จำนวน Repository ( 8 )

การศึกษา สํารวจ และวิเคราะห์องค์ประกอบของเสีย และแนวทางการใช้ของเสีย อาหารทะเล ตลาดทะเลไทย จ.สมุทรสาคร
การศึกษา สํารวจ และวิเคราะห์องค์ประกอบของเสีย และแนวทางการใช้ของเสีย อาหารทะเล ตลาดทะเลไทย จ.สมุทรสาคร

This research is a survey study. And analyze the waste composition And guidelines for the use of seafood waste in the Thai seafood market Samut Sakhon Province According to the survey 96.27 percent of the waste comes from restaurants. This is because Most fresh seafood restaurants Will feed the seafood whole Therefore there is no garbage such as shrimp if it is a restaurant the customers will have left shrimps on the head. But the fresh restaurants give away the shrimp and crab so the garbage from the fresh restaurant only has fishbone which is very small. Because most customers accept the whole fish There were also some places where the vendors cut the fish and left their bones. But when analyzed by type of waste it found that shell waste was the highest. Which is up to 55.29 percent. Followed by shrimp shells fish bone and fish heads and crab shells the study found that seafood debris had material properties with low moisture content. It also contains calcium as the main component. For example shellfish contain calcium as the main component which is found in approximately 98.50 percent. Not only striped shells Fishbone shrimp and crab shells are also low humidity and high in calcium. The bizarre one was holding a sea bass head and a grouper head with a high amount of organic matter. And with low ash content food waste that should be analyzed for the possibility of recycling are striped shells cockle shells shrimp shells fishbone shells fishbone dumplings tuna and crab shells.

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การใช้เศษพลาสติกโพลิเอทธิลีนเทเรฟทาเลตเป็นวัสดุผสมสำหรับผลิตไม้เทียมขยะกล่องนมที่มีความแข็งแรงสูง
การใช้เศษพลาสติกโพลิเอทธิลีนเทเรฟทาเลตเป็นวัสดุผสมสำหรับผลิตไม้เทียมขยะกล่องนมที่มีความแข็งแรงสูง

The objectives of this research are to study the production to find the proper ratio to test the properties to suggest the implementation and to transfer the technology of high strength milk carton waste artificial wood mixed with poly ethylene terephthalate (PET) plastic waste. The ratios of this artificial wood included milk carton waste: PET plastic waste equal to 80:20 75:25 70:30 65:35 and 60:40 by weight. The milk carton and PET plastic wastes were grinded though sieve no.4. The artificial woods were casted by hot compression with 180 degree of Celsius for 5 minutes. The samples tested follow the TIS.966-2547 standard. From the results the 60:40 of ratio was the proper ratio which can pass the standard. The increasing of PET waste effected to decrease the density moisture and swelling of properties. In case of bending strength elastic modulus and tensile strength perpendicular to surface the increasing of PET effected to decrease their properties. The developed artificial wood mixed with milk cotton waste and PET plastic waste has the possibility to implement in decoration and construction both interior and exterior wall building. These results can register the petty patent and write the research paper which to transfer the technology.

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The Effect of chain extender on rheological properties of recycledpoly (ethyleneterephthalate)
The Effect of chain extender on rheological properties of recycledpoly (ethyleneterephthalate)

The effect of chain extender on the improvement of molecular structure and rheological properties in shear and elongation of recycled poly (ethylene terephthalate) was studied. The results suggested that addition of chain extender increased the molecular weight and broader molecular weight distribution of recycled poly (ethylene terephthalate). A gel fraction of cross-linked material was formed and the amount of gel content was dependent on the amount of chain extender used. Moreover it was found that the addition of chain extender increased the shear and elongational viscosities of recycled poly(ethylene terephthalate). The increases of viscosities were explained that the extension of poly (ethylene terephthalate) chains caused a reduction in chain mobility. As for the tensile properties at the molten and solidified state it was seen that the increase of tensile properties resulting from chain extender rose up to 0.6 wt% before it reduced at the chain extender loading of 0.9 wt%.

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