Biodegradable mulching film
A biodegradable, mulch technology, applied in plant protection cover, climate change adaptation, etc., can solve the problems of water resistance and hydrophilicity, residual particles or debris, incomplete degradation, etc., to solve the problem of water resistance and hydrophilicity. The problem of sexual balance, the effect of uniform and thorough degradation, and low cost of comprehensive use
Active Publication Date: 2010-09-15
常州百利基生物材料科技有限公司
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Problems solved by technology
[0005] The existing biodegradable mulch still has some deficiencies due to technical problems, for example: ①The degradation life cannot be adjusted, which leads to the early or delayed degradation of the bio-mulch, and loses the effect of the mulch on the heat preservation and moisture conservation of crops; The structural reorganization of ethylene (PE) is a form of wrapping, which cannot form a network bridging structure, resulting in uneven and incomplete degradation of the degradable film, leaving particles or debris, causing secondary pollution; ③ cannot solve the problem of water resistance The problem of the balance between water and hydrophilicity is manifested in the fact that the made mulch cannot cling to the surface and is easily blown away by the wind, and its functionality as a mulch is relatively poor; ④ There are extremely high requirements for the particle size of the raw material Thicker, more material consumption, higher cost
Method used
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Embodiment Construction
[0027] In the concrete implementation of a kind of biodegradable mulch film of the present invention, can adopt above-mentioned component to carry out the production of mulch film, the source of its raw material can be:
[0028] The alloy masterbatch is produced by Changzhou Bailiji Biomaterials Technology Co., Ltd.;
[0029] 7042 (LDPE) adopts the product produced by Guangdong Maoming Petrochemical Company;
[0030] 1F7B (LDPE) adopts the product produced by Beijing Yanshan Petrochemical Company.
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Abstract
The invention discloses a biodegradable mulching film, which comprises the following components in percentage by weight: 33 to 68 percent of alloy master particle, 30 to 65 percent of 7042(LDPE), and 5 to 7 percent of 1F7B. The alloy master particles comprise the following components in percentage by weight: 0.01 to 0.03 percent of tert-butyl peroxide isopropyl benzene, 1.50 to 2.25 percent of fumaric acid, 4.50 to 5.60 percent of microcrystalline wax, 3.60 to 5.40 percent of polyethylene wax, 3.00 to 4.20 percent of MG70, 9.00 to 13.0 percent of N210 and 68 to 80 percent of cornstarch. The biodegradable mulching film has the advantages that: the biodegradable mulching film can adapt to different climates and soil environments in various places as well as the requirements of different crops, the mulching film is degraded in the design life without influencing the planting of the crops, and the mulching film is degraded uniformly and thoroughly; the balance problem of water resistance and hydrophily is solved, and the mulching film has higher ground adherence; and the specific gravity is small, the thickness of the mulching film is only 0.005mm, the material consumption is low and use cost is low, and the biodegradable mulching film can be popularized and applied on a large scale.
Description
【Technical field】 [0001] The invention relates to the technical field of biomaterials, and relates to the preparation of a biodegradable film, in particular to a biodegradable mulch film. 【Background technique】 [0002] Agricultural mulch is an important means of production in agriculture after seeds, fertilizers and pesticides. The mulch film has a good effect of increasing temperature and keeping moisture, and can greatly increase the yield of crops. However, with the large-scale use of common plastic mulch, a large number of mulch fragments remain in the soil. With the accumulation of plastic film fragments, a large amount of residual plastic film destroys the soil structure, causing soil compaction, poor permeability, and soil fertility decline, which seriously affects the growth and production of crops and reduces crop production. If the residual plastic film per mu exceeds 22kg, the crop yield will decrease by 25%; if the residual plastic film per mu exceeds 50kg, th...
Claims
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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L3/02C08K5/14C08K5/092A01G13/02
CPCY02A40/28
Inventor 王惠民
Owner 常州百利基生物材料科技有限公司
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