A complex type β nucleating agent and its preparation and application
A technology of β-nucleating agent and nucleating agent, which is applied in the field of preparation of complex type β-nucleating agent, can solve the problems of different processing conditions, different dispersion of nucleating agent, and different degree of hydrogen bond destruction
Active Publication Date: 2020-10-27
山西科灜科技有限公司
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Problems solved by technology
Aromatic diamide β-nucleating agents have amide groups in the molecules, and hydrogen bonds will be generated between molecules. During processing, due to the different properties of polypropylene resins and different processing conditions, the aromatic diamide β-nucleating agents The degree of hydrogen bond destruction between molecules is different, and the dispersion degree and shape of the nucleating agent are different in the processing of polypropylene resin, resulting in poor stability of nucleation efficiency
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0024] Mix 7.4kg of lanthanum laurate and 16.5kg of N,N'-dicyclohexyl terephthalamide in a high-speed mixer for 3 minutes, then add them to the kneader, react at 150°C for 0.5 hours, discharge, cool and pulverize to obtain the product .
[0025] Infrared analysis: ν N-H (3317cm -1 ), δ N-H (1543cm -1 ).
Embodiment 2
[0027] Mix 8.14kg lanthanum myristate and 13.2kg N,N'-dicyclohexyl terephthalamide in a high-speed mixer for 3 minutes, then add them to the kneader, react at 140°C for 0.6 hours, and then discharge and cool crushed products.
[0028] Infrared analysis: ν N-H (3317cm -1 ), δ N-H (1545cm -1 ).
Embodiment 3
[0030] 10kg of lanthanum stearate and 10kg of N,N'-dicyclohexylterephthaloyl were mixed in a high-speed mixer for 4 minutes, then added to a kneader, reacted at 140°C for 0.8 hours, discharged, cooled and pulverized to obtain the product.
[0031] Infrared analysis: ν N-H (3318cm -1 ), δ N-H (1548cm -1 ).
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Abstract
The invention discloses a complexing beta nucleating agent, as well as a preparation method and application thereof. The nucleating agent is generated by complexing long carbon chain fatty acid lanthanite and a para-aromatic diamide beta nucleating agent, and has a structure as shown in a formula (I) in the specification, wherein x is more than or equal to 10, y is 3, z is 3, the ratio of m to n is more than or equal to 0.2 and less than or equal to 1, M is rare-earth metal lanthanum, and R is cyclohexyl. The invention further discloses a method for preparing the complexing beta nucleating agent, which comprises the following steps: mixing the long carbon chain fatty acid lanthanite and para-aromatic diamide beta nucleating agent in a high-speed stirrer for 3-5 minutes; adding into a kneading machine to react for 0.5-1.0 hour at 130-150 DEG C; and discharging, cooling and grinding to obtain the complexing beta nucleating agent. The complexing beta nucleating agent is mainly applied topolypropylene resin, has a stable structure, is low in sensitivity to processing condition change, good in compatibility with polypropylene resin, and good in efficiency stability by using beta induction in polypropylene resin, and improves the size stability of a product.
Description
technical field [0001] The invention relates to the technical field of preparation of β-nucleating agents, in particular to a preparation method and application of a complex type β-nucleating agent. Background technique [0002] Polypropylene resin is low in price and excellent in performance. It has the fastest growth rate, great development potential and wide application among the five general-purpose synthetic resins. Due to its own structural characteristics, the disadvantages of polypropylene resin are also obvious, such as the side methyl groups on the molecular chains reduce the chain flexibility, and the large spherulite particles make it high embrittlement temperature, poor impact resistance, high temperature rigidity and Insufficient transparency; poor dyeability, adhesion, electrical resistance, hydrophilicity, and compatibility with polar polymers and inorganic fillers; large processing shrinkage, poor creep resistance, and poor dimensional stability of products ...
Claims
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IPC IPC(8): C08K5/098C08K5/20C08L23/12
CPCC08K5/098C08K5/20C08L2205/242C08L23/12
Inventor 王克智毛晨曦张建军王凯李向阳李训刚张鸿宇苏丽丽刘凤玉巩翼龙李少阳张惠芳代燕琴杨树竹唐钰王晶王晨陆朝阳
Owner 山西科灜科技有限公司