Synthesis of Dibutyl tin (IV) Dilurate and its Application as a Safe Thermal Stabilizer in Polyvinyl Chloride

2014 ◽  
Vol 1 (3) ◽  
pp. 1-9
Author(s):  
Mohammad Reisi ◽  
◽  
Mortaza Hajan
Keyword(s):  
Polyvinyl Chloride ◽  
Thermal Stabilizer

scholarly journals Facile synthesis of exfoliated vermiculite nanosheets as a thermal stabilizer in polyvinyl chloride resin

RSC Advances ◽  
2019 ◽  
Vol 9 (34) ◽  
pp. 19675-19679
Author(s):  
Weiliang Tian ◽  
Zhong Li ◽  
Kewei Zhang ◽  
Zhenhong Ge
Keyword(s):  
Thermal Stability ◽  
Hydrogen Chloride ◽  
Anion Exchange ◽  
Polyvinyl Chloride ◽  
Facile Synthesis ◽  
Excellent Thermal Stability ◽  
Thermal Stabilizer

Well-defined vermiculite nanosheets are exfoliated by a facile water-assisted anion-exchange approach. As its negatively charged laminates can stabilize hydrogen chloride, the VMT nanosheets show excellent thermal stability for PVC resin.

scholarly journals Efficient Thermal Stabilization of Polyvinyl Chloride with Tannin-Ca Complex as Bio-Based Thermal Stabilizer

2015 ◽  
Vol 06 (05) ◽  
pp. 360-372 ◽  
Author(s):  
Hussein A. Shnawa ◽  
Moayad N. Khalaf ◽  
Yousef Jahani ◽  
Abed Alameer H. Taobi
Keyword(s):  
Polyvinyl Chloride ◽  
Thermal Stabilization ◽  
Thermal Stabilizer

scholarly journals Sintesis Merkaptoetil Karboksilat sebagai Bahan Baku Stabiliser Termal Polivinil Klorida: Variasi Sumber Asam Lemak

2020 ◽  
Vol 18 (2) ◽  
pp. 47
Author(s):  
I Dewa Gede Arsa Putrawan ◽  
Adli Azharuddin ◽  
Dendy Adityawarman ◽  
Dicka Ar Rahim
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyvinyl Chloride ◽  
Raw Materials ◽  
Batch Reactor ◽  
Strong Acid ◽  
Raw Material ◽  
Thermal Stabilizer ◽  
Palm Fatty Acid Distillate ◽  
Rigid Pvc

Abstrak. Merkaptoetil karboksilat merupakan bahan baku stabiliser termal polivinil klorida atau polyvinyl chloride (PVC) berbasis timah organik. Stabiliser termal perlu ditambahkan ke dalam resin PVC sebelum diekstrusi untuk mencegah kerusakan karena pengerjaan panas. Stabiliser termal PVC dari timah organik dikenal sangat efektif, khususnya untuk aplikasi PVC kaku seperti pipa dan bingkai jendela. Penelitian ini bertujuan mengevaluasi sintesis merkaptoetil karboksilat dari asam lemak dan merkapto etanol dengan variasi sumber asam lemak yang meliputi asam lemak sawit, dedak padi dan biji kapuk. Percobaan dilakukan dalam sebuah reaktor partaian (batch) dengan asam kuat sebagai katalis. Percobaan dilakukan pada temperatur 60-80°C dan ekses merkapto etanol 10%. Kinerja sintesis dievaluasi melalui pengukuran kadar gugus merkaptan dan angka asam dalam produk serta perolehan produk. Pada rentang temperatur 60-80°C, ketiga asam lemak memberikan produk dengan kadar merkaptan pada rentang 6,4-7,8%.  Temperatur 70°C merupakan temperatur terbaik karena menghasilkan produk dengan kadar merkaptan tertinggi tanpa memadat selama penyimpanan. Pada temperatur ini, produk memiliki angka asam pada rentang 11-41 mg KOH/g dan perolehan pada rentang 70-81%. Ketiga sumber asam lemak memberikan produk dengan kadar merkaptan yang mencukupi untuk dapat digunakan sebagai bahan baku stabiliser PVC. Mempertimbangkan kualitas produk dan ketersediaan di pasaran, distilat asam lemak sawit dipandang sebagai bahan baku yang paling baik. Kata kunci: asam lemak, merkaptoetil karboksilat, polivinil klorida, stabiliser termal. Abstract. Synthesis of Mercaptoethyl Carboxylate as Raw Materials for Polyvinyl Chloride Thermal Stabilizer: Variation in Fatty Acid Source. Mercaptoethyl carboxylate is a raw material for organotin-based polyvinyl chloride (PVC) thermal stabilizer. Thermal stabilizers need to be added to the PVC resin before extruded to prevent degradation due to heat treatment. Organotin PVC stabilizers are known to be very effective, especially for rigid PVC applications such as pipes and frames. This study was aimed to evaluate the synthesis of mercaptoethyl carboxylate from fatty acids and mercaptoethanol with various sources of fatty acids including palm, rice bran and kapok seed fatty acids. The experiment was carried out in a batch reactor with a strong acid as a catalyst. The experiments were conducted at 60-80°C and 10% mercapto ethanol excess. The performance of synthesis was evaluated by measuring mercaptan and acid contents and yield. In the range of 60-80°C, all three fatty acids provided products with mercaptan levels in the range of 6.4-7.8%. A temperature of 70°C is the best temperature as it gave a product with the highest mercaptan content without solidification during storage. At this temperature, the product had acid values in the range 11-41 mg KOH/g and yields in the range of 70-81%. Considering product quality and availability in the market, palm fatty acid distillate was seen as the best raw material. Keywords: fatty acid, mercaptoethyl carboxylate, polyvinyl chloride, thermal stabilizer. Graphical Abstract

scholarly journals Sintesis Dimerkaptoetil Adipat sebagai Bahan Baku Stabiliser Termal Polivinil Klorida berbasis Timah Organik Ester Balik

2020 ◽  
Vol 8 (2) ◽  
pp. 85-92
Author(s):  
I Dewa Gede Arsa Putrawan ◽  
Nikanor Natan ◽  
Rizal Abdan Syakuron
Keyword(s):  
Polyvinyl Chloride ◽  
Adipic Acid ◽  
Raw Materials ◽  
Batch Reactor ◽  
Experimental Tests ◽  
Side Product ◽  
Thermal Stabilizer ◽  
Room Condition ◽  
Health Factors ◽  
Better Than

This research aimed to study the synthesis of dimercaptoethyl adipate as raw materials for polyvinyl chloride thermal stabilizer from mercaptoethanol and adipic acid in a batch reactor in which water as a side product was removed by azeotropic evaporation. The study was done through comparative experimental tests where the factors studied included entrainer, mercaptoethanol excess, and reactor volume. It was found that the products obtained were liquid at room condition having clarity in the 95%-99% range, sulfhydryl content in the 23.3%-24.3% range, and yield in the 83.7%-92.1% range. Clarities, sulfhydryl contents, and yields at 20% and 40% mercaptoethanol excesses were not significantly different. At 1 L and 5 L reactor volumes, sulfhydryl contents were found to be significantly different but clarities and yields were not significantly different. Both n-hexane and cyclohexane could be used as entrainers to remove water in the synthesis of dimercaptoethyl adipate. Both entrainers gave clarities and yields that are not significantly different. n-hexane resulted in sulfhydryl content which was 0.77% higher than that of cyclohexane. However, bearing in mind health factors, cyclohexane is considered to be better than n-hexane.

Study on lanthanum-pentaerythritol alkoxide as a thermal stabilizer for rigid polyvinyl chloride

2015 ◽  
Vol 23 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Linghua Xie ◽  
Degang Li ◽  
Ming Fu ◽  
Jun Zhang ◽  
Lipeng Zhang ◽  
...  
Keyword(s):  
Polyvinyl Chloride ◽  
Thermal Stabilizer

A Replica Technique for the Inside Surfaces of Small Diameter Pipes and Tubes

1967 ◽  
Vol 25 ◽  
pp. 352-353
Author(s):  
T. G. Gregory
Keyword(s):  
Polyvinyl Chloride ◽  
Small Diameter ◽  
Replica Technique ◽  
Tube Size ◽  
Inside Diameter ◽  
Complete Inspection ◽  
Operating Limits

A nondestructive replica technique permitting complete inspection of bore surfaces having an inside diameter from 0.050 inch to 0.500 inch is described. Replicas are thermally formed on the outside surface of plastic tubing inflated in the bore of the sample being studied. This technique provides a new medium for inspection of bores that are too small or otherwise beyond the operating limits of conventional inspection methods.Bore replicas may be prepared by sliding a length of plastic tubing completely through the bore to be studied as shown in Figure 1. Polyvinyl chloride tubing suitable for this replica process is commercially available in sizes from 0.037- to 0.500-inch diameter. A tube size slightly smaller than the bore to be replicated should be used to facilitate insertion of the plastic replica blank into the bore.

Neural networks-based thermal lifetime prediction of polyvinyl chloride

2010 ◽  
Vol 35 (2) ◽  
pp. 113-127
Author(s):  
Mohammed Nedjar ◽  
Slimane Rezgui
Keyword(s):  
Neural Networks ◽  
Polyvinyl Chloride ◽  
Lifetime Prediction
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