic acid is 214-217 DEG C; the periphery of the first cylinder is sleeved with a second cylinder; a combustion chamber is formed between the second cylinder and the first cylinder; a set of air inlets are formed in the bottom of the combustion chamber, and a set of air outlets are formed in the top of the combustion chamber; a group of gas spray pipes are arranged at thebottom of the combustion chamber, and are communicated with a natural gas source through an electromagnetic valve and a pipeline. In using process, the melting state of p-hydroxyformic acid is observed, and the gas spray pipes are controlled to heat the water bath chamber, so that the fusion temperature of a mixture in the furnace body can be conveniently and quickly controlled, and smooth fusionis further ensured.
Description
technical field [0001] The invention belongs to the field of plastic additives, in particular to a method for preparing plastic additives. Background technique [0002] As we all know, with the rapid development of the petrochemical industry after the middle of the 20th century, plastic materials have become the most important materials in people's daily life, such as plastic bags, plastic cups, shells of most home appliances, shoe materials, tableware, raincoats, agricultural products, etc. Films, packaging films, containers, stationery, leisure products, household products, etc. are all plastic products, so plastic materials are inseparable from people's daily life, but the biggest disadvantage of plastic materials lies in their waste disposal. If the method of incineration is used for thousands of years, the service life of the landfill will be greatly reduced; if incineration is used, the plastic products will produce toxic gases such as dioxin, HCN, HF, CO, and SO2 afte...
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Application Information
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