阅读说明：本技术 一种可降解环保塑料薄膜配方及其生产工艺 (A kind of Degradable environment-friendlyplastic plastic film formulation and its production technology ) 是由 黄健 林友菁 林柏文 张海军 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种可降解环保塑料薄膜配方,由以下按重量份的原料组成：热塑性淀粉45-55份,相容改性成分6-7份,聚乳酸15-20份,硬脂酸钙10-20份,塑料基料25-35份,聚己酸内酯15-20份,抗菌剂7-12份,降解促进剂3-7份,填充剂3-5份,交联剂4-8份,植物纤维26-32份,助剂1-3份。本发明的优点：本发明的材料配方中的原料,淀粉含量最高,在土壤微生物的作用下,可完全分解成水、二氧化碳及有机物,无污染,可广泛应用于农用地膜、包装袋等,容易降解,同时具有良好的力学性能,而且制品的成本大为降低；另外,在生产、储存、使用和降解过程中不产生有毒物质,能较快地被降解掉,有利于环境的保护。(The invention discloses a kind of Degradable environment-friendlyplastic plastic film formulations, are made of following raw material by weight: 45-55 parts of thermoplastic starch, compatible altered contents 6-7 parts, 15-20 parts of polylactic acid, 10-20 parts of calcium stearate, 25-35 parts of plastic matrix, 15-20 parts of polycaprolactone, 7-12 parts of antibacterial agent, 3-7 parts of degradation of promoter, 3-5 parts of filler, 4-8 parts of crosslinking agent, 26-32 parts of plant fiber, 1-3 parts of auxiliary agent.Advantages of the present invention: the raw material in material prescription of the invention, content of starch highest, under the action of edaphon, water, carbon dioxide and organic matter can be resolved into completely, it is pollution-free, it can be widely applied to agricultural mulching, packaging bag etc., be easy degradation, there is good mechanical property simultaneously, and the cost of product is greatly lowered；It in addition, not generating noxious material in production, storage, use and degradation process, can be degraded quickly, be conducive to the protection of environment.)

1. a kind of Degradable environment-friendlyplastic plastic film formulation, it is characterised in that: be made of following raw material by weight:

45-55 parts of thermoplastic starch, compatible altered contents 6-7 parts, 15-20 parts of polylactic acid, 10-20 parts of calcium stearate, plastics base 25-35 parts of material, 15-20 parts of polycaprolactone, 7-12 parts of antibacterial agent, 3-7 parts of degradation of promoter, 3-5 parts of filler, crosslinking agent 4- 8 parts, 26-32 parts of plant fiber, 1-3 parts of auxiliary agent.

2. a kind of Degradable environment-friendlyplastic plastic film formulation according to claim 1, it is characterised in that: the thermoplastic starch Powder is that partial size is one of cornstarch, wheaten starch, potato starch or a variety of；The compatible altered contents are octadecylene The mixture that acid, dodecenylsuccinic acid acid anhydride are formed according to 1:2.

3. a kind of Degradable environment-friendlyplastic plastic film formulation according to claim 1, it is characterised in that: the plastic matrix For one of polyethylene, polypropylene, polyvinyl chloride and polystyrene or a variety of.

4. a kind of Degradable environment-friendlyplastic plastic film formulation according to claim 1, it is characterised in that: the antibacterial agent is The mixture that Hinered phenols crosslinking agent and phosphorous acid esters crosslinking agent are formed according to 1:1；The degradation of promoter be corn oil, One of sunflower oil, epoxidized soybean oil or manganese stearate are a variety of.

5. a kind of Degradable environment-friendlyplastic plastic film formulation according to claim 1, it is characterised in that: the filler is At least one of stearic acid, atoleine, polyethylene wax；Crosslinking agent be dual-tert-butyl peroxy isopropyl base benzene, calgon, One or both of sodium trimetaphosphate or sodium tripolyphosphate any combination.

6. a kind of Degradable environment-friendlyplastic plastic film formulation according to claim 1, it is characterised in that: the plant fiber For rice stalk, wheat stalk, corn stover or their mixture；The auxiliary agent is calcium carbonate, cadmium stearate and nanometer The mixture that titanium dioxide is formed according to 1:1:1.

7. a kind of production technology of Degradable environment-friendlyplastic plastic film, it is characterised in that: the following steps are included:

Step 1, in parts by weight, by weighed thermoplastic starch, compatible altered contents, plastic matrix, polylactic acid, hard Resin acid calcium and polycaprolactone are put into mixing machine simultaneously in proportion, are uniformly mixed at room temperature；

Step 2 takes plant fiber to crush by the weight, and by antibacterial agent, degradation of promoter, filler, crosslinking agent and auxiliary agent It is uniformly added into the mixture of step 1 preparation and is stirred to obtain mixture；

Step 3 after mixing by mixture obtained in above-mentioned steps two, and carries out heating melting；

Mixed melting liquid after heating melting obtained in above-mentioned steps three is passed through inflation film manufacturing machine after extruder squeezes out by step 4 Plastic film is made, mixture is blow molded into biodegradable plastic film；

Biodegradable plastic film obtained in above-mentioned steps four is cut into different size size with cutting machine by step 5, Biodegradable plastic film take-up encapsulation storage.

8. a kind of production technology of Degradable environment-friendlyplastic plastic film according to claim 7, it is characterised in that: the step The model SJ-45-FM1000 of inflation film manufacturing machine in rapid four.

Technical field

The present invention relates to plastic film production technical field, in particular to a kind of Degradable environment-friendlyplastic plastic film formulation and its Production technology.

Background technique

Plastic film is the film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins.Modeling Expect that the surface tension of film depends on Plastic film surface free energy size, and film surface can depend on thin-film material itself Molecular structure.Plastic film can be used for food packaging, electric equipment products packaging, commodity packaging, garment packaging etc..

Existing plastic film is employed for the side in life due to its excellent physical property, cheap manufacturing cost Aspect face, however existing plastic film is usually transparent or black PE film, also there is green, silver thin film, is used for information communication The packaging of equipment and cable, covering avoid equipment or cable impaired to improve the stability and safety of equipment conveying, still, Existing degradation of plastic film effect is poor, be easy to cause soil pollution.

Summary of the invention

The present invention is above-mentioned various in order to solve the problems, such as, provides a kind of Degradable environment-friendlyplastic plastic film formulation and its production Technique has many advantages, such as biological degradability and excellent mechanical property.

In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of Degradable environment-friendlyplastic plastic film formulation, It is made of following raw material by weight:

45-55 parts of thermoplastic starch, compatible altered contents 6-7 parts, 15-20 parts of polylactic acid, 10-20 parts of calcium stearate, modeling Base-material 25-35 parts of material, 15-20 parts of polycaprolactone, 7-12 parts of antibacterial agent, 3-7 parts of degradation of promoter, 3-5 parts of filler, crosslinking 4-8 parts of agent, 26-32 parts of plant fiber, 1-3 parts of auxiliary agent.

Preferably, it is one of cornstarch, wheaten starch, potato starch or more that the thermoplastic starch, which is partial size, Kind；The mixture that the compatible altered contents are octadecenic acid, dodecenylsuccinic acid acid anhydride is formed according to 1:2.

Preferably, the plastic matrix is one of polyethylene, polypropylene, polyvinyl chloride and polystyrene or more Kind.

Preferably, the antibacterial agent is that Hinered phenols crosslinking agent and phosphorous acid esters crosslinking agent are mixed according to what 1:1 was formed Close object；The degradation of promoter is one of corn oil, sunflower oil, epoxidized soybean oil or manganese stearate or a variety of.

Preferably, the filler is at least one of stearic acid, atoleine, polyethylene wax；Crosslinking agent is double One or both of tert-butylperoxyiso-propyl benzene, calgon, sodium trimetaphosphate or sodium tripolyphosphate any combination.

Preferably, the plant fiber is rice stalk, wheat stalk, corn stover or their mixture；It is described Auxiliary agent be the mixture that is formed according to 1:1:1 of calcium carbonate, cadmium stearate and nano-titanium dioxide.

The invention also includes a kind of production technologies of Degradable environment-friendlyplastic plastic film, comprising the following steps:

Step 1, in parts by weight, by weighed thermoplastic starch, compatible altered contents, plastic matrix, poly- cream Acid, calcium stearate and polycaprolactone are put into mixing machine simultaneously in proportion, are uniformly mixed at room temperature；

Step 2 takes plant fiber to crush by the weight, and by antibacterial agent, degradation of promoter, filler, crosslinking agent and Auxiliary agent and the mixture of step 1 preparation are uniformly added into and are stirred to obtain mixture；

Step 3 after mixing by mixture obtained in above-mentioned steps two, and carries out heating melting；

Step 4, by the mixed melting liquid after heating melting obtained in above-mentioned steps three by blowing after extruder squeezes out Plastic film is made in film machine, and mixture is blow molded into biodegradable plastic film；

It is big with cutting machine to be cut into different size by step 5 for biodegradable plastic film obtained in above-mentioned steps four It is small, biodegradable plastic film take-up encapsulation storage.

Preferably, in the step 4 inflation film manufacturing machine model SJ-45-FM1000.

The advantages of the present invention over the prior art are that: the raw material in material prescription of the invention, content of starch highest, Under the action of edaphon, water, carbon dioxide and organic matter can be resolved into completely, it is pollution-free, it can be widely applied to agricultural Mulch, packaging bag etc. are easy degradation, while having good mechanical property, and the cost of product is greatly lowered；In addition, In Noxious material is not generated in production, storage, use and degradation process, can be degraded quickly, be conducive to the protection of environment.

Specific embodiment

Described embodiments are only a part of the embodiments of the present invention by general below, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.