This article describes the aging reasons and phenomena of polypropylene woven sack without adding anti-aging agent.
阐述了未添加抗老化剂的聚丙烯编织袋的老化原因及现象。
In addition, the abomination agent can permeate a wall inside certain depth, thus subject to ultraviolet irradiation and atmospheric aging less influence and long service life.
此外，该憎水剂能渗透到墙内一定深度，因而受紫外线照射及大气老化影响较小，使用寿命长。
The influence of TMPTA co curing agent on the curing behavior, the physical properties and the aging properties of the peroxide cured EPDM was investigated.
采用三羟甲基丙烷三丙烯酸酯(TMPTA)作共交联剂，研究其对EPDM的过氧化物硫化行为、力学性能及老化性能的影响。
The polypropylene(PP) was modified by self-made sericite-based inorganic UV-screen agent, and the mechanical properties of the PP composites after light aging were tested.
用自制的绢云母质无机紫外屏蔽剂改性聚丙烯（PP），对光老化后的PP复合材料进行力学性能测试。
Based on asphalt, some structural modifiers were used to develop the sealing agent for the enhancement of the thermal stability, cohesion and aging resistance.
本文以沥青为基料，采用结构改性剂，研制了具有优良热稳定性、粘着力及耐老化性能好的封口剂。
The stabilizing agent made the melting process steady because it held back cross-linking and aging of PVA at high temperature.
稳定剂的添加，可明显改善PVA的熔融加工稳定性，使其交联老化程度降低，薄膜的溶解性能显著提高；
The free radical network scavenging agent of the invention can play tremendous role in the production of functional cosmetics such as anti-aging, whitening, sunscreen, after-sun repair, etc.
本发明自由基网络清除剂在抗衰老、美白、防晒、晒后修复等功效性化妆品生产中可发挥巨大作用。
The free radical network scavenging agent of the invention can play tremendous role in the production of functional cosmetics such as anti-aging, whitening, sunscreen, after-sun repair, etc.
本发明自由基网络清除剂在抗衰老、美白、防晒、晒后修复等功效性化妆品生产中可发挥巨大作用。
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