交联度
- 网络Degree of crosslinking;Cross-linking degree;crosslinking degree;degree of cross linking
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结果表明:环氧丙烯酸酯化反应的适宜温度为(90~110)℃,UV固化后树脂体系的线收缩率约为2.4%,且固化程度好,交联度高。
The results show that preference temperature of esterification reaction is from 90 ℃ to 110 ℃, linear shrinkage rate of resins system after UV-cured is about 2.4 % , and the resins system have good state of cure and high degree of cross linking .
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EVA胶膜交联度的研究
Study on the Crosslinking Degree of EVA film
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本文引入交联度这个参数,能同时相对定量地表示DNA总交联、DNA-蛋白质交联和DNA链间交联。
The parameter of Crosslink Degree suggested in this paper could quantitate the two kinds of DNA crosslinks .
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实验通过DNA微孔滤膜碱洗脱法测得了不同紫外光照射时间与DNA交联度的关系。
In this series of experiments , I discover the relation between the ultraviolet dose and the DNA cross-linking degree through DNA filter elution method .
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交联度过高的产品会降低改性PVC的强伸性能。
The product with too high crosslinking degree could decrease the tensile strength and elongation of its modified PVC .
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一般异氰酸酯指数大,则DMPA含量要高。当异氰酸酯指数大于2时生成的聚合物交联度相对较高。
In general , the content of DMPA will increase with the index .
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VA含量对交联度大的已形成完善网络结构EVA的形状回复率的影响并不明显,形状固定率略降低。
In the case of high content of DCP , the content of VA has little influence on the shape recovery and fix rate .
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结果表明,改性的UF树脂固化后的交联度大于未改性树脂固化后的交联度。
The results showed the degree of the crosslinking of the modified UF resin was higher than that of the untreated UF resin .
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对EB辐照薄膜的某些性能指标,如表面接触角、分子量、交联度及拉伸强度、断裂伸长率等进行了测试。
Some performance indexes such as surface contact angle , molecular weight , crosslinkage , tensile strength and break elongation etc. were investigated .
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应用不同交联度的聚合物Wittig试剂合成亚洲玉米螟性信息素
Synthesis of Insect Sex Pheromone of Asian Corn Borer with Various Link Polymeric Wittig Reagents
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结果表明,PVA缩醛化产物的降解性均明显低于未改性PVA的降解性,并随着缩醛度或交联度的增加而下降。
The results revealed that the biodegradability of PVA acetals is inferior to that of the unmodified PVA , and declines as the acetalizing or cross-linking degree increases .
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结果表明,适当的交联度、较薄的橡胶核壳层有利于改善PVC的韧性。
The results indicate that the particles with a suitable crosslinking degree of the rubber core and a thinner shell were an excellent toughening agent to improve the impact resistance of PVC .
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试样的吸附值随DS的增大而增大,随交联度的增大而降低。
The results indicate that the sorption values of samples are increased as the degree of substitution ( DS ) increases and decreased as the degree of crosslinking raises .
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系统研究了EPA乳胶膜中环氧树脂的含量对交联度、玻璃化温度(Tg)、硬度以及交联固化后的乳胶膜的耐水性能的影响。
The effect of epoxy resin content in EPA latex film on the cross-linking degrees , glass transition temperature ( Tg ), rigidity and water resistant was discussed in detail .
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结果表明,加入DCP后,废橡胶胶粉/HDPE/POE共混物的交联度增加。
The results show that the addition of DCP improves the crosslinking degree of the waste rubber powder / HDPE / POE composites .
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结果表明交联度为5%(mol)的凝胶型树脂(简称G5树脂)对羧酸和醇等有机物的吸附特性优良。
The results show that the gel resin with 5 % ( mol ) crosslinking degree is a good adsorbent for carboxylic acids .
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研究了PPC的添加量、硫化剂的种类及用量、硫化时间、硫化温度和添加炭黑对共混弹性体的物理力学性能、交联度的影响。
The effects of PPC content , curing agent , curing temperature , curing time and adding carbon black on the mechanical properties of the blends were studied .
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实验结果表明:当MF交联度较低时,可以溶解于pH<1.7的盐酸,因此可用作逐层自组装制备空腔微球的模板。
Because weakly crosslinked MF microspheres can dissolve in the hydrochloric acid at pH < 1.7 , it can be used as the template to prepare hollow microspheres by the layer-by-layer self-assembly technique .
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通过凝胶分析知道交联度与辐照剂量、LDPE树脂的物理性能和EVA树脂在混合体系的含量有关。
By analyzing the gel content of the foam sheet , it showed that irradiation dose , the physical properties of LDPE resin and the EVA proportion in the blends had close relationships to crosslinking degree .
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Ag离子与三乙醇胺的配位,降低了三乙醇胺的碱度,通过改变Ag离子的含量,可以调节聚甘油高分子网络的聚合度和交联度。
Because of the coordination with Ag + ion , the alkalinity of triethanolamine was reduced , and thus , the degrees of the polymerization and crosslinking of polyglycerol could be regulated by changing the molar ratio of Ag / Ti .
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结果表明,PGS是一种由溶胶和凝胶组成的低交联度聚酯,其中溶胶含量大于75%;
The results showed that PGS was a polyester with low crosslinking density , and composed of sol and gel with sol content more than 75 % .
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实验结果表明:增大P(AAcAAm)水凝胶的交联度和电荷比值有利于吸附过程的进行,并强化了引发过程(initiationprocess)而抑制了协同过程(cooperativeprocess)。
The experimental results showed that the increase in crosslinkage and charge density of P ( AAc / AAm ) hydrogels was favorable for adsorption and enhanced effectively the initiation process but strongly suppressed the cooperative process .
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通过对GIF在不同交联度葡聚糖凝胶中kd的分析表明,小牛脾脏GIF的分子量约为496~695u左右。
Analysing the kd of GIF in three types of different Dextran gels , the molecular weight of GIF from calf spleen was estimated to be in the range of 500-700 dalton .
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EVA的添加量在10phr之内,绝缘料的MFR、介电强度、热延伸性能、断裂伸长率、体积电阻率、交联度满足技术指标要求;
When EVA content is within 10 phr , the PE insulant 's MFR , dielectric strength , thermal extensibility , elongation at break , volume resistivity and crosslinkage can meet the technical requirements .
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同时对橡胶相的交联度、接枝率、粒径以及树脂相的分子量等因素与AAS树脂性能的关系进行了研究;
Studies on the relationships between the properties of AAS resin with the percentage of graft-copolymerization ; the diameter of the emulsion particles and the molecular weights of the resin phase have also been carried out .
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羟基化合物和环氧基发生扩链反应,降低了固化物的交联度;冲击强度达到25kJ/m~2以上,电性能也得到一定的改善,是较理想的F级灌封材料。
The crosslink density in the cured resin would be decreased by the extension-chains reaction of hydroxyl compound with epoxy group The impact strength has reached 25kJ / m ~ 2 and the electrical property been modified . This epoxy resin is a nice grade F casting material .
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基于上述结果,预测了使接枝物加工性能达到最佳的交联度。此外,还根据PBA的玻璃化转变温度及接枝物两相相容状况,阐述了接枝共聚物加工性能的变化机理。
Furthermore , the mechanism of change for the processability of graft copolymers is discussed , and the optimal value of the crosslinking density of PBA is predicted based on the experimental results .
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紫外线照射可促进胶原单体的自组装,照射3h后胶原纤维交联度明显增加,形成的纤维束直径在100nm左右,且相互交织呈网状结构;
It was found an obvious increase in the degree of collegen crosslinking after 3 h UV radiating . An network structure was observed and the diameter of collagen fiber was about 100 nm .
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以自制MQ硅树脂改善加成型室温硫化硅橡胶的性能,结果表明,MQ硅树脂可以增大加成型室温硫化硅橡胶的交联度,延长其固化时间,有效地改善其力学性能;
Self-made MQ silicone resin was used to improve the properties of addition-cured ambient vulcanization silicone rubber . With the increasing of the MQ silicone resin , the crosslinkage of the silicone rubber was enhanced , setting time was prolonged and mechanical properties were improved .
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结果表明交联度为10%、引入二甲胺的R-3树脂对三萜酸的吸附选择性最佳。
The results showed that adsorbent R-3 with 10 % crosslink degree and dimethylamine group performed the most appropriate power to purify triterpenoid acids .