Expandable Polystyrene Virgin EPS Resin Beads Foam Raw Material for Block Making (1600545416751)

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Product Overview

Description









What is EPS?
E.P.S. (Expandable Poly Styrene) is a lightweight, rigid, plastic foam insulation material produced from solid particles of polystyrene. Expansion is achieved by virtue of small amounts of pentane gas dissolved into the polystyrene base material during production. The gas expands under the action of heat, applied as steam, to form perfectly closed cells of EPS. These cells occupy approximately 40 times the volume of the original polystyrene bead. The EPS beads are then molded into appropriate forms suited to their application. Products made from foamed polystyrene are nearly ubiquitous, for example packing materials, insulation, and foam drink cups.
Properties:
Main Component: 92%~96% polystyrene
Appearance: Colorlessly transparent or opaque tiny beads




Detials for Each Grade:
High expansion: Providing high expansion ratio, suitable for producing low density blocks, insulation boards and packaging products;
High Strength : Providing medium expansion ratio, suitable for producing general packaging products and medium density blocks;
Fast Cycling: Providing medium expansion ratio with short molding time, suitable for molded products for shape molding machine;
Flame Retardant: Providing medium and high expansion ratio, suitable for building insulation panels and block and
other products;





What are the wild-spread applications:

1. Packaging: i.e.: Vegetable and fruit box, Fish box, Electronics packaging;
2. New Building Material: i.e.: Sandwich panel, 3D panel, Brick insert, Insulated Concrete Foam (ICF)
3. Plastic Foam Flotation: i.e.: Float
4. Decorating Material: i.e.: Cornices, Ceiling tiles, Articles in arts and crafts for advertisement and decoration;
5. Full Mould Casting: i.e.:
6. Protecting material: i.e.: Anti-freeze pad to cushion foundations of roads and railways in high cold region;
7. Filter material: i.e.: Applicable in medium and small scaled water supply system;
8. Other applications: i.e.: Applicable in seeding nurseries for hydroponics; Mixed with clay and cement to manufacture
lightweight wall tiles and cement castings; As filling material for pillow……








EPS Package


Packing
Weight/Kgs
20’FCL capacity
40’FCL capacity
Paper bag (Laminated Kraft paper)
25
17.00MT
25.50.00MT
Jumbo bag (Super sack)
850
17.00MT
25.50.00MT




About Storage
1. EPS contains volatile and combustible composition and should therefore be kept far away from any source of
ignition,preferably in a cool, dry and well-ventilated storeroom below 25℃ out of direct sunlight.
The effective shelf life is 6 months at the temperature below 25℃, however the ideal material should be used within
month from manufacturing. Once the package is unfolded, the blowing agent will be volatilized rapidly. EPS should be
therefore used immediately after the bags opened to avoid the reduction of expansion ratio or losing effectiveness.
2. Reasonable weight loss: EPS contains high-volatility blowing agent (C5). It is therefore normal to lose weight in the
first half month after the product leaving the factory.


Problems and Solutions
The Analysis For Shaping
Phenomenon
Analysis
Measure
1.Bad binding
No enough time for heating
Prolong heating time or increase steam pressure
Too high steam pressure
Prolong heating time or increase steam pressure
Too long mature time
Reduce mature time for 6 to 24 hours
Frothing beads'water content is to high
Blow cool-air or hot-air to dry,prolong mature-time but no morethan 24 hours
Moist steam;high water content
Remove water from the steam
Low expand rate
Control the expand rate from being too high
Bad mould
Check whether the steam hole of mould is blocked up;whether accumlated filth in steam room does harm to heat-tramsfer;whether the
mould is not tight,the steam is escaping
2.Bad moulding unloading
Too long heating time
Reduce heating time
Too high temperature
Reduce steam pressure
Not enough cooling
Increase cooling water time,or prolong cooling time
Rough mould surface
Coat mould-unloading agent or smooth the surface
3.
Surface shrinking of the products
Too long heating time
Reduce heating time
Too high steam pressure
Reduce steam pressure
Too fast cooling
Increase the temperature of cooling water;reduce cooling water;prolong cooling time
Not enough mature-time
Prolong mature time for 6 to 24 hours
Not enough feeding or uneven feeding
Check whether the feeding inlet is blocked up;increase the pressure of the compresses air;prolong feeding time;increase mould'
space or use smaller pre-expand beads instead
Too high expand rate
Adjust expand rate
4.
Bad binding of the appearance of products
Uneven feeding
Check whether the feeding inlet is blocked up,prolong feeding time; increase wind pressure ;increase mould's space
Too much accumulated water in the mould
Prolong discharging time;increase blowing and discharging steam or air
Uneven cooling and heating of the mould
Check whethe the steam hole is blocked up;whether the desigh of the mould is reasonable
5.
Expanding of the shaped products
Not enough time for frothing beads to be mature
Prolong mature time
Not enough cooling
Prolong cooling time;increase cooling water;check the condition of the compontent
6.
Good binding on the surface,but bad inside
Too high steam pressure;too fast heating speed
Reduce steam pressure;prolong heating time
Not enough mature time
Prolong mature time
Moist pre-expand beads
Dry the beads
Expand rate is too low;old raw material
increase expand rate;use new raw material
Too much liniment
Inform the production plant to reduce the Liniment
















1. Q: Are you a factory or Trading company? A: We are a factory and the first manufacturer China with over 10 years experiences in this field.

2. Q: Can you customize the machine according to my needs? A: Yes, we accept the customized machine, our company has an experienced professional design team, we can give you our professional suggestions according to your requirements and design a cost-effective machine for your needs. 3. Q: Does your price have a discount for dealers? A: Yes, we have a favorable policies for
dealers. Please tell me your order quantity or annual purchase quantity. The price will be adjusted according to the order
quantity. For details, please consult our sales staff. 4. Q: Can you provide ODM and OEM services? A: Yes, our R&D team with an
average of 10 years experiences, the ODM&OEM service are satisfied with our customers.


1600545416751
0.0152 s.