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Synthesis and Applications of Reactive Triazine Based Uv Protectors for Textile

Thesis Info

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Author

Sahar, Anum

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Chemistry

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11769/1/Anum%20Sahar%20chemistry%202019%20uaf%20fslbd%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727432674

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Human body is very delicate towards harsh environmental variations. High energy UV radiations intentionally or unintentionally interact with our skin and eyes, causing some acute effect such as, photokeratitis, skin aging and also some chronic effects like melanoma skin cancer and DNA damage. Clothing is an important precautionary measure to combat with these damages, but low weight and high porosity of cotton fabric make it unfit for protection against UV rays. Hence, to improve the protection factor of white cotton fabric, computational approach was utilized to search the effective UV absorbers for cotton fabric. The Density Functional Theory (DFT) theory with three functionals was utilized to study the design molecules and results indicated that all the five design molecules (1-5) absorbed inthe UV region of the solar spectrum. These deigned molecules were synthesized via a condensation reaction and their structure confirmation attained through UV/Vis., FTIR and ESI-MS analysis. The theoretically calculated λmax and experimental λmax of all the five UV absorbers were in close agreement. The cottonfabric was treated with designed and synthesized UV absorbers via the exhaust method of dying and its processing conditions optimized by adapting a statistical design “central composite rotatable design” of response surface methodology. The outcomes directed that all the synthesized molecules showed 65-78 % exhaustion and 62-80 % fixation at the acquired optimized conditions. Maximum exhaustion with cotton fabric was presented by 1 and minimum shown by 5. The protection factor of the treated cotton fabric was assessed and results directed that the treated fabric with 1-4 fells in the very good Ultraviolet Protection Factor (UPF) range at 3 % concentration while fabric treated with 5 fells in good range. The UPF increased as follows: 5 <4 < 2<3<1. Whiteness index test results revealed that all the synthesized molecules did not decrease the whiteness of the fabric as much at 3 % concentration, but after exposition to light fastness testing decreased its whiteness little bit as compared to standard. Washing test results indicated that UPF of treated fabric decreased after washing process, with UV absorbers (1-4), it remained in the very good range of UPF after ten washings. While the 5 showed more reduction in UPF value after washing. Degradation studies revealed that synthesized molecules were degradable by safer advance oxidation process technology. Current study opened a new prospect for search of such molecules having more persistent nature after laundry action.
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نواب مقصود جنگ بہادر مولانا حکیم مقصود علی خاں

نواب مقصود جنگ مولاناحکیم مقصود علی خاں
اسی طرح کادوسرا حادثہ نواب مقصود جنگ مولانا حکیم مقصود علی خاں صاحب کاپیش آیا۔ مرحوم ایک طبیبِ حاذق، ممتاز عالمِ دین اور بہترین خطیب و مقرّرتھے۔زندگی کابڑا حصّہ حیدرآباد میں بسر کیااورکوئی شبہ نہیں کہ بڑی شان سے بسر کیا۔ ہوش مندی، معاملہ فہمی، صاف گوئی،جرأتِ حق اورپاسِ وضع میں اپنا جواب نہیں رکھتے تھے۔نظام دکن کے طبیبِ خصوصی اورمصاحبِ خاص ہونے کے باوجود حیدرآباد کی عوامی زندگی میں بھی پوری طرح دخیل تھے،ہراجتماعی کام میں بڑھ چڑھ کرحصّہ لیتے تھے اور ہرطبقے میں اُن کی رائے کاوزن محسوس کیاجاتا تھا یہی وجہ ہے کہ ریاست کے ختم ہونے کے بعد بھی اُن کے مقامِ عظمت میں کوئی فرق نہیں آیاتھا۔عمر بھر طبِ یونانی کی بے لوث خدمت کرتے رہے، جہاں تک فن کاتعلق ہے سچ تویہ ہے ان کی سرگرمیوں سے اس فن کے تنِ بے جان میں روحِ تازہ آگئی تھی، حیدرآباد کاطبیّہ کالج اور انجمن اسلامیہ اُن کی زندگی کے شاندار تعمیری کارنامے ہیں اور جب تک یہ ادارے قائم ہیں اُن کے جذبۂ خدمتِ خلق پرگواہی دیتے رہیں گے۔ ’’دارالعلوم دیوبند‘‘ ’’جمعیۃ علماء ہند‘‘ اور ’’ندوۃ المصنفین‘‘سے بھی ربطِ خاص رکھتے تھے۔ پیرانہ سالی ،ضعیفی اور معذوری کے باوجود طویل سفر کی صعوبتیں برداشت کرتے تھے اور دارالعلوم کی مجلسِ شوریٰ کی کارروائیوں میں جوانوں کی طرح حصّہ لیتے تھے اوراُن کے تجربے ،خلوص اور حُسنِ تدبّر سے بہت سے نازک اور اُلجھے ہوئے مسئلوں میں مدد ملتی تھی۔
۱۹۵۰ء میں حیدرآباد میں جمعیۃ علماء ہند کاجو تاریخی اجلاس ہواتھا اس کی کامیابی مرحوم ہی کی جدّوجہد اوراثر ورسوخ کی رہینِ منّت تھی،صدر استقبالیہ کی حیثیت سے مرحوم نے اس اجتماع میں جو خطبہ پڑھا تھااُس سے ان کے علمی پایہ اور سیاسی بصیرت کابخوبی اندازہ ہوسکتا ہے۔
راسخ العقیدۃقدیم عالم دین ہونے کے باوجود...

الترجمة و السنة النبوية: تحديات و حلول

Allah Almighty sent the Holy Prophet Muhammad (PBUH) with the message of Islam to take the humankind out of darkness into the light guidance. Translation plays an effective role to disseminate the divine message and the teaching of the Holy Prophet (PBUH) to the humankind in various languages. Translating Seerah Nabviah is a challenging job. Only those scholars who have sufficient knowledge about the terminologies relating to hadith studies in addition to other translation skills can carry out the translating process for Hadith’s text. This research paper primarily discusses the importance of translation to disseminate the teachings of Seerah Nabviah to the humankind. It also focuses on the answer of the question about the legitimacy of the translation of Seerah Nabviah through some arguments based on the Quranic verses, Hadiths and Juristic laws. In addition to that, it highlights various challenges and problems facing translators while translating the text of Hadith. It also deliberates some rules and mechanisms to deal with these challenges indicating tosome adequate solutions for rendering the text of Hadith. It mentions some reasons that cause occurring mistakes while translating the text of Hadith. It contains some recommendations and suggestions by mentioning some mechanisms at individual and collective level for taking initiatives towards the translating process for Hadith’s text.

Modeling the Potential Impacts of Climate Change and Adaptation Options for Rainfed Wheat

The environment of our globe is changing due to climate change (CC) which is influencing agricultural and agronomic practices. Being open to vagaries of nature, agriculture sector is highly vulnerable to climate change phenomena. Any change in climate ultimately influenced food security. Keeping in view the climate change phenomenon the current study aided with simulation modeling was carried out during wheat growing season of 2013-14 and 2014-15 at rainfed Pothwar. Experiments arranged in Randomized Complete Block Design were conducted having five wheat genotypes (Dharabi, Chakwal-50, NARC-2009, Pak-13 and AUR- 809), four sowing dates (21-30 Oct, 10-20 Nov, 01-10 Dec and 20-30 Dec of 2013- 14 and 2014- 15), and three climatically varying locations i.e. Islamabad, URFKoont and Talagang characterized by high, medium a nd low rainfall and low, medium and high temperature areas respectively. Climate data required for the study was collected from the met observatory located at NARC and for URF-Koont and Talagang it was generated by downscaling. Increase in temperature at Islamabad (1oC), URF-Koont (4.6 oC) and Talagang (4.8oC) was observed during study period than the baseline temperature. Wheat crop days to maturity and LAI reduced by 15% and 51% respectively due to higher temperature (4.8 oC). Biological yield ranged 9.7 t ha-1 to 4.72 t ha-1 from low temperature zone (Islamabad) to higher temperature zone (Talagang). Therefore, due to 1 oC increase in temperature, 7.6% reduction in biological yield was observed. Maximum grain yield observed at Islamabad (2.39 t ha-1) while minimum grain yield recorded at Talagang (2.19 t ha-1). Similarly, among genotypes, the performance of Pak-13 and AUR-809 was better than other genotypes therefore, their genetic blood should be used in future for breeding programs. Grain growth curve was also developed in relation to temperature. Grain growth curve depicted 8.2 % reduction in individual grain weight due to 1oC increased temperature. Maximum water use efficiency was recorded at URF-Koont (7.43 kg mm-1) than Talagang (7.14 kg mm-1) and Islamabad (6.23 kg mm-1) which showed higher water productivity due to less evapotranspiration. Agricultural Production Systems Simulator (APSIM), Cropping System Model (CropSyst) and Decision Support System for Agrotechnology Transfer (DSSAT) models were parameterized. Validation skill scores like d-Index, RMSE, and coefficient of determination (R2) were used to determine the performance of models which confirmed the field results with good accuracy (R2 for grain yield was 0.97, 0.96, 0.92 for APSIM, CropSyst and DSSAT respectively). Different global circulation models (GCMs) were used under varying RCPs (Representative concentration pathways). Future projections showed that under current management practices at Islamabad, URF-Koont and Talagang wheat yield will be reduced. Under RCP 4.5, GCMs showed that during early scenarios i.e. 2030, SD2 (5-10 November sowing) will be beneficial, while under later years 15-October sowing will be beneficial.Under RCP 8.5 (higher temperature and low rainfall), GCMs showed even severe results showing reduction in wheat productivity. Adaptation based upon results should include SD2 (01-10 November sowing) for early scenarios i.e. 2030, while for later scenarios i.e. 2050 and 2070, SD1 i.e. 15-25 October sowing will be beneficial in order to avoid terminal heat stress during grain filling stages of wheat. Genotypes Pak-13 and AUR-809 showed great potential to produce sustainable crop yield under higher temperature therefore, these two genotypes should be considered for temperature extremes. Crop models should be used as decision support tools to reduce agricultural environment vulnerability to climate variability.