方便袋是我們?nèi)粘Ｙ?gòu)物普遍的包裝物，白色污染的主要構(gòu)成，主要材料以聚乙烯薄膜為主，也就是我們所說的塑料，所以也叫做塑料袋。下面來(lái)講講濟(jì)南方便袋本身的材質(zhì)使用：

Convenience bags are a common packaging material for our daily shopping, and the main component of white pollution is polyethylene film, which is also known as plastic bags. Let's talk about the material usage of Jinan convenience bags themselves:

常用的食品方便袋多為聚乙烯薄膜制成，該薄膜，故可用于盛裝食品。還有一種薄膜為聚氯乙烯制成，聚氯乙烯本身也性，但根據(jù)薄膜的用途所加入的添加劑往往是對(duì)人體有害的物質(zhì)，具有一定的毒性。所以這類薄膜及由該薄膜做的方便袋均不宜用來(lái)盛裝食品。

Commonly used food convenience bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food. Another type of film is made of polyvinyl chloride, which is also non-toxic. However, the additives added according to the purpose of the film are often harmful substances to the human body and have a certain degree of toxicity. Therefore, neither this type of film nor convenience bags made from this film should be used to hold food.

聚乙烯薄膜

Polyethylene film

薄膜呈乳白色，半透明狀（幾層疊起來(lái)觀察尤其明顯），摸起來(lái)較潤(rùn)滑，好像表面上涂有蠟層，用力抖動(dòng)，聲音發(fā)脆，遇火易燃，火焰黃色，燃燒時(shí)有粘液滴落，并有蠟燭燃燒時(shí)的氣味。

The film is milky white, semi transparent (especially noticeable when stacked several times), and feels relatively smooth, as if the surface is coated with a wax layer. When shaken forcefully, the sound becomes brittle, flammable when exposed to fire, the flame is yellow, and there are droplets of mucus during combustion, with the odor of candles burning.

聚氯乙烯薄膜

Polyvinyl chloride film

如不加色素，為透明狀，摸起來(lái)其表面有些發(fā)粘，用力抖動(dòng)，聲音低沉，遇火不易燃燒，離火焰即熄，火焰呈綠色。

If not pigmented, it is transparent and feels a bit sticky to the touch. It shakes vigorously and has a low voice, making it difficult to burn when exposed to fire. It extinguishes immediately after leaving the flame, and the flame appears green.

新型材料

new materials 

HDPE

HDPE

高密度聚乙烯（HighDensityPolyethylene，簡(jiǎn)稱為“HDPE”），是一種結(jié)晶度高、非極性的熱塑性樹脂。

High Density Polyethylene (HDPE) is a thermoplastic resin with high crystallinity and non polarity.

新材料的優(yōu)勢(shì)

Advantages of New Materials

與傳統(tǒng)方便袋相比HDPE擁有著較多的優(yōu)勢(shì)：

Compared to traditional convenience bags, HDPE has many advantages:

1、水溶速度可設(shè)計(jì)選擇，完全溶解于水，無(wú)污染；

1. The water solubility rate can be designed and selected, completely soluble in water, non-toxic and pollution-free;

2、拉伸度強(qiáng)，張力好；

2. Strong tensile strength and good tension;

3、透明度高，光澤好；

3. High transparency and good gloss;

4、柔軟度高，觸感好；

4. High softness and good tactile sensation;

5、耐油、耐溶劑性好，可熱封、可印刷；

5. Good oil and solvent resistance, suitable for heat sealing and printing;

6、透氣系數(shù)低，阻氣性好；

6. Low permeability coefficient and good air resistance;

7、可加塑料子母扣或自粘膠袋；

7. Can add plastic buckles or self-adhesive bags;

8、抗靜電性能優(yōu)良，不吸塵等。日常購(gòu)物普遍的包裝物，白色污染的主要構(gòu)成

8. Excellent anti-static performance, no dust collection, etc. Packaging materials commonly used in daily shopping, the main component of white pollution

方便袋的發(fā)明給人類生活帶來(lái)了很大的方便,但是越來(lái)越多的人不懂得如何有效的使用,導(dǎo)致了方便袋污染，所以使用時(shí)要多加注意，更多事項(xiàng)就來(lái)我們網(wǎng)站http://lihot.net咨詢吧！

The invention of convenience bags has brought great convenience to human life, but more and more people do not know how to effectively use them environmentally, which has led to pollution of convenience bags. Therefore, it is necessary to pay more attention when using them. For more information, please visit our website http://lihot.net Consult!