What is polyethylene, Biology

Assignment Help:

Q. What is Polyethylene?

Polyethylene (P) (Low density polyethylene (LDPE), medium density, linear low-density (LLDPE), high-density polyethylene (HDPE) and ethylene vinyl acetate copolymer): These materials have an excellent sealability, good moisture barrier, low temperature durability and good tear resistance. LDPE is heat sealable, odour free and shrinks when heated. It is less expensive than most films and is therefore widely used - including applications in shrink or stretch-wrapping. HDPE is stronger, thicker, less flexible and more brittle than LDPE. They are however water-proof and chemically resistant and are used instead of multi-wall paper sacks for shipping containers. Generally, polythene is used for packaging processed and fresh meats, cheese etc. High density polyethylene is used in applications such as containers, milk and detergent bottles, bags and industrial wrapping. Low density polyethylene is used for pallet and agricultural film, bags, coatings and containers.


Related Discussions:- What is polyethylene

State the designations for horizons, State the Designations for Horizons  ...

State the Designations for Horizons  Of the several horizons, the master horizons are the results of the fundamental soil forming processes, viz. humification, eluviation  and

Explain the prevalence of iodine deficiency disorders, Explain the Prevalen...

Explain the Prevalence of Iodine Deficiency Disorders? We can determine the prevalence of IDD by conducting population surveys. Most of the population surveys are based on clin

Explain fluconazole, Fluconazole Fluconazole is active against most  Ca...

Fluconazole Fluconazole is active against most  Candida species other than C. krusei, which is intrinsically resistant, and many strains of C. glabrata, which are increasingly

Oxidative phosphorylation, Oxidative phosphorylation Oxidative phosphor...

Oxidative phosphorylation Oxidative phosphorylation is a metabolic pathway which uses energy released through the oxidation of nutrients to generate adenosine triphosphate (ATP

Etiological factors involved in short bowel syndrome, Q. Etiological factor...

Q. Etiological factors involved in short bowel syndrome? The etiological factors involved in this disease are: • Anaemia • Osteoporosis • Stone formation • Decrease

Define meat as a rich source of protein, Define Meat as a Rich Source of Pr...

Define Meat as a Rich Source of Protein? Skeletal or striated muscles are used for food purposes. Flesh of cattle, sheep and swine comprise most of the meat contents. Edible me

Death of post-thymic lymphocytes induced by corticosteroid, A 21-year-old w...

A 21-year-old woman presents with a 3-month history of malaise, joint pain, weight loss, and sporadic fever. Her temperature is 38°C (101°F). The serum antinuclear antibody (ANA) t

Treatment of diabetic ketoacidosis, Q. Treatment of diabetic ketoacidosis? ...

Q. Treatment of diabetic ketoacidosis? The components of treatment of NKHDC are: 1) control of water loss. 2) control of sugar using insulin. 3) adjust electrolytes li

Explain the determination of vitamin A, Determination of Vitamin A Vita...

Determination of Vitamin A Vitamin A assay is carried out by chemical method. This method is called Carr Price Reaction.   Vitamin A and the carotenoids produce an intense b

Avian tuberculosis, Avian tuberculosis The infection in poultry usuall...

Avian tuberculosis The infection in poultry usually occurs from ingestion of contaminated food and water. The lesions develop in spleen, liver and intestines; less frequently

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd