4results about How to "Avoid sticking in" patented technology

The invention relates to the technical field of adhesives, in particular to a multifunctional sanitary material hot-melt pressure-sensitive adhesive and a preparation method thereof. The multifunctional sanitary material hot-melt pressure-sensitive adhesive is prepared from the following raw materials in parts by mass: 15 to 16 parts of SBS (Styrene Butadiene Styrene), 4 to 5 parts of SIS (Styrene Isoprene Styrene), 50 to 60 parts of petroleum resin and 20 to 30 parts of softening agent. The hot-melt pressure-sensitive adhesive prepared by the preparation method disclosed by the invention has the strong adhesive property of a structural adhesive and the excellent creep resistance of a rubber band adhesive, can meet the dual requirements of adhesion between sanitary material layers and rubber band fixation, and can improve the performance stability and market competitiveness of a product after being used.

The utility model discloses a photovoltaic device cleaning device which comprises a cleaning table, a containing groove is formed in the cleaning table, a photovoltaic device body is placed in the containing groove, two sets of installation bases are arranged on the cleaning table in a sliding mode, and a cleaning cylinder is rotationally arranged between the two sets of installation bases. Brush bristles are fixedly installed on the circumferential face of the cleaning cylinder, the cleaning cylinder is hollow, water spraying holes are formed in the circumferential face of the cleaning cylinder, a water conveying hose is fixedly installed on one side of the set of installation bases, a through groove is formed in the set of installation bases, and the through groove is communicated with the water conveying hose and the interior of the cleaning cylinder. According to the utility model, impurities on the surface of the photovoltaic device body are cleaned through the cooperation of the bristles which rotate while moving and the sprayed cleaning liquid, thereby preventing the impurities from reducing the bonding effect between the packaging material and the photovoltaic device body, improving the sealing performance of the photovoltaic device body after packaging, and improving the reliability of the photovoltaic device body. And meanwhile, the solar radiation receiving capability of the photovoltaic device body is ensured.

The invention discloses a multifunctional portable modularized full-hydraulic drilling machine which comprises a modularized machine body structure, a power head module, a dry type drilling system and a core sample in-situ protection mechanism. The machine body is divided into a power head, a gasoline power station, a base and a mast sliding frame module, the weight of a single piece is smaller than or equal to 60 kg, and the machine body is detachably connected with a high-pressure oil pipe through a quick-release connector. The power head is integrated with an impact mechanism and a swing mechanism, and three working modes are switched through a reversing valve. According to the dry type drilling system, drilling tool cooling and hole bottom deslagging are achieved through compressed gas, and the core sample in-situ protection mechanism reduces core sample disturbance through an anti-sticking coating on the inner wall of a drilling tool and an airflow purging assembly. The multifunctional portable modularized full-hydraulic drilling machine has portability, multifunctionality and environmental protection performance, is suitable for complex terrains and various stratums, improves the drilling efficiency, guarantees the sampling quality and is suitable for shallow geological survey scenes.

This invention relates to a low-temperature, high-elasticity hot melt adhesive film and its preparation method. The hot melt adhesive film, by weight, comprises: 30-50 parts of modified SIS elastomer, 15-25 parts of polyamide resin, 8-15 parts of polycaprolactone diol, 5-10 parts of plasticizer, 8-15 parts of tackifier, 0.5-2 parts of antioxidant, and 0.3-1 parts of heat stabilizer. The modified SIS elastomer is methyl methacrylate-grafted modified SIS with a grafting rate of 8%-15% and a number-average molecular weight of 80,000-120,000. The polyamide resin has a melting point of 70-90℃ and a number-average molecular weight of 5,000-8,000. The hot melt adhesive of this invention has a melting point controlled at 70-90℃, allowing for low-temperature ironing at 90-100℃, effectively protecting temperature-sensitive fabrics such as silk and preventing high-temperature damage. Simultaneously, with the modified SIS elastomer as the core and the cross-linking effect of polycaprolactone diol, it possesses excellent elasticity and flexibility.