ประเภทของเสีย
กลุ่มยาง

ชนิดของเสีย
เศษยางธรรมชาติ

ตัวอย่างของเสีย
Natural rubber scraps from the tire manufacturing process

องค์ประกอบหลัก
- Natural rubber (NR) : 100%

คุณสมบัติทางกายภาพและเคมี
- Density : 0.906 - 0.93 g cm-3 at 20 °C

- Refractive index : 1.5191 - 1.52 at 20 °C

- Melting point : 30 - 35.5 °C

- Value Thermal expansion coefficient : 6.7x10-4 °C ^-1

- Thermal conductivity : 0.19 - 0.26 W m ^-1 K ^-1

- transition temperature Glass transition temperature : (-75)°C

- Maximum service temperature : (-50) -50°C

- Solubility :

· Solubility of Henze

Hildebrand solubility parameter : 17- 18.4 MPa0.5

- Surface tension : 32 mN m ^-1

- Dielectric strength : 17-50 kV mm ^-1

คุณสมบัติของของเสียสำหรับเข้าสู่กระบวนการรีไซเคิล
no specific properties can enter the recycling process immediately

กระบวนการรีไซเคิล
- Separation of contaminants that are not natural waste

- Devulcanization process (Devulcanization) rubber reacts with a moderate amount of sulfur at temperatures above the melting point of sulfur. The sulfur reacted with this will form covalent bonds between the polymer chains to form the same molecule, resulting in stable rubber quality at various temperatures. More flexibility Resistant to heat and sunlight More difficult to dissolve in solvents

- Mixing process of natural rubber and synthetic rubber

- Process of adding various chemicals, including Carbon black, Vulcanizing agent, Protective agent and oil

- Bundling

process - Rubber coating process

- Forming process of wire edge (Foaming)

- the process of making canvas frame and plastering rubber on canvas.

- Process of making steel wire and plastering with wire by Extrusion machine and Calender machine

- Assembly process of rubber frame

- The process of curing the tread pattern on the finished tire -

the process of cutting excess rubber (Trimming)

- the process of checking the balance of the tire (Inspection)

ผลิตภัณฑ์ที่ได้จากการรีไซเคิล
- tires

ลักษณะการนำไปใช้ประโยชน์
- Alternative raw material

ประเภทอุตสาหกรรมที่มีศักยภาพในการรีไซเคิล
- No. 52 Factory engages in rubber business

กฎหมายที่เกี่ยวข้อง
- Enhancement and Conservation of National Environmental Quality Act, B.E. 2535

- Public Health Act, B.E. 2535 and No. 2, B.E. 2550

- Hazardous Substance Act, B.E. 2535

- Factory Act, B.E. 2535

- Notification of Ministry of

Industry Re: Disposal of Sewage or Unused Materials B.E. Of the operators of treatment and disposal of sewage or unused materials, B.E. 2550

- Regulations Department of Industrial Works Regarding the details of criteria for consideration of permission for type or type of factory No. 105 and No. 106, B.E. 2545 (2002)


แหล่งข้อมูลอ้างอิง
[1] http://rubbermarketnews.net/2011/02/high-global-prices-hit-tyre-firms-rubber-imports/

[2] http:// www.sppindus.com

[3] George Wypych, 2012 , Handbook of polymer, Vol.1, pp.425-428

[4] http:// www.rubbercenter.org

[5] http://www.tpa.or.th/writer/read_this_book_topic.php?pageid=21&bookID =258&read=true&count=true

[6] Rader, Charless P, Baldwin, Sheryl D, Cornell, David D, Sadler, Georoge D, Stockel and Richaed F, 1995, Plastics, rubber and paper recycling, Washington, DC.