When to Use biodegradable starch resin supplier？

Product Name

Description

BIO-S2-B-F is a Compostable and Biodegradable plastic based on a blend of thermoplastic starch (TPS), aliphatic polyesters (AP) and natural plasticizers.This grade of resin is compatibilised to offer a high level of mechanical strength,outstanding elongation properties and toughness. The resin is based on corn starch which is a renewable material.

BIO-S2-B-F

are certified biodegradable during composting in

professionally managed composting facilities.

Complies with European Standard EN13432, USA standard ASTM 6400,Australian Standard AS 4736 and the Japanese "GreenPla" standard.

Complies with International Standard ISO16929, ISO 14855

Used for blown film applications up to 120 microns.

Specification

Properties Properties

Test Method

Typical Value/ Unit

Melt Flow Index

ASTM D-1238

1.07 g/ 10 min ( .325 Kg @ 150 deg.

Density

ASTM D-792

1.21 g/cm

3

Melting Temperature Range

ASTM D-3418

90 - 130 deg. C

Tensile strength at yield

ASTM D-883

> 25 MPa

Tensile strength at break

ASTM D-883

> 15 MPa

% Elongation at break

ASTM D-883

> 500 % at low strain rates

Impact Resistance - Dart Test

ASTM D-1709

0.23 k g

Tear propagation

ASTM D-1922

2.9 Newton

Oxygen transmission rate

ASTMF-1927

1175 (cc/m

2

.day)

Application

Compostable bags

1. Shopping bags/Check-out bags

2. Garbage bags

   Contact us to discuss your requirements of resin biodegradable supplier. Our experienced sales team can help you identify the options that best suit your needs.

3. Leaf litter bags

4. Green bin liners

5. Produce and meat liners

6. Overwrap Packaging

7. Mulch film

8. Breathable film

Processing Conditions

BIO-S2-B-F resin can be processed on standard LDPE or LLDPE blown film equipment. Specific Instructions for Film Blowing of BIO-S2-B-F Resin:

1. The resin is very sensitive to temperature during the film blowing process.

Please be cautious of the temperature used during extrusion and film blowing. As a reference, the film-blowing temperatures successfully used by the

manufacturer are:

Feed Zone 1 > X >>

120°C /145°C /145°C /145°C.

135°C

2. Before blowing the raw material, you should check that the moisture level does not exceed 1%. If the moisture level is greater than 1%, the resin will need to be dried before film blowing. The drying temperature is no higher than 65 °C and drying time should be no longer than one hour.

3. Before blowing the film, the film blowing extruder needs to be purged and cleaned of residual polyethylene and then the BIO-S2-B-F resin can be used as the last cleaning step, after which the temperature can be adjusted to the correct settings.

4. The screw rotation speed should be slow at first and then fast to match the haulage speed which is first slow and then fast as well.

5. The inside and outside aeration should be gradually changed from weak to strong. Cold aeration is better; 10-15 °C works to avoid film blocking problems.

6. The preferred blow-up ratio is 1:2.5 or 1:3. The height from die orifice to the nip roll should be higher than 2.5 m to ensure full cooling and prevent film

blocking.

Comparative Properties

A 30 micron in BIO-S2-B-F gives similar performance properties to a 20 micron HDPE bag if properly blown with an air-ring chilled down to 10-12 °C and if allowed to 'condition' for 48 hrs. These thermoplastic starch polymer films need time to reabsorb moisture to develop their full physical properties.

Biodegradability

BIO-S2-B-F is a completely biodegradable polymer suitable for the manufacturing of film-type products. It can be directly used in the film blowing process. It does not contain any non-degradable polymers such as PE, PP, PS and PVC. Independent university testing shows that after biodegradation BIO-S2-B-F does not leave any harmful residues.

This film grade has been evaluated for compostability in accordance with INTERNATIONAL STANDARD ISO 16929 (2002-11-01) "Plastics-Determination of the Degree of Disintegration of Plastic Materials under Defined Composting Conditions in a Pilot Scale Test". According to the European certification scheme for biodegradable materials, Performance Standard EN 13432, the pass threshold for this test is 90% of the material passing through a 2mm sieve after the 12 week test period.

The testing shows that the plastic film samples used in this test are completely compostable as demonstrated by their 100% disintegration after 3 months and > 90% mineralization in less than 6 months. In the laboratory scale composting test according to ISO 14855: 1999 Biograde film grade resin reached 90% biodegradation relative to cellulose reference material and meets the biodegradability requirement specified in the EN 13432 standard.

Other Comments

1. Film blown thin. The thickness can be less than 0.02 mm.

2. Good compatibility. The film is transparent with no granulation or lines of TPS seen in the film.

3. Easy film blowing performance. The film bubble is stable and no additional air cooling is needed.

4. Easy to add colours using Biodegradable colourants based on starch, PLA, or biodegradable polyester based masterbatch.

5. Thermal sealing strength is as good as PE.

6. The biodegradable trim waste can be reprocessed and recycled as long as it is kept segregated (ie. not mixed with polyethylene) and kept dry. The film edge trim and bag handle "punch-outs" can be processed through a Muncy, an Erema or similar film reprocessing unit into regrind pellets or through an agglomerator or compactor to produce agglomerated/compacted pellets. The regrind pellets can be fed into the main film process at a ratio of 10:90 regrind/virgin resins.

7. Care should be taken to ensure the zone temperature/s of any reprocessing equipment is not set at greater than 155 deg. C or else resin degradation (ie. brown discoloration, odour and fumes) will result.

Packing and Storage

Packing

In 25kgs net

bag or 500kgs jumbo bag, 15mts in 20Fcl with pallets.

Storage

Keep tightly closed and store in cool and dry place. Avoid heat and sunlight. Once container is open, use the product immediately.

Frequently Asked Questions

Q1: May I get one sample before placing order?

Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight;

For those high value products, you just need to freight and certain product cost. When we both cooperate for

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C or Alibaba trade insurance. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide

for you all are qualified. We will have goods tested and provide COA before delivery for sure.

From pill bottles and life-saving medical equipment to business-essential tools and household appliances, there are uncountable numbers of products that manufacturers make out of plastic. Polymers are truly exceptional materials.

While plastic will likely always have a place in our lives, it’s clear that our over-reliance on it has severely impacted our planet. Thankfully, biodegradable resins (also known as biopolymers and bioplastics) may provide a sustainable solution to this issue.

However, in contrast with synthetic resins, biodegradable resins present some unique challenges. If you’re interested in how biodegradable resins could work for your products, this piece is for you. In it, Anova Innovations will explore:

• Global plastic production
• The biodegradable resin market
• Challenges of using biodegradable resins
• The significance of conformal cooling

Global Plastic Production

People produce about 400 million tons of plastic waste every year. Half of all of this plastic is designed for single-use purposes, meaning it’s discarded after one use.

For the past five decades, the rate of plastic production has grown faster than any other material production. At our current rate, the global production of plastic is forecasted to reach 1.1 billion tons by 2050. That’s like producing eight Empire State Building’s worth of plastic a day. Despite recycling efforts, roughly 98 percent of single-use plastic products are still made from “virgin” fossil fuel feedstock.

The Biodegradable Resin Market

In search of a more sustainable option, many manufacturers are trying to identify how they can incorporate biodegradable plastic into their production processes. As their ideas transition from theoretical to practical, the biodegradable polymer market is poised to experience significant growth.

The global Biodegradable Polymer market reached $7.25 billion in 2021 and is anticipated to reach $23.65 billion by 2029. This equates to a staggering compound annual growth rate (CAGR) of 14.4 percent between 2022 and 2029.

This growth will be primarily due to biodegradable polymer use in water bottles, food containers, packaging, and medical supplies. Additionally, some governments are combating single-use plastics by creating initiatives and bans that encourage biodegradable plastics.

For instance, the United Kingdom has a wide variety of bans on plastic stirrers, drinking straws, plates, and cutlery. Likewise, St. Kitts and Nevis have a “Plastics Be Gone” campaign that aims to reduce single-use plastics by 30 percent over the next five years. There are also eight states that have outlawed single-use plastic bags.

There is an expense for manufacturers to transition from synthetic plastics to biodegradable resin. But surveys suggest that the majority of Americans are willing to pay more for sustainable products.

Currently, the biopolymers gaining the most prominence are those made from cellulose, chitosan, starch, and proteins. Environmentalists and manufacturers alike are now looking at how to source these materials from the food, pharmaceutical, and agricultural industries, which produce all of them as a byproduct of their manufacturing processes.

As biodegradable polymers become more widely adopted, people will realize a myriad of benefits. For instance, bioplastics:

• Produce fewer carbon emissions
• Use less energy in production
• Use less harmful chemicals
• Decompose quickly

Challenges of Using Biodegradable Resins

Unfortunately, bioplastics don’t come without a few disadvantages. Most notably, they have low-to-poor mechanical properties, meaning they don’t perform as well as their synthetic counterparts when in a load-bearing application. Due to most bioplastics’ limited mechanical properties, there is also a smaller range of uses.

Interestingly, the same thing that makes bioplastics environmentally friendly is the thing that makes them challenging to work with. With rapid degradation rates, the use cases for bioplastics become slightly more limited to single-use and limited-use applications. The high hydrophilic capacity of biopolymers also restricts the strength of products.

Due to these properties, many manufacturers have found it challenging to integrate bioplastics into their current processes. Additionally, with the price of bioplastics being significantly more expensive, they’re hesitant to experiment.

However, with the right molds, you can seamlessly replace synthetic plastics with biodegradable resins. In order to ensure improved product surface quality, better filling of the mold cavity, and improved cycle time, you need to use a mold with conformal cooling channels. These channels optimize the heating and cooling process to ultimately produce better products, even when using biodegradable resins.

Additive Manufacturing Makes Conformal Cooling Possible

Additive manufacturing (AM) is a process that can create complex molds by adding layers of material, such as steel, metal, or plastic. Nearly every step of this process is computer-aided and automated in order to produce highly intricate parts.

When using traditional subtractive manufacturing practices, manufacturers must mill and drill straight-line water cooling channels to cool the part. Now, by building molds layer by layer, AM provides the opportunity to create curved channels that follow the part’s geometry. With improved cooling abilities, AM opens up new opportunities to leverage the power of bioplastics.

Innovate with Anova

Bioplastics can help manufacturers reduce their carbon footprint and make customers happy. To minimize the challenges that come along with biodegradable resin, you should consult with an additive manufacturer that specializes in creating conformal cooling molds.

Not only will you see massive increases in productivity, but your ability to work with bioplastics will improve significantly. If you’re interested in how 3D steel-printed molds can enhance your business, reach out to Anova Innovations.

If you want to learn more, please visit our website resin degradable supplier.