38results about How to "Improve deformation recovery performance" patented technology

The invention discloses an asphalt pavement crack filling adhesive and a preparation method thereof. The crack filling adhesive is composed of a compatilizer, a modifier and a stabilizer, and a mass part ratio of the compatilizer to the modifier to the stabilizer to matrix asphalt is (1-3):(1-3):(0.05-0.3):(4-6). The preparation method of the crack filling adhesive comprises the following steps: 1, heating the matrix asphalt to 140-150DEG C, adding the compatilizer and the modifier to the matrix asphalt to obtain a mixture, heating the mixture, and stirring; and 2, shearing the mixture, adding the stabilizer, and stirring to obtain the crack filling adhesive. The crack filling adhesive prepared in the invention has the advantages of excellent high and low temperature performances, excellent deformation recovery capability, high softening point, high low-temperature elongation and proper elastic recovery rate.

The invention discloses a non-ironing processing method for yarn-dyed four-way stretch fabric garments, which comprises the following steps: (a) alkali soaking; (b) biological enzyme polishing; (c) dyeing; (d) air drying; (e) sizing (f) weaving; (g) desizing; (h) scouring and bleaching; (i) padding; (j) drying; (k) finishing; (l) shrinking. The invention has the advantages of simple process, energy saving and consumption reduction, and is easy to control, and the obtained fabric has soft and comfortable handle, delicate and soft luster, good non-ironing performance, anti-wrinkle performance, anti-pilling performance and dimensional stability.

The invention provides a non-pneumatic tire comprising a rubber tread, a base rubber vulcanized to blend with the rubber tread to a whole and an elastic support body for supporting the rubber tread in order from outside to inside along the radial direction of the non-pneumatic tire, wherein the elastic support body comprises an inner pressure-bearing ring in contact with a wheel rim, an outer pressure-bearing attached to the base rubber and a middle support body arranged between the inner pressure-bearing ring and the outer pressure-bearing ring; and the middle support body comprises first support bodies and first axial through holes evenly distributed along the circumferential direction, and the first support bodies and the first axial through holes are sequentially arranged along the direction from the outer pressure-bearing ring to the inner pressure-bearing ring. The non-pneumatic tire disclosed by the invention can help to evenly and discretely transmit the grounding pressure of the non-pneumatic tire to the middle support body, so that the grounding tread imprint shape is excellent, the distribution of the grounding pressure is relatively even, and the grounding performance is good.

The invention discloses a method for preparing a gas chromatography sample pad, which comprises the following steps: Step 1, raw material pretreatment: raw siloxane rubber, hydrophobic modified white carbon black, toner, and high-temperature-resistant additives are mixed at 130- 160 o Mixing at C for 1-3h, then mixed with the mixture of vulcanizing agent and silicone oil to obtain the pretreatment raw material; Step 2, vulcanization molding: adding the pretreatment raw material into the injection pad mold of the flat vulcanizer, at 160-200 o C, 9-14 Mpa pre-vulcanization molding 15-30min, to obtain a pre-vulcanized injection pad; step 3, post-vulcanization: put the pre-vulcanized injection pad into a blast oven, at 200-250 o C under treatment for 24-48h to obtain a vulcanized sampling pad; Step 4, plasma treatment: place the vulcanized sampling pad in a plasma source to treat the surface, the frequency of the plasma source is 2.45GHZ, the output power is 300-500W, and the vacuum The pressure in the chamber is 110-140Pa, and the processing time is 10-30min to obtain a gas chromatography sampling pad. The sample injection pad obtained by the invention has lower high temperature loss, higher strength and rebound sealing performance.

The invention relates to a fusing alloying sea-island fibre and a production method thereof, wherein the components of island and sea are respectively PTT and PE. The production method comprises the following steps: slicing the PTT and drying, mixing the PTT slices with the PE by a certain proportion; fusing and mixing the PPT and PE into a screw extruder and then jetting the mixture, finally drawing, curling and cutting the mixture to make the product. The invention overcomes the shortage of the prior art, has excellent performance and low production cost, and has favorable economic and social benefits.

The invention discloses an overlapped plate type shear wall with the restorability and a constructing method of the shear wall. The shear wall comprises an overlapped wallboard, unbonded prestressed reinforcing steel and a half-assembly overlapped plate type reinforced concrete shear wall body which is composed of outer steel plates at the positions of horizontal splicing seams. The prefabricated part of the overlapped plate type shear wall is composed of two layers of prefabricated plates and lattice steel bars having the connecting effect, after prefabricated components are installed in place on site, necessary connecting steel bars and necessary stressed steel bars are arranged, and concreting is performed at the core position of a prefabricated wallboard to form an overlapped stressed structure. According to the overlapped plate type shear wall, the post-tensioning unbonded prestressed reinforcing steel is arranged at the core cats-in-place position of the overlapped plate type shear wall, elasticity of the unbonded prestressed reinforcing steel can be kept under the condition of a rare-occurrence earthquake, and therefore residual deformation of the shear wall is small after the earthquake, the shear wall has the self reset function, and the shear wall is convenient to repair after the earthquake; the outer steel plates easy to replace after the earthquake are adopted at the positions of the horizontal splicing seams of the overlapped plate type shear wall, the steel plates bend under the condition of the rare-occurrence earthquake, energy of the earthquake is dispersed, the shear wall is convenient to replace after the earthquake, and the restorability of the shear wall is improved further.