1、透氣性

1. Breathability

遮(zhe)陽(yang)篷(peng)(peng)的(de)(de)透氣性是必須考慮的(de)(de)，尤其是軍用遮(zhe)陽(yang)篷(peng)(peng)。結構、密度、材料、防水涂(tu)料種(zhong)類(lei)和樹(shu)脂(zhi)附(fu)著(zhu)力是影響(xiang)透氣性的(de)(de)因(yin)素(su)。隨著(zhu)樹(shu)脂(zhi)附(fu)著(zhu)力的(de)(de)增加，遮(zhe)陽(yang)篷(peng)(peng)的(de)(de)透氣性降低。當然，這(zhe)和整理(li)劑(ji)有關(guan)。

The breathability of sunshades must be considered, especially for military sunshades. Structure, density, material, type of waterproof coating, and resin adhesion are factors that affect air permeability. As the resin adhesion increases, the breathability of the sunshade decreases. Of course, this is related to the finishing agent.

2、抗拉強度

2. Tensile strength

篷布(bu)在使用(yong)(yong)中應能承受各種拉力，如固定時的(de)(de)拉力、使用(yong)(yong)過程(cheng)中的(de)(de)風、雨、結(jie)等附加力。雖然有(you)這些外力作用(yong)(yong)，但還是(shi)需要保(bao)持(chi)原(yuan)有(you)的(de)(de)形(xing)狀，不易變形(xing)，這就要求(qiu)篷布(bu)的(de)(de)拉伸(shen)(shen)強(qiang)度(du)(du)很高，垂直和水平拉伸(shen)(shen)強(qiang)度(du)(du)不宜相差太大(da)。特別(bie)是(shi)對于用(yong)(yong)于充氣施工(gong)的(de)(de)大(da)型方艙來說，拉伸(shen)(shen)強(qiang)度(du)(du)尤為重要。基布(bu)通(tong)常由高強(qiang)度(du)(du)聚(ju)(ju)酯、聚(ju)(ju)酯等長(chang)纖(xian)維(wei)織物制成(cheng)。表面用(yong)(yong)氯乙烯(xi)樹脂(zhi)和氯磺化聚(ju)(ju)乙烯(xi)樹脂(zhi)處理。產品的(de)(de)強(qiang)度(du)(du)主要取決于纖(xian)維(wei)材料的(de)(de)強(qiang)度(du)(du)和織物的(de)(de)密度(du)(du)。

The tarpaulin should be able to withstand various tensile forces during use, such as the tension during fixation, and additional forces such as wind, rain, and knots during use. Although there are external forces, it is still necessary to maintain the original shape and not easily deform, which requires the tensile strength of the tarpaulin to be high, and the vertical and horizontal tensile strength should not differ too much. Especially for large shelters used for inflatable construction, tensile strength is particularly important. The base fabric is usually made of high-strength polyester, polyester and other long fiber fabrics. The surface is treated with vinyl chloride resin and chlorosulfonated polyethylene resin. The strength of a product mainly depends on the strength of the fiber material and the density of the fabric.

3、彈(dan)性表皮和(he)尺(chi)寸穩定性

3. Elastic skin and dimensional stability

它們(men)常用于(yu)緊張的環(huan)境中，作(zuo)為雨(yu)棚和溫室。織物的伸長率不宜過大，其尺寸穩(wen)定(ding)性(xing)取決于(yu)材料的蠕變性(xing)能。

They are commonly used in tense environments as canopies and greenhouses. The elongation of the fabric should not be too large, and its dimensional stability depends on the creep performance of the material.

4、耐水性

4. Water resistance

防水是防水布的一(yi)個重要特點。氯乙烯樹脂通過浸漬填充到織物結構(gou)的縫(feng)隙中，形(xing)成薄膜(mo)。如果單位面(mian)積的樹脂附著(zhu)力(li)超過一(yi)定程度，耐水性不成問題(ti)。如果薄膜(mo)較薄，在彎曲、摩(mo)擦或磨(mo)損時容易(yi)斷裂(lie)，可能會產生渾水。

Waterproofing is an important feature of waterproof cloth. Vinyl chloride resin is impregnated and filled into the gaps of the fabric structure to form a thin film. If the resin adhesion per unit area exceeds a certain level, water resistance is not a problem. If the film is thin, it is prone to breakage during bending, friction, or wear, and may produce muddy water.