1-1/2 дюймов, Сантехнический тройник с тройным зажимом
1,70 $ - 2,10 $
5250 т случайный сополимер HB первичный полипропилен рафия pp f401 yungsox 2080 reinas lg
- Категория: >>>
- Поставщик: Shanghai Qishen Plastic Industry Co. Ltd.
Сохранить в закладки 1600825163937:
Описание и отзывы
Характеристики
Products Description
Polypropylene, PP for short, is a polymer of propylene by adding polymerization. It is a waxy white material, transparent and light in appearance [4]. The chemical formula is (C3H6)n, the density is 0.89 ~ 0.91g/cm3, [1] flammable, melting point is 164~170℃, [17] at about 155℃ softening, the use temperature range is -30 ~ 140℃ [2]. Under 80℃ can resist acid, alkali, salt solution and a variety of organic solvent corrosion, can decompose under high temperature and oxidation action. Polypropylene is a thermoplastic synthetic resin with excellent performance. It is a colorless translucent thermoplastic lightweight general purpose plastic with chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear-resisting machining properties [5]. It is widely used in the production of clothing, blankets and other fiber products, medical instruments, automobiles, bicycles, spare parts, transportation pipes, chemical containers, and also used in food and medicine packaging.
Features:
1. No smell, tasteless, non-toxic. Is one of the lightest resins commonly used;
2. Excellent mechanical properties, including tensile strength, compressive strength and hardness, outstanding rigidity and bending fatigue resistance, the movable hinge made by PP can withstand more than 7×107 times of folding and bending without damage, low temperature impact strength is poor. The tensile strength of PP is generally 21-39 mpa; Bending strength 42-56 mpa, compression strength 39-56 mpa, elongation at break 200% ~ 400%, notched impact strength 2.2-5 kJ/m2, low temperature notched
impact strength 1-2 kJ/m2. Rockwell hardness R95~105;
3. Good heat resistance, continuous use temperature can reach 110-120℃;
4. Good chemical stability, except for strong oxidant, and most chemicals do not react; At room temperature solvent is not % 20% can dissolve PP, only some halogenated compounds, aromatics and high boiling point aliphatic hydrocarbons can make it swelling, water resistance is particularly good;
5. Excellent electrical performance, good resistance to high frequency electrical insulation parts, also has good electrical insulation in wet environment;
6. As there are many tertiary carbon atoms with methyl on the main chain of PP, hydrogen on tertiary carbon atoms is vulnerable to attack by oxygen. Therefore, the weather-aging resistance of PP is poor, and antioxidant or ultraviolet absorber must be added
7. Mice were intragastric at the dose of 8g/kg for 1-5 times, and no obvious poisoning symptoms were caused. After inhaling the decomposition products of polypropylene heated to 210 ~ 220℃ for 30 times, rats showed symptoms of irritation of ocular mucosa and upper respiratory tract. Like polyethylene, it is prohibited to use recycled products in food.
2. Excellent mechanical properties, including tensile strength, compressive strength and hardness, outstanding rigidity and bending fatigue resistance, the movable hinge made by PP can withstand more than 7×107 times of folding and bending without damage, low temperature impact strength is poor. The tensile strength of PP is generally 21-39 mpa; Bending strength 42-56 mpa, compression strength 39-56 mpa, elongation at break 200% ~ 400%, notched impact strength 2.2-5 kJ/m2, low temperature notched
impact strength 1-2 kJ/m2. Rockwell hardness R95~105;
3. Good heat resistance, continuous use temperature can reach 110-120℃;
4. Good chemical stability, except for strong oxidant, and most chemicals do not react; At room temperature solvent is not % 20% can dissolve PP, only some halogenated compounds, aromatics and high boiling point aliphatic hydrocarbons can make it swelling, water resistance is particularly good;
5. Excellent electrical performance, good resistance to high frequency electrical insulation parts, also has good electrical insulation in wet environment;
6. As there are many tertiary carbon atoms with methyl on the main chain of PP, hydrogen on tertiary carbon atoms is vulnerable to attack by oxygen. Therefore, the weather-aging resistance of PP is poor, and antioxidant or ultraviolet absorber must be added
7. Mice were intragastric at the dose of 8g/kg for 1-5 times, and no obvious poisoning symptoms were caused. After inhaling the decomposition products of polypropylene heated to 210 ~ 220℃ for 30 times, rats showed symptoms of irritation of ocular mucosa and upper respiratory tract. Like polyethylene, it is prohibited to use recycled products in food.
PP 5250T | ||||||
Physical property | standard | value | unit | |||
density | ISO 1183 | 0.90 | g/cm³ | |||
Melt index 230°C 2.16kg | ISO 1133 | 22 | g/10min | |||
mechanical behavior | standard | value | unit | |||
tensile modulus 23°C | ISO 527 | Mpa | ||||
tensile strength 23°C | ISO 527 | 27.5 | Mpa | |||
elongation 23°C | ISO 527 | 200 | % | |||
elongation break | ISO 527 | % | ||||
flexural strength 23°C | ISO 178 | Mpa | ||||
flexural modulus 23°C | ISO 178 | 932 | Mpa | |||
Izod notch impact 23°C | ISO 180 | kg-cm/cm | ||||
FAQ:
Q1. Why choose us? A1. We have been producing all sorts of plastics since 2007 and we offer very competitive prices for all our products.
Q2. Can I customize the product?
A2. Abosolutely. We can do the products and packages according to customers' requirements.
Q3. Can I have free samples?
A3. We can offer free samples below 25kg, but customers have to bear the shipping cost.
Q4. What's the delivery time?
Q4. What's the delivery time?
A4. 5-10 days. Only when the quantity exceeds 10000kg delivery time will be agreed by negotiations.
Q5.How to order?
Q5.How to order?
A5. Inquiry → Quotation → Negotiation → Samples → PO/PI → Mass production →Booking → Balance/Deliver →Further.
Q6. Do you have Alibaba Trade Assurance for the payment?
Q6. Do you have Alibaba Trade Assurance for the payment?
A6. Yes. We have the option of Trade Assurance for customers to secure the payment.
Shanghai Qishen Plastic Industry Co., Ltd.
Add.: Building 3 No. 1188 FengLiang Road, Feng Xian District, Shanghai 201411
Add.: Building 3 No. 1188 FengLiang Road, Feng Xian District, Shanghai 201411
Name:Johanna
WhatsApp：+86 17701802483
WhatsApp：+86 17701802483
Phone: +86 17701802483
Email: sales07@shqishen.com
Website: //www.shqishen.com ,
https://qishensh.en.alibaba.com
Website: //www.shqishen.com ,
https://qishensh.en.alibaba.com
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