Innovative biodegradable plastic manufacturing film blowing machine 

 
The price of PLA before large-scale industrialization was US $ 1,000 / kg. Later, through industrialization research, large-scale production was achieved. Many companies in China have achieved industrialization, and their current prices are 3000-3600 US dollars / ton. PLA has many applications, and can be used in many fields such as extrusion, injection molding, film stretching, and spinning.
 
The product can be adapted to various specifications and requirements. PLA takes 4-6 months for biodegradation in a landfill and 6-24 months in seawater. There is a hydroxyl group and a carboxyl group in a single lactic acid molecule. Multiple lactic acid molecules are together, -OH and -COOH of other molecules are dehydrated and condensed, and -COOH is dehydrated and condensed with -OH of other molecules. This polymer is called polylactic acid. Polylactic acid is also called polylactide, which belongs to the polyester family. Polylactic acid is a polymer obtained by polymerization of lactic acid as the main raw material. The raw material source is sufficient and renewable. The production process of polylactic acid is pollution-free, and the product can be biodegraded to realize the circulation in nature, so it is an ideal green polymer material.
Edit this paragraph 1. Advantages of polylactic acid
The advantages of 　　 polylactic acid mainly include the following aspects: 　　
       (1) Polylactic acid (PLA) is a new type of biodegradable material, made from starch raw materials proposed by renewable plant resources (such as corn). Starch raw materials are fermented into lactic acid, and then converted into polylactic acid through chemical synthesis. It has good biodegradability. After use, it can be completely degraded by microorganisms in nature, and finally carbon dioxide and water are generated without polluting the environment. This is very beneficial to environmental protection and is recognized as an environmentally friendly material. It is your responsibility to care for the earth. According to news reports, the global temperature will rise to 60°C in 2030. Ordinary plastics are still treated by incineration and cremation, causing a large amount of greenhouse gases to be discharged into the air, while polylactic acid plastics are buried in the soil to degrade and produce The carbon dioxide directly enters the soil organic matter or is absorbed by plants, will not be discharged into the air, and will not cause the greenhouse effect.　　
     (2) Good mechanical and physical properties. Polylactic acid is suitable for various processing methods such as blow molding and thermoplastic, and is easy to process and has a wide range of applications. It can be used to process various plastic products, packaged food, fast food lunch boxes, non-woven fabrics, industrial and civilian fabrics from industry to civilian use. And then processed into agricultural fabrics, health care fabrics, wipes, sanitary products, outdoor anti-ultraviolet fabrics, tent fabrics, floor mats, etc. The market prospects are very promising.　　
     (3) Good compatibility and degradability. Polylactic acid is also widely used in the field of medicine, such as the production of disposable infusion equipment, non-dismantling surgical sutures, etc., and low-molecular-weight polylactic acid as a drug sustained-release packaging agent.
　　(4) Polylactic acid (PLA) has its own unique characteristics in addition to the basic characteristics of biodegradable plastics. The strength, transparency and resistance to climate change of traditional biodegradable plastics are not as good as ordinary plastics.
　　(5) The basic physical properties of polylactic acid (PLA) and petrochemical synthetic plastics are similar, that is to say, it can be widely used to manufacture various application products. Polylactic acid also has good gloss and transparency, which is comparable to films made of polystyrene, and cannot be provided by other biodegradable products.
(6) Polylactic acid (PLA) has the best tensile strength and ductility. Polylactic acid can also be produced by various common processing methods, such as: melt extrusion molding, injection molding, blown film molding, foam molding and vacuum molding , It has similar forming conditions with the currently widely used polymer, in addition it also has the same printing performance as traditional films. In this way, polylactic acid can be made into a variety of application products in response to the needs of different industries.
　　(7) Polylactic acid (PLA) film has good air permeability, oxygen permeability and dioxane permeability, and it also has the characteristics of odor isolation. Viruses and molds are easily attached to the surface of biodegradable plastics, so there are concerns about safety and hygiene. However, polylactic acid is the only biodegradable plastic with excellent antibacterial and antifungal properties.
(8) When polylactic acid (PLA) is incinerated, its combustion calorific value is the same as that of incineration paper, which is half of that of traditional plastics (such as polyethylene). In addition, incineration of polylactic acid will never release toxic compounds such as nitrides and sulfides. gas. The human body also contains lactic acid in the form of monomer, which shows the safety of this decomposable product.
 
Establishment of factories around the world and the production of biodegradable PLA (polylactic acid) products in order to reduce the damage to the plastic world.
Any plastic product can be made with PLA
Water bottles
Straws
Bag Packages （garbage rolling bag, supermarket shopping bags, flat rolling bags)
Food containers
Disposable cups
The bottle
Cups for coffee
Cling film
Any packaging
Packaging for cosmetics
Protective sleeves 
 
How much resources it takes to make one pound of each of these materials.
Resin Energy  Emissions  Water  
PLA(corn) 7.39 kWh 0.27 lbs of CO₂ 8.29 gallons  
PP(Plastic) 9.25 kWh 1.7 lbs of CO₂ 5.16 gallons  
PET(Plastic) 10.17kWh 2.8 lbs of CO₂ 7.44 gallons  
EPS(Styrofoam) 11.17 kWh 2.5 lbs of CO₂ 20.53 gallons 
Resources (resources) needed to produce one pound of materials.
 
Resin Energy  Emissions  Water  
PLA(corn) 100% 100% 100% 
PP(Plastic) 125% 630% 62% 
PET(Plastic) 138% 1037% 90% 
EPS(Styrofoam) 151% 926% 248% 
PLA requires the least amount of energy to produce.
PP requires 25% more PET requires 38% more EPS requires 51% more.
PLA emits the least amount of carbon dioxide during production.
PP releases 6.3 times as much EPS releases 9.26 times as much
PET releases 10 times more.
PLA requires more water for production than PP and PET, and the environmental benefits exceed water consumption. Product biodegradation contributes significantly to a healthy and prosperous environment.
 
Our company can produce film blowing machine and bag making machine for degradable materials, which can produce degradable agricultural mulch film required for agricultural production, degradable garbage bags, degradable vest bags and degradable supermarket shopping bags used in people's daily life. and many more.
Let me share with you an actual customer case
Biodegradable film blowing machine
 
In the production process, we use bio-degradable blown film raw materials produced by Chinese manufacturers (model: 701-378). This model is designed for blown film. The melt flow is moderate, suitable for cast film and blown film. The tensile strength is large and straight, the inner sealing temperature is low, the sealing is good, and the outer layer has high temperature resistance, which is suitable for making the outer film of the bubble packaging bag. It is completely biodegradable after use. For the screw and die head dedicated to the degradable film, plus the double air outlet ring, the test machine was very successful.
Degradable film blowing machine test machine video

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