PVC-silika kompozit malzemelerinin geliştirilmesi
Başlık çevirisi mevcut değil.
- Tez No: 35857
- Danışmanlar: PROF. DR. DEVRİM BALKÖSE
- Tez Türü: Doktora
- Konular: Kimya Mühendisliği, Chemical Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1994
- Dil: Türkçe
- Üniversite: Ege Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Kimya Mühendisliği Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 251
Özet
212 SUMMARY In the present study a PVC-silica composite which can be used for the production of shoe-insole was developed. The strength of the composite was enhanced using silanized silica as filler component. The porous structure of the composite was mainly provided via the utilization of plastlsol-plastigel technology. The capacity of water vapor adsorption and the permeability of the composite were improved by the introduction of precipitated silica into the platisol composition. It was anticipated that the highly porous and highly hydrophilic character of silica would be reflected into composites. Thus the composite samples having varying amount of silica were prepared basically as silanized and non- silanized types. As a conclusion, the contribution of the effect of both the introduction of silica and its silane modification onto the composite structure were the main interests of the study. The product which is basicl\y a PVC-based material was plasticized by 60 phr DOP. Synergetic zinc-calcium stearete mixture and EPSO (epoxidized soybean oil) were used as the thermal stabilizers to prevent the product from thermal degradation effect of the high temperature application of the gelling process. After the evacuation of the entrapped air which takes place into the plastisols, 50 bar pressure and 140°C temperature were applied onto them between A 314 stainless steel plates for 16 minutes. The plastigel sheets were removed from the- die plates after cooling down to 40-50°C. Platigel samples were about 0.5 mm thick for strength tests and about 0.2 mm for the other tests.213 The adsorption isotherms were obtained for composite samples and even for silica component using Cahn Microbalance (CAHN 2000) equipment. A mezoporic structure observed with Type-IV isotherm and \0O.O m /g surface area of silica were determined. 0.13-1.65 % water vapor adsorption capacity of composites was also observed on Microbalance apparatus. Although the diminished water vapor adsorption effect of it, the silane modification enhances the mechanical strenght via the improvement of the silica-PVC interface of the composite. This modification lowered the mechanical strength decrease on wet application of the present study about 6.6 % and hindered the migration of DOP from composite about 24 %. Silane application resulted even in smoother and thinner composites. The comparative study showed that although the composites were weaker from the point of the solubility of the water vapor compared to leather, the water vapor permeability in composite was very close to that of 3 leather. Solubility values were 115 and 1-7 cm 3 -5-6 water/cm.cmHg) and permeabilities were ~10 and ~10 3 2 (cm water (STP ). cm/s) / { cm.cmHg) for leather and composites, respectively. Permeability feature of composites were mainly provided by their porojus structure similar to that of leather. The effective diffusion coefficients of water in leather and composites were 10~ and 10~ m /s, respectively. In conclusion} comparison with leather showed that the composite developed in the present study was very promising as a leather substituent for the production of shoe-insole.
Özet (Çeviri)
213 The adsorption isotherms were obtained for composite samples and even for silica component using Cahn Microbalance (CAHN 2000) equipment. A mezoporic structure observed with Type-IV isotherm and \0O.O m /g surface area of silica were determined. 0.13-1.65 % water vapor adsorption capacity of composites was also observed on Microbalance apparatus. Although the diminished water vapor adsorption effect of it, the silane modification enhances the mechanical strenght via the improvement of the silica-PVC interface of the composite. This modification lowered the mechanical strength decrease on wet application of the present study about 6.6 % and hindered the migration of DOP from composite about 24 %. Silane application resulted even in smoother and thinner composites. The comparative study showed that although the composites were weaker from the point of the solubility of the water vapor compared to leather, the water vapor permeability in composite was very close to that of 3 leather. Solubility values were 115 and 1-7 cm 3 -5-6 water/cm.cmHg) and permeabilities were ~10 and ~10 3 2 (cm water (STP ). cm/s) / { cm.cmHg) for leather and composites, respectively. Permeability feature of composites were mainly provided by their porojus structure similar to that of leather. The effective diffusion coefficients of water in leather and composites were 10~ and 10~ m /s, respectively. In conclusion} comparison with leather showed that the composite developed in the present study was very promising as a leather substituent for the production of shoe-insole.213 The adsorption isotherms were obtained for composite samples and even for silica component using Cahn Microbalance (CAHN 2000) equipment. A mezoporic structure observed with Type-IV isotherm and \0O.O m /g surface area of silica were determined. 0.13-1.65 % water vapor adsorption capacity of composites was also observed on Microbalance apparatus. Although the diminished water vapor adsorption effect of it, the silane modification enhances the mechanical strenght via the improvement of the silica-PVC interface of the composite. This modification lowered the mechanical strength decrease on wet application of the present study about 6.6 % and hindered the migration of DOP from composite about 24 %. Silane application resulted even in smoother and thinner composites. The comparative study showed that although the composites were weaker from the point of the solubility of the water vapor compared to leather, the water vapor permeability in composite was very close to that of 3 leather. Solubility values were 115 and 1-7 cm 3 -5-6 water/cm.cmHg) and permeabilities were ~10 and ~10 3 2 (cm water (STP ). cm/s) / { cm.cmHg) for leather and composites, respectively. Permeability feature of composites were mainly provided by their porojus structure similar to that of leather. The effective diffusion coefficients of water in leather and composites were 10~ and 10~ m /s, respectively. In conclusion} comparison with leather showed that the composite developed in the present study was very promising as a leather substituent for the production of shoe-insole.
Benzer Tezler
- Halloysit içeren PVC kompozitlerin üretimi: Isıl ve mekanik özelliklerinin incelenmesi
Production of PVC composites containing halloysite: Investigation of thermal and mechanical properties
SEMİH ŞENGÜL
Yüksek Lisans
Türkçe
2022
Polimer Bilim ve TeknolojisiYalova ÜniversitesiPolimer Malzeme Mühendisliği Ana Bilim Dalı
PROF. DR. SİNAN ŞEN
- Investigation of electrical, thermal and chemical characteristics of zinc borate-filled htv silicone rubber composites
Çinko borat katkılı htv silikon kauçuk kompozitlerinin elektriksel, ısıl ve kimyasal özelliklerinin incelenmesi
İDRİS ÖZDEMİR
Yüksek Lisans
İngilizce
2023
Elektrik ve Elektronik Mühendisliğiİstanbul Teknik ÜniversitesiElektrik Mühendisliği Ana Bilim Dalı
DOÇ. DR. SUAT İLHAN
- Investigation of characteristics and performance of polyvinylchloride (PVC) ultrafiltration membranes impregnated with silica oriented carbon nanotubes
Silika kaplı karbon nanotüp içeren polivinilklorür (PVC) ultrafiltrasyon membranların özellikleri ve performansının araştırılması
CHAHRAZED MAHMOUDI
Yüksek Lisans
İngilizce
2019
Kimya MühendisliğiEskişehir Teknik ÜniversitesiKimya Mühendisliği Ana Bilim Dalı
DR. ÖĞR. ÜYESİ ELİF DEMİREL
- Vollastonit dolgulu poliamitin krom kaplama sürecinin iyileştirilmesi ve termal çevrim dayanımının değerlendirilmesi
Enhancment of chromium coating with wollastonite filled polyamid process and investigation of its thermal cycling resistance
HAKAN YAZICI
Yüksek Lisans
Türkçe
2019
Kimya MühendisliğiKocaeli ÜniversitesiKimya Mühendisliği Ana Bilim Dalı
DR. ÖĞR. ÜYESİ RAMİZ GÜLTEKİN AKAY
- Performance study of non-toxic anticorrosive pigments in formulation of epoxy primers
Epoksi astarların formülasyonunda toksik olmayan antikorozif pigmentlerin performansının incelenmesi
AYŞE ALTAN
Yüksek Lisans
İngilizce
2019
Kimya MühendisliğiEge ÜniversitesiKimya Mühendisliği Ana Bilim Dalı
PROF. DR. MUSTAFA DEMİRCİOĞLU