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Lọ thuốc nhựa HDPE là sản phẩm đựng thuốc sử dụng dụng vật liệu nhựa HDPE. Các sản phẩm lọ thuốc này rất đa dạng về mẫu mã cũng như dung tích. Các dung tích phổ biến như: 100cc. 150cc, …
Nhựa HDPE là một loại nhựa nhiệt dẻo mật độ cao. HDPE là cụm từ viết tắt của High-Density Polyethylene (polyetylen có mật độ cao). Để phân biệt với các vật liệu nhựa khác thì nhựa HDPE được ký hiệu là nhựa số 2.
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Although HDPE sticks extremely well onto gaffer tape it's very hard to print infilled objects onto gaffer because it warps when heated.
So we bought some 1mm HDPE sheets at a local plastic store. If you sandpaper the surface of the sheet it sticks very well. This reduced the deformations greatly but as we all know HDPE still warps a little bit :(
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DoITPoMS, University of Cambridge
The surface shows periodic ridges at right angles to the flow direction. These are indicative of flow instability and a periodic slipping of the melt at the die wall. It also shows surface scratches which are typical of polymer surfaces. Hard abrasive particles, dragged across the surface, have displaced material to form grooves and ridges.
System
High density polyethylene (HDPE)
Composition
Not specified
Reaction
Processing
A 'parison' (tube) is continuously extruded into a mould which periodically closes together with a knife, to cut suitable lengths which are then expanded to fill the mould
Applications
Blow moulding is a continuous process used in the manufacture of bottles as well as sheets, bags, and tubes.
Sample preparation
The specimen has been sputter-coated with gold, to give a conducting surface
Technique
Scanning electron microscopy (SEM)
Contributor
J A Curran
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
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Demonstration of stepping onto the footpad on the base of the Silva Cell 2. The footpad allows ease of movement for installers to walk freely through the system during assembly.
The base is made of high-density polyethylene.
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These are the first three 3d printed parts (in chronological order from left to right) we printed with our refurbished RepRap at Metalab.
For these parts we used a 0.8mm nozzle to extrude HDPE that we extruded at about 180°C (not sure how accurate our thermistor is though). The resulting walls are 2.5 to 3mm thick.
At the bottom of the first two parts you can see the remains of the gaffer tape we used as a base for the HDPE to stick onto.
The second part is not so nice. The reason for this seems to be the increased Z distance we used for this part. This decreased the quality dramatically though and leads to some severe curling so we moved back to the old Z distance and just slightly decreased the extruding rate for the third part which consists of 17 layers of HDPE. It shows some warping but is very regular :) a good way to end the day at 2:30 AM...
Our water bottles - Nalgene HDPE in the back and no-name in the front - wait to be placed in backpacks for a hike into Bryce Canyon. For a review of the Nalgene HDPE bottles, visit www.annestravels.net/gear-review-nalgene-hdpe-water-bottle/
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The Nalgene HDPE narrow mouth water bottle. For a review of the bottle, visit www.annestravels.net/gear-review-nalgene-hdpe-water-bottle/
Dell is integrating 100 percent recycled High-Density Polyethylene (HDPE) thermal-formed cushions comprised of materials including milk jugs and laundry detergent bottles. An estimated 33 million recycled milk jugs will be integrated into desktop and laptop packaging in 2009.
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Top view of the Nalgene HDPE narrow mouth (left) and wide mouth water bottles. For a review of the bottle, visit www.annestravels.net/gear-review-nalgene-hdpe-water-bottle/
Stacks of paper and High-density polyethylene (HDPE) bottles, recycliing symbol #2. Recycling Center, Los Angeles, California, USA
Designer James Shaw packed his HDPE extruder gun, two bags of waste HDPE pellets and joined the Institute of Making to reconsider commonly used materials through surprising new processes. As part of the session, James explored the Institute’s wondrous Materials Library and opened up a conversation about our relationship to the made world. Participants made unique object designs in reused polymorph and HDPE.