Special full-biodegradable material for peanut mulching film and preparation method of special full-biodegradable material

An all-biological, special-purpose material technology, applied in the field of all-biodegradable peanut mulch special materials and its preparation, can solve the problems that the anti-hydrolysis agent is difficult to meet the requirements, and the biodegradable materials are prone to hydrolysis, etc., and achieve excellent hydrolysis resistance and production process. The effect of simple and mature technology and high light transmittance

Inactive Publication Date: 2018-04-03
山东天野生物降解新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the patent analysis, there are few degradable mulch films dedicated to peanut covering, and the peanut degradable mulch film needs to meet the following characteristics: (1) Since the mulch film needs to be exposed to high-temperature ultraviolet radiation in summer, special ultraviolet rays and light stabilizers need to be added; (2) The summer rain is relatively heavy. However, biodegradable materials are prone to hydrolysis, and a single anti-hydrolysis agent is difficult to meet the requirements

Method used

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Examples

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Embodiment Construction

[0023] The following table is an embodiment and a comparative example. The nucleating agent is two (p-methylbenzylidene) sorbitol; wherein the PLA molecular weight is 100,000; the PBAT is polyadipic acid / terephthalic acid Butylene glycol, molecular weight 40,000, polycaprolactone, average molecular weight 2,000.

[0024] The difference between embodiment and comparative example is that comparative example 1 has removed ultraviolet agent VSU on the basis of embodiment 6, and the consumption of Tinuvin10 is the total consumption of VSU and Tinuvin10, and others are identical with embodiment 6; Comparative example 2 does not use calcium oxide , the amount of pentaerythritol is 8 parts, and the others are the same as in Example 6; Comparative Example 3 has exchanged the consumption of Pentaerythritol and calcium oxide on the basis of Example 6, and the others are the same as in Example 6; Comparative Example 4 does not add composite flexible Modifier, but all adopt butyl citrate a...

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Abstract

The invention discloses a special full-biodegradable material for a peanut mulching film. The special full-biodegradable material is characterized by being prepared from the following ingredients: 100parts of PLA, 70-90 parts of PBAT, 0.5-1.0 part of a nucleating agent, 5-10 parts of a compound hydrolysis resisting agent, 0.5-1.5 parts of a compound anti-ultraviolet agent, 3-6 parts of a molecular weight modifier, and 25-35 parts of a compound flexibility modifier. The mulching film prepared from the special material is excellent in hydrolysis resistance, lightproof aging property and flexibility, the opening property of the mulching film is good (the time for paving the mulching film is saved), the transmittance of light is high, and the special material can be completely biodegraded into carbon dioxide and water under the composting condition, does not pollute the soil and the environment, and is suitable for serving as the peanut mulching film.

Description

technical field [0001] The invention belongs to the technical field of ground covering films, and specifically relates to a special material for fully biodegradable peanut mulching films and a preparation method thereof. Background technique [0002] At present, mulch film has been widely used in the agricultural fields of various countries, and has attracted much attention for its unique functions of heat preservation, moisture retention, moisture retention, fertilizer increase, and production increase. In my country, more than 1 million tons of mulch are used every year, and the materials of these mulches are basically traditional petroleum-based materials such as PE. These materials will be left in the soil after use and discarded, causing serious white pollution. Peanut planting is very common in my country and has great development prospects. Bio-polyester materials such as polymethylethylene carbonate (PPC), polylactic acid (PLA), polybutylene terephthalate-adipate (P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L67/02C08K13/02C08K5/053C08K3/22C08K5/18C08K5/20C08K5/11
CPCC08L67/04C08K2003/222C08L2201/06C08L2203/16C08L2205/02C08L2205/025C08L2205/03C08L67/02C08K13/02C08K5/053C08K3/22C08K5/18C08K5/20C08K5/11
Inventor 付宇经宣兆志阎宝林李开磊张鑫科
Owner 山东天野生物降解新材料科技有限公司
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