Producing method of master batch for agricultural film
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A production method and masterbatch technology, which are applied in chemical instruments and methods, raw material extrusion and granulation, and devices that can reverse the axial direction of the swirl flow, etc. , difficult to control the process and other problems, to achieve the effect of improving production efficiency and product performance indicators, simplifying the production process, and saving cumbersome processes
Inactive Publication Date: 2008-07-23
BEIJING EXCELLED CHEM AUXILIARIES
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Moreover, the equipment for producing masterbatch consumes a lot of energy and the process is diffi
Method used
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Embodiment 1
[0039] 1. Determination of the process conditions of agricultural film masterbatch
[0040] (1) Raw materials
[0041] Linear low density polyethylene (LLDPE), 7042, Daqing Petrochemical;
[0042] Antistatic agent, ASP-2, Beijing Research Institute of Chemical Industry;
[0043] Calcium carbonate, Beijing Chemical Building Materials Factory;
[0067] Process is the same as embodiment 1, and difference is prescription and processing condition:
[0068]
[0069] Since the granulation method is dry granulation, no loss of additives is caused during the production process.
Embodiment 3
[0071] Process is the same as embodiment 1, and difference is prescription and processing condition:
[0072]
[0073] Since the granulation method is dry granulation, no loss of additives is caused during the production process.
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Abstract
The invention provides a production method used for master granules of an agricultural film, which includes the following steps: at first, various materials needed for the processing of the master granules are mixed; then the materials are extruded into granules by a compactor; then the granules are evenly crashed; finally, the granules are screened and the master granules with uniform grain diameter can be obtained. The invention adopts the premixing combination palletizing technology, the method is invented according to the non-slurry palletizing principle and the formation technology of the powdery granulation of relevant industries, the accessory ingredients almost has no loss during the processing of the master granules, the mixing quality is even, thus considerably saving the complex procedures of the processing of the master granules, reducing the dust nuisance and the abrasion of the equipment, and reducing the energy consumption and the method can replace the master granule palletizing technology for the agricultural film.
Description
technical field [0001] The invention relates to a production method of an additive master batch, in particular to a production method of a master batch for agricultural film. Background technique [0002] The development of agricultural plastic films in China began in the middle and late 1950s. At first, all PVC films were used. In the mid-1970s, due to the improper selection of plasticizers for PVC films, the development of PVC agricultural films was seriously affected; with the localization of polyethylene resin In the 1970s, the history of LDPE replacing PVC as agricultural film began. In order to solve the problem of poor weather resistance of LDPE resin, in the late 1970s, domestic scientific research departments and production enterprises began to focus on the research and development of LDPE anti-aging agricultural film; in 1979, PE film was introduced into my country, ending the history of "overwhelming" cultivation technology; In the mid-1980s, wide dripping and agi...
Claims
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